Ameris Bancorp (ABCB) 10-Q 7 Aug 15 2015 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	Q2
Trading Symbol	ABCB
Entity Registrant Name	Ameris Bancorp
Entity Central Index Key	351,569
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		32,195,089

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Assets
Cash and due from banks	$ 115,413	$ 78,036	$ 80,986
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
Investment securities available for sale, at fair value	862,154	541,805	535,630
Other investments	9,322	10,275	10,971
Mortgage loans held for sale, at fair value	108,829	94,759	81,491
Loans, net of unearned income	2,171,600	1,889,881	1,770,059
Purchased loans not covered by FDIC loss share agreements ("purchased non-covered loans")	808,313	674,239	702,131
Purchased loan pools not covered by FDIC loss share agreements ("purchased loan pools")	268,984	0	0
Purchased loans covered by FDIC loss share agreements ("covered loans")	209,598	271,279	331,250
Less: allowance for loan losses related to non-purchased loans	(21,658)	(21,157)	(22,254)
Loans, net	3,436,837	2,814,242	2,781,186
Other real estate owned, net	22,567	33,160	35,373
Purchased, non-covered other real estate owned, net	13,112	15,585	16,598
Covered other real estate owned, net	12,626	19,907	38,426
Total other real estate owned, net	48,305	68,652	90,397
Premises and equipment, net	124,916	97,251	99,495
FDIC loss-share receivable	14,957	31,351	49,180
Other intangible assets, net	19,189	8,221	9,812
Goodwill	87,367	63,547	58,903
Cash value of bank owned life insurance	59,552	58,867	57,864
Other assets	79,089	77,748	72,420
Total assets	5,205,734	4,037,077	3,973,135
Liabilities
Noninterest-bearing	1,280,174	839,377	790,798
Interest-bearing	3,231,373	2,591,772	2,598,237
Total deposits	4,511,547	3,431,149	3,389,035
Securities sold under agreements to repurchase	75,066	73,310	51,109
Other borrowings	39,000	78,881	100,293
Other liabilities	24,026	22,384	24,457
Subordinated deferrable interest debentures	69,325	65,325	64,842
Total liabilities	$ 4,718,964	$ 3,671,049	$ 3,629,736
Stockholders' Equity
Preferred stock, stated value $1,000; 5,000,000 shares authorized; 0 shares issued and outstanding
Common stock, par value $1; 100,000,000 shares authorized; 33,608,866; 28,159,027 and 28,155,317 issued	$ 33,609	$ 28,159	$ 28,155
Capital surplus	336,212	225,015	223,888
Retained earnings	126,265	118,412	98,847
Accumulated other comprehensive income	3,072	6,098	4,123
Treasury stock, at cost, 1,413,777; 1,385,164 and 1,383,496 shares	(12,388)	(11,656)	(11,614)
Total stockholders' equity	486,770	366,028	343,399
Total liabilities and stockholders' equity	$ 5,205,734	$ 4,037,077	$ 3,973,135

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Statement of Financial Position [Abstract]
Preferred stock, stated value	$ 1,000	$ 1,000	$ 1,000
Preferred stock, shares authorized	5,000,000	5,000,000	5,000,000
Preferred stock, shares issued	0	0	0
Preferred stock, shares outstanding	0	0	0
Common stock, par value	$ 1	$ 1	$ 1
Common stock, shares authorized	100,000,000	100,000,000	100,000,000
Common stock, shares issued	33,608,866	28,159,027	28,155,317
Treasury stock, shares	1,413,777	1,385,164	1,383,496

Consolidated Statements of Earn

Consolidated Statements of Earnings and Comprehensive Income/(Loss) (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest income
Interest and fees on loans	$ 39,838	$ 35,297	$ 78,456	$ 69,766
Interest on taxable securities	3,747	2,953	6,900	5,938
Interest on nontaxable securities	462	312	931	647
Interest on deposits in other banks and federal funds sold	182	45	310	129
Total interest income	44,229	38,607	86,597	76,480
Interest expense
Interest on deposits	2,264	2,205	4,544	4,388
Interest on other borrowings	1,277	1,138	2,533	2,344
Total interest expense	3,541	3,343	7,077	6,732
Net interest income	40,688	35,264	79,520	69,748
Provision for loan losses	2,656	1,365	3,725	3,091
Net interest income after provision for loan losses	38,032	33,899	75,795	66,657
Noninterest income
Service charges on deposit accounts	7,151	5,847	13,580	11,433
Mortgage banking activity	9,727	7,002	17,810	12,166
Other service charges, commissions and fees	829	662	1,497	1,314
Gain on sale of securities	10		22	6
Other noninterest income	2,909	2,308	5,292	3,654
Total noninterest income	20,626	15,819	38,201	28,573
Noninterest expense
Salaries and employee benefits	22,465	16,942	43,097	34,336
Occupancy and equipment	4,809	4,071	9,363	8,135
Advertising and marketing expenses	833	718	1,474	1,428
Amortization of intangible assets	630	437	1,260	970
Data processing and communications costs	4,214	3,940	8,474	7,394
Credit resolution-related expenses	11,240	2,840	14,401	5,030
Merger and conversion charges	5,712	2,872	5,727	3,322
Other noninterest expenses	6,961	5,498	13,895	9,942
Total noninterest expense	56,864	37,318	97,691	70,557
Income (loss) before income tax expense (benefit)	1,794	12,400	16,305	24,673
Income tax expense	486	4,270	5,233	8,193
Net income	1,308	8,130	11,072	16,480
Less preferred stock dividends and discount accretion				286
Net income available to common shareholders	1,308	8,130	11,072	16,194
Other comprehensive income (loss)
Unrealized holding gains (losses) arising during period on investment securities available for sale, net of tax of $1,901, $1,142, $1,561 and $2,724	(3,531)	2,121	(2,881)	5,059
Reclassification adjustment for gains included in earnings, net of tax of $3, $0, $8 and $2	(6)		(14)	(4)
Unrealized gains (losses) on cash flow hedges arising during period, net of tax of $138, $200, $70 and $344	256	(372)	(131)	(638)
Other comprehensive income (loss)	(3,281)	1,749	(3,026)	4,417
Total comprehensive income (loss)	$ (1,973)	$ 9,879	$ 8,046	$ 20,897
Basic earnings per common share	$ 0.04	$ 0.32	$ 0.35	$ 0.64
Diluted earnings per common share	0.04	0.32	0.35	0.63
Dividends declared per common share	$ 0.05	$ 0.05	$ 0.10	$ 0.05
Weighted average common shares outstanding
Basic	32,184	25,181	31,318	25,163
Diluted	32,520	25,572	31,653	25,552

Consolidated Statements of Ear5

Consolidated Statements of Earnings and Comprehensive Income/(Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Unrealized holding gain (loss) arising during period on investment securities available for sale, tax	$ 1,901	$ 1,142	$ 1,561	$ 2,724
Reclassification adjustment for losses (gains) included in earnings, tax	3	0	8	2
Unrealized gain (loss) on cash flow hedges arising during period, tax	$ 138	$ 200	$ 70	$ 344

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Capital Surplus [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income, Net of Tax [Member]	Treasury Stock [Member]
Balance at beginning of period at Dec. 31, 2013		$ 28,000	$ 26,462	$ 189,722	$ 83,991	$ (294)	$ (11,182)
Balance at beginning of period at Dec. 31, 2013		28,000	26,461,769
Balance at beginning of period at Dec. 31, 2013							(1,363,342)
Net income	$ 16,480				16,480
Other comprehensive income (loss) during the period	4,417					4,417
Repurchase of preferred stock		$ (28,000)
Purchase of treasury shares							$ (432)
Stock-based compensation				1,012
Dividends on preferred shares					(286)
Issuance of common shares, amount			$ 1,599	32,875
Repurchase of preferred stock, shares		(28,000)
Purchase of treasury shares, shares							(20,154)
Dividends on common shares					(1,338)
Issuance of common shares, shares			1,598,987
Proceeds from exercise of stock options			$ 26	347
Proceeds from exercise of stock options, shares			26,514
Issuance of restricted shares			$ 68	(68)
Issuance of restricted shares, shares			68,047
Balance at end of period at Jun. 30, 2014	$ 343,399		$ 28,155	223,888	98,847	4,123	$ (11,614)
Balance at end of period at Jun. 30, 2014			28,155,317
Balance at end of period at Jun. 30, 2014	1,383,496						(1,383,496)
Balance at beginning of period at Dec. 31, 2014	$ 366,028		$ 28,159	225,015	118,412	6,098	$ (11,656)
Balance at beginning of period at Dec. 31, 2014			28,159,027
Balance at beginning of period at Dec. 31, 2014	1,385,164						(1,385,164)
Net income	$ 11,072				11,072
Other comprehensive income (loss) during the period	(3,026)					(3,026)
Purchase of treasury shares							$ (732)
Stock-based compensation				760
Issuance of common shares, amount			$ 5,320	109,569
Purchase of treasury shares, shares							(28,613)
Dividends on common shares					(3,219)
Issuance of common shares, shares			5,320,000
Proceeds from exercise of stock options			$ 59	939
Proceeds from exercise of stock options, shares			58,839
Issuance of restricted shares			$ 71	(71)
Issuance of restricted shares, shares			71,000
Balance at end of period at Jun. 30, 2015	$ 486,770		$ 33,609	$ 336,212	$ 126,265	$ 3,072	$ (12,388)
Balance at end of period at Jun. 30, 2015			33,608,866
Balance at end of period at Jun. 30, 2015	1,413,777						(1,413,777)

Consolidated Statements of Cha7

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Capital Surplus [Member]
Net issuance cost	$ 4,811	$ 0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 11,072	$ 16,480
Adjustments reconciling net income to net cash provided by operating activities:
Depreciation	3,950	3,709
Amortization of intangible assets	1,260	970
Net amortization of investment securities available for sale	2,669	1,525
Net gains on securities available for sale	(22)	(6)
Stock based compensation expense	760	1,012
Net losses on sale or disposal of premises and equipment	98	1
Net write-downs and losses on sale of other real estate owned	9,779	1,985
Provision for loan losses	3,725	3,091
Accretion of discount on covered loans	(6,251)	(15,432)
Accretion of discount on purchased non-covered loans	(5,388)	(3,153)
Changes in FDIC loss-share receivable, net of cash payments received	3,855	5,685
Increase in cash surrender value of BOLI	(685)	(620)
Originations of mortgage loans held for sale	(472,660)	(316,767)
Proceeds from sales of mortgage loans held for sale	449,570	305,546
Net gains on sale of mortgage loans held for sale	(18,244)	(11,935)
Originations of SBA loans	(26,684)	(24,586)
Proceeds from sales of SBA loans	20,539	11,418
Net gains on sale of SBA loans	(2,290)	(1,250)
Change attributable to other operating activities	7,683	7,585
Net cash used in operating activities	(17,264)	(14,742)
Cash flows from investing activities, net of effect of business combinations:
Net (increase) decrease in federal funds sold and interest-bearing deposits	(41,293)	176,107
Purchase of securities available for sale	(230,226)	(68,632)
Proceeds from maturities of securities available for sale	36,544	22,493
Proceeds from sales of securities available for sale	30,113	69,768
Decrease in restricted equity securities, net	1,825	6,832
Net increase in loans, excluding purchased non-covered and covered loans	(257,665)	(129,977)
Purchases of loan pools	(268,984)
Payments received on purchased non-covered loans	80,668	27,791
Payments received on covered loans	42,103	64,743
Purchases of premises and equipment	(6,595)	(2,223)
Proceeds from sales of premises and equipment	217	56
Proceeds from sales of other real estate owned	27,691	17,420
Payments received from FDIC under loss-share agreements	12,539	10,576
Net cash proceeds received from acquisitions	567,652	1,099
Net cash provided by (used in) investing activities	(5,411)	196,053
Cash flows from financing activities, net of effect of business combinations:
Net increase in deposits	27,829	20,780
Net decrease in securities sold under agreements to repurchase	(39,832)	(37,835)
Proceeds from other borrowings		57,463
Repayment of other borrowings	(39,881)	(174,005)
Redemption of preferred stock		(28,000)
Dividends paid-preferred stock		(286)
Dividends paid-common stock	(3,220)	(1,338)
Purchase of treasury shares	(731)	(432)
Issuance of common stock	114,889
Proceeds from exercise of stock options	998	373
Net cash provided by (used in) financing activities	60,052	(163,280)
Net increase in cash and due from banks	37,377	18,031
Cash and due from banks at beginning of period	78,036	62,955
Cash and due from banks at end of period	115,413	80,986
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest	7,220	6,740
Income taxes	2,659	5,583
Loans (excluding purchased non-covered and covered loans) transferred to other real estate owned	8,636	6,400
Purchased non-covered loans transferred to other real estate owned	2,039	1,425
Covered loans transferred to other real estate owned	6,534	9,083
Loans provided for the sales of other real estate owned	1,948	578
Change in unrealized gain on securities available for sale, net of tax	(2,895)	5,055
Change in unrealized loss on cash flow hedge (interest rate swap), net of tax	$ (131)	(638)
Issuance of common stock in acquisitions		$ 34,474

Basis of Presentation and Accou

Basis of Presentation and Accounting Policies	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Presentation and Accounting Policies	NOTE 1 – BASIS OF PRESENTATION AND ACCOUNTING POLICIES Ameris Bancorp (the “Company” or “Ameris”) is a financial holding company headquartered in Moultrie, Georgia. Ameris conducts substantially all of its operations through its wholly owned banking subsidiary, Ameris Bank (the “Bank”). At June 30, 2015 the Bank operated 103 branches in select markets in Georgia, Alabama, Florida and South Carolina. Our business model capitalizes on the efficiencies of a large financial services company while still providing the community with the personalized banking service expected by our customers. We manage our Bank through a balance of decentralized management responsibilities and efficient centralized operating systems, products and loan underwriting standards. The Company’s Board of Directors and senior managers establish corporate policy, strategy and administrative policies. Within our established guidelines and policies, the banker closest to the customer responds to the differing needs and demands of his or her unique market. The accompanying unaudited consolidated financial statements for Ameris have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and Regulation S-X. Accordingly, the financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statement presentation. The interim consolidated financial statements included herein are unaudited but reflect all adjustments (consisting of normal recurring accruals) which, in the opinion of management, are necessary for a fair presentation of the consolidated financial position and results of operations for the interim periods presented. All significant intercompany accounts and transactions have been eliminated in consolidation. The results of operations for the period ended June 30, 2015 are not necessarily indicative of the results to be expected for the full year. These financial statements should be read in conjunction with the financial statements and notes thereto and the report of our registered independent public accounting firm included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014. Newly Issued Accounting Pronouncements ASU 2015-03 – Interest – Imputation of Interest ASU 2015-02 – Consolidation (Topic 810)—Amendments to the Consolidation Analysis . ASU 2015-01 – Income Statement – Extraordinary and Unusual Items ASU 2014-11 – Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures Transfers and Servicing ASU 2014-09 – Revenue from Contracts with Customers

Business Combinations

Business Combinations	6 Months Ended
	Jun. 30, 2015
Business Combinations [Abstract]
Business Combinations	NOTE 2 – BUSINESS COMBINATIONS Branch Acquisition On June 12, 2015, the Company completed its acquisition of 18 branches from Bank of America, National Association located in Calhoun, Columbia, Dixie, Hamilton, Suwanee and Walton Counties, Florida and Ben Hill, Colquitt, Dougherty, Laurens, Liberty, Thomas, Tift and Ware Counties, Georgia. Under the terms of the Purchase and Assumption Agreement dated January 28, 2015, the Company paid a deposit premium of $20.0 million, equal to 3.00% of the average daily deposits for the 15 calendar day period immediately prior to the acquisition date. In addition, the Company acquired approximately $4.4 million in loans and $11.4 million in premises and equipment. The acquisition of the 18 branches was accounted for using the purchase method of accounting in accordance with FASB ASC 805, Business Combinations The following table presents the assets acquired and liabilities assumed as of June 12, 2015 and their initial fair value estimates. The fair value adjustments shown in the following table continue to be evaluated by management and may be subject to further adjustment: (Dollars in Thousands) As Recorded by Fair Value As Recorded Assets Cash and cash equivalents $ 630,220 $ — $ 630,220 Loans 4,363 — 4,363 Premises and equipment 10,348 1,060 (a) 11,408 Intangible assets — 7,651 (b) 7,651 Other assets 126 126 Total assets $ 645,057 $ 8,711 $ 653,768 Liabilities Deposits: Noninterest-bearing $ 149,854 $ — $ 149,854 Interest-bearing 495,110 (215 )(c) 494,895 Total deposits 644,964 (215 ) 644,749 Other liabilities 93 — 93 Total liabilities 645,057 (215 ) 644,842 Net identifiable assets acquired over (under) liabilities assumed — 8,926 8,926 Goodwill — 11,076 11,076 Net assets acquired over (under) liabilities assumed $ — $ 20,002 $ 20,002 Consideration: Cash paid as deposit premium $ 20,002 Fair value of total consideration transferred $ 20,002 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the premise and equipment as of the acquisition date. (b) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (c) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired deposits. Goodwill of $11.1 million, which is the excess of the merger consideration over the fair value of net assets acquired, was recorded in the branch acquisition and is the result of expected operational synergies and other factors. In the acquisition, the Company purchased $4.4 million of loans at fair value. Management did not identify any loans that were considered to be credit impaired and are accounted for under ASC Topic 310-30. Merchants & Southern Banks of Florida, Incorporated On May 22, 2015, the Company completed its acquisition of all shares of the outstanding common stock of Merchants & Southern Banks of Florida, Incorporated (“Merchants”), a bank holding company headquartered in Gainesville, Florida, for a total purchase price of $50,000,000. Upon consummation of the stock purchase, Merchants was merged with and into the Company, with Ameris as the surviving entity in the merger. At that time, Merchant’s wholly owned banking subsidiary, Merchants and Southern Bank, was also merged with and into the Bank. The acquisition grew the Company’s existing market presence, as Merchants and Southern Bank had a total of 13 banking locations in Alachua, Marion and Clay Counties, Florida. The acquisition of Merchants was accounted for using the purchase method of accounting in accordance with FASB ASC 805, Business Combinations The following table presents the assets acquired and liabilities of Merchants assumed as of May 22, 2015 and their initial fair value estimates. The fair value adjustments shown in the following table continue to be evaluated by management and may be subject to further adjustment: (Dollars in Thousands) As Recorded by Fair Value As Recorded Assets Cash and cash equivalents $ 7,527 $ — $ 7,527 Federal funds sold and interest-bearing balances 106,188 — 106,188 Investment securities 164,421 (553 )(a) 163,868 Other investments 872 — 872 Loans 199,955 (8,500 )(b) 191,455 Less allowance for loan losses (3,354 ) 3,354 (c) — Loans, net 196,601 (5,146 ) 191,455 Other real estate owned 4,082 (1,115 )(d) 2,967 Premises and equipment 14,614 (3,680 )(e) 10,934 Intangible assets — 4,577 (f) 4,577 Other assets 2,333 2,335 (g) 4,668 Total assets $ 496,638 $ (3,582 ) $ 493,056 Liabilities Deposits: Noninterest-bearing $ 121,708 $ — $ 121,708 Interest-bearing 286,112 — 286,112 Total deposits 407,820 — 407,820 Federal funds purchased and securities sold under agreements to repurchase 41,588 — 41,588 Other liabilities 2,151 81 (h) 2,232 Subordinated deferrable interest debentures 6,186 (2,680 )(i) 3,506 Total liabilities 457,745 (2,599 ) 455,146 Net identifiable assets acquired over (under) liabilities assumed 38,893 (983 ) 37,910 Goodwill — 12,090 12,090 Net assets acquired over (under) liabilities assumed $ 38,893 $ 11,107 $ 50,000 Consideration: Cash exchanged for shares $ 50,000 Fair value of total consideration transferred $ 50,000 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the available for sale portfolio as of the acquisition date. (b) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (c) Adjustment reflects the elimination of Merchant’s allowance for loan losses. (d) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (e) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired premises. (f) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (g) Adjustment reflects the deferred taxes on the difference in the carrying values of acquired assets and assumed liabilities for financial reporting purposes and their basis for federal income tax purposes. (h) Adjustment reflects the fair value adjustments based on the Company’s evaluation of interest rate swap liabilities. (i) Adjustment reflects the fair value adjustment to the subordinated deferrable interest debentures at the acquisition date. Goodwill of $12.1 million, which is the excess of the merger consideration over the fair value of net assets acquired, was recorded in the Merchants acquisition and is the result of expected operational synergies and other factors. This goodwill is not expected to be deductible for tax purposes. In the acquisition, the Company purchased $191.5 million of loans at fair value, net of $8.5 million, or 4.25%, estimated discount to the outstanding principal balance. Of the total loans acquired, management identified $17.4 million that were considered to be credit impaired and are accounted for under ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payment, management’s estimate of expected total cash payments and fair value of the loans as of acquisition date for purchased credit impaired loans. Contractually required principal and interest payment have been adjusted for estimated prepayments. Contractually required principal and interest $ 24,446 Non-accretable difference (3,814 ) Cash flows expected to be collected 20,632 Accretable yield (3,254 ) Total purchased credit-impaired loans acquired $ 17,378 The following table presents the acquired loan data for the Merchants acquisition. Fair Value of Gross Best Estimate (Dollars in Thousands) Acquired receivables subject to ASC 310-30 $ 17,378 $ 24,446 $ 3,814 Acquired receivables not subject to ASC 310-30 $ 174,077 $ 178,763 $ — Coastal Bankshares, Inc. On June 30, 2014, the Company completed its acquisition of The Coastal Bankshares, Inc. (“Coastal”), a bank holding company headquartered in Savannah, Georgia. Upon consummation of the acquisition, Coastal was merged with and into the Company, with Ameris as the surviving entity in the merger. At that time, Coastal’s wholly owned banking subsidiary, The Coastal Bank (“Coastal Bank”), was also merged with and into the Bank. The acquisition grew the Company’s existing market presence, as Coastal Bank had a total of six banking locations in Chatham, Liberty and Effingham Counties, Georgia. Coastal’s common shareholders received 0.4671 of a share of the Company’s common stock in exchange for each share of Coastal’s common stock. As a result, the Company issued 1,598,998 common shares at a fair value of $34.5 million and paid $2.8 million cash in exchange for outstanding warrants. The acquisition of Coastal was accounted for using the purchase method of accounting in accordance with FASB ASC 805, Business Combinations The following table presents the assets acquired and liabilities of Coastal assumed as of June 30, 2014 and their fair value estimates: (Dollars in Thousands) As Recorded by Initial Fair Value Subsequent Fair Value As Recorded Assets Cash and cash equivalents $ 3,895 $ — $ — $ 3,895 Federal funds sold and interest-bearing balances 15,923 — — 15,923 Investment securities 67,266 (500 )(a) — 66,766 Other investments 975 — — 975 Mortgage loans held for sale 7,288 — — 7,288 Loans 296,141 (16,700 )(b) — 279,441 Less allowance for loan losses (3,218 ) 3,218 (c) — — Loans, net 292,923 (13,482 ) — 279,441 Other real estate owned 14,992 (3,528 )(d) (3,407 )(g) 8,057 Premises and equipment 11,882 — — 11,882 Intangible assets 507 4,266 (e) (231 )(h) 4,542 Cash value of bank owned life insurance 7,812 — — 7,812 Other assets 14,898 — (601 )(i) 14,297 Total assets $ 438,361 $ (13,244 ) $ (4,239 ) $ 420,878 Liabilities Deposits: Noninterest-bearing $ 80,012 $ — $ — $ 80,012 Interest-bearing 289,012 — — 289,012 Total deposits 369,024 — — 369,024 Federal funds purchased and securities sold under agreements to repurchase 5,428 — — 5,428 Other borrowings 22,005 — — 22,005 Other liabilities 6,192 — — 6,192 Subordinated deferrable interest debentures 15,465 (6,413 )(f) — 9,052 Total liabilities 418,114 (6,413 ) — 411,701 Net identifiable assets acquired over (under) liabilities assumed 20,247 (6,831 ) (4,239 ) 9,177 Goodwill — 23,854 4,239 28,093 Net assets acquired over (under) liabilities assumed $ 20,247 $ 17,023 $ — $ 37,270 Consideration: Ameris Bancorp common shares issued 1,598,998 Purchase price per share of the Company’s common stock $ 21.56 Company common stock issued 34,474 Cash exchanged for shares 2,796 Fair value of total consideration transferred $ 37,270 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the available for sale portfolio as of the acquisition date. (b) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (c) Adjustment reflects the elimination of Coastal’s allowance for loan losses. (d) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (e) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (f) Adjustment reflects the fair value adjustment to the subordinated deferrable interest debentures at the acquisition date. (g) Adjustment reflects the additional fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (h) Adjustment reflects final recording of core deposit intangible on the acquired core deposit accounts. (i) Adjustment reflects the deferred taxes on the difference in the carrying values of acquired assets and assumed liabilities for financial reporting purposes and their basis for federal income tax purposes. Goodwill of $28.1 million, which is the excess of the merger consideration over the fair value of net assets acquired, was recorded in the Coastal acquisition and is the result of expected operational synergies and other factors. This goodwill is not expected to be deductible for tax purposes. In the acquisition, the Company purchased $279.4 million of loans at fair value, net of $16.7 million, or 5.64%, estimated discount to the outstanding principal balance. Of the total loans acquired, management identified $29.3 million that were considered to be credit impaired and are accounted for under ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payment, management’s estimate of expected total cash payments and fair value of the loans as of acquisition date for purchased credit impaired loans. Contractually required principal and interest payment have been adjusted for estimated prepayments. Contractually required principal and interest $ 38,194 Non-accretable difference (5,632 ) Cash flows expected to be collected 32,562 Accretable yield (3,282 ) Total purchased credit-impaired loans acquired $ 29,280 The results of operations of Merchants and Coastal subsequent to the respective acquisition dates are included in the Company’s consolidated statements of operations. The following unaudited pro forma information reflects the Company’s estimated consolidated results of operations as if the acquisitions had occurred on January 1, 2014, unadjusted for potential cost savings (in thousands). Three Months Ended Six Months Ended 2015 2014 2015 2014 Net interest income and noninterest income $ 63,259 $ 60,212 $ 123,308 $ 116,454 Net income (loss) $ (128 ) $ 6,963 $ 10,739 $ 17,163 Net income (loss) available to common stockholders $ (128 ) $ 6,963 $ 10,739 $ 16,877 Income (loss) per common share available to common stockholders – basic $ 0.00 $ 0.26 $ 0.34 $ 0.63 Income (loss) per common share available to common stockholders – diluted $ 0.00 $ 0.26 $ 0.34 $ 0.62 Average number of shares outstanding, basic 32,184 26,780 31,318 26,762 Average number of shares outstanding, diluted 32,520 27,232 31,653 27,214 A rollforward of purchased non-covered loans for the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014 is shown below: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 674,239 $ 448,753 $ 448,753 Charge-offs, net of recoveries (470 ) (84 ) — Additions due to acquisitions 195,818 279,441 279,441 Accretion 5,388 9,745 3,635 Transfers to purchased non-covered other real estate owned (2,039 ) (4,160 ) (1,425 ) Transfer from covered loans due to loss-share expiration 15,462 15,475 — Payments received (80,085 ) (74,931 ) (28,273 ) Ending balance $ 808,313 $ 674,239 $ 702,131 The following is a summary of changes in the accretable discounts of purchased non-covered loans during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 25,716 $ 26,189 $ 26,189 Additions due to acquisitions 4,686 7,799 7,799 Accretion (5,388 ) (9,745 ) (3,635 ) Accretable discounts removed due to charge-offs (1,685 ) — — Transfers between non-accretable and accretable discounts, net (1,007 ) 1,473 1,968 Ending balance $ 22,322 $ 25,716 $ 32,321

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Investment Securities	NOTE 3 – INVESTMENT SECURITIES The Company’s investment policy blends the Company’s liquidity needs and interest rate risk management with its desire to increase income and provide funds for expected growth in loans. The investment securities portfolio consists primarily of U.S. government sponsored mortgage-backed securities and agencies, state, county and municipal securities and corporate debt securities. The Company’s portfolio and investing philosophy concentrate activities in obligations where the credit risk is limited. For the small portion of the Company’s portfolio found to present credit risk, the Company has reviewed the investments and financial performance of the obligors and believes the credit risk to be acceptable. The amortized cost and estimated fair value of investment securities available for sale at June 30, 2015, December 31, 2014 and June 30, 2014 are presented below: Amortized Gross Gross Fair (Dollars in Thousands) June 30, 2015: U. S. government agencies $ 14,956 $ — $ (210 ) $ 14,746 State, county and municipal securities 165,070 3,305 (1,003 ) 167,372 Corporate debt securities 12,710 184 (58 ) 12,836 Mortgage-backed securities 665,274 4,948 (3,022 ) 667,200 Total securities $ 858,010 $ 8,437 $ (4,293 ) $ 862,154 December 31, 2014: U. S. government agencies $ 14,953 $ — $ (275 ) $ 14,678 State, county and municipal securities 137,873 3,935 (433 ) 141,375 Corporate debt securities 10,812 228 — 11,040 Mortgage-backed securities 369,581 6,534 (1,403 ) 374,712 Total securities $ 533,219 $ 10,697 $ (2,111 ) $ 541,805 June 30, 2014: U. S. government agencies $ 14,950 $ — $ (505 ) $ 14,445 State, county and municipal securities 143,507 3,136 (863 ) 145,780 Corporate debt securities 10,805 284 (131 ) 10,958 Mortgage-backed securities 361,194 5,435 (2,182 ) 364,447 Total securities $ 530,456 $ 8,855 $ (3,681 ) $ 535,630 The amortized cost and fair value of available-for-sale securities at June 30, 2015 by contractual maturity are summarized in the table below. Expected maturities for mortgage-backed securities may differ from contractual maturities because in certain cases borrowers can prepay obligations without prepayment penalties. Therefore, these securities are not included in the following maturity summary. Amortized Fair (Dollars in Thousands) Due in one year or less $ 7,960 $ 7,999 Due from one year to five years 47,037 48,246 Due from five to ten years 66,573 67,686 Due after ten years 71,166 71,023 Mortgage-backed securities 665,274 667,200 $ 858,010 $ 862,154 Securities with a carrying value of approximately $323.9 million serve as collateral to secure public deposits and for other purposes required or permitted by law at June 30, 2015, compared with $286.6 million and $228.3 million at December 31, 2014 and June 30, 2014, respectively. The following table details the gross unrealized losses and fair value of securities aggregated by category and duration of continuous unrealized loss position at June 30, 2015, December 31, 2014 and June 30, 2014. Less Than 12 Months 12 Months or More Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized (Dollars in Thousands) June 30, 2015: U. S. government agencies $ 9,818 $ (138 ) $ 4,928 $ (72 ) $ 14,746 $ (210 ) State, county and municipal securities 50,294 (680 ) 10,404 (323 ) 60,698 (1,003 ) Corporate debt securities 7,149 (58 ) — — 7,149 (58 ) Mortgage-backed securities 238,174 (2,046 ) 30,672 (976 ) 268,846 (3,022 ) Total temporarily impaired securities $ 305,435 $ (2,922 ) $ 46,004 $ (1,371 ) $ 351,439 $ (4,293 ) December 31, 2014: U. S. government agencies $ — $ — $ 14,678 $ (275 ) $ 14,678 $ (275 ) State, county and municipal securities 15,038 (70 ) 19,665 (363 ) 34,703 (433 ) Corporate debt securities — — — — — — Mortgage-backed securities 36,760 (221 ) 46,812 (1,182 ) 83,572 (1,403 ) Total temporarily impaired securities $ 51,798 $ (291 ) $ 81,155 $ (1,820 ) $ 132,953 $ (2,111 ) June 30, 2014: U. S. government agencies $ — $ — $ 14,445 $ (505 ) $ 14,445 $ (505 ) State, county and municipal securities 4,088 (35 ) 29,203 (828 ) 33,291 (863 ) Corporate debt securities — — 4,945 (131 ) 4,945 (131 ) Mortgage-backed securities 25,107 (65 ) 51,039 (2,117 ) 76,146 (2,182 ) Total temporarily impaired securities $ 29,195 $ (100 ) $ 99,632 $ (3,581 ) $ 128,827 $ (3,681 ) As of June 30, 2015, the Company’s security portfolio consisted of 443 securities, 163 of which were in an unrealized loss position. The majority of unrealized losses are related to the Company’s mortgage-backed and state, county and municipal securities, as discussed below. At June 30, 2015, the Company held 114 mortgage-backed securities that were in an unrealized loss position, all of which were issued by U.S. government-sponsored entities and agencies. Because the decline in fair value is attributable to changes in interest rates and illiquidity, and not credit quality, and because the Company does not have the intent to sell these mortgage-backed securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at June 30, 2015. At June 30, 2015, the Company held 40 state, county and municipal securities, three U.S. government-sponsored agency security, and six corporate security that were in an unrealized loss position. Because the decline in fair value is attributable to changes in interest rates, and not credit quality, and because the Company does not have the intent to sell these securities and it is likely that it will not be required to sell the securities before their anticipated recovery, the Company does not consider these securities to be other-than-temporarily impaired at June 30, 2015. During the first six months of 2015 and 2014, the Company received timely and current interest and principal payments on all of the securities classified as corporate debt securities, except for one security that began deferring interest during the fourth quarter of 2010. The Company’s investments in subordinated debt include investments in regional and super-regional banks on which the Company prepares regular analysis through review of financial information and credit ratings. Investments in preferred securities are also concentrated in the preferred obligations of regional and super-regional banks through non-pooled investment structures. The Company did not have investments in “pooled” trust preferred securities at June 30, 2015, December 31, 2014 or June 30, 2014. Management and the Company’s Asset and Liability Committee (the “ALCO Committee”) evaluate securities for other-than-temporary impairment at least on a quarterly basis, and more frequently when economic or market conditions warrant such evaluation. While the majority of the unrealized losses on debt securities relate to changes in interest rates, corporate debt securities have also been affected by reduced levels of liquidity and higher risk premiums. Occasionally, management engages independent third parties to evaluate the Company’s position in certain corporate debt securities to aid management and the ALCO Committee in its determination regarding the status of impairment. The Company believes that each investment poses minimal credit risk and further, that the Company does not intend to sell these investment securities at an unrealized loss position at June 30, 2015, and it is more likely than not that the Company will not be required to sell these securities prior to recovery or maturity. Therefore, at June 30, 2015, these investments are not considered impaired on an other-than-temporary basis. The following table is a summary of sales activities in the Company’s investment securities available for sale for the six months ended June 30, 2015, year ended December 31, 2014 and six months ended June 30, 2014: June 30, December 31, June 30, (Dollars in Thousands) Gross gains on sales of securities $ 41 $ 141 $ 8 Gross losses on sales of securities (19 ) (3 ) (2 ) Net realized gains on sales of securities available for sale $ 22 $ 138 $ 6 Sales proceeds $ 30,113 $ 94,051 $ 69,768

Loans

Loans	6 Months Ended
	Jun. 30, 2015
Receivables [Abstract]
Loans	NOTE 4 – LOANS The Company engages in a full complement of lending activities, including real estate-related loans, agriculture-related loans, commercial and financial loans and consumer installment loans within select markets in Georgia, Alabama, Florida and South Carolina. Ameris concentrates the majority of its lending activities in real estate loans. While the risk of loss in the Company’s portfolio is primarily tied to the credit quality of the various borrowers, risk of loss may increase due to factors beyond the Company’s control, such as local, regional and/or national economic downturns. General conditions in the real estate market may also impact the relative risk in the real estate portfolio. Commercial, financial and agricultural loans include both secured and unsecured loans for working capital, expansion, crop production and other business purposes. Short-term working capital loans are secured by non-real estate collateral such as accounts receivable, crops, inventory and equipment. The Company evaluates the financial strength, cash flow, management, credit history of the borrower and the quality of the collateral securing the loan. The Bank often requires personal guarantees and secondary sources of repayment on commercial, financial and agricultural loans. Real estate loans include construction and development loans, commercial and farmland loans and residential loans. Construction and development loans include loans for the development of residential neighborhoods, one-to-four family residential construction loans to builders and consumers, and commercial real estate construction loans, primarily for owner-occupied properties. The Company limits its construction lending risk through adherence to established underwriting procedures. Commercial real estate loans include loans secured by owner-occupied commercial buildings for office, storage, retail, farmland and warehouse space. They also include non-owner occupied commercial buildings such as leased retail and office space. Commercial real estate loans may be larger in size and may involve a greater degree of risk than one-to-four family residential mortgage loans. Payments on such loans are often dependent on successful operation or management of the properties. The Company’s residential loans represent permanent mortgage financing and are secured by residential properties located within the Bank’s market areas. Consumer installment loans and other loans include automobile loans, boat and recreational vehicle financing, and secured and unsecured personal loans. Consumer loans carry greater risks than other loans, as the collateral can consist of rapidly depreciating assets such as automobiles and equipment that may not provide an adequate source of repayment of the loan in the case of default. Loans are stated at unpaid balances, net of unearned income and deferred loan fees. Balances within the major loans receivable categories are presented in the following table, excluding purchased non-covered and covered loans: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 373,202 $ 319,654 $ 304,588 Real estate – construction and development 205,019 161,507 149,346 Real estate – commercial and farmland 1,010,195 907,524 850,000 Real estate – residential 537,201 456,106 422,731 Consumer installment 30,080 30,782 31,902 Other 15,903 14,308 11,492 $ 2,171,600 $ 1,889,881 $ 1,770,059 Purchased non-covered loans are defined as loans that were acquired in bank acquisitions that are not covered by a loss-sharing agreement with the FDIC. Purchased non-covered loans totaling $808.3 million, $674.2 million and $702.1 million at June 30, 2015, December 31, 2014 and June 30, 2014, respectively, are not included in the above schedule. Purchased non-covered loans are shown below according to major loan type as of the end of the periods shown: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 45,337 $ 38,041 $ 41,583 Real estate – construction and development 75,302 58,362 64,084 Real estate – commercial and farmland 404,588 306,706 311,748 Real estate – residential 276,798 266,342 278,451 Consumer installment 6,288 4,788 6,265 $ 808,313 $ 674,239 $ 702,131 Purchased loan pools are defined as groups of loans that were not acquired in bank acquisitions or FDIC-assisted transactions. As of June 30, 2015, purchased loan pools totaled $269.0 million and consisted of whole-loan, adjustable rate residential mortgages on properties outside the Company’s markets, with principal balances totaling $263.8 million and $5.2 million of purchase premium paid at acquisition. At June 30, 2015, all loans included in the purchased loan pools were performing current loans, all risk-rated grade 20. The Company did not have any purchased loan pools at December 31, 2014 or June 30, 2014. Covered loans are defined as loans that were acquired in FDIC-assisted transactions that are covered by a loss-sharing agreement with the FDIC. Covered loans totaling $209.6 million, $271.3 million and $331.3 million at June 30, 2015, December 31, 2014 and June 30, 2014, respectively, are not included in the above schedules. Covered loans are shown below according to loan type as of the end of the periods shown: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 17,666 $ 21,467 $ 25,209 Real estate – construction and development 15,002 23,447 31,600 Real estate – commercial and farmland 111,772 147,627 188,643 Real estate – residential 64,982 78,520 85,518 Consumer installment 176 218 280 $ 209,598 $ 271,279 $ 331,250 Nonaccrual and Past Due Loans A loan is placed on nonaccrual status when, in management’s judgment, the collection of the interest income appears doubtful. Interest receivable that has been accrued and is subsequently determined to have doubtful collectability is charged against interest income. Interest payments on nonaccrual loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case interest is recognized on a cash basis. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Past due loans are loans whose principal or interest is past due 90 days or more. In some cases, where borrowers are experiencing financial difficulties, loans may be restructured to provide terms significantly different from the original contractual terms. The following table presents an analysis of loans accounted for on a nonaccrual basis, excluding purchased non-covered and covered loans: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 4,067 $ 1,672 $ 1,596 Real estate – construction and development 1,594 3,774 3,452 Real estate – commercial and farmland 8,938 8,141 8,831 Real estate – residential 5,650 7,663 7,795 Consumer installment 491 478 437 $ 20,740 $ 21,728 $ 22,111 The following table presents an analysis of purchased non-covered loans accounted for on a nonaccrual basis: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 309 $ 175 $ 143 Real estate – construction and development 1,483 1,119 2,273 Real estate – commercial and farmland 9,634 10,242 6,647 Real estate – residential 5,930 6,644 6,658 Consumer installment 88 69 49 $ 17,444 $ 18,249 $ 15,770 The following table presents an analysis of covered loans accounted for on a nonaccrual basis: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 7,948 $ 8,541 $ 12,254 Real estate – construction and development 3,120 7,601 8,028 Real estate – commercial and farmland 13,997 12,584 17,027 Real estate – residential 3,712 6,595 8,702 Consumer installment 94 91 127 $ 28,871 $ 35,412 $ 46,138 The following table presents an aging analysis of loans, excluding purchased non-covered and covered past due loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 840 $ 888 $ 3,891 $ 5,619 $ 367,583 $ 373,202 $ — Real estate – construction & development 1,201 374 1,536 3,111 201,908 205,019 — Real estate – commercial & farmland 1,958 2,823 7,014 11,795 998,400 1,010,195 — Real estate – residential 5,135 1,949 4,727 11,811 525,390 537,201 — Consumer installment loans 293 77 315 685 29,395 30,080 — Other — — — — 15,903 15,903 — Total $ 9,427 $ 6,111 $ 17,483 $ 33,021 $ 2,138,579 $ 2,171,600 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 900 $ 233 $ 1,577 $ 2,710 $ 316,944 $ 319,654 $ — Real estate – construction & development 1,382 286 3,367 5,035 156,472 161,507 — Real estate – commercial & farmland 2,859 635 7,668 11,162 896,362 907,524 — Real estate – residential 3,953 2,334 6,755 13,042 443,064 456,106 — Consumer installment loans 634 158 366 1,158 29,624 30,782 1 Other — — — — 14,308 14,308 — Total $ 9,728 $ 3,646 $ 19,733 $ 33,107 $ 1,856,774 $ 1,889,881 $ 1 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 1,180 $ 966 $ 1,077 $ 3,223 $ 301,365 $ 304,588 $ — Real estate – construction & development 3,942 296 3,449 7,687 141,659 149,346 — Real estate – commercial & farmland 4,622 1,860 7,404 13,886 836,114 850,000 — Real estate – residential 5,806 3,829 7,197 16,832 405,899 422,731 — Consumer installment loans 345 176 310 831 31,071 31,902 — Other — — — — 11,492 11,492 — Total $ 15,895 $ 7,127 $ 19,437 $ 42,459 $ 1,727,600 $ 1,770,059 $ — The following table presents an analysis of purchased non-covered past due loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ — $ 1,101 $ 202 $ 1,303 $ 44,034 $ 45,337 $ — Real estate – construction & development 245 — 1,026 1,271 74,031 75,302 — Real estate – commercial & farmland 2,115 724 9,062 11,901 392,687 404,588 — Real estate – residential 3,848 1,400 5,369 10,617 266,181 276,798 — Consumer installment loans 6 — 84 90 6,198 6,288 — Total $ 6,214 $ 3,225 $ 15,743 $ 25,182 $ 783,131 $ 808,313 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 30, 2014: Commercial, financial & agricultural $ 461 $ 90 $ 175 $ 726 $ 37,315 $ 38,041 $ — Real estate – construction & development 790 1,735 1,117 3,642 54,720 58,362 — Real estate – commercial & farmland 2,107 1,194 9,529 12,830 293,876 306,706 — Real estate – residential 6,907 1,401 6,369 14,677 251,665 266,342 — Consumer installment loans 82 — 65 147 4,641 4,788 — Total $ 10,347 $ 4,420 $ 17,255 $ 32,022 $ 642,217 $ 674,239 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 137 $ 26 $ 143 $ 306 $ 41,277 $ 41,583 $ — Real estate – construction & development 712 168 2,165 3,045 61,039 64,084 — Real estate – commercial & farmland 1,263 1,605 6,647 9,515 302,233 311,748 — Real estate – residential 6,952 983 6,144 14,079 264,372 278,451 — Consumer installment loans 23 29 47 99 6,166 6,265 — Total $ 9,087 $ 2,811 $ 15,146 $ 27,044 $ 675,087 $ 702,131 $ — The following table presents an aging analysis of covered loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 237 $ 240 $ 1,670 $ 2,147 $ 15,519 $ 17,666 $ — Real estate – construction & development 292 31 3,045 3,368 11,634 15,002 143 Real estate – commercial & farmland 699 81 9,396 10,176 101,596 111,772 — Real estate – residential 2,690 927 2,122 5,739 59,243 64,982 — Consumer installment loans — — 50 50 126 176 — Total $ 3,918 $ 1,279 $ 16,283 $ 21,480 $ 188,118 $ 209,598 $ 143 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 451 $ 136 $ 1,878 $ 2,465 $ 19,002 $ 21,467 $ — Real estate – construction & development 238 226 6,703 7,167 16,280 23,447 — Real estate – commercial & farmland 4,371 1,486 7,711 13,568 134,059 147,627 714 Real estate – residential 3,464 962 5,656 10,082 68,438 78,520 — Consumer installment loans 10 — 91 101 117 218 — Total $ 8,534 $ 2,810 $ 22,039 $ 33,383 $ 237,896 $ 271,279 $ 714 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 16 $ 467 $ 6,909 $ 7,392 $ 17,817 $ 25,209 $ — Real estate – construction & development 551 459 7,708 8,718 22,882 31,600 — Real estate – commercial & farmland 6,399 139 10,443 16,981 171,662 188,643 — Real estate – residential 2,490 690 5,939 9,119 76,399 85,518 — Consumer installment loans — 49 56 105 175 280 — Total $ 9,456 $ 1,804 $ 31,055 $ 42,315 $ 288,935 $ 331,250 $ — Impaired Loans Loans are considered impaired when, based on current information and events, it is probable the Company will be unable to collect all amounts due in accordance with the original contractual terms of the loan agreements. When determining if the Company will be unable to collect all principal and interest payments due in accordance with the contractual terms of the loan agreement, the Company considers the borrower’s capacity to pay, which includes such factors as the borrower’s current financial statements, an analysis of global cash flow sufficient to pay all debt obligations and an evaluation of secondary sources of repayment, such as guarantor support and collateral value. Impaired loans include loans on nonaccrual status and troubled debt restructurings. The Company individually assesses for impairment all nonaccrual loans greater than $200,000 and rated substandard or worse and all troubled debt restructurings greater than $100,000. If a loan is deemed impaired, a specific valuation allowance is allocated, if necessary, so that the loan is reported net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value of collateral if repayment is expected solely from the collateral. Interest payments on impaired loans are typically applied to principal unless collectability of the principal amount is reasonably assured, in which case interest is recognized on a cash basis. The following is a summary of information pertaining to impaired loans, excluding purchased non-covered and covered loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 20,740 $ 21,728 $ 22,111 Troubled debt restructurings not included above 12,467 12,759 17,337 Total impaired loans $ 33,207 $ 34,487 $ 39,448 Quarter-to-date interest income recognized on impaired loans $ 192 $ 237 $ 1,133 Year-to-date interest income recognized on impaired loans $ 344 $ 1,991 $ 1,423 Quarter-to-date foregone interest income on impaired loans $ 311 $ 323 $ 375 Year-to-date foregone interest income on impaired loans $ 629 $ 1,491 $ 815 The following table presents an analysis of information pertaining to impaired loans, excluding purchased non-covered and covered loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 6,004 $ 442 $ 3,903 $ 4,345 $ 458 $ 2,819 $ 2,533 Real estate – construction & development 3,765 — 2,416 2,416 445 3,245 3,648 Real estate – commercial & farmland 18,117 5,960 9,595 15,555 1,243 15,378 15,125 Real estate – residential 11,743 1,153 9,199 10,352 1,825 11,555 12,006 Consumer installment loans 633 — 539 539 8 494 507 Total $ 40,262 $ 7,555 $ 25,652 $ 33,207 $ 3,979 $ 33,491 $ 33,819 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 3,387 $ 6 $ 1,956 $ 1,962 $ 395 $ 2,457 $ 3,021 Real estate – construction & development 8,325 448 4,005 4,453 771 4,703 5,368 Real estate – commercial & farmland 17,514 4,967 9,651 14,618 1,859 15,341 15,972 Real estate – residential 15,571 3,514 9,407 12,921 974 14,244 16,317 Consumer installment loans 618 — 533 533 9 527 519 Total $ 45,415 $ 8,935 $ 25,552 $ 34,487 $ 4,008 $ 37,272 $ 41,197 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 3,398 $ — $ 1,852 $ 1,852 $ 298 $ 2,786 $ 3,397 Real estate – construction & development 9,336 — 5,532 5,532 798 5,783 5,811 Real estate – commercial & farmland 19,215 — 16,421 16,421 1,629 16,851 16,394 Real estate – residential 18,313 — 15,131 15,131 884 16,563 17,698 Consumer installment loans 638 — 512 512 10 530 514 Total $ 50,900 $ — $ 39,448 $ 39,448 $ 3,619 $ 42,513 $ 43,814 The following is a summary of information pertaining to purchased non-covered impaired loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 17,444 $ 18,249 $ 15,770 Troubled debt restructurings not included above 6,792 1,212 — Total impaired loans $ 24,236 $ 19,461 $ 15,770 Quarter-to-date interest income recognized on impaired loans $ 143 $ 64 $ 41 Year-to-date interest income recognized on impaired loans $ 161 $ 132 $ 41 Quarter-to-date foregone interest income on impaired loans $ 451 $ 521 $ 426 Year-to-date foregone interest income on impaired loans $ 923 $ 1,759 $ 652 The following table presents an analysis of information pertaining to purchased non-covered impaired loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 1,476 $ 309 $ — $ 309 $ — $ 254 $ 227 Real estate – construction & development 9,656 1,857 — 1,857 — 1,485 1,469 Real estate – commercial & farmland 17,043 13,691 — 13,691 — 11,753 11,366 Real estate – residential 12,992 8,285 — 8,285 — 7,982 7,718 Consumer installment loans 111 94 — 94 — 61 64 Total $ 41,278 $ 24,236 $ — $ 24,236 $ — $ 21,535 $ 20,844 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 1,366 $ 175 $ — $ 175 $ — $ 277 $ 165 Real estate – construction & development 5,161 1,436 — 1,436 — 2,242 1,643 Real estate – commercial & farmland 15,007 10,588 — 10,588 — 11,148 7,484 Real estate – residential 12,283 7,191 — 7,191 — 8,447 7,084 Consumer installment loans 172 71 — 71 — 124 68 Total $ 33,989 $ 19,461 $ — $ 19,461 $ — $ 22,238 $ 16,444 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 550 $ 143 $ — $ 143 $ — $ 130 $ 90 Real estate – construction & development 4,649 2,273 — 2,273 — 1,702 1,243 Real estate – commercial & farmland 9,848 6,647 — 6,647 — 6,738 5,043 Real estate – residential 10,598 6,658 — 6,658 — 6,933 6,175 Consumer installment loans 65 49 — 49 — 41 31 Total $ 25,710 $ 15,770 $ — $ 15,770 $ — $ 15,544 $ 12,582 The following is a summary of information pertaining to covered impaired loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 28,871 $ 35,412 $ 46,138 Troubled debt restructurings not included above 17,500 22,619 9,221 Total impaired loans $ 46,371 $ 58,031 $ 55,359 Quarter-to-date interest income recognized on impaired loans $ 219 $ 443 $ 796 Year-to-date interest income recognized on impaired loans $ 431 $ 2,057 $ 1,193 Quarter-to-date foregone interest income on impaired loans $ 409 $ 571 $ 843 Year-to-date foregone interest income on impaired loans $ 947 $ 3,123 $ 1,892 The following table presents an analysis of information pertaining to covered impaired loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 14,260 $ 7,951 $ — $ 7,951 $ — $ 8,869 $ 8,773 Real estate – construction & development 29,895 5,953 — 5,953 — 7,819 8,757 Real estate – commercial & farmland 37,426 17,970 — 17,970 — 21,795 21,418 Real estate – residential 18,226 14,402 — 14,402 — 16,600 17,084 Consumer installment loans 125 95 — 95 — 99 97 Total $ 99,932 $ 46,371 $ — $ 46,371 $ — $ 55,179 $ 56,129 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 14,385 $ 8,582 $ — $ 8,582 $ — $ 8,525 $ 9,325 Real estate – construction & development 27,289 10,638 — 10,638 — 11,279 13,935 Real estate – commercial & farmland 31,309 20,663 — 20,663 — 21,890 28,057 Real estate – residential 22,860 18,054 — 18,054 — 18,242 20,776 Consumer installment loans 124 94 — 94 — 100 160 Total $ 95,967 $ 58,031 $ — $ 58,031 $ — $ 60,036 $ 72,253 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 14,694 $ 12,266 $ — $ 12,266 $ — $ 11,153 $ 9,858 Real estate – construction & development 12,921 11,048 — 11,048 — 14,541 15,706 Real estate – commercial & farmland 27,742 24,007 — 24,007 — 27,877 32,167 Real estate – residential 21,874 19,793 — 19,793 — 21,199 22,465 Consumer installment loans 161 127 — 127 — 130 200 Total $ 77,392 $ 67,241 $ — $ 67,241 $ — $ 74,899 $ 80,397 Credit Quality Indicators The Company uses a nine category risk grading system to assign a risk grade to each loan in the portfolio. Every loan is assigned a risk rating, with the exception of credit card receivables and overdraft protection loans, which are treated as pools for risk-rating purposes. Relationships greater than $1.0 million and a sample of relationships greater than $250,000 are reviewed annually by the Bank’s independent internal loan review department or an independent third party loan review firm. The following is a description of the general characteristics of the grades: Grade 10 – Prime Credit – Grade 15 – Good Credit – Satisfactory Credit Grade 20 – Satisfactory Credit Grade 23 – Performing, Under-Collateralized Credit – Grade 25 – Minimum Acceptable Credit – Satisfactory Credit Grade 30 – Other Asset Especially Mentioned – Grade 40 – Substandard – Grade 50 – Doubtful – Grade 60 – Loss – The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 173,795 $ 268 $ 150 $ 1,606 $ 6,114 $ — $ 181,933 15 25,447 3,402 127,090 85,812 1,319 — 243,070 20 96,169 47,207 592,636 334,999 17,833 15,903 1,104,747 23 635 8,071 11,984 6,655 55 — 27,400 25 69,304 140,119 248,227 83,207 3,807 — 544,664 30 2,566 2,510 11,088 8,612 244 — 25,020 40 5,286 3,442 19,020 16,310 708 — 44,766 50 — — — — — — — 60 — — — — — — — Total $ 373,202 $ 205,019 $ 1,010,195 $ 537,201 $ 30,080 $ 15,903 $ 2,171,600 The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 121,355 $ 268 $ 155 $ 226 $ 6,573 $ — $ 128,577 15 25,318 4,010 128,170 59,301 1,005 — 217,804 20 100,599 47,541 511,198 256,758 17,544 14,308 947,948 23 56 8,933 10,507 9,672 37 — 29,205 25 62,519 93,514 224,464 102,998 4,692 — 488,187 30 3,758 1,474 13,035 7,459 257 — 25,983 40 6,049 5,767 19,995 19,692 673 — 52,176 50 — — — — 1 — 1 60 — — — — — — — Total $ 319,654 $ 161,507 $ 907,524 $ 456,106 $ 30,782 $ 14,308 $ 1,889,881 The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 103,726 $ — $ 255 $ 505 $ 6,356 $ — $ 110,842 15 24,620 4,678 141,846 54,388 1,120 — 226,652 20 102,278 48,008 460,715 226,149 17,714 11,492 866,356 23 123 9,215 9,318 9,479 294 — 28,429 25 65,882 77,973 197,381 103,846 5,281 — 450,363 30 4,004 2,680 12,914 13,568 194 — 33,360 40 3,955 6,792 27,571 14,786 943 — 54,047 50 — — — 10 — — 10 60 — — — — — — — Total $ 304,588 $ 149,346 $ 850,000 $ 422,731 $ 31,902 $ 11,492 $ 1,770,059 The following table presents the purchased non-covered loan portfolio by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 9,091 $ — $ 80 $ — $ 952 $ — $ 10,123 15 1,377 866 8,710 41,641 626 — 53,220 20 12,545 16,979 190,219 139,792 2,769 — 362,304 23 — 240 3,792 6,505 — — 10,537 25 18,556 49,070 165,267 65,818 1,700 — 300,411 30 2,462 3,409 19,042 9,803 63 — 34,779 40 1,276 4,738 17,478 13,217 178 — 36,887 50 30 — — 22 — — 52 60 — — — — — — — Total $ 45,337 $ 75,302 $ 404,588 $ 276,798 $ 6,288 $ — $ 808,313 The following table presents the purchased non-covered loan portfolio by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 6,624 $ — $ — $ 290 $ 480 $ — $ 7,394 15 1,376 552 13,277 14,051 501 — 29,727 20 13,657 12,991 116,308 64,083 1,647 — 208,686 23 73 — 3,207 3,298 — — 6,578 25 13,753 36,230 144,293 164,959 1,920 — 361,155 30 1,618 4,365 12,279 7,444 41 — 25,747 40 910 4,254 17,342 12,184 199 — 34,889 50 30 — — 33 — — 63 60 — — — — — — — Total $ 38,041 $ 58,362 $ 306,706 $ 266,342 $ 4,788 $ — $ 674,239 The following table presents the purchased non-covered loan portfolio by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 3,494 $ — $ — $ 293 $ 557 $ — $ 4,344 15 4,728 245 14,191 15,839 537 — 35,540 20 11,567 12,905 94,598 64,937 2,683 — 186,690 23 — — — 165 — — 165 25 18,251 42,127 175,427 178,523 2,343 — 416,671 30 3,162 4,722 16,078 8,326 21 — 32,309 40 381 4,085 11,454 10,368 124 — 26,412 50 — — — — — — — 60 — — — — — — — Total $ 41,583 $ 64,084 $ 311,748 $ 278,451 $ 6,265 $ — $ 702,131 The following table presents the covered loan portfolio by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — — 488 125 — — 613 20 580 1,218 17,382 12,571 43 — 31,794 23 68 — 5,255 6,083 — — 11,406 25 4,089 8,142 60,682 30,870 37 — 103,820 30 4,923 2,409 4,165 5,730 — — 17,227 40 8,006 3,233 23,800 9,603 96 — 44,738 50 — — — — — — — 60 — — — — — — — Total $ 17,666 $ 15,002 $ 111,772 $ 64,982 $ 176 $ — $ 209,598 The following table presents the covered loan portfolio by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — 1 761 525 — — 1,287 20 917 3,184 23,167 14,089 77 — 41,434 23 164 537 11,404 6,642 — — 18,747 25 5,181 9,406 80,334 33,124 37 — 128,082 30 4,808 2,753 5,302 8,050 — — 20,913 40 10,397 7,566 26,659 16,090 104 — 60,816 50 — — — — — — — 60 — — — — — — — Total $ 21,467 $ 23,447 $ 147,627 $ 78,520 $ 218 $ — $ 271,279 The following table presents the covered loan portfolio by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — 2 822 629 — — 1,453 20 1,133 5,524 33,050 17,143 68 — 56,918 23 124 555 15,528 5,557 — — 21,764 25 6,569 9,251 94,504 36,507 40 — 146,871 30 4,398 4,802 9,959 8,326 2 — 27,487 40 12,985 11,466 34,780 17,356 170 — 76,757 50 — — — — — — — 60 — — — — — — — Total $ 25,209 $ 31,600 $ 188,643 $ 85,518 $ 280 $ — $ 331,250 Troubled Debt Restructurings The restructuring of a loan is considered a “troubled debt restructuring” if both (i) the borrower is experiencing financial difficulties and (ii) the Company has granted a concession. Concessions may include interest rate reductions to below market interest rates, principal forgiveness, restructuring amortization schedules and other actions intended to minimize potential losses. The Company has exhibited the greatest success for rehabilitation of the loan by a reduction in the rate alone (maintaining the amortization of the debt) or a combination of a rate reduction and the forbearance of previously past due interest or principal. This has most typically been evidenced in certain commercial real estate loans whereby a disruption in the borrower’s cash flow resulted in an extended past due status, of which the borrower was unable to catch up completely as the cash flow of the property ultimately stabilized at a level lower than its original level. A reduction in rate, coupled with a forbearance of unpaid principal and/or interest, allowed the net cash flows to service the debt under the modified terms. The Company’s policy requires a restructure request to be supported by a current, well-documented credit evaluation of the borrower’s financial condition and a collateral evaluation that is no older than six months from the date of the restructure. Key factors of that evaluation include the documentation of current, recurring cash flows, support provided by the guarantor(s) and the current valuation of the collateral. If the appraisal in the file is older than six months, an evaluation must be made as to the continued reasonableness of the valuation. For certain income-producing properties, current rent rolls and/or other income information can be utilized to support the appraisal valuation, when coupled with documented cap rates within our markets and a physical inspection of the collateral to validate the current condition. The Company’s policy states that in the event a loan has been identified as a troubled debt restructuring, it should be assigned a grade of substandard and placed on nonaccrual status until such time the borrower has demonstrated the ability to service the loan payments based on the restructured terms – generally defined as six months of satisfactory payment history. Missed payments under the original loan terms are not considered under the new structure; however, subsequent missed payments are considered non-performance and are not considered toward the six month required term of satisfactory payment history. The Company’s loan policy states that a nonaccrual loan may be returned to accrual status when (i) none of its principal and interest is due and unpaid, and the Company expects repayment of the remaining contractual principal and interest or (ii) it otherwise becomes well secured and in the process of collection. Restoration to accrual status on any given loan must be supported by a well-documented credit evaluation of the borrower’s financial condition and the prospects for full repayment, approved by the Company’s Chief Credit Officer. In the normal course of business, the Company renews loans with a modification of the interest rate or terms that are not deemed as troubled debt restructurings because the borrower is not experiencing financial difficulty. The Company modified loans in the first six months of 2015 and 2014 totaling $54.8 million and $8.4 million, respectively, under such parameters. As of June 30, 2015, December 31, 2014 and June 30, 2014, the Company had a balance of $14.0 million, $15.3 million and $21.1 million, respectively, in troubled debt restructurings, excluding purchased non-covered and covered loans. The Company has recorded $1.6 million, $2.2 million and $3.0 million in previous charge-offs on such loans at June 30, 2015, December 31, 2014 and June 30, 2014, respectively. The Company’s balance in the allowance for loan losses allocated to such troubled debt restructurings was $210,000, $231,000 and $398,000 at June 30, 2015, December 31, 2014 and June 30, 2014, respectively. At June 30, 2015, the Company did not have any commitments to lend additional funds to debtors whose terms have been modified in troubled restructurings. During the six months ending June 30, 2015 and 2014, the Company modified loans as troubled debt restructurings, excluding purchased non-covered and covered loans, with principal balances of $782,000 and $1.7 million, respectively, and these modifications did not have

Assets Acquired in FDIC-Assiste

Assets Acquired in FDIC-Assisted Acquisitions	6 Months Ended
	Jun. 30, 2015
Banking and Thrift [Abstract]
Assets Acquired in FDIC-Assisted Acquisitions	NOTE 5 – ASSETS ACQUIRED IN FDIC-ASSISTED ACQUISITIONS From October 2009 through July 2012, the Company participated in ten FDIC-assisted acquisitions whereby the Company purchased certain failed institutions out of the FDIC’s receivership. These institutions include the following: Bank Acquired Location: Branches: Date Acquired American United Bank (“AUB”) Lawrenceville, Ga. 1 October 23, 2009 United Security Bank (“USB”) Sparta, Ga. 2 November 6, 2009 Satilla Community Bank (“SCB”) St. Marys, Ga. 1 May 14, 2010 First Bank of Jacksonville (“FBJ”) Jacksonville, Fl. 2 October 22, 2010 Tifton Banking Company (“TBC”) Tifton, Ga. 1 November 12, 2010 Darby Bank & Trust (“DBT”) Vidalia, Ga. 7 November 12, 2010 High Trust Bank (“HTB”) Stockbridge, Ga. 2 July 15, 2011 One Georgia Bank (“OGB”) Midtown Atlanta, Ga. 1 July 15, 2011 Central Bank of Georgia (“CBG”) Ellaville, Ga. 5 February 24, 2012 Montgomery Bank & Trust (“MBT”) Ailey, Ga. 2 July 6, 2012 The determination of the initial fair values of loans at the acquisition date and the initial fair values of the related FDIC indemnification assets involves a high degree of judgment and complexity. The carrying values of the acquired loans and the FDIC indemnification assets reflect management’s best estimate of the fair value of each of these assets as of the date of acquisition. However, the amount that the Company realizes on these assets could differ materially from the carrying values reflected in the financial statements included in this report, based upon the timing and amount of collections on the acquired loans in future periods. Because of the loss-sharing agreements with the FDIC on these assets, the Company does not expect to incur any significant losses. The Company’s FDIC-assisted acquisition of MBT did not include a loss-sharing agreement. To the extent the actual values realized for the acquired loans are different from the estimates, the indemnification assets will generally be affected in an offsetting manner due to the loss-sharing support from the FDIC. FASB ASC 310 – 30, Loans and Debt Securities Acquired with Deteriorated Credit Quality At June 30, 2015, the Company’s FDIC loss-sharing receivable totaled $15.0 million, which is comprised of $13.4 million in indemnification asset (for reimbursements associated with anticipated losses in future quarters) and $8.9 million in current charge-offs and expenses already incurred but not yet submitted for reimbursement, less the accrued clawback liability of $7.3 million. The following table summarizes components of all covered assets at June 30, 2015, December 31, 2014 and June 30, 2014 and their origin: Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of June 30, 2015: AUB $ — $ — $ — $ — $ — $ — $ — $ 187 USB 3,883 18 3,865 165 — 165 4,030 (1,232 ) SCB 5,318 209 5,109 95 — 95 5,204 1,300 FBJ 17,708 1,286 16,422 815 121 694 17,116 1,227 DBT 46,269 3,667 42,602 5,216 700 4,516 47,118 2,126 TBC 19,609 515 19,094 1,480 116 1,364 20,458 521 HTB 47,176 4,127 43,049 3,085 955 2,130 45,179 4,806 OGB 34,218 2,192 32,026 442 — 442 32,468 1,856 CBG 52,259 4,828 47,431 3,559 339 3,220 50,651 4,166 Total $ 226,440 $ 16,842 $ 209,598 $ 14,857 $ 2,231 $ 12,626 $ 222,224 $ 14,957 Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of December 31, 2014: AUB $ — $ — $ — $ — $ — $ — $ — $ 188 USB 4,350 150 4,200 165 — 165 4,365 (1,197 ) SCB 26,686 602 26,084 2,849 389 2,460 28,544 1,828 FBJ 21,243 1,825 19,418 632 — 632 20,050 1,885 DBT 64,338 6,437 57,901 6,655 514 6,141 64,042 6,860 TBC 23,487 1,117 22,370 2,388 367 2,021 24,391 3,287 HTB 52,699 5,120 47,579 3,670 1,283 2,387 49,966 6,459 OGB 42,971 3,785 39,186 2,244 39 2,205 41,391 3,906 CBG 60,950 6,409 54,541 4,805 909 3,896 58,437 8,135 Total $ 296,724 $ 25,445 $ 271,279 $ 23,408 $ 3,501 $ 19,907 $ 291,186 $ 31,351 Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of June 30, 2014: AUB $ 9,106 $ 133 $ 8,973 $ 1,690 $ — $ 1,690 $ 10,663 $ 1,676 USB 14,030 805 13,225 2,927 62 2,865 16,090 920 SCB 30,545 954 29,591 3,332 308 3,024 32,615 3,073 FBJ 23,264 2,696 20,568 1,734 135 1,599 22,167 2,752 DBT 81,700 8,774 72,926 12,766 913 11,853 84,779 10,119 TBC 28,363 1,853 26,510 4,493 758 3,735 30,245 3,543 HTB 59,267 6,535 52,732 4,130 1,349 2,781 55,513 9,000 OGB 49,501 4,937 44,564 7,964 2,984 4,980 49,544 7,268 CBG 71,959 9,798 62,161 7,432 1,533 5,899 68,060 10,829 Total $ 367,735 $ 36,485 $ 331,250 $ 46,468 $ 8,042 $ 38,426 $ 369,676 $ 49,180 A rollforward of acquired covered loans for the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014 is shown below: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 271,279 $ 390,237 $ 390,237 Charge-offs (7,065 ) (9,255 ) (5,694 ) Accretion 6,251 22,188 13,330 Transfer to covered other real estate owned (6,534 ) (13,650 ) (9,083 ) Transfer to purchased, non-covered loans due to loss-share expiration (15,462 ) (15,475 ) — Payments received (38,871 ) (102,996 ) (57,540 ) Other — 230 — Ending balance $ 209,598 $ 271,279 $ 331,250 The following is a summary of changes in the accretable discounts of acquired loans during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 15,578 $ 25,493 $ 25,493 Accretion (6,251 ) (22,188 ) (15,432 ) Transfer to purchased, non-covered loans due to loss-share expiration (84 ) — — Transfers between non-accretable and accretable discounts, net 2,817 12,273 5,850 Ending balance $ 12,060 $ 15,578 $ 15,911 The shared-loss agreements are subject to the servicing procedures as specified in the agreement with the FDIC. The expected reimbursements under the shared-loss agreements were recorded as an indemnification asset at their estimated fair values on the acquisition dates. As of June 30, 2015, December 31, 2014 and June 30, 2014, the Company has recorded a clawback liability of $7.3 million, $6.2 million and $5.2 million, respectively, which represents the obligation of the Company to reimburse the FDIC should actual losses be less than certain thresholds established in each loss-share agreement. Changes in the FDIC shared-loss receivable for the six months ended June 30, 2015, for the year ended December 31, 2014 and for the six months ended June 30, 2014 are as follows: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 31,351 $ 65,441 $ 65,441 Payments received from FDIC (12,539 ) (22,494 ) (10,576 ) Accretion (amortization) (5,393 ) (18,449 ) (11,390 ) Changes in clawback liability (1,057 ) (1,222 ) (228 ) Increase in receivable due to: Charge-offs on covered loans 1,955 3,372 2,372 Write downs of covered other real estate 2,206 4,771 2,090 Reimbursable expenses on covered assets 1,866 1,078 2,248 Other activity, net (3,432 ) (1,146 ) (777 ) Ending balance $ 14,957 $ 31,351 $ 49,180

Other Real Estate Owned

Other Real Estate Owned	6 Months Ended
	Jun. 30, 2015
Banking and Thrift [Abstract]
Other Real Estate Owned	NOTE 6. OTHER REAL ESTATE OWNED The following is a summary of the activity in other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 33,160 $ 33,351 $ 33,351 Loans transferred to other real estate owned 8,636 11,972 6,400 Net gains (losses) on sale and write-downs (9,449 ) (4,585 ) (1,523 ) Sales proceeds (9,780 ) (7,578 ) (2,855 ) Ending balance $ 22,567 $ 33,160 $ 35,373 The following is a summary of the activity in purchased, non-covered other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 15,585 $ 4,276 $ 4,276 Loans transferred to other real estate owned 2,039 4,160 1,425 Acquired in acquisitions 2,189 8,864 11,464 Transfer from covered other real estate owned due to loss-share expiration 75 1,226 — Net gains (losses) on sale and write-downs 182 828 61 Sales proceeds (6,958 ) (3,769 ) (628 ) Ending balance $ 13,112 $ 15,585 $ 16,598 The following is a summary of the activity in covered other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 19,907 $ 45,893 $ 45,893 Loans transferred to other real estate owned 6,534 13,650 9,083 Transfer from covered other real estate owned due to loss-share expiration (75 ) (1,226 ) — Net gains (losses) on sale and write-downs (2,758 ) (5,965 ) (2,613 ) Sales proceeds (10,982 ) (32,445 ) (13,937 ) Ending balance $ 12,626 $ 19,907 $ 38,426

Securities Sold under Agreement

Securities Sold under Agreements to Repurchase	6 Months Ended
	Jun. 30, 2015
Brokers and Dealers [Abstract]
Securities Sold under Agreements to Repurchase	NOTE 7 – SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE The Company classifies the sales of securities under agreements to repurchase as short-term borrowings. The amounts received under these agreements are reflected as a liability in the Company’s consolidated balance sheets and the securities underlying these agreements are included in investment securities in the Company’s consolidated balance sheets. At June 30, 2015, December 31, 2014 and June 30, 2014, all securities sold under agreements to repurchase mature on a daily basis. The market value of the securities fluctuate on a daily basis due to market conditions. The Company monitors the market value of the securities underlying these agreements on a daily basis and is required to transfer additional securities if the market value of the securities fall below the repurchase agreement price. The Company maintains an unpledged securities portfolio that it believes is sufficient to protect against a decline in the market value of the securities sold under agreements to repurchase. The following is a summary of the Company’s securities sold under agreements to repurchase at June 30, 2015, December 31, 2014 and June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Securities sold under agreements to repurchase $ 75,066 $ 73,310 $ 51,109 Total $ 75,066 $ 73,310 $ 51,109 At June 30, 2015, December 31, 2014 and June 30, 2014, the investment securities underlying these agreements were all mortgage-backed securities.

Other Borrowings

Other Borrowings	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Other Borrowings	NOTE 8 – OTHER BORROWINGS The Company has, from time to time, utilized certain borrowing arrangements with various financial institutions to fund growth in earning assets or provide additional liquidity when appropriate spreads can be realized. At June 30, 2015, December 31, 2014 and June 30, 2014, there were $39.0 million, $78.9 million and $100.3 million, respectively, outstanding borrowings with the Company’s correspondent banks. Other borrowings consist of the following: (Dollars in Thousands) June 30, December 31, June 30, Daily Rate Credit from Federal Home Loan Bank with a fixed interest rate of 0.36% $ — $ 35,000 $ 40,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.20%, due July 2, 2014 — — 5,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.21%, due July 16, 2014 — — 5,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.19%, due July 23, 2014 — — 3,000 Advances under revolving credit agreement with a regional bank with interest at 90-day LIBOR plus 3.50% (3.78% at June 30, 2015 and 3.73% at December 31, 2014) due in August 2016, secured by subsidiary bank stock 24,000 24,000 — Advances under revolving credit agreement with a regional bank with interest at 90-day LIBOR plus 4.00% (4.23% at June 30, 2014) due in August 2016, secured by subsidiary bank stock — — 22,500 Advance from correspondent bank with a fixed interest rate of 4.50%, due November 27, 2017, secured by subsidiary bank loan receivable — 4,881 4,936 Subordinated debt issued by Prosperity Bank due June 2016 with an interest rate of 90-day LIBOR plus 1.60% (1.84% at June 30, 2014) — — 5,000 Subordinated debt issued by The Prosperity Banking Company due September 2016 with an interest rate of 90-day LIBOR plus 1.75% (2.04% at June 30, 2015, 1.99% at December 31, 2014 and 1.98% at June 30, 2014) 15,000 15,000 14,857 Total $ 39,000 $ 78,881 $ 100,293 The advances from the Federal Home Loan Bank (“FHLB”) are collateralized by a blanket lien on all first mortgage loans and other specific loans in addition to FHLB stock. At June 30, 2015, $297.5 million was available for borrowing on lines with the FHLB. As of June 30, 2015, the Company maintained credit arrangements with various financial institutions to purchase federal funds up to $65 million. The Company also participates in the Federal Reserve discount window borrowings. At June 30, 2015, the Company had $633.1 million of loans pledged at the Federal Reserve discount window and had $441.6 million available for borrowing.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 9 – COMMITMENTS AND CONTINGENCIES Loan Commitments The Company is a party to financial instruments with off-balance-sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. They involve, to varying degrees, elements of credit risk and interest rate risk in excess of the amount recognized in the balance sheets. 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 it does for on-balance-sheet instruments. A summary of the Company’s commitments is as follows: (Dollars in Thousands) June 30, December 31, June 30, Commitments to extend credit $ 431,678 $ 293,517 $ 243,163 Unused lines of credit $ 51,834 $ 49,567 $ 41,908 Financial standby letters of credit $ 10,535 $ 9,683 $ 8,392 Mortgage interest rate lock commitments $ 91,977 $ 38,868 $ 70,854 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the customer. Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loans to customers. Collateral is required in instances which the Company deems necessary. Contingencies Certain conditions may exist as of the date the financial statements are issued, which may result in a loss to the Company but which will only be resolved when one or more future events occur or fail to occur. The Company’s management and its legal counsel assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. In assessing loss contingencies related to legal proceedings that are pending against the Company or unasserted claims that may result in such proceedings, the Company’s legal counsel evaluates the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein. If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability would be accrued in the Company’s financial statements. If the assessment indicates that a potentially material loss contingency is not probable, but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, would be disclosed. Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case the nature of the guarantee would be disclosed. A former borrower of the Company has filed a claim related to a loan previously made by the Company asserting lender liability. The case was tried without a jury and an order was issued by the court against the Company awarding the borrower approximately $2.9 million. The order is currently on appeal to the South Carolina Court of Appeals and the Company is asserting it had no fiduciary responsibility to the borrower. As of June 30, 2015, the Company believes that it has valid bases in law and fact to overturn on appeal the verdict. As a result, the Company believes that the likelihood that the amount of the judgment will be affirmed is not probable, and, accordingly, that the amount of any loss cannot be reasonably estimated at this time. Because the Company believes that this potential loss is not probable or estimable, it has not recorded any reserves or contingencies related to this legal matter. In the event that the Company’s assumptions used to evaluate this matter as neither probable nor estimable change in future periods, it may be required to record a liability for an adverse outcome.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Accumulated Other Comprehensive Income	NOTE 10 – ACCUMULATED OTHER COMPREHENSIVE INCOME Accumulated other comprehensive income for the Company consists of changes in net unrealized gains and losses on investment securities available for sale and interest rate swap derivatives. The following tables present a summary of the accumulated other comprehensive income balances, net of tax, as of June 30, 2015 and 2014: (Dollars in Thousands) Unrealized Gain (Loss) Unrealized Gain (Loss) Accumulated Other Balance, January 1, 2015 $ 508 $ 5,590 $ 6,098 Reclassification for gains included in net income — (14 ) (14 ) Current year changes (131 ) (2,881 ) (3,012 ) Balance, June 30, 2015 $ 377 $ 2,695 $ 3,072 (Dollars in Thousands) Unrealized Gain (Loss) Unrealized Gain (Loss) Accumulated Other Balance, January 1, 2014 $ 1,397 $ (1,691 ) $ (294 ) Reclassification for gains included in net income — (4 ) (4 ) Current year changes (638 ) 5,059 4,421 Balance, June 30, 2014 $ 759 $ 3,364 $ 4,123

Weighted Average Shares Outstan

Weighted Average Shares Outstanding	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Weighted Average Shares Outstanding	NOTE 11 – WEIGHTED AVERAGE SHARES OUTSTANDING Earnings per share have been computed based on the following weighted average number of common shares outstanding: For the Three Months For the Six Months 2015 2014 2015 2014 (Share Data in Thousands) (Share Data in Thousands) Basic shares outstanding 32,184 25,181 31,318 25,163 Plus: Dilutive effect of ISOs 116 120 115 118 Plus: Dilutive effect of Restricted grants 220 271 220 271 Diluted shares outstanding 32,520 25,572 31,653 25,552 For the three-month periods ended June 30, 2015 and 2014, the Company has excluded 5,000 and 119,000, respectively, potential common shares with strike prices that would cause them to be anti-dilutive. For the six-month periods ended June 30, 2015 and 2014, the Company has excluded 5,000 and 120,000, respectively, potential common shares with strike prices that would cause them to be anti-dilutive.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	NOTE 12 – FAIR VALUE OF FINANCIAL INSTRUMENTS The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. However, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair value is based on discounted cash flows or other valuation techniques. These techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument. The accounting standard for disclosures about the fair value of financial instruments excludes certain financial instruments and all nonfinancial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company. The Company has elected to record mortgage loans held-for-sale at fair value in order to eliminate the complexities and inherent difficulties of achieving hedge accounting and to better align reported results with the underlying economic changes in value of the loans and related hedge instruments. This election impacts the timing and recognition of origination fees and costs, as well as servicing value, which are now recognized in earnings at the time of origination. Interest income on mortgage loans held-for-sale is recorded on an accrual basis in the consolidated statement of earnings and comprehensive income under the heading “Interest income – interest and fees on loans”. The servicing value is included in the fair value of the interest rate lock commitments (“IRLCs”) with borrowers. The mark to market adjustments related to loans held-for-sale and the associated economic hedges are captured in mortgage banking activities. Net gains of $3.2 million and $2.3 million resulting from fair value changes of these mortgage loans were recorded in income during the six months ended June 30, 2015 and 2014, respectively. The amount does not reflect changes in fair values of related derivative instruments used to hedge exposure to market-related risks associated with these mortgage loans. The change in fair value of both mortgage loans held for sale and the related derivative instruments are recorded in “Mortgage banking activity” in the Consolidated Statements of Earnings and Comprehensive Income. The Company’s valuation of mortgage loans held for sale incorporates an assumption for credit risk; however, given the short-term period that the Company holds these loans, valuation adjustments attributable to instrument-specific credit risk is nominal. The following table summarizes the difference between the fair value and the principal balance for mortgage loans held for sale measured at fair value as of June 30, 2015, December 31, 2014 and June 30, 2014: June 30, December 31, June 30, (Dollars in Thousands) Aggregate Fair Value of Mortgage Loans held for sale $ 108,829 $ 94,759 $ 81,491 Aggregate Unpaid Principal Balance $ 105,184 $ 90,418 $ 78,395 Past due loans of 90 days or more $ — $ — $ — Nonaccrual loans $ — $ — $ — The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Securities available for sale and derivatives are recorded at fair value on a recurring basis. From time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as impaired loans and OREO. Additionally, the Company is required to disclose, but not record, the fair value of other financial instruments. Fair Value Hierarchy The Company groups assets and liabilities at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are: Level 1— Level 2— Level 3— The following methods and assumptions were used by the Company in estimating the fair value of its financial instruments: Cash and Due From Banks, Federal Funds Sold and Interest-Bearing Accounts: Investment Securities Available for Sale: Other Investments: Mortgage Loans Held for Sale: Loans: Accounting by Creditors for Impairment of a Loan Other Real Estate Owned: Covered Other Real Estate Owned: FDIC Loss-Share Receivable: Accrued Interest Receivable/Payable: Deposits: Securities Sold under Agreements to Repurchase and Other Borrowings: Subordinated Deferrable Interest Debentures: Off-Balance-Sheet Instruments: Derivatives: The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting any applicable credit enhancements such as collateral postings, thresholds, mutual puts and guarantees. Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself or the counterparty. However, as of June 30, 2015, December 31, 2014 and June 30, 2014, the Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustment is not significant to the overall valuation of its derivatives. As a result, the Company has determined that its derivative valuation in its entirety is classified in Level 2 of the fair value hierarchy. The following table presents the fair value measurements of assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall as of June 30, 2015, December 31, 2014 and June 30, 2014 (dollars in thousands): Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,746 $ — $ 14,746 $ — State, county and municipal securities 167,372 — 167,372 — Corporate debt securities 12,836 — 10,336 2,500 Mortgage-backed securities 667,200 — 667,200 — Mortgage loans held for sale 108,829 — 108,829 — Mortgage banking derivative instruments 3,775 — 3,775 — Total recurring assets at fair value $ 974,758 $ — $ 972,258 $ 2,500 Derivative financial instruments $ 1,306 $ — $ 1,306 $ — Total recurring liabilities at fair value $ 1,306 $ — $ 1,306 $ — Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,678 $ — $ 14,678 $ — State, county and municipal securities 141,375 — 141,375 — Corporate debt securities 11,040 — 8,540 2,500 Mortgage-backed securities 374,712 8,248 366,464 — Mortgage loans held for sale 94,759 — 94,759 — Mortgage banking derivative instruments 1,757 — 1,757 — Total recurring assets at fair value $ 638,321 $ 8,248 $ 627,573 $ 2,500 Derivative financial instruments $ 1,315 $ — $ 1,315 $ — Mortgage banking derivative instruments 249 — 249 — Total recurring liabilities at fair value $ 1,564 $ — $ 1,564 $ — Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,445 $ — $ 14,445 $ — State, county and municipal securities 145,780 — 145,780 — Corporate debt securities 10,958 — 8,958 2,000 Mortgage-backed securities 364,447 — 364,447 — Mortgage loans held for sale 81,491 — 81,491 — Mortgage banking derivative instruments 2,625 — 2,625 — Total recurring assets at fair value $ 619,746 $ — $ 617,746 $ 2,000 Derivative financial instruments $ 1,142 $ — $ 1,142 $ — Total recurring liabilities at fair value $ 1,142 $ — $ 1,142 $ — The following table presents the fair value measurements of assets measured at fair value on a non-recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy as of June 30, 2015, December 31, 2014 and June 30, 2014 (dollars in thousands): Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 29,228 $ — $ — $ 29,228 Other real estate owned 11,069 — — 11,069 Purchased, non-covered other real estate owned 13,112 — — 13,112 Covered other real estate owned 12,626 — — 12,626 Total nonrecurring assets at fair value $ 54,966 $ — $ — $ 54,966 Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 30,479 $ — $ — $ 30,479 Purchased, non-covered other real estate owned 15,585 — — 15,585 Covered other real estate owned 19,907 — — 19,907 Total nonrecurring assets at fair value $ 65,971 $ — $ — $ 65,971 Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 35,829 $ — $ — $ 35,829 Purchased, non-covered other real estate owned 16,598 — — 16,598 Covered other real estate owned 38,426 — — 38,426 Total nonrecurring assets at fair value $ 90,853 $ — $ — $ 90,853 The inputs used to determine estimated fair value of impaired loans and covered loans include market conditions, loan terms, underlying collateral characteristics and discount rates. The inputs used to determine fair value of other real estate owned and covered other real estate owned include market conditions, estimated marketing period or holding period, underlying collateral characteristics and discount rates. For the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014, there was not a change in the methods and significant assumptions used to estimate fair value. The following table shows significant unobservable inputs used in the fair value measurement of Level 3 assets and liabilities: Fair Valuation Technique Unobservable Inputs Range of Weighted As of June 30, 2015 Nonrecurring: Impaired loans $ 29,228 Third party appraisals and discounted cash flows Collateral discounts and discount rates 4% - 75% 24 % Other real estate owned $ 11,069 Third party appraisals, Sales contracts, Broker price opinions Collateral discounts and estimated costs to sell 10% 10 % Purchased non-covered other real estate owned $ 13,112 Third party appraisals Collateral discounts and estimated costs to sell 10% - 85% 19 % Covered other real estate owned $ 12,626 Third party appraisals Collateral discounts and estimated costs to sell 10% - 70% 12 % Recurring: Investment securities available for sale $ 2,500 Discounted par values Credit quality of underlying issuer 0% 0 % As of December 31, 2014 Nonrecurring: Impaired loans $ 30,479 Third party appraisals and discounted cash flows Collateral discounts and discount rates 0% - 50% 20 % Purchased non-covered real estate owned $ 15,585 Third party appraisals Collateral discounts and estimated costs to sell 10% - 96% 20 % Covered real estate owned $ 19,907 Third party appraisals Collateral discounts and estimated costs to sell 10% - 90% 11 % Recurring: Investment securities available for sale $ 2,500 Discounted par values Credit quality of underlying issuer 0% 0 % As of June 30, 2014 Nonrecurring: Impaired loans $ 35,289 Third party appraisals and discounted cash flows Collateral discounts and discount rates 4% - 90% 27 % Purchased non-covered real estate owned $ 16,598 Third party appraisals Collateral discounts and estimated costs to sell 21% - 70% 23 % Covered real estate owned $ 38,426 Third party appraisals Collateral discounts and estimated costs to sell 10% - 90% 11 % Recurring: Investment securities available for sale $ 2,000 Discounted par values Credit quality of underlying issuer 0% 0 % The carrying amount and estimated fair value of the Company’s financial instruments, not shown elsewhere in these financial statements, were as follows: Fair Value Measurements at June 30, 2015 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 115,413 $ 115,413 $ — $ — $ 115,413 Federal funds sold and interest-bearing accounts 239,804 239,804 — — 239,804 Loans, net 3,407,609 — — 3,428,008 3,428,008 FDIC loss-share receivable 14,957 — — 5,295 5,295 Accrued interest receivable 17,648 17,648 — — 17,648 Financial liabilities: Deposits $ 4,511,547 $ — $ 4,513,218 $ — $ 4,513,218 Securities sold under agreements to repurchase 75,066 75,066 — — 75,066 Other borrowings 39,000 — 39,000 — 39,000 Accrued interest payable 1,239 1,239 — — 1,239 Subordinated deferrable interest debentures 69,325 — 50,924 — 50,924 Fair Value Measurements at December 31, 2014 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 78,026 $ 78,026 $ — $ — $ 78,026 Federal funds sold and interest-bearing accounts 92,323 92,323 — — 92,323 Loans, net 2,783,763 — — 2,785,627 2,785,627 FDIC loss-share receivable 31,351 — — 18,764 18,764 Accrued interest receivable 17,023 17,023 — — 17,023 Financial liabilities: Deposits $ 3,431,149 $ — $ 3,432,059 $ — $ 3,432,059 Securities sold under agreements to repurchase 73,310 73,310 — — 73,310 Other borrowings 78,881 — 78,881 — 78,881 Accrued interest payable 1,382 1,382 — — 1,382 Subordinated deferrable interest debentures 65,325 — 46,564 — 46,564 Fair Value Measurements at June 30, 2014 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 80,986 $ 80,986 $ — $ — $ 80,986 Federal funds sold and interest-bearing accounts 44,800 44,800 — — 44,800 Loans, net 2,745,897 — — 2,754,953 2,754,953 FDIC loss-share receivable 49,180 — — 36,182 36,182 Accrued interest receivable 15,711 15,711 — — 15,711 Financial liabilities: Deposits $ 3,389,035 $ — $ 3,389,880 $ — $ 3,389,880 Securities sold under agreements to repurchase 51,109 51,109 — — 51,109 Other borrowings 100,293 — 100,293 — 100,293 Accrued interest payable 1,423 1,423 — — 1,423 Subordinated deferrable interest debentures 64,842 — 45,864 — 45,864

Segment Reporting

Segment Reporting	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Segment Reporting	NOTE 13 – SEGMENT REPORTING The following tables present selected financial information with respect to the Company’s reportable business segments for the three months ended June 30, 2015 and 2014: Three Months Ended June 30, 2015 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 36,806 $ 1,979 $ 1,179 $ 724 $ 40,688 Provision for loan losses 2,456 200 — — 2,656 Noninterest income 9,262 9,095 383 1,886 20,626 Noninterest expense Salaries and employee benefits 15,675 5,592 99 1,099 22,465 Equipment and occupancy expenses 4,376 396 1 36 4,809 Data processing and telecommunications expenses 3,913 279 20 2 4,214 Other expenses 24,048 1,150 19 159 25,376 Total noninterest expense 48,012 7,417 139 1,296 56,864 Income (loss) before income tax expense (benefit) (4,400 ) 3,457 1,423 1,314 1,794 Income tax expense (benefit) (1,682 ) 1,210 498 460 486 Net income (loss) (2,718 ) 2,247 925 854 1,308 Less preferred stock dividends — — — — — Net income (loss) available to common shareholders $ (2,718 ) $ 2,247 $ 925 $ 854 $ 1,308 Total assets $ 4,823,335 $ 235,067 $ 82,913 $ 64,419 $ 5,205,734 Intangible assets $ 106,556 $ — $ — $ — $ 106,556 Three Months Ended June 30, 2014 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 33,345 $ 972 $ 367 $ 580 $ 35,264 Provision for loan losses 1,365 — — — 1,365 Noninterest income 7,449 6,836 166 1,368 15,819 Noninterest expense Salaries and employee benefits 12,509 3,881 56 496 16,942 Equipment and occupancy expenses 3,752 300 — 19 4,071 Data processing and telecommunications expenses 3,590 329 14 7 3,940 Other expenses 10,753 1,233 79 300 12,365 Total noninterest expense 30,604 5,743 149 822 37,318 Income before income tax expense 8,825 2,065 384 1,126 12,400 Income tax expense 3,019 723 134 394 4,270 Net income 5,806 1,342 250 732 8,130 Less preferred stock dividends — — — — — Net income available to common shareholders $ 5,806 $ 1,342 $ 250 $ 732 $ 8,130 Total assets $ 3,744,089 $ 131,275 $ 44,010 $ 53,761 $ 3,973,135 Intangible assets $ 68,715 $ — $ — $ — $ 68,715 The following tables present selected financial information with respect to the Company’s reportable business segments for the six months ended June 30, 2015 and 2014: Six Months Ended June 30, 2015 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 72,645 $ 3,524 $ 2,014 $ 1,337 $ 79,520 Provision for loan losses 3,383 342 — — 3,725 Noninterest income 18,042 16,705 656 2,798 38,201 Noninterest expense Salaries and employee benefits 31,037 10,119 226 1,715 43,097 Equipment and occupancy expenses 8,520 776 3 64 9,363 Data processing and telecommunications expenses 7,924 491 53 6 8,474 Other expenses 34,404 2,082 55 216 36,757 Total noninterest expense 81,885 13,468 337 2,001 97,691 Income (loss) before income tax expense (benefit) 5,419 6,419 2,333 2,134 16,305 Income tax expense (benefit) 1,423 2,246 817 747 5,233 Net income (loss) 3,996 4,173 1,516 1,387 11,072 Less preferred stock dividends — — — — — Net income (loss) available to common shareholders $ 3,996 $ 4,173 $ 1,516 $ 1,387 $ 11,072 Six Months Ended June 30, 2014 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 66,273 $ 1,886 $ 553 $ 1,036 $ 69,748 Provision for loan losses 3,091 — — — 3,091 Noninterest income 14,810 11,916 250 1,597 28,573 Noninterest expense Salaries and employee benefits 26,086 7,403 102 745 34,336 Equipment and occupancy expenses 7,501 601 1 32 8,135 Data processing and telecommunications expenses 6,916 443 22 13 7,394 Other expenses 18,133 2,008 119 432 20,692 Total noninterest expense 58,636 10,455 244 1,222 70,557 Income before income tax expense 19,356 3,347 559 1,411 24,673 Income tax expense 6,332 1,171 196 494 8,193 Net income 13,024 2,176 363 917 16,480 Less preferred stock dividends 286 — — — 286 Net income available to common shareholders $ 12,738 $ 2,176 $ 363 $ 917 $ 16,194

Basis of Presentation and Acc22

Basis of Presentation and Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2015
Accounting Policies [Abstract]
Newly Issued Accounting Pronouncements	Newly Issued Accounting Pronouncements ASU 2015-03 – Interest – Imputation of Interest ASU 2015-02 – Consolidation (Topic 810)—Amendments to the Consolidation Analysis . ASU 2015-01 – Income Statement – Extraordinary and Unusual Items ASU 2014-11 – Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures Transfers and Servicing ASU 2014-09 – Revenue from Contracts with Customers

Business Combinations (Tables)

Business Combinations (Tables)	6 Months Ended
	Jun. 30, 2015
Rollforward of Acquired Non-Covered Loans	A rollforward of purchased non-covered loans for the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014 is shown below: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 674,239 $ 448,753 $ 448,753 Charge-offs, net of recoveries (470 ) (84 ) — Additions due to acquisitions 195,818 279,441 279,441 Accretion 5,388 9,745 3,635 Transfers to purchased non-covered other real estate owned (2,039 ) (4,160 ) (1,425 ) Transfer from covered loans due to loss-share expiration 15,462 15,475 — Payments received (80,085 ) (74,931 ) (28,273 ) Ending balance $ 808,313 $ 674,239 $ 702,131
Schedule of Changes in Accretable Discounts Related Acquired Loans	The following is a summary of changes in the accretable discounts of acquired loans during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 15,578 $ 25,493 $ 25,493 Accretion (6,251 ) (22,188 ) (15,432 ) Transfer to purchased, non-covered loans due to loss-share expiration (84 ) — — Transfers between non-accretable and accretable discounts, net 2,817 12,273 5,850 Ending balance $ 12,060 $ 15,578 $ 15,911
Bank of America [Member]
Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table presents the assets acquired and liabilities assumed as of June 12, 2015 and their initial fair value estimates. The fair value adjustments shown in the following table continue to be evaluated by management and may be subject to further adjustment: (Dollars in Thousands) As Recorded by Fair Value As Recorded Assets Cash and cash equivalents $ 630,220 $ — $ 630,220 Loans 4,363 — 4,363 Premises and equipment 10,348 1,060 (a) 11,408 Intangible assets — 7,651 (b) 7,651 Other assets 126 126 Total assets $ 645,057 $ 8,711 $ 653,768 Liabilities Deposits: Noninterest-bearing $ 149,854 $ — $ 149,854 Interest-bearing 495,110 (215 )(c) 494,895 Total deposits 644,964 (215 ) 644,749 Other liabilities 93 — 93 Total liabilities 645,057 (215 ) 644,842 Net identifiable assets acquired over (under) liabilities assumed — 8,926 8,926 Goodwill — 11,076 11,076 Net assets acquired over (under) liabilities assumed $ — $ 20,002 $ 20,002 Consideration: Cash paid as deposit premium $ 20,002 Fair value of total consideration transferred $ 20,002 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the premise and equipment as of the acquisition date. (b) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (c) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired deposits.
Merchants and Southern Banks of Florida [Member]
Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table presents the assets acquired and liabilities of Merchants assumed as of May 22, 2015 and their initial fair value estimates. The fair value adjustments shown in the following table continue to be evaluated by management and may be subject to further adjustment: (Dollars in Thousands) As Recorded by Fair Value As Recorded Assets Cash and cash equivalents $ 7,527 $ — $ 7,527 Federal funds sold and interest-bearing balances 106,188 — 106,188 Investment securities 164,421 (553 )(a) 163,868 Other investments 872 — 872 Loans 199,955 (8,500 )(b) 191,455 Less allowance for loan losses (3,354 ) 3,354 (c) — Loans, net 196,601 (5,146 ) 191,455 Other real estate owned 4,082 (1,115 )(d) 2,967 Premises and equipment 14,614 (3,680 )(e) 10,934 Intangible assets — 4,577 (f) 4,577 Other assets 2,333 2,335 (g) 4,668 Total assets $ 496,638 $ (3,582 ) $ 493,056 Liabilities Deposits: Noninterest-bearing $ 121,708 $ — $ 121,708 Interest-bearing 286,112 — 286,112 Total deposits 407,820 — 407,820 Federal funds purchased and securities sold under agreements to repurchase 41,588 — 41,588 Other liabilities 2,151 81 (h) 2,232 Subordinated deferrable interest debentures 6,186 (2,680 )(i) 3,506 Total liabilities 457,745 (2,599 ) 455,146 Net identifiable assets acquired over (under) liabilities assumed 38,893 (983 ) 37,910 Goodwill — 12,090 12,090 Net assets acquired over (under) liabilities assumed $ 38,893 $ 11,107 $ 50,000 Consideration: Cash exchanged for shares $ 50,000 Fair value of total consideration transferred $ 50,000 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the available for sale portfolio as of the acquisition date. (b) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (c) Adjustment reflects the elimination of Merchant’s allowance for loan losses. (d) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (e) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired premises. (f) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (g) Adjustment reflects the deferred taxes on the difference in the carrying values of acquired assets and assumed liabilities for financial reporting purposes and their basis for federal income tax purposes. (h) Adjustment reflects the fair value adjustments based on the Company’s evaluation of interest rate swap liabilities. (i) Adjustment reflects the fair value adjustment to the subordinated deferrable interest debentures at the acquisition date.
Summary of Contractually Required Principal and Interest Cash Payment of the Loans As of Acquisition Date for Purchased Credit Impaired Loans	The table below summarizes the total contractually required principal and interest cash payment, management’s estimate of expected total cash payments and fair value of the loans as of acquisition date for purchased credit impaired loans. Contractually required principal and interest payment have been adjusted for estimated prepayments. Contractually required principal and interest $ 38,194 Non-accretable difference (5,632 ) Cash flows expected to be collected 32,562 Accretable yield (3,282 ) Total purchased credit-impaired loans acquired $ 29,280
Schedule of Acquired Loans	The following table presents the acquired loan data for the Merchants acquisition. Fair Value of Gross Best Estimate (Dollars in Thousands) Acquired receivables subject to ASC 310-30 $ 17,378 $ 24,446 $ 3,814 Acquired receivables not subject to ASC 310-30 $ 174,077 $ 178,763 $ —
Coastal Bankshares, Inc. [Member]
Estimated Fair Value of Assets Acquired and Liabilities Assumed	The following table presents the assets acquired and liabilities of Coastal assumed as of June 30, 2014 and their fair value estimates: (Dollars in Thousands) As Recorded by Initial Fair Value Subsequent Fair Value As Recorded Assets Cash and cash equivalents $ 3,895 $ — $ — $ 3,895 Federal funds sold and interest-bearing balances 15,923 — — 15,923 Investment securities 67,266 (500 )(a) — 66,766 Other investments 975 — — 975 Mortgage loans held for sale 7,288 — — 7,288 Loans 296,141 (16,700 )(b) — 279,441 Less allowance for loan losses (3,218 ) 3,218 (c) — — Loans, net 292,923 (13,482 ) — 279,441 Other real estate owned 14,992 (3,528 )(d) (3,407 )(g) 8,057 Premises and equipment 11,882 — — 11,882 Intangible assets 507 4,266 (e) (231 )(h) 4,542 Cash value of bank owned life insurance 7,812 — — 7,812 Other assets 14,898 — (601 )(i) 14,297 Total assets $ 438,361 $ (13,244 ) $ (4,239 ) $ 420,878 Liabilities Deposits: Noninterest-bearing $ 80,012 $ — $ — $ 80,012 Interest-bearing 289,012 — — 289,012 Total deposits 369,024 — — 369,024 Federal funds purchased and securities sold under agreements to repurchase 5,428 — — 5,428 Other borrowings 22,005 — — 22,005 Other liabilities 6,192 — — 6,192 Subordinated deferrable interest debentures 15,465 (6,413 )(f) — 9,052 Total liabilities 418,114 (6,413 ) — 411,701 Net identifiable assets acquired over (under) liabilities assumed 20,247 (6,831 ) (4,239 ) 9,177 Goodwill — 23,854 4,239 28,093 Net assets acquired over (under) liabilities assumed $ 20,247 $ 17,023 $ — $ 37,270 Consideration: Ameris Bancorp common shares issued 1,598,998 Purchase price per share of the Company’s common stock $ 21.56 Company common stock issued 34,474 Cash exchanged for shares 2,796 Fair value of total consideration transferred $ 37,270 Explanation of fair value adjustments (a) Adjustment reflects the fair value adjustments of the available for sale portfolio as of the acquisition date. (b) Adjustment reflects the fair value adjustments based on the Company’s evaluation of the acquired loan portfolio. (c) Adjustment reflects the elimination of Coastal’s allowance for loan losses. (d) Adjustment reflects the fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (e) Adjustment reflects the recording of core deposit intangible on the acquired core deposit accounts. (f) Adjustment reflects the fair value adjustment to the subordinated deferrable interest debentures at the acquisition date. (g) Adjustment reflects the additional fair value adjustment based on the Company’s evaluation of the acquired OREO portfolio. (h) Adjustment reflects final recording of core deposit intangible on the acquired core deposit accounts. (i) Adjustment reflects the deferred taxes on the difference in the carrying values of acquired assets and assumed liabilities for financial reporting purposes and their basis for federal income tax purposes.
Summary of Contractually Required Principal and Interest Cash Payment of the Loans As of Acquisition Date for Purchased Credit Impaired Loans	The table below summarizes the total contractually required principal and interest cash payment, management’s estimate of expected total cash payments and fair value of the loans as of acquisition date for purchased credit impaired loans. Contractually required principal and interest payment have been adjusted for estimated prepayments. Contractually required principal and interest $ 38,194 Non-accretable difference (5,632 ) Cash flows expected to be collected 32,562 Accretable yield (3,282 ) Total purchased credit-impaired loans acquired $ 29,280
Pro Forma Information of Acquisitions	The following unaudited pro forma information reflects the Company’s estimated consolidated results of operations as if the acquisitions had occurred on January 1, 2014, unadjusted for potential cost savings (in thousands). Three Months Ended Six Months Ended 2015 2014 2015 2014 Net interest income and noninterest income $ 63,259 $ 60,212 $ 123,308 $ 116,454 Net income (loss) $ (128 ) $ 6,963 $ 10,739 $ 17,163 Net income (loss) available to common stockholders $ (128 ) $ 6,963 $ 10,739 $ 16,877 Income (loss) per common share available to common stockholders – basic $ 0.00 $ 0.26 $ 0.34 $ 0.63 Income (loss) per common share available to common stockholders – diluted $ 0.00 $ 0.26 $ 0.34 $ 0.62 Average number of shares outstanding, basic 32,184 26,780 31,318 26,762 Average number of shares outstanding, diluted 32,520 27,232 31,653 27,214
Discount Accretion [Member]
Schedule of Changes in Accretable Discounts Related Acquired Loans	The following is a summary of changes in the accretable discounts of purchased non-covered loans during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 25,716 $ 26,189 $ 26,189 Additions due to acquisitions 4,686 7,799 7,799 Accretion (5,388 ) (9,745 ) (3,635 ) Accretable discounts removed due to charge-offs (1,685 ) — — Transfers between non-accretable and accretable discounts, net (1,007 ) 1,473 1,968 Ending balance $ 22,322 $ 25,716 $ 32,321

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale	The amortized cost and estimated fair value of investment securities available for sale at June 30, 2015, December 31, 2014 and June 30, 2014 are presented below: Amortized Gross Gross Fair (Dollars in Thousands) June 30, 2015: U. S. government agencies $ 14,956 $ — $ (210 ) $ 14,746 State, county and municipal securities 165,070 3,305 (1,003 ) 167,372 Corporate debt securities 12,710 184 (58 ) 12,836 Mortgage-backed securities 665,274 4,948 (3,022 ) 667,200 Total securities $ 858,010 $ 8,437 $ (4,293 ) $ 862,154 December 31, 2014: U. S. government agencies $ 14,953 $ — $ (275 ) $ 14,678 State, county and municipal securities 137,873 3,935 (433 ) 141,375 Corporate debt securities 10,812 228 — 11,040 Mortgage-backed securities 369,581 6,534 (1,403 ) 374,712 Total securities $ 533,219 $ 10,697 $ (2,111 ) $ 541,805 June 30, 2014: U. S. government agencies $ 14,950 $ — $ (505 ) $ 14,445 State, county and municipal securities 143,507 3,136 (863 ) 145,780 Corporate debt securities 10,805 284 (131 ) 10,958 Mortgage-backed securities 361,194 5,435 (2,182 ) 364,447 Total securities $ 530,456 $ 8,855 $ (3,681 ) $ 535,630
Amortized Cost and Fair Value of Available for Sale Securities by Contractual Maturity	The amortized cost and fair value of available-for-sale securities at June 30, 2015 by contractual maturity are summarized in the table below. Expected maturities for mortgage-backed securities may differ from contractual maturities because in certain cases borrowers can prepay obligations without prepayment penalties. Therefore, these securities are not included in the following maturity summary. Amortized Fair (Dollars in Thousands) Due in one year or less $ 7,960 $ 7,999 Due from one year to five years 47,037 48,246 Due from five to ten years 66,573 67,686 Due after ten years 71,166 71,023 Mortgage-backed securities 665,274 667,200 $ 858,010 $ 862,154
Schedule of Gross Unrealized Losses and Fair Value of Securities	The following table details the gross unrealized losses and fair value of securities aggregated by category and duration of continuous unrealized loss position at June 30, 2015, December 31, 2014 and June 30, 2014. Less Than 12 Months 12 Months or More Total Description of Securities Fair Unrealized Fair Unrealized Fair Unrealized (Dollars in Thousands) June 30, 2015: U. S. government agencies $ 9,818 $ (138 ) $ 4,928 $ (72 ) $ 14,746 $ (210 ) State, county and municipal securities 50,294 (680 ) 10,404 (323 ) 60,698 (1,003 ) Corporate debt securities 7,149 (58 ) — — 7,149 (58 ) Mortgage-backed securities 238,174 (2,046 ) 30,672 (976 ) 268,846 (3,022 ) Total temporarily impaired securities $ 305,435 $ (2,922 ) $ 46,004 $ (1,371 ) $ 351,439 $ (4,293 ) December 31, 2014: U. S. government agencies $ — $ — $ 14,678 $ (275 ) $ 14,678 $ (275 ) State, county and municipal securities 15,038 (70 ) 19,665 (363 ) 34,703 (433 ) Corporate debt securities — — — — — — Mortgage-backed securities 36,760 (221 ) 46,812 (1,182 ) 83,572 (1,403 ) Total temporarily impaired securities $ 51,798 $ (291 ) $ 81,155 $ (1,820 ) $ 132,953 $ (2,111 ) June 30, 2014: U. S. government agencies $ — $ — $ 14,445 $ (505 ) $ 14,445 $ (505 ) State, county and municipal securities 4,088 (35 ) 29,203 (828 ) 33,291 (863 ) Corporate debt securities — — 4,945 (131 ) 4,945 (131 ) Mortgage-backed securities 25,107 (65 ) 51,039 (2,117 ) 76,146 (2,182 ) Total temporarily impaired securities $ 29,195 $ (100 ) $ 99,632 $ (3,581 ) $ 128,827 $ (3,681 )
Summary of Sales Activities in the Company's Investment Securities Available for Sale	The following table is a summary of sales activities in the Company’s investment securities available for sale for the six months ended June 30, 2015, year ended December 31, 2014 and six months ended June 30, 2014: June 30, December 31, June 30, (Dollars in Thousands) Gross gains on sales of securities $ 41 $ 141 $ 8 Gross losses on sales of securities (19 ) (3 ) (2 ) Net realized gains on sales of securities available for sale $ 22 $ 138 $ 6 Sales proceeds $ 30,113 $ 94,051 $ 69,768

Loans (Tables)

Loans (Tables)	6 Months Ended
	Jun. 30, 2015
Schedule of Accounts Notes Loans and Financial Receivables	Balances within the major loans receivable categories are presented in the following table, excluding purchased non-covered and covered loans: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 373,202 $ 319,654 $ 304,588 Real estate – construction and development 205,019 161,507 149,346 Real estate – commercial and farmland 1,010,195 907,524 850,000 Real estate – residential 537,201 456,106 422,731 Consumer installment 30,080 30,782 31,902 Other 15,903 14,308 11,492 $ 2,171,600 $ 1,889,881 $ 1,770,059
Summary of Covered Loans According to Loan Type	Covered loans are shown below according to loan type as of the end of the periods shown: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 17,666 $ 21,467 $ 25,209 Real estate – construction and development 15,002 23,447 31,600 Real estate – commercial and farmland 111,772 147,627 188,643 Real estate – residential 64,982 78,520 85,518 Consumer installment 176 218 280 $ 209,598 $ 271,279 $ 331,250
Schedule of Allowances for Loan Losses by Portfolio Segment	The following table details activity in the allowance for loan losses by portfolio segment for the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014. Allocation of a portion of the allowance to one category of loans does not preclude its availability to absorb losses in other categories. Commercial, Real estate – Real estate – Real Consumer Purchased Covered Total (Dollars in Thousands) Three months ended June 30, 2015: Balance, March 31, 2015 $ 1,399 $ 5,311 $ 8,770 $ 5,008 $ 1,364 $ — $ — $ 21,852 Provision for loan losses 322 40 756 234 448 121 735 2,656 Loans charged off (410 ) (263 ) (1,162 ) (464 ) (153 ) (240 ) (850 ) (3,542 ) Recoveries of loans previously charged off 115 277 17 27 22 119 115 692 Balance, June 30, 2015 $ 1,426 $ 5,365 $ 8,381 $ 4,805 $ 1,681 $ — $ — $ 21,658 Six months ended June 30, 2015: Balance, January 1, 2015 $ 2,004 $ 5,030 $ 8,823 $ 4,129 $ 1,171 $ — $ — $ 21,157 Provision for loan losses (176 ) 387 700 1,324 665 (311 ) 1,136 3,725 Loans charged off (802 ) (360 ) (1,174 ) (732 ) (239 ) (470 ) (1,413 ) (5,190 ) Recoveries of loans previously charged off 400 308 32 84 84 781 277 1,966 Balance, June 30, 2015 $ 1,426 $ 5,365 $ 8,381 $ 4,805 $ 1,681 $ — $ — $ 21,658 Period-end amount allocated to: Loans individually evaluated for impairment $ 450 $ 414 $ 1,242 $ 1,786 $ — $ — $ — $ 3,892 Loans collectively evaluated for impairment 976 4,951 7,139 3,019 1,681 — — 17,766 Ending balance $ 1,426 $ 5,365 $ 8,381 $ 4,805 $ 1,681 $ — $ — $ 21,658 Loans: Individually evaluated for impairment $ 3,351 $ 1,437 $ 15,028 $ 8,069 $ — $ — $ — $ 27,885 Collectively evaluated for impairment 369,851 203,582 995,167 529,132 45,983 698,068 91,188 2,932,971 Acquired with deteriorated credit quality — — — — — 110,245 118,410 228,655 Loan pools collectively evaluated for impairment — — — — — 268,984 — 268,984 Ending balance $ 373,202 $ 205,019 $ 1,010,195 $ 537,201 $ 45,983 $ 1,077,297 $ 209,598 $ 3,458,495 Commercial, Real estate – Real estate – Real Consumer Purchased non-covered Covered Total (Dollars in Thousands) Three months ended December 31, 2014: Balance, September 30, 2014 $ 2,581 $ 5,294 $ 8,632 $ 5,407 $ 298 $ — $ — $ 22,212 Provision for loan losses (200 ) (239 ) 1,133 (981 ) 937 80 158 888 Loans charged off (468 ) (74 ) (1,033 ) (368 ) (128 ) (80 ) (337 ) (2,488 ) Recoveries of loans previously charged off 91 49 91 71 64 — 179 545 Balance, December 31, 2014 $ 2,004 $ 5,030 $ 8,823 $ 4,129 $ 1,171 $ — $ — $ 21,157 Twelve months ended December 31, 2014: Balance, January 1, 2014 $ 1,823 $ 5,538 $ 8,393 $ 6,034 $ 589 $ — $ — $ 22,377 Provision for loan losses 1,427 (265 ) 3,444 (452 ) 567 84 843 5,648 Loans charged off (1,567 ) (592 ) (3,288 ) (1,707 ) (471 ) (84 ) (1,851 ) (9,560 ) Recoveries of loans previously charged off 321 349 274 254 486 — 1,008 2,692 Balance, December 31, 2014 $ 2,004 $ 5,030 $ 8,823 $ 4,129 $ 1,171 $ — $ — $ 21,157 Period-end amount allocated to: Loans individually evaluated for impairment $ 375 $ 743 $ 1,861 $ 911 $ — $ — $ — $ 3,890 Loans collectively evaluated for impairment 1,629 4,287 6,962 3,218 1,171 — — 17,267 Ending balance $ 2,004 $ 5,030 $ 8,823 $ 4,129 $ 1,171 $ — $ — $ 21,157 Loans: Individually evaluated for impairment $ 490 $ 3,709 $ 14,546 $ 8,904 $ — $ — $ — $ 27,649 Collectively evaluated for impairment 319,164 157,798 892,978 447,202 45,090 579,172 122,248 2,563,652 Acquired with deteriorated credit quality — — — — — 95,067 149,031 244,098 Ending balance $ 319,654 $ 161,507 $ 907,524 $ 456,106 $ 45,090 $ 674,239 $ 271,279 $ 2,835,399 Commercial, Real estate – Real estate – Real Consumer Purchased non-covered Covered Total (Dollars in Thousands) Three months ended June 30, 2014: Balance, March 31, 2014 $ 2,219 $ 5,918 $ 8,625 $ 5,280 $ 702 $ — $ — $ 22,744 Provision for loan losses (3 ) (426 ) 452 590 384 — 368 1,365 Loans charged off (165 ) (157 ) (769 ) (752 ) (130 ) — (641 ) (2,614 ) Recoveries of loans previously charged off 134 96 9 48 199 — 273 759 Balance, June 30, 2014 $ 2,185 $ 5,431 $ 8,317 $ 5,166 $ 1,155 $ — $ — $ 22,254 Six months ended June 30, 2014: Balance, January 1, 2014 $ 1,823 $ 5,538 $ 8,393 $ 6,034 $ 589 $ — $ — $ 22,377 Provision for loan losses 1,087 (89 ) 1,074 (66 ) 492 — 593 3,091 Loans charged off (908 ) (222 ) (1,302 ) (933 ) (214 ) — (1,139 ) (4,718 ) Recoveries of loans previously charged off 183 204 152 131 288 — 546 1,504 Balance, June 30, 2014 $ 2,185 $ 5,431 $ 8,317 $ 5,166 $ 1,155 $ — $ — $ 22,254 Period-end amount allocated to: Loans individually evaluated for impairment $ 282 $ 710 $ 1,652 $ 801 $ — $ — $ — $ 3,445 Loans collectively evaluated for impairment 1,903 4,721 6,665 4,365 1,155 — — 18,809 Ending balance $ 2,185 $ 5,431 $ 8,317 $ 5,166 $ 1,155 $ — $ — $ 22,254 Loans: Individually evaluated for impairment $ 855 $ 3,264 $ 16,865 $ 11,538 $ — $ — $ — $ 32,522 Collectively evaluated for impairment 303,733 146,082 833,135 411,193 43,394 608,874 152,620 2,499,031 Acquired with deteriorated credit quality — — — — — 93,257 178,630 271,887 Ending balance $ 304,588 $ 149,346 $ 850,000 $ 422,731 $ 43,394 $ 702,131 $ 331,250 $ 2,803,440
Purchased Non-Covered Loans [Member]
Summary of Purchased Non-Covered Loans According to Major Loan Type	Purchased non-covered loans are shown below according to major loan type as of the end of the periods shown: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 45,337 $ 38,041 $ 41,583 Real estate – construction and development 75,302 58,362 64,084 Real estate – commercial and farmland 404,588 306,706 311,748 Real estate – residential 276,798 266,342 278,451 Consumer installment 6,288 4,788 6,265 $ 808,313 $ 674,239 $ 702,131
Summary of Financial Receivable Nonaccrual Basis	The following table presents an analysis of purchased non-covered loans accounted for on a nonaccrual basis: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 309 $ 175 $ 143 Real estate – construction and development 1,483 1,119 2,273 Real estate – commercial and farmland 9,634 10,242 6,647 Real estate – residential 5,930 6,644 6,658 Consumer installment 88 69 49 $ 17,444 $ 18,249 $ 15,770
Summary of Past Due Financial Receivables	The following table presents an analysis of purchased non-covered past due loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ — $ 1,101 $ 202 $ 1,303 $ 44,034 $ 45,337 $ — Real estate – construction & development 245 — 1,026 1,271 74,031 75,302 — Real estate – commercial & farmland 2,115 724 9,062 11,901 392,687 404,588 — Real estate – residential 3,848 1,400 5,369 10,617 266,181 276,798 — Consumer installment loans 6 — 84 90 6,198 6,288 — Total $ 6,214 $ 3,225 $ 15,743 $ 25,182 $ 783,131 $ 808,313 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 30, 2014: Commercial, financial & agricultural $ 461 $ 90 $ 175 $ 726 $ 37,315 $ 38,041 $ — Real estate – construction & development 790 1,735 1,117 3,642 54,720 58,362 — Real estate – commercial & farmland 2,107 1,194 9,529 12,830 293,876 306,706 — Real estate – residential 6,907 1,401 6,369 14,677 251,665 266,342 — Consumer installment loans 82 — 65 147 4,641 4,788 — Total $ 10,347 $ 4,420 $ 17,255 $ 32,022 $ 642,217 $ 674,239 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 137 $ 26 $ 143 $ 306 $ 41,277 $ 41,583 $ — Real estate – construction & development 712 168 2,165 3,045 61,039 64,084 — Real estate – commercial & farmland 1,263 1,605 6,647 9,515 302,233 311,748 — Real estate – residential 6,952 983 6,144 14,079 264,372 278,451 — Consumer installment loans 23 29 47 99 6,166 6,265 — Total $ 9,087 $ 2,811 $ 15,146 $ 27,044 $ 675,087 $ 702,131 $ —
Summary of Impaired Financial Receivables	The following is a summary of information pertaining to purchased non-covered impaired loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 17,444 $ 18,249 $ 15,770 Troubled debt restructurings not included above 6,792 1,212 — Total impaired loans $ 24,236 $ 19,461 $ 15,770 Quarter-to-date interest income recognized on impaired loans $ 143 $ 64 $ 41 Year-to-date interest income recognized on impaired loans $ 161 $ 132 $ 41 Quarter-to-date foregone interest income on impaired loans $ 451 $ 521 $ 426 Year-to-date foregone interest income on impaired loans $ 923 $ 1,759 $ 652 The following table presents an analysis of information pertaining to purchased non-covered impaired loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 1,476 $ 309 $ — $ 309 $ — $ 254 $ 227 Real estate – construction & development 9,656 1,857 — 1,857 — 1,485 1,469 Real estate – commercial & farmland 17,043 13,691 — 13,691 — 11,753 11,366 Real estate – residential 12,992 8,285 — 8,285 — 7,982 7,718 Consumer installment loans 111 94 — 94 — 61 64 Total $ 41,278 $ 24,236 $ — $ 24,236 $ — $ 21,535 $ 20,844 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 1,366 $ 175 $ — $ 175 $ — $ 277 $ 165 Real estate – construction & development 5,161 1,436 — 1,436 — 2,242 1,643 Real estate – commercial & farmland 15,007 10,588 — 10,588 — 11,148 7,484 Real estate – residential 12,283 7,191 — 7,191 — 8,447 7,084 Consumer installment loans 172 71 — 71 — 124 68 Total $ 33,989 $ 19,461 $ — $ 19,461 $ — $ 22,238 $ 16,444 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 550 $ 143 $ — $ 143 $ — $ 130 $ 90 Real estate – construction & development 4,649 2,273 — 2,273 — 1,702 1,243 Real estate – commercial & farmland 9,848 6,647 — 6,647 — 6,738 5,043 Real estate – residential 10,598 6,658 — 6,658 — 6,933 6,175 Consumer installment loans 65 49 — 49 — 41 31 Total $ 25,710 $ 15,770 $ — $ 15,770 $ — $ 15,544 $ 12,582
Summary of Credit Quality Indicate Financial Receivable	The following table presents the purchased non-covered loan portfolio by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 9,091 $ — $ 80 $ — $ 952 $ — $ 10,123 15 1,377 866 8,710 41,641 626 — 53,220 20 12,545 16,979 190,219 139,792 2,769 — 362,304 23 — 240 3,792 6,505 — — 10,537 25 18,556 49,070 165,267 65,818 1,700 — 300,411 30 2,462 3,409 19,042 9,803 63 — 34,779 40 1,276 4,738 17,478 13,217 178 — 36,887 50 30 — — 22 — — 52 60 — — — — — — — Total $ 45,337 $ 75,302 $ 404,588 $ 276,798 $ 6,288 $ — $ 808,313 The following table presents the purchased non-covered loan portfolio by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 6,624 $ — $ — $ 290 $ 480 $ — $ 7,394 15 1,376 552 13,277 14,051 501 — 29,727 20 13,657 12,991 116,308 64,083 1,647 — 208,686 23 73 — 3,207 3,298 — — 6,578 25 13,753 36,230 144,293 164,959 1,920 — 361,155 30 1,618 4,365 12,279 7,444 41 — 25,747 40 910 4,254 17,342 12,184 199 — 34,889 50 30 — — 33 — — 63 60 — — — — — — — Total $ 38,041 $ 58,362 $ 306,706 $ 266,342 $ 4,788 $ — $ 674,239 The following table presents the purchased non-covered loan portfolio by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 3,494 $ — $ — $ 293 $ 557 $ — $ 4,344 15 4,728 245 14,191 15,839 537 — 35,540 20 11,567 12,905 94,598 64,937 2,683 — 186,690 23 — — — 165 — — 165 25 18,251 42,127 175,427 178,523 2,343 — 416,671 30 3,162 4,722 16,078 8,326 21 — 32,309 40 381 4,085 11,454 10,368 124 — 26,412 50 — — — — — — — 60 — — — — — — — Total $ 41,583 $ 64,084 $ 311,748 $ 278,451 $ 6,265 $ — $ 702,131
Summary of Troubled Debt Restructurings by Loan Class	The following table presents the purchased non-covered loans by class modified as troubled debt restructurings, which occurred during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural — $ — — $ — Real estate – construction & development — — — — Real estate – commercial & farmland — — — — Real estate – residential 5 1,017 — — Consumer installment 1 5 — — Total 6 $ 1,022 — $ —
Summary of Troubled Debt Restructuring by Loan Class, Defaulted under Restructured Terms	The following table presents the troubled debt restructurings by class that defaulted (defined as 30 days past due) during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural — $ — — $ — Real estate – construction & development — — — — Real estate – commercial & farmland — — — — Real estate – residential 1 65 — — Consumer installment — — — — Total 1 $ 65 — $ —
Purchased Non-Covered Loans [Member] | Accrual And Non Accrual [Member]
Summary of Troubled Debt Restructurings by Loan Class	The following table presents the amount of troubled debt restructurings by loan class of purchased non-covered loans, classified separately as accrual and non-accrual at June 30, 2015, December 31, 2014 and June 30, 2014: As of June 30, 2015 Accruing Loans Non-Accruing Loans Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural — $ — 1 $ 1 Real estate – construction & development 3 374 — — Real estate – commercial & farmland 7 4,058 1 69 Real estate – residential 12 2,354 2 91 Consumer installment 2 6 2 5 Total 24 $ 6,792 6 $ 166 As of December 31, 2014 Accruing Loans Non-Accruing Loans Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural — $ — — $ — Real estate – construction & development 1 317 — — Real estate – commercial & farmland 1 346 — — Real estate – residential 6 547 1 25 Consumer installment 1 2 — — Total 9 $ 1,212 1 $ 25
Excluding Purchased Non-Covered and Covered Loans [Member]
Summary of Financial Receivable Nonaccrual Basis	The following table presents an analysis of loans accounted for on a nonaccrual basis, excluding purchased non-covered and covered loans: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 4,067 $ 1,672 $ 1,596 Real estate – construction and development 1,594 3,774 3,452 Real estate – commercial and farmland 8,938 8,141 8,831 Real estate – residential 5,650 7,663 7,795 Consumer installment 491 478 437 $ 20,740 $ 21,728 $ 22,111
Summary of Past Due Financial Receivables	The following table presents an aging analysis of loans, excluding purchased non-covered and covered past due loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 840 $ 888 $ 3,891 $ 5,619 $ 367,583 $ 373,202 $ — Real estate – construction & development 1,201 374 1,536 3,111 201,908 205,019 — Real estate – commercial & farmland 1,958 2,823 7,014 11,795 998,400 1,010,195 — Real estate – residential 5,135 1,949 4,727 11,811 525,390 537,201 — Consumer installment loans 293 77 315 685 29,395 30,080 — Other — — — — 15,903 15,903 — Total $ 9,427 $ 6,111 $ 17,483 $ 33,021 $ 2,138,579 $ 2,171,600 $ — Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 900 $ 233 $ 1,577 $ 2,710 $ 316,944 $ 319,654 $ — Real estate – construction & development 1,382 286 3,367 5,035 156,472 161,507 — Real estate – commercial & farmland 2,859 635 7,668 11,162 896,362 907,524 — Real estate – residential 3,953 2,334 6,755 13,042 443,064 456,106 — Consumer installment loans 634 158 366 1,158 29,624 30,782 1 Other — — — — 14,308 14,308 — Total $ 9,728 $ 3,646 $ 19,733 $ 33,107 $ 1,856,774 $ 1,889,881 $ 1 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 1,180 $ 966 $ 1,077 $ 3,223 $ 301,365 $ 304,588 $ — Real estate – construction & development 3,942 296 3,449 7,687 141,659 149,346 — Real estate – commercial & farmland 4,622 1,860 7,404 13,886 836,114 850,000 — Real estate – residential 5,806 3,829 7,197 16,832 405,899 422,731 — Consumer installment loans 345 176 310 831 31,071 31,902 — Other — — — — 11,492 11,492 — Total $ 15,895 $ 7,127 $ 19,437 $ 42,459 $ 1,727,600 $ 1,770,059 $ —
Summary of Impaired Financial Receivables	The following is a summary of information pertaining to impaired loans, excluding purchased non-covered and covered loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 20,740 $ 21,728 $ 22,111 Troubled debt restructurings not included above 12,467 12,759 17,337 Total impaired loans $ 33,207 $ 34,487 $ 39,448 Quarter-to-date interest income recognized on impaired loans $ 192 $ 237 $ 1,133 Year-to-date interest income recognized on impaired loans $ 344 $ 1,991 $ 1,423 Quarter-to-date foregone interest income on impaired loans $ 311 $ 323 $ 375 Year-to-date foregone interest income on impaired loans $ 629 $ 1,491 $ 815 The following table presents an analysis of information pertaining to impaired loans, excluding purchased non-covered and covered loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 6,004 $ 442 $ 3,903 $ 4,345 $ 458 $ 2,819 $ 2,533 Real estate – construction & development 3,765 — 2,416 2,416 445 3,245 3,648 Real estate – commercial & farmland 18,117 5,960 9,595 15,555 1,243 15,378 15,125 Real estate – residential 11,743 1,153 9,199 10,352 1,825 11,555 12,006 Consumer installment loans 633 — 539 539 8 494 507 Total $ 40,262 $ 7,555 $ 25,652 $ 33,207 $ 3,979 $ 33,491 $ 33,819 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 3,387 $ 6 $ 1,956 $ 1,962 $ 395 $ 2,457 $ 3,021 Real estate – construction & development 8,325 448 4,005 4,453 771 4,703 5,368 Real estate – commercial & farmland 17,514 4,967 9,651 14,618 1,859 15,341 15,972 Real estate – residential 15,571 3,514 9,407 12,921 974 14,244 16,317 Consumer installment loans 618 — 533 533 9 527 519 Total $ 45,415 $ 8,935 $ 25,552 $ 34,487 $ 4,008 $ 37,272 $ 41,197 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 3,398 $ — $ 1,852 $ 1,852 $ 298 $ 2,786 $ 3,397 Real estate – construction & development 9,336 — 5,532 5,532 798 5,783 5,811 Real estate – commercial & farmland 19,215 — 16,421 16,421 1,629 16,851 16,394 Real estate – residential 18,313 — 15,131 15,131 884 16,563 17,698 Consumer installment loans 638 — 512 512 10 530 514 Total $ 50,900 $ — $ 39,448 $ 39,448 $ 3,619 $ 42,513 $ 43,814
Summary of Credit Quality Indicate Financial Receivable	The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 173,795 $ 268 $ 150 $ 1,606 $ 6,114 $ — $ 181,933 15 25,447 3,402 127,090 85,812 1,319 — 243,070 20 96,169 47,207 592,636 334,999 17,833 15,903 1,104,747 23 635 8,071 11,984 6,655 55 — 27,400 25 69,304 140,119 248,227 83,207 3,807 — 544,664 30 2,566 2,510 11,088 8,612 244 — 25,020 40 5,286 3,442 19,020 16,310 708 — 44,766 50 — — — — — — — 60 — — — — — — — Total $ 373,202 $ 205,019 $ 1,010,195 $ 537,201 $ 30,080 $ 15,903 $ 2,171,600 The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 121,355 $ 268 $ 155 $ 226 $ 6,573 $ — $ 128,577 15 25,318 4,010 128,170 59,301 1,005 — 217,804 20 100,599 47,541 511,198 256,758 17,544 14,308 947,948 23 56 8,933 10,507 9,672 37 — 29,205 25 62,519 93,514 224,464 102,998 4,692 — 488,187 30 3,758 1,474 13,035 7,459 257 — 25,983 40 6,049 5,767 19,995 19,692 673 — 52,176 50 — — — — 1 — 1 60 — — — — — — — Total $ 319,654 $ 161,507 $ 907,524 $ 456,106 $ 30,782 $ 14,308 $ 1,889,881 The following table presents the loan portfolio, excluding purchased non-covered and covered loans, by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ 103,726 $ — $ 255 $ 505 $ 6,356 $ — $ 110,842 15 24,620 4,678 141,846 54,388 1,120 — 226,652 20 102,278 48,008 460,715 226,149 17,714 11,492 866,356 23 123 9,215 9,318 9,479 294 — 28,429 25 65,882 77,973 197,381 103,846 5,281 — 450,363 30 4,004 2,680 12,914 13,568 194 — 33,360 40 3,955 6,792 27,571 14,786 943 — 54,047 50 — — — 10 — — 10 60 — — — — — — — Total $ 304,588 $ 149,346 $ 850,000 $ 422,731 $ 31,902 $ 11,492 $ 1,770,059
Summary of Troubled Debt Restructurings by Loan Class	The following table presents the loans by class modified as troubled debt restructurings, excluding purchased non-covered and covered loans, which occurred during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 3 $ 18 2 $ 16 Real estate – construction & development 2 16 4 235 Real estate – commercial & farmland — — 3 1,037 Real estate – residential 15 729 6 328 Consumer installment 5 19 11 46 Total 25 $ 782 26 $ 1,662
Summary of Troubled Debt Restructuring by Loan Class, Defaulted under Restructured Terms	The following table presents the covered loans by class modified as troubled debt restructurings, excluding purchased non-covered and covered loans, which occurred during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 1 $ 1 — $ — Real estate – construction & development 2 34 2 28 Real estate – commercial & farmland 4 796 5 1,024 Real estate – residential 6 376 24 1,525 Consumer installment 2 5 — — Total 15 $ 1,212 31 $ 2,577
Summary of Troubled Debt Restructuring by Loan Class, Classified Separately under Restructured Terms	The following table presents the amount of troubled debt restructurings by loan class of covered loans, classified separately as accrual and non-accrual at June 30, 2015, December 31, 2014 and June 30, 2014: As of June 30, 2015 Accruing Loans Non-Accruing Loans Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 1 $ 3 2 $ 0 Real estate – construction & development 3 2,832 1 13 Real estate – commercial & farmland 11 3,973 3 1,105 Real estate – residential 95 10,690 14 941 Consumer installment 1 2 — — Total 111 $ 17,500 20 $ 2,059 As of December 31, 2014 Accruing Loans Non-Accruing Loans Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 2 $ 40 2 $ — Real estate – construction & development 4 3,037 2 29 Real estate – commercial & farmland 14 8,079 5 1,082 Real estate – residential 96 11,460 8 831 Consumer installment 1 3 — — Total 117 $ 22,619 17 $ 1,942 As of June 30, 2014 Accruing Loans Non-Accruing Loans Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 1 $ 12 4 $ 27 Real estate – construction & development 4 3,020 5 74 Real estate – commercial & farmland 13 6,979 7 1,388 Real estate – residential 92 11,091 16 1,070 Consumer installment — — 1 4 Total 110 $ 21,102 33 $ 2,563
Excluding Purchased Non-Covered and Covered Loans [Member] | Accrual And Non Accrual [Member]
Summary of Troubled Debt Restructurings by Loan Class	The following table presents the amount of troubled debt restructurings by loan class, excluding purchased non-covered and covered loans, classified separately as accrual and non-accrual at June 30, 2015, December 31, 2014 and June 30, 2014: As of June 30, 2015 Accruing Loans Non-Accruing Loans Loan class: # Balance ( in thousands ) # Balance ( in thousands ) Commercial, financial & agricultural 6 $ 278 5 $ 29 Real estate – construction & development 11 821 3 57 Real estate – commercial & farmland 17 6,617 3 598 Real estate – residential 49 4,702 15 783 Consumer installment 11 49 17 82 Total 94 $ 12,467 43 $ 1,549 As of December 31, 2014 Accruing Loans Non-Accruing Loans Loan class: # Balance ( in thousands ) # Balance ( in thousands ) Commercial, financial & agricultural 6 $ 290 2 $ 13 Real estate – construction & development 9 679 5 228 Real estate – commercial & farmland 19 6,477 3 724 Real estate – residential 47 5,258 11 1,485 Consumer installment 11 55 11 73 Total 92 $ 12,759 32 $ 2,523 As of June 30, 2014 Accruing Loans Non-Accruing Loans Loan class: # Balance ( in thousands ) # Balance ( in thousands ) Commercial, financial & agricultural 3 $ 257 3 $ 465 Real estate – construction & development 12 2,080 2 32 Real estate – commercial & farmland 19 7,590 4 2,151 Real estate – residential 38 7,335 8 1,044 Consumer installment 14 75 5 51 Total 86 $ 17,337 22 $ 3,743
Covered Loans [Member]
Summary of Financial Receivable Nonaccrual Basis	The following table presents an analysis of covered loans accounted for on a nonaccrual basis: (Dollars in Thousands) June 30, December 31, June 30, Commercial, financial and agricultural $ 7,948 $ 8,541 $ 12,254 Real estate – construction and development 3,120 7,601 8,028 Real estate – commercial and farmland 13,997 12,584 17,027 Real estate – residential 3,712 6,595 8,702 Consumer installment 94 91 127 $ 28,871 $ 35,412 $ 46,138
Summary of Past Due Financial Receivables	The following table presents an aging analysis of covered loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 237 $ 240 $ 1,670 $ 2,147 $ 15,519 $ 17,666 $ — Real estate – construction & development 292 31 3,045 3,368 11,634 15,002 143 Real estate – commercial & farmland 699 81 9,396 10,176 101,596 111,772 — Real estate – residential 2,690 927 2,122 5,739 59,243 64,982 — Consumer installment loans — — 50 50 126 176 — Total $ 3,918 $ 1,279 $ 16,283 $ 21,480 $ 188,118 $ 209,598 $ 143 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 451 $ 136 $ 1,878 $ 2,465 $ 19,002 $ 21,467 $ — Real estate – construction & development 238 226 6,703 7,167 16,280 23,447 — Real estate – commercial & farmland 4,371 1,486 7,711 13,568 134,059 147,627 714 Real estate – residential 3,464 962 5,656 10,082 68,438 78,520 — Consumer installment loans 10 — 91 101 117 218 — Total $ 8,534 $ 2,810 $ 22,039 $ 33,383 $ 237,896 $ 271,279 $ 714 Loans Loans Loans 90 Total Current Total Loans 90 (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 16 $ 467 $ 6,909 $ 7,392 $ 17,817 $ 25,209 $ — Real estate – construction & development 551 459 7,708 8,718 22,882 31,600 — Real estate – commercial & farmland 6,399 139 10,443 16,981 171,662 188,643 — Real estate – residential 2,490 690 5,939 9,119 76,399 85,518 — Consumer installment loans — 49 56 105 175 280 — Total $ 9,456 $ 1,804 $ 31,055 $ 42,315 $ 288,935 $ 331,250 $ —
Summary of Impaired Financial Receivables	The following is a summary of information pertaining to covered impaired loans: As of and For the Period Ended June 30, December 31, June 30, (Dollars in Thousands) Nonaccrual loans $ 28,871 $ 35,412 $ 46,138 Troubled debt restructurings not included above 17,500 22,619 9,221 Total impaired loans $ 46,371 $ 58,031 $ 55,359 Quarter-to-date interest income recognized on impaired loans $ 219 $ 443 $ 796 Year-to-date interest income recognized on impaired loans $ 431 $ 2,057 $ 1,193 Quarter-to-date foregone interest income on impaired loans $ 409 $ 571 $ 843 Year-to-date foregone interest income on impaired loans $ 947 $ 3,123 $ 1,892 The following table presents an analysis of information pertaining to covered impaired loans as of June 30, 2015, December 31, 2014 and June 30, 2014: Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2015: Commercial, financial & agricultural $ 14,260 $ 7,951 $ — $ 7,951 $ — $ 8,869 $ 8,773 Real estate – construction & development 29,895 5,953 — 5,953 — 7,819 8,757 Real estate – commercial & farmland 37,426 17,970 — 17,970 — 21,795 21,418 Real estate – residential 18,226 14,402 — 14,402 — 16,600 17,084 Consumer installment loans 125 95 — 95 — 99 97 Total $ 99,932 $ 46,371 $ — $ 46,371 $ — $ 55,179 $ 56,129 Unpaid Recorded Recorded Total Related Three Month Twelve Month (Dollars in Thousands) As of December 31, 2014: Commercial, financial & agricultural $ 14,385 $ 8,582 $ — $ 8,582 $ — $ 8,525 $ 9,325 Real estate – construction & development 27,289 10,638 — 10,638 — 11,279 13,935 Real estate – commercial & farmland 31,309 20,663 — 20,663 — 21,890 28,057 Real estate – residential 22,860 18,054 — 18,054 — 18,242 20,776 Consumer installment loans 124 94 — 94 — 100 160 Total $ 95,967 $ 58,031 $ — $ 58,031 $ — $ 60,036 $ 72,253 Unpaid Recorded Recorded Total Related Three Month Six Month (Dollars in Thousands) As of June 30, 2014: Commercial, financial & agricultural $ 14,694 $ 12,266 $ — $ 12,266 $ — $ 11,153 $ 9,858 Real estate – construction & development 12,921 11,048 — 11,048 — 14,541 15,706 Real estate – commercial & farmland 27,742 24,007 — 24,007 — 27,877 32,167 Real estate – residential 21,874 19,793 — 19,793 — 21,199 22,465 Consumer installment loans 161 127 — 127 — 130 200 Total $ 77,392 $ 67,241 $ — $ 67,241 $ — $ 74,899 $ 80,397
Summary of Credit Quality Indicate Financial Receivable	The following table presents the covered loan portfolio by risk grade as of June 30, 2015: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — — 488 125 — — 613 20 580 1,218 17,382 12,571 43 — 31,794 23 68 — 5,255 6,083 — — 11,406 25 4,089 8,142 60,682 30,870 37 — 103,820 30 4,923 2,409 4,165 5,730 — — 17,227 40 8,006 3,233 23,800 9,603 96 — 44,738 50 — — — — — — — 60 — — — — — — — Total $ 17,666 $ 15,002 $ 111,772 $ 64,982 $ 176 $ — $ 209,598 The following table presents the covered loan portfolio by risk grade as of December 31, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — 1 761 525 — — 1,287 20 917 3,184 23,167 14,089 77 — 41,434 23 164 537 11,404 6,642 — — 18,747 25 5,181 9,406 80,334 33,124 37 — 128,082 30 4,808 2,753 5,302 8,050 — — 20,913 40 10,397 7,566 26,659 16,090 104 — 60,816 50 — — — — — — — 60 — — — — — — — Total $ 21,467 $ 23,447 $ 147,627 $ 78,520 $ 218 $ — $ 271,279 The following table presents the covered loan portfolio by risk grade as of June 30, 2014: Risk Grade Commercial, Real estate - Real estate - Real estate - Consumer Other Total (Dollars in Thousands) 10 $ — $ — $ — $ — $ — $ — $ — 15 — 2 822 629 — — 1,453 20 1,133 5,524 33,050 17,143 68 — 56,918 23 124 555 15,528 5,557 — — 21,764 25 6,569 9,251 94,504 36,507 40 — 146,871 30 4,398 4,802 9,959 8,326 2 — 27,487 40 12,985 11,466 34,780 17,356 170 — 76,757 50 — — — — — — — 60 — — — — — — — Total $ 25,209 $ 31,600 $ 188,643 $ 85,518 $ 280 $ — $ 331,250
Summary of Troubled Debt Restructuring by Loan Class, Defaulted under Restructured Terms	The following table presents the troubled debt restructurings by class that defaulted (defined as 30 days past due) during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural — $ — — $ — Real estate – construction & development — — — — Real estate – commercial & farmland 1 21 1 71 Real estate – residential 5 276 13 1,010 Consumer installment — — — — Total 6 $ 297 14 $ 1,081
Financing Receivable Troubled Debt Restructuring [Member]
Summary of Troubled Debt Restructuring by Loan Class, Defaulted under Restructured Terms	The following table presents the troubled debt restructurings by class that defaulted (defined as 30 days past due) during the six months ending June 30, 2015 and 2014: June 30, 2015 June 30, 2014 Loan class: # Balance in thousands # Balance in thousands Commercial, financial & agricultural 2 $ 35 — $ — Real estate – construction & development — — 1 35 Real estate – commercial & farmland 5 1,274 — — Real estate – residential 10 884 2 72 Consumer installment 6 32 1 23 Total 23 $ 2,225 4 $ 130

Assets Acquired in FDIC-Assis26

Assets Acquired in FDIC-Assisted Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2015
Banking and Thrift [Abstract]
Schedule of Acquisition Details	From October 2009 through July 2012, the Company participated in ten FDIC-assisted acquisitions whereby the Company purchased certain failed institutions out of the FDIC’s receivership. These institutions include the following: Bank Acquired Location: Branches: Date Acquired American United Bank (“AUB”) Lawrenceville, Ga. 1 October 23, 2009 United Security Bank (“USB”) Sparta, Ga. 2 November 6, 2009 Satilla Community Bank (“SCB”) St. Marys, Ga. 1 May 14, 2010 First Bank of Jacksonville (“FBJ”) Jacksonville, Fl. 2 October 22, 2010 Tifton Banking Company (“TBC”) Tifton, Ga. 1 November 12, 2010 Darby Bank & Trust (“DBT”) Vidalia, Ga. 7 November 12, 2010 High Trust Bank (“HTB”) Stockbridge, Ga. 2 July 15, 2011 One Georgia Bank (“OGB”) Midtown Atlanta, Ga. 1 July 15, 2011 Central Bank of Georgia (“CBG”) Ellaville, Ga. 5 February 24, 2012 Montgomery Bank & Trust (“MBT”) Ailey, Ga. 2 July 6, 2012
Components of Covered Assets	The following table summarizes components of all covered assets at June 30, 2015, December 31, 2014 and June 30, 2014 and their origin: Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of June 30, 2015: AUB $ — $ — $ — $ — $ — $ — $ — $ 187 USB 3,883 18 3,865 165 — 165 4,030 (1,232 ) SCB 5,318 209 5,109 95 — 95 5,204 1,300 FBJ 17,708 1,286 16,422 815 121 694 17,116 1,227 DBT 46,269 3,667 42,602 5,216 700 4,516 47,118 2,126 TBC 19,609 515 19,094 1,480 116 1,364 20,458 521 HTB 47,176 4,127 43,049 3,085 955 2,130 45,179 4,806 OGB 34,218 2,192 32,026 442 — 442 32,468 1,856 CBG 52,259 4,828 47,431 3,559 339 3,220 50,651 4,166 Total $ 226,440 $ 16,842 $ 209,598 $ 14,857 $ 2,231 $ 12,626 $ 222,224 $ 14,957 Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of December 31, 2014: AUB $ — $ — $ — $ — $ — $ — $ — $ 188 USB 4,350 150 4,200 165 — 165 4,365 (1,197 ) SCB 26,686 602 26,084 2,849 389 2,460 28,544 1,828 FBJ 21,243 1,825 19,418 632 — 632 20,050 1,885 DBT 64,338 6,437 57,901 6,655 514 6,141 64,042 6,860 TBC 23,487 1,117 22,370 2,388 367 2,021 24,391 3,287 HTB 52,699 5,120 47,579 3,670 1,283 2,387 49,966 6,459 OGB 42,971 3,785 39,186 2,244 39 2,205 41,391 3,906 CBG 60,950 6,409 54,541 4,805 909 3,896 58,437 8,135 Total $ 296,724 $ 25,445 $ 271,279 $ 23,408 $ 3,501 $ 19,907 $ 291,186 $ 31,351 Covered loans Less: Fair Total OREO Less: Fair Total Total FDIC As of June 30, 2014: AUB $ 9,106 $ 133 $ 8,973 $ 1,690 $ — $ 1,690 $ 10,663 $ 1,676 USB 14,030 805 13,225 2,927 62 2,865 16,090 920 SCB 30,545 954 29,591 3,332 308 3,024 32,615 3,073 FBJ 23,264 2,696 20,568 1,734 135 1,599 22,167 2,752 DBT 81,700 8,774 72,926 12,766 913 11,853 84,779 10,119 TBC 28,363 1,853 26,510 4,493 758 3,735 30,245 3,543 HTB 59,267 6,535 52,732 4,130 1,349 2,781 55,513 9,000 OGB 49,501 4,937 44,564 7,964 2,984 4,980 49,544 7,268 CBG 71,959 9,798 62,161 7,432 1,533 5,899 68,060 10,829 Total $ 367,735 $ 36,485 $ 331,250 $ 46,468 $ 8,042 $ 38,426 $ 369,676 $ 49,180
Rollforward of Acquired Covered Loans	A rollforward of acquired covered loans for the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014 is shown below: (Dollars in Thousands) June 30, December 31, June 30, Balance, January 1 $ 271,279 $ 390,237 $ 390,237 Charge-offs (7,065 ) (9,255 ) (5,694 ) Accretion 6,251 22,188 13,330 Transfer to covered other real estate owned (6,534 ) (13,650 ) (9,083 ) Transfer to purchased, non-covered loans due to loss-share expiration (15,462 ) (15,475 ) — Payments received (38,871 ) (102,996 ) (57,540 ) Other — 230 — Ending balance $ 209,598 $ 271,279 $ 331,250
Changes in FDIC Shared-Loss Receivable	Changes in the FDIC shared-loss receivable for the six months ended June 30, 2015, for the year ended December 31, 2014 and for the six months ended June 30, 2014 are as follows: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 31,351 $ 65,441 $ 65,441 Payments received from FDIC (12,539 ) (22,494 ) (10,576 ) Accretion (amortization) (5,393 ) (18,449 ) (11,390 ) Changes in clawback liability (1,057 ) (1,222 ) (228 ) Increase in receivable due to: Charge-offs on covered loans 1,955 3,372 2,372 Write downs of covered other real estate 2,206 4,771 2,090 Reimbursable expenses on covered assets 1,866 1,078 2,248 Other activity, net (3,432 ) (1,146 ) (777 ) Ending balance $ 14,957 $ 31,351 $ 49,180

Other Real Estate Owned (Tables

Other Real Estate Owned (Tables)	6 Months Ended
	Jun. 30, 2015
Banking and Thrift [Abstract]
Summary of Activity in Other Real Estate Owned	The following is a summary of the activity in other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 33,160 $ 33,351 $ 33,351 Loans transferred to other real estate owned 8,636 11,972 6,400 Net gains (losses) on sale and write-downs (9,449 ) (4,585 ) (1,523 ) Sales proceeds (9,780 ) (7,578 ) (2,855 ) Ending balance $ 22,567 $ 33,160 $ 35,373
Summary of Activity in Purchased Non-Covered Other Real Estate Owned	The following is a summary of the activity in purchased, non-covered other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 15,585 $ 4,276 $ 4,276 Loans transferred to other real estate owned 2,039 4,160 1,425 Acquired in acquisitions 2,189 8,864 11,464 Transfer from covered other real estate owned due to loss-share expiration 75 1,226 — Net gains (losses) on sale and write-downs 182 828 61 Sales proceeds (6,958 ) (3,769 ) (628 ) Ending balance $ 13,112 $ 15,585 $ 16,598
Summary of Activity in Covered Other Real Estate Owned	The following is a summary of the activity in covered other real estate owned during the six months ended June 30, 2015, the year ended December 31, 2014 and the six months ended June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Beginning balance, January 1 $ 19,907 $ 45,893 $ 45,893 Loans transferred to other real estate owned 6,534 13,650 9,083 Transfer from covered other real estate owned due to loss-share expiration (75 ) (1,226 ) — Net gains (losses) on sale and write-downs (2,758 ) (5,965 ) (2,613 ) Sales proceeds (10,982 ) (32,445 ) (13,937 ) Ending balance $ 12,626 $ 19,907 $ 38,426

Securities Sold under Agreeme28

Securities Sold under Agreements to Repurchase (Tables)	6 Months Ended
	Jun. 30, 2015
Brokers and Dealers [Abstract]
Securities Sold under Agreements to Repurchase	The following is a summary of the Company’s securities sold under agreements to repurchase at June 30, 2015, December 31, 2014 and June 30, 2014: (Dollars in Thousands) June 30, December 31, June 30, Securities sold under agreements to repurchase $ 75,066 $ 73,310 $ 51,109 Total $ 75,066 $ 73,310 $ 51,109

Other Borrowings (Tables)

Other Borrowings (Tables)	6 Months Ended
	Jun. 30, 2015
Debt Disclosure [Abstract]
Summary of Other Borrowings	Other borrowings consist of the following: (Dollars in Thousands) June 30, December 31, June 30, Daily Rate Credit from Federal Home Loan Bank with a fixed interest rate of 0.36% $ — $ 35,000 $ 40,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.20%, due July 2, 2014 — — 5,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.21%, due July 16, 2014 — — 5,000 Advance from Federal Home Loan Bank with a fixed interest rate of 0.19%, due July 23, 2014 — — 3,000 Advances under revolving credit agreement with a regional bank with interest at 90-day LIBOR plus 3.50% (3.78% at June 30, 2015 and 3.73% at December 31, 2014) due in August 2016, secured by subsidiary bank stock 24,000 24,000 — Advances under revolving credit agreement with a regional bank with interest at 90-day LIBOR plus 4.00% (4.23% at June 30, 2014) due in August 2016, secured by subsidiary bank stock — — 22,500 Advance from correspondent bank with a fixed interest rate of 4.50%, due November 27, 2017, secured by subsidiary bank loan receivable — 4,881 4,936 Subordinated debt issued by Prosperity Bank due June 2016 with an interest rate of 90-day LIBOR plus 1.60% (1.84% at June 30, 2014) — — 5,000 Subordinated debt issued by The Prosperity Banking Company due September 2016 with an interest rate of 90-day LIBOR plus 1.75% (2.04% at June 30, 2015, 1.99% at December 31, 2014 and 1.98% at June 30, 2014) 15,000 15,000 14,857 Total $ 39,000 $ 78,881 $ 100,293

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
Summary of Company's Commitments	A summary of the Company’s commitments is as follows: (Dollars in Thousands) June 30, December 31, June 30, Commitments to extend credit $ 431,678 $ 293,517 $ 243,163 Unused lines of credit $ 51,834 $ 49,567 $ 41,908 Financial standby letters of credit $ 10,535 $ 9,683 $ 8,392 Mortgage interest rate lock commitments $ 91,977 $ 38,868 $ 70,854

Accumulated Other Comprehensi31

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2015
Equity [Abstract]
Summary of Accumulated Other Comprehensive Income	The following tables present a summary of the accumulated other comprehensive income balances, net of tax, as of June 30, 2015 and 2014: (Dollars in Thousands) Unrealized Gain (Loss) Unrealized Gain (Loss) Accumulated Other Balance, January 1, 2015 $ 508 $ 5,590 $ 6,098 Reclassification for gains included in net income — (14 ) (14 ) Current year changes (131 ) (2,881 ) (3,012 ) Balance, June 30, 2015 $ 377 $ 2,695 $ 3,072 (Dollars in Thousands) Unrealized Gain (Loss) Unrealized Gain (Loss) Accumulated Other Balance, January 1, 2014 $ 1,397 $ (1,691 ) $ (294 ) Reclassification for gains included in net income — (4 ) (4 ) Current year changes (638 ) 5,059 4,421 Balance, June 30, 2014 $ 759 $ 3,364 $ 4,123

Weighted Average Shares Outst32

Weighted Average Shares Outstanding (Tables)	6 Months Ended
	Jun. 30, 2015
Earnings Per Share [Abstract]
Summary of Weighted Average Number of Shares	Earnings per share have been computed based on the following weighted average number of common shares outstanding: For the Three Months For the Six Months 2015 2014 2015 2014 (Share Data in Thousands) (Share Data in Thousands) Basic shares outstanding 32,184 25,181 31,318 25,163 Plus: Dilutive effect of ISOs 116 120 115 118 Plus: Dilutive effect of Restricted grants 220 271 220 271 Diluted shares outstanding 32,520 25,572 31,653 25,552

Fair Value of Financial Instr33

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2015
Fair Value Disclosures [Abstract]
Difference Between Fair Value and Principal Balance for Mortgage Loans Held for Sale Measured at Fair Value	The following table summarizes the difference between the fair value and the principal balance for mortgage loans held for sale measured at fair value as of June 30, 2015, December 31, 2014 and June 30, 2014: June 30, December 31, June 30, (Dollars in Thousands) Aggregate Fair Value of Mortgage Loans held for sale $ 108,829 $ 94,759 $ 81,491 Aggregate Unpaid Principal Balance $ 105,184 $ 90,418 $ 78,395 Past due loans of 90 days or more $ — $ — $ — Nonaccrual loans $ — $ — $ —
Fair Value Measurements of Assets and Liabilities Measured on Recurring Basis	The following table presents the fair value measurements of assets and liabilities measured at fair value on a recurring basis and the level within the fair value hierarchy in which the fair value measurements fall as of June 30, 2015, December 31, 2014 and June 30, 2014 (dollars in thousands): Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,746 $ — $ 14,746 $ — State, county and municipal securities 167,372 — 167,372 — Corporate debt securities 12,836 — 10,336 2,500 Mortgage-backed securities 667,200 — 667,200 — Mortgage loans held for sale 108,829 — 108,829 — Mortgage banking derivative instruments 3,775 — 3,775 — Total recurring assets at fair value $ 974,758 $ — $ 972,258 $ 2,500 Derivative financial instruments $ 1,306 $ — $ 1,306 $ — Total recurring liabilities at fair value $ 1,306 $ — $ 1,306 $ — Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,678 $ — $ 14,678 $ — State, county and municipal securities 141,375 — 141,375 — Corporate debt securities 11,040 — 8,540 2,500 Mortgage-backed securities 374,712 8,248 366,464 — Mortgage loans held for sale 94,759 — 94,759 — Mortgage banking derivative instruments 1,757 — 1,757 — Total recurring assets at fair value $ 638,321 $ 8,248 $ 627,573 $ 2,500 Derivative financial instruments $ 1,315 $ — $ 1,315 $ — Mortgage banking derivative instruments 249 — 249 — Total recurring liabilities at fair value $ 1,564 $ — $ 1,564 $ — Fair Value Measurements on a Recurring Basis Fair Value Quoted Prices Significant Significant U.S. government agencies $ 14,445 $ — $ 14,445 $ — State, county and municipal securities 145,780 — 145,780 — Corporate debt securities 10,958 — 8,958 2,000 Mortgage-backed securities 364,447 — 364,447 — Mortgage loans held for sale 81,491 — 81,491 — Mortgage banking derivative instruments 2,625 — 2,625 — Total recurring assets at fair value $ 619,746 $ — $ 617,746 $ 2,000 Derivative financial instruments $ 1,142 $ — $ 1,142 $ — Total recurring liabilities at fair value $ 1,142 $ — $ 1,142 $ —
Summary of Fair Value Measurements of Assets Measured at Fair Value on Non-Recurring Basis	The following table presents the fair value measurements of assets measured at fair value on a non-recurring basis, as well as the general classification of such instruments pursuant to the valuation hierarchy as of June 30, 2015, December 31, 2014 and June 30, 2014 (dollars in thousands): Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 29,228 $ — $ — $ 29,228 Other real estate owned 11,069 — — 11,069 Purchased, non-covered other real estate owned 13,112 — — 13,112 Covered other real estate owned 12,626 — — 12,626 Total nonrecurring assets at fair value $ 54,966 $ — $ — $ 54,966 Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 30,479 $ — $ — $ 30,479 Purchased, non-covered other real estate owned 15,585 — — 15,585 Covered other real estate owned 19,907 — — 19,907 Total nonrecurring assets at fair value $ 65,971 $ — $ — $ 65,971 Fair Value Measurements on a Nonrecurring Basis Fair Quoted Significant Significant Impaired loans carried at fair value $ 35,829 $ — $ — $ 35,829 Purchased, non-covered other real estate owned 16,598 — — 16,598 Covered other real estate owned 38,426 — — 38,426 Total nonrecurring assets at fair value $ 90,853 $ — $ — $ 90,853
Summary of Significant Unobservable Inputs Used in Fair Value Measurement of Level 3 Assets and Liabilities	The following table shows significant unobservable inputs used in the fair value measurement of Level 3 assets and liabilities: Fair Valuation Technique Unobservable Inputs Range of Weighted As of June 30, 2015 Nonrecurring: Impaired loans $ 29,228 Third party appraisals and discounted cash flows Collateral discounts and discount rates 4% - 75% 24 % Other real estate owned $ 11,069 Third party appraisals, Sales contracts, Broker price opinions Collateral discounts and estimated costs to sell 10% 10 % Purchased non-covered other real estate owned $ 13,112 Third party appraisals Collateral discounts and estimated costs to sell 10% - 85% 19 % Covered other real estate owned $ 12,626 Third party appraisals Collateral discounts and estimated costs to sell 10% - 70% 12 % Recurring: Investment securities available for sale $ 2,500 Discounted par values Credit quality of underlying issuer 0% 0 % As of December 31, 2014 Nonrecurring: Impaired loans $ 30,479 Third party appraisals and discounted cash flows Collateral discounts and discount rates 0% - 50% 20 % Purchased non-covered real estate owned $ 15,585 Third party appraisals Collateral discounts and estimated costs to sell 10% - 96% 20 % Covered real estate owned $ 19,907 Third party appraisals Collateral discounts and estimated costs to sell 10% - 90% 11 % Recurring: Investment securities available for sale $ 2,500 Discounted par values Credit quality of underlying issuer 0% 0 % As of June 30, 2014 Nonrecurring: Impaired loans $ 35,289 Third party appraisals and discounted cash flows Collateral discounts and discount rates 4% - 90% 27 % Purchased non-covered real estate owned $ 16,598 Third party appraisals Collateral discounts and estimated costs to sell 21% - 70% 23 % Covered real estate owned $ 38,426 Third party appraisals Collateral discounts and estimated costs to sell 10% - 90% 11 % Recurring: Investment securities available for sale $ 2,000 Discounted par values Credit quality of underlying issuer 0% 0 %
Carrying Amount and Estimated Fair Value of Financial Instruments	The carrying amount and estimated fair value of the Company’s financial instruments, not shown elsewhere in these financial statements, were as follows: Fair Value Measurements at June 30, 2015 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 115,413 $ 115,413 $ — $ — $ 115,413 Federal funds sold and interest-bearing accounts 239,804 239,804 — — 239,804 Loans, net 3,407,609 — — 3,428,008 3,428,008 FDIC loss-share receivable 14,957 — — 5,295 5,295 Accrued interest receivable 17,648 17,648 — — 17,648 Financial liabilities: Deposits $ 4,511,547 $ — $ 4,513,218 $ — $ 4,513,218 Securities sold under agreements to repurchase 75,066 75,066 — — 75,066 Other borrowings 39,000 — 39,000 — 39,000 Accrued interest payable 1,239 1,239 — — 1,239 Subordinated deferrable interest debentures 69,325 — 50,924 — 50,924 Fair Value Measurements at December 31, 2014 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 78,026 $ 78,026 $ — $ — $ 78,026 Federal funds sold and interest-bearing accounts 92,323 92,323 — — 92,323 Loans, net 2,783,763 — — 2,785,627 2,785,627 FDIC loss-share receivable 31,351 — — 18,764 18,764 Accrued interest receivable 17,023 17,023 — — 17,023 Financial liabilities: Deposits $ 3,431,149 $ — $ 3,432,059 $ — $ 3,432,059 Securities sold under agreements to repurchase 73,310 73,310 — — 73,310 Other borrowings 78,881 — 78,881 — 78,881 Accrued interest payable 1,382 1,382 — — 1,382 Subordinated deferrable interest debentures 65,325 — 46,564 — 46,564 Fair Value Measurements at June 30, 2014 Using: Carrying Level 1 Level 2 Level 3 Total (Dollars in Thousands) Financial assets: Cash and due from banks $ 80,986 $ 80,986 $ — $ — $ 80,986 Federal funds sold and interest-bearing accounts 44,800 44,800 — — 44,800 Loans, net 2,745,897 — — 2,754,953 2,754,953 FDIC loss-share receivable 49,180 — — 36,182 36,182 Accrued interest receivable 15,711 15,711 — — 15,711 Financial liabilities: Deposits $ 3,389,035 $ — $ 3,389,880 $ — $ 3,389,880 Securities sold under agreements to repurchase 51,109 51,109 — — 51,109 Other borrowings 100,293 — 100,293 — 100,293 Accrued interest payable 1,423 1,423 — — 1,423 Subordinated deferrable interest debentures 64,842 — 45,864 — 45,864

Segment Reporting (Tables)

Segment Reporting (Tables)	6 Months Ended
	Jun. 30, 2015
Segment Reporting [Abstract]
Schedule of Financial Information with Respect to Company's Reportable Business Segments	The following tables present selected financial information with respect to the Company’s reportable business segments for the three months ended June 30, 2015 and 2014: Three Months Ended June 30, 2015 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 36,806 $ 1,979 $ 1,179 $ 724 $ 40,688 Provision for loan losses 2,456 200 — — 2,656 Noninterest income 9,262 9,095 383 1,886 20,626 Noninterest expense Salaries and employee benefits 15,675 5,592 99 1,099 22,465 Equipment and occupancy expenses 4,376 396 1 36 4,809 Data processing and telecommunications expenses 3,913 279 20 2 4,214 Other expenses 24,048 1,150 19 159 25,376 Total noninterest expense 48,012 7,417 139 1,296 56,864 Income (loss) before income tax expense (benefit) (4,400 ) 3,457 1,423 1,314 1,794 Income tax expense (benefit) (1,682 ) 1,210 498 460 486 Net income (loss) (2,718 ) 2,247 925 854 1,308 Less preferred stock dividends — — — — — Net income (loss) available to common shareholders $ (2,718 ) $ 2,247 $ 925 $ 854 $ 1,308 Total assets $ 4,823,335 $ 235,067 $ 82,913 $ 64,419 $ 5,205,734 Intangible assets $ 106,556 $ — $ — $ — $ 106,556 Three Months Ended June 30, 2014 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 33,345 $ 972 $ 367 $ 580 $ 35,264 Provision for loan losses 1,365 — — — 1,365 Noninterest income 7,449 6,836 166 1,368 15,819 Noninterest expense Salaries and employee benefits 12,509 3,881 56 496 16,942 Equipment and occupancy expenses 3,752 300 — 19 4,071 Data processing and telecommunications expenses 3,590 329 14 7 3,940 Other expenses 10,753 1,233 79 300 12,365 Total noninterest expense 30,604 5,743 149 822 37,318 Income before income tax expense 8,825 2,065 384 1,126 12,400 Income tax expense 3,019 723 134 394 4,270 Net income 5,806 1,342 250 732 8,130 Less preferred stock dividends — — — — — Net income available to common shareholders $ 5,806 $ 1,342 $ 250 $ 732 $ 8,130 Total assets $ 3,744,089 $ 131,275 $ 44,010 $ 53,761 $ 3,973,135 Intangible assets $ 68,715 $ — $ — $ — $ 68,715 The following tables present selected financial information with respect to the Company’s reportable business segments for the six months ended June 30, 2015 and 2014: Six Months Ended June 30, 2015 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 72,645 $ 3,524 $ 2,014 $ 1,337 $ 79,520 Provision for loan losses 3,383 342 — — 3,725 Noninterest income 18,042 16,705 656 2,798 38,201 Noninterest expense Salaries and employee benefits 31,037 10,119 226 1,715 43,097 Equipment and occupancy expenses 8,520 776 3 64 9,363 Data processing and telecommunications expenses 7,924 491 53 6 8,474 Other expenses 34,404 2,082 55 216 36,757 Total noninterest expense 81,885 13,468 337 2,001 97,691 Income (loss) before income tax expense (benefit) 5,419 6,419 2,333 2,134 16,305 Income tax expense (benefit) 1,423 2,246 817 747 5,233 Net income (loss) 3,996 4,173 1,516 1,387 11,072 Less preferred stock dividends — — — — — Net income (loss) available to common shareholders $ 3,996 $ 4,173 $ 1,516 $ 1,387 $ 11,072 Six Months Ended June 30, 2014 Banking Division Retail Mortgage Warehouse SBA Division Total (Dollars in Thousands) Net interest income $ 66,273 $ 1,886 $ 553 $ 1,036 $ 69,748 Provision for loan losses 3,091 — — — 3,091 Noninterest income 14,810 11,916 250 1,597 28,573 Noninterest expense Salaries and employee benefits 26,086 7,403 102 745 34,336 Equipment and occupancy expenses 7,501 601 1 32 8,135 Data processing and telecommunications expenses 6,916 443 22 13 7,394 Other expenses 18,133 2,008 119 432 20,692 Total noninterest expense 58,636 10,455 244 1,222 70,557 Income before income tax expense 19,356 3,347 559 1,411 24,673 Income tax expense 6,332 1,171 196 494 8,193 Net income 13,024 2,176 363 917 16,480 Less preferred stock dividends 286 — — — 286 Net income available to common shareholders $ 12,738 $ 2,176 $ 363 $ 917 $ 16,194

Basis of Presentation and Acc35

Basis of Presentation and Accounting Policies - Additional Information (Detail)	Jun. 30, 2015Branch
Accounting Policies [Abstract]
Number of retail branches operated	103

Business Combinations - Additio

Business Combinations - Additional Information (Detail)	Jun. 12, 2015USD ($)Branches	May. 22, 2015USD ($)Location	Jun. 30, 2014USD ($)Locationshares	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Dec. 31, 2014USD ($)
Business Acquisition [Line Items]
Goodwill, excess of the merger consideration over fair value of net assets			$ 58,903,000	$ 58,903,000	$ 87,367,000	$ 63,547,000
Issuance of common stock, fair value				34,474,000
Coastal Bank [Member]
Business Acquisition [Line Items]
Number of banking locations | Location			6
Coastal Bankshares, Inc. [Member]
Business Acquisition [Line Items]
Net of loans acquired			$ 16,700,000	16,700,000
Net of loans acquired			11,882,000	11,882,000
Goodwill, excess of the merger consideration over fair value of net assets			28,093,000	28,093,000	28,100,000
Fair value of loans acquired			$ 279,400,000	$ 279,400,000
Estimated discount			5.64%	5.64%
Impaired loans			$ 29,300,000	$ 29,300,000	3,282,000
Shares to receive for each share of Prosperity common stock pursuant to the merger agreement			0.4671	0.4671
Issuance of common stock, shares | shares			1,598,998
Issuance of common stock, fair value			$ 34,500,000
Coastal Bankshares, Inc. [Member] | As Recorded by Acquired Bank [Member]
Business Acquisition [Line Items]
Cash paid as deposit premium			2,796,000
Net of loans acquired			11,882,000	$ 11,882,000
Purchase price			$ 37,270,000
Issuance of common stock, shares | shares			1,598,998
Coastal Bankshares, Inc. [Member] | Warrant [Member]
Business Acquisition [Line Items]
Cash in exchange for outstanding warrants			$ 2,800,000	$ 2,800,000
Merchants and Southern Banks of Florida [Member]
Business Acquisition [Line Items]
Net of loans acquired		$ 8,500,000
Net of loans acquired		10,934,000
Goodwill, excess of the merger consideration over fair value of net assets		12,090,000			12,100,000
Fair value of loans acquired		191,500,000
Purchase price		$ 50,000,000
Number of banking locations | Location		13
Estimated discount		4.25%
Impaired loans		$ 17,400,000			3,254,000
Merchants and Southern Banks of Florida [Member] | As Recorded by Acquired Bank [Member]
Business Acquisition [Line Items]
Cash paid as deposit premium		50,000,000
Net of loans acquired		14,614,000
Purchase price		$ 50,000,000
Bank of America [Member]
Business Acquisition [Line Items]
Number of branches | Branches	18
Deposit premium	3.00%
Net of loans acquired	$ 4,400,000
Cash paid as deposit premium	$ 20,000,000
Deposits period	15 days
Net of loans acquired	$ 11,408,000
Goodwill, excess of the merger consideration over fair value of net assets	11,076,000				$ 11,100,000
Fair value of loans acquired	4,400,000
Bank of America [Member] | As Recorded by Acquired Bank [Member]
Business Acquisition [Line Items]
Cash paid as deposit premium	20,002,000
Net of loans acquired	10,348,000
Purchase price	$ 20,002,000

Business Combinations - Estimat

Business Combinations - Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($)	Jun. 12, 2015	May. 22, 2015	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash value of bank owned life insurance			$ 57,864,000	$ 59,552,000	$ 58,867,000
Deposits:
Federal funds purchased and securities sold under agreements to repurchase				13,400,000
Goodwill			58,903,000	87,367,000	$ 63,547,000
Bank of America [Member]
Assets
Cash and cash equivalents	$ 630,220,000
Loans	4,363,000
Premises and equipment	11,408,000
Intangible assets	7,651,000
Other assets	126,000
Total assets	653,768,000
Deposits:
Noninterest-bearing	149,854,000
Interest-bearing	494,895,000
Total deposits	644,749,000
Other liabilities	93,000
Total liabilities	644,842,000
Net identifiable assets acquired over (under) liabilities assumed	8,926,000
Goodwill	11,076,000			11,100,000
Net assets acquired over (under) liabilities assumed	20,002,000
Consideration:
Cash exchanged for shares	20,000,000
Bank of America [Member] | As Recorded by Acquired Bank [Member]
Assets
Cash and cash equivalents	630,220,000
Loans	4,363,000
Premises and equipment	10,348,000
Other assets	126,000
Total assets	645,057,000
Deposits:
Noninterest-bearing	149,854,000
Interest-bearing	495,110,000
Total deposits	644,964,000
Other liabilities	93,000
Total liabilities	645,057,000
Consideration:
Cash exchanged for shares	20,002,000
Fair value of total consideration transferred	20,002,000
Bank of America [Member] | Initial Fair Value Adjustments [Member]
Assets
Premises and equipment	1,060,000
Intangible assets	7,651,000
Total assets	8,711,000
Deposits:
Interest-bearing	(215,000)
Total deposits	(215,000)
Total liabilities	(215,000)
Net identifiable assets acquired over (under) liabilities assumed	8,926,000
Goodwill	11,076,000
Net assets acquired over (under) liabilities assumed	$ 20,002,000
Merchants and Southern Banks of Florida [Member]
Assets
Cash and cash equivalents		$ 7,527,000
Federal funds sold and interest-bearing balances		106,188,000
Investment securities		163,868,000
Other investments		872,000
Loans		191,455,000
Loans, net		191,455,000
Other real estate owned		2,967,000
Premises and equipment		10,934,000
Intangible assets		4,577,000
Other assets		4,668,000
Total assets		493,056,000
Deposits:
Noninterest-bearing		121,708,000
Interest-bearing		286,112,000
Total deposits		407,820,000
Federal funds purchased and securities sold under agreements to repurchase		41,588,000
Other liabilities		2,232,000
Subordinated deferrable interest debentures		3,506,000
Total liabilities		455,146,000
Net identifiable assets acquired over (under) liabilities assumed		37,910,000
Goodwill		12,090,000		12,100,000
Net assets acquired over (under) liabilities assumed		50,000,000
Consideration:
Fair value of total consideration transferred		50,000,000
Merchants and Southern Banks of Florida [Member] | As Recorded by Acquired Bank [Member]
Assets
Cash and cash equivalents		7,527,000
Federal funds sold and interest-bearing balances		106,188,000
Investment securities		164,421,000
Other investments		872,000
Loans		199,955,000
Less allowance for loan losses		(3,354,000)
Loans, net		196,601,000
Other real estate owned		4,082,000
Premises and equipment		14,614,000
Other assets		2,333,000
Total assets		496,638,000
Deposits:
Noninterest-bearing		121,708,000
Interest-bearing		286,112,000
Total deposits		407,820,000
Federal funds purchased and securities sold under agreements to repurchase		41,588,000
Other liabilities		2,151,000
Subordinated deferrable interest debentures		6,186,000
Total liabilities		457,745,000
Net identifiable assets acquired over (under) liabilities assumed		38,893,000
Net assets acquired over (under) liabilities assumed		38,893,000
Consideration:
Cash exchanged for shares		50,000,000
Fair value of total consideration transferred		50,000,000
Merchants and Southern Banks of Florida [Member] | Initial Fair Value Adjustments [Member]
Assets
Investment securities		(553,000)
Loans		(8,500,000)
Less allowance for loan losses		3,354,000
Loans, net		(5,146,000)
Other real estate owned		(1,115,000)
Premises and equipment		(3,680,000)
Intangible assets		4,577,000
Other assets		2,335,000
Total assets		(3,582,000)
Deposits:
Other liabilities		81,000
Subordinated deferrable interest debentures		(2,680,000)
Total liabilities		(2,599,000)
Net identifiable assets acquired over (under) liabilities assumed		(983,000)
Goodwill		12,090,000
Net assets acquired over (under) liabilities assumed		$ 11,107,000
Coastal Bankshares, Inc. [Member]
Assets
Cash and cash equivalents			3,895,000
Federal funds sold and interest-bearing balances			15,923,000
Investment securities			66,766,000
Other investments			975,000
Mortgage loans held for sale			7,288,000
Loans			279,441,000
Loans, net			279,441,000
Other real estate owned			8,057,000
Premises and equipment			11,882,000
Intangible assets			4,542,000
Cash value of bank owned life insurance			7,812,000
Other assets			14,297,000
Total assets			420,878,000
Deposits:
Noninterest-bearing			80,012,000
Interest-bearing			289,012,000
Total deposits			369,024,000
Federal funds purchased and securities sold under agreements to repurchase			5,428,000
Other borrowings			22,005,000
Other liabilities			6,192,000
Subordinated deferrable interest debentures			9,052,000
Total liabilities			411,701,000
Net identifiable assets acquired over (under) liabilities assumed			9,177,000
Goodwill			28,093,000	$ 28,100,000
Net assets acquired over (under) liabilities assumed			$ 37,270,000
Consideration:
Ameris Bancorp common shares issued			1,598,998
Coastal Bankshares, Inc. [Member] | As Recorded by Acquired Bank [Member]
Assets
Cash and cash equivalents			$ 3,895,000
Federal funds sold and interest-bearing balances			15,923,000
Investment securities			67,266,000
Other investments			975,000
Mortgage loans held for sale			7,288,000
Loans			296,141,000
Less allowance for loan losses			(3,218,000)
Loans, net			292,923,000
Other real estate owned			14,992,000
Premises and equipment			11,882,000
Intangible assets			507,000
Cash value of bank owned life insurance			7,812,000
Other assets			14,898,000
Total assets			438,361,000
Deposits:
Noninterest-bearing			80,012,000
Interest-bearing			289,012,000
Total deposits			369,024,000
Federal funds purchased and securities sold under agreements to repurchase			5,428,000
Other borrowings			22,005,000
Other liabilities			6,192,000
Subordinated deferrable interest debentures			15,465,000
Total liabilities			418,114,000
Net identifiable assets acquired over (under) liabilities assumed			20,247,000
Net assets acquired over (under) liabilities assumed			$ 20,247,000
Consideration:
Ameris Bancorp common shares issued			1,598,998
Purchase price per share of the Company's common stock			$ 21.56
Company common stock issued			$ 34,474,000
Cash exchanged for shares			2,796,000
Fair value of total consideration transferred			37,270,000
Coastal Bankshares, Inc. [Member] | Initial Fair Value Adjustments [Member]
Assets
Investment securities			(500,000)
Loans			(16,700,000)
Less allowance for loan losses			3,218,000
Loans, net			(13,482,000)
Other real estate owned			(3,528,000)
Intangible assets			4,266,000
Total assets			(13,244,000)
Deposits:
Subordinated deferrable interest debentures			(6,413,000)
Total liabilities			(6,413,000)
Net identifiable assets acquired over (under) liabilities assumed			(6,831,000)
Goodwill			23,854,000
Net assets acquired over (under) liabilities assumed			17,023,000
Coastal Bankshares, Inc. [Member] | Subsequent Fair Value Adjustments [Member]
Assets
Other real estate owned			(3,407,000)
Intangible assets			(231,000)
Other assets			(601,000)
Total assets			(4,239,000)
Deposits:
Net identifiable assets acquired over (under) liabilities assumed			(4,239,000)
Goodwill			$ 4,239,000

Business Combinations - Summary

Business Combinations - Summary of Contractually Required Principal and Interest Cash Payment of the Loans as of Acquisition Date for Purchased Credit Impaired Loans (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	May. 22, 2015	Jun. 30, 2014
Merchants and Southern Banks of Florida [Member]
Business Acquisition [Line Items]
Contractually required principal and interest	$ 24,446
Non-accretable difference	(3,814)
Cash flows expected to be collected	20,632
Accretable yield	(3,254)	$ (17,400)
Total purchased credit-impaired loans acquired	17,378
Coastal Bankshares, Inc. [Member]
Business Acquisition [Line Items]
Contractually required principal and interest	38,194
Non-accretable difference	(5,632)
Cash flows expected to be collected	32,562
Accretable yield	(3,282)		$ (29,300)
Total purchased credit-impaired loans acquired	$ 29,280

Business Combinations - Summa39

Business Combinations - Summary of Acquired Loans (Detail) - Merchants and Southern Banks of Florida [Member] $ in Thousands	Mar. 22, 2015USD ($)
Business Acquisition [Line Items]
Acquired receivables subject to ASC 310-30, fair value at acquisition	$ 17,378
Acquired receivables subject to ASC 310-30, gross contractual amounts	24,446
Acquired receivables subject to ASC 310-30, cashs flows not expected to be collected	3,814
Acquired receivables not subject to ASC 310-30, fair value at acquisition	174,077
Acquired receivables not subject to ASC 310-30, gross contractual amounts	$ 178,763

Business Combinations - Pro For

Business Combinations - Pro Forma Information of Acquisitions (Detail) - Coastal Bankshares, Inc. [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Net interest income and noninterest income	$ 63,259	$ 60,212	$ 123,308	$ 116,454
Net income (loss)	(128)	6,963	10,739	17,163
Net income (loss) available to common stockholders	$ (128)	$ 6,963	$ 10,739	$ 16,877
Income (loss) per common share available to common stockholders - basic	$ 0	$ 0.26	$ 0.34	$ 0.63
Income (loss) per common share available to common stockholders - diluted	$ 0	$ 0.26	$ 0.34	$ 0.62
Average number of shares outstanding, basic	32,184	26,780	31,318	26,762
Average number of shares outstanding, diluted	32,520	27,232	31,653	27,214

Business Combinations - Rollfor

Business Combinations - Rollforward of Acquired Non-Covered Loans (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Purchased Non Covered Loans [Line Items]
Balance, beginning of year	$ 15,578	$ 25,493	$ 25,493
Accretion	6,251	15,432	22,188
Transfers to purchased non-covered other real estate owned	(2,039)	(1,425)
Transfer from covered loans due to loss-share expiration	84
Balance, end of year	12,060	15,911	15,578
Non-Covered Loans [Member]
Purchased Non Covered Loans [Line Items]
Balance, beginning of year	674,239	448,753	448,753
Charge-offs, net of recoveries	(470)		(84)
Additions due to acquisitions	195,818	279,441	279,441
Accretion	5,388	3,635	9,745
Transfers to purchased non-covered other real estate owned	(2,039)	(1,425)	(4,160)
Transfer from covered loans due to loss-share expiration	15,462		15,475
Payments received	(80,085)	(28,273)	(74,931)
Balance, end of year	$ 808,313	$ 702,131	$ 674,239

Business Combinations - Schedul

Business Combinations - Schedule of Changes in Accretable Discounts Related Acquired Non-Covered Loans (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of year	$ 15,578	$ 25,493	$ 25,493
Accretion	(6,251)	(15,432)	(22,188)
Transfers between non-accretable and accretable discounts, net	2,817	5,850	12,273
Balance, end of year	12,060	15,911	15,578
Non-Covered Loans [Member]
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of year	674,239	448,753	448,753
Additions due to acquisitions	195,818	279,441	279,441
Accretion	(5,388)	(3,635)	(9,745)
Balance, end of year	808,313	702,131	674,239
Non-Covered Loans [Member] | Discount Accretion [Member]
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of year	25,716	26,189	26,189
Additions due to acquisitions	4,686	7,799	7,799
Accretion	(5,388)	(3,635)	(9,745)
Accretable discounts removed due to charge-offs	(1,685)
Transfers between non-accretable and accretable discounts, net	(1,007)	1,968	1,473
Balance, end of year	$ 22,322	$ 32,321	$ 25,716

Investment Securities - Amortiz

Investment Securities - Amortized Cost and Estimated Fair Value of Investment Securities Available for Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	$ 858,010	$ 533,219	$ 530,456
Gross Unrealized Gains	8,437	10,697	8,855
Gross Unrealized Losses	(4,293)	(2,111)	(3,681)
Fair Value	862,154	541,805	535,630
US Government Agencies [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	14,956	14,953	14,950
Gross Unrealized Losses	(210)	(275)	(505)
Fair Value	14,746	14,678	14,445
State, County and Municipal Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	165,070	137,873	143,507
Gross Unrealized Gains	3,305	3,935	3,136
Gross Unrealized Losses	(1,003)	(433)	(863)
Fair Value	167,372	141,375	145,780
Corporate Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	12,710	10,812	10,805
Gross Unrealized Gains	184	228	284
Gross Unrealized Losses	(58)		(131)
Fair Value	12,836	11,040	10,958
Mortgage-Backed Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	665,274	369,581	361,194
Gross Unrealized Gains	4,948	6,534	5,435
Gross Unrealized Losses	(3,022)	(1,403)	(2,182)
Fair Value	$ 667,200	$ 374,712	$ 364,447

Investment Securities - Amort44

Investment Securities - Amortized Cost and Fair Value of Available for Sale Securities by Contractual Maturity (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-Sale Securities [Line Items]
Due in one year or less, Amortized Cost	$ 7,960
Due from one year to five years, Amortized Cost	47,037
Due from five to ten years, Amortized Cost	66,573
Due after ten years, Amortized Cost	71,166
Amortized Cost	858,010	$ 533,219	$ 530,456
Due in one year or less,Fair Value	7,999
Due from one year to five years, Fair Value	48,246
Due from five to ten years, Fair Value	67,686
Due after ten years, Fair Value	71,023
Mortgage-backed securities, Fair Value	667,200
Total Fair Value	862,154	541,805	535,630
Mortgage-Backed Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	665,274	369,581	361,194
Total Fair Value	$ 667,200	$ 374,712	$ 364,447

Investment Securities - Additio

Investment Securities - Additional Information (Detail) $ in Millions	Jun. 30, 2015USD ($)SecuritiesMortgages	Dec. 31, 2014USD ($)	Jun. 30, 2014USD ($)
Schedule of Available-for-Sale Securities [Line Items]
Securities, carrying value | $	$ 323.9	$ 286.6	$ 228.3
Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Number of securities, Total	443
Number of securities in unrealized loss position	163
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-Sale Securities [Line Items]
Number of securities in unrealized loss position | Mortgages	114
State, County and Municipal Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Number of securities in unrealized loss position	40
U.S. Government Sponsored Agencies [Member]
Schedule of Available-for-Sale Securities [Line Items]
Number of securities in unrealized loss position	3
Corporate Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Number of securities in unrealized loss position	6

Investment Securities - Schedul

Investment Securities - Schedule of Gross Unrealized Losses and Fair Value of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Schedule of Available-for-Sale Securities [Line Items]
Less Than 12 Months, Fair Value	$ 305,435	$ 51,798	$ 29,195
12 Months or More, Fair Value	46,004	81,155	99,632
Total Fair Value	351,439	132,953	128,827
Less Than 12 Months, Unrealized Losses	(2,922)	(291)	(100)
12 Months or More, Unrealized Losses	(1,371)	(1,820)	(3,581)
Total Unrealized Losses	(4,293)	(2,111)	(3,681)
US Government Agencies [Member]
Schedule of Available-for-Sale Securities [Line Items]
Less Than 12 Months, Fair Value	9,818
12 Months or More, Fair Value	4,928	14,678	14,445
Total Fair Value	14,746	14,678	14,445
Less Than 12 Months, Unrealized Losses	(138)
12 Months or More, Unrealized Losses	(72)	(275)	(505)
Total Unrealized Losses	(210)	(275)	(505)
State, County and Municipal Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Less Than 12 Months, Fair Value	50,294	15,038	4,088
12 Months or More, Fair Value	10,404	19,665	29,203
Total Fair Value	60,698	34,703	33,291
Less Than 12 Months, Unrealized Losses	(680)	(70)	(35)
12 Months or More, Unrealized Losses	(323)	(363)	(828)
Total Unrealized Losses	(1,003)	(433)	(863)
Corporate Debt Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Less Than 12 Months, Fair Value	7,149
12 Months or More, Fair Value			4,945
Total Fair Value	7,149		4,945
Less Than 12 Months, Unrealized Losses	(58)
12 Months or More, Unrealized Losses			(131)
Total Unrealized Losses	(58)		(131)
Mortgage-Backed Securities [Member]
Schedule of Available-for-Sale Securities [Line Items]
Less Than 12 Months, Fair Value	238,174	36,760	25,107
12 Months or More, Fair Value	30,672	46,812	51,039
Total Fair Value	268,846	83,572	76,146
Less Than 12 Months, Unrealized Losses	(2,046)	(221)	(65)
12 Months or More, Unrealized Losses	(976)	(1,182)	(2,117)
Total Unrealized Losses	$ (3,022)	$ (1,403)	$ (2,182)

Investment Securities - Summary

Investment Securities - Summary of Sales Activities in the Company's Investment Securities Available for Sale (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Amortized Cost and Fair Value Debt Securities [Abstract]
Gross gains on sales of securities	$ 41	$ 8	$ 141
Gross losses on sales of securities	(19)	(2)	(3)
Net realized gains on sales of securities available for sale	22	6	138
Sales proceeds	$ 30,113	$ 69,768	$ 94,051

Loans - Schedule of Accounts No

Loans - Schedule of Accounts Notes Loans and Financial Receivables (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	$ 2,171,600	$ 1,889,881	$ 1,770,059
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	537,201	456,106	422,731
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	30,080	30,782	31,902
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and deferred loan fees receivables	$ 15,903	$ 14,308	$ 11,492

Loans - Additional Information

Loans - Additional Information (Detail)	6 Months Ended		12 Months Ended
	Jun. 30, 2015USD ($)RiskGrades	Jun. 30, 2014USD ($)	Dec. 31, 2014USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchased non-covered loans	$ 808,300,000	$ 702,100,000	$ 674,200,000
Purchased loan pools not acquired in bank acquisitions or FDIC-assisted transactions	268,984,000	0	0
Residential mortgages on properties principal balances	263,800,000
Purchase premium paid at acquisition	5,200,000
Covered loans acquired in FDIC-assisted transactions	$ 209,600,000	331,300,000	271,300,000
Number of risk grading system category | RiskGrades	9
Troubled debt restructurings	$ 14,000,000	21,100,000	15,300,000
Troubled debt restructurings, previous charge-offs	1,600,000	3,000,000	2,200,000
Allowance for loan losses allocated to troubled debt restructurings	210,000	398,000	231,000
Commitments to lend additional funds	0
Troubled debt restructurings, excluding purchased non-covered and covered loans principal balances	782,000	1,700,000
Allowance for loan losses adjustments	0	0
Troubled debt restructurings principal balances	2,200,000	130,000
Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified loans	54,800,000	8,400,000
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	28,871,000	46,138,000	35,412,000
Modified loans	21,480,000	42,315,000	33,383,000
Troubled debt restructurings	19,600,000	23,700,000	24,600,000
Troubled debt restructurings, previous charge-offs	42,000	1,500,000	1,800,000
Commitments to lend additional funds	0
Allowance for loan losses adjustments	0	0
Troubled debt restructurings principal balances	297,000	1,100,000
Troubled debt restructuring loans modifications	1,212,000	2,577,000
Covered Loans [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified loans	3,918,000	9,456,000	8,534,000
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	17,444,000	15,770,000	18,249,000
Modified loans	25,182,000	27,044,000	32,022,000
Troubled debt restructurings	6,792,000	0	1,212,000
Troubled debt restructurings, previous charge-offs	632,000		29,000
Commitments to lend additional funds	0
Allowance for loan losses adjustments	0
Troubled debt restructurings principal balances	65,000	0
Troubled debt restructuring loans modifications	1,000,000
Purchased Non-Covered Loans [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Modified loans	6,214,000	$ 9,087,000	$ 10,347,000
Transferred From Covered Loan To Purchased Non Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructuring loans modifications	$ 4,800,000
Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Past due loan accrued	90 days
Nonaccrual loans	$ 100,000
Loan-to-value ratio	110.00%
Minimum [Member] | Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 200,000
Minimum [Member] | Independent Third Party Loan Review [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan relationship with risk ratings reviewed annually	250,000
Amount of loan relationship with risk ratings reviewed annually	250,000
Minimum [Member] | Internal Loan Review Department [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amount of loan relationship with risk ratings reviewed annually	$ 1,000,000

Loans - Summary of Purchased No

Loans - Summary of Purchased Non-Covered Loans According to Major Loan Type (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	$ 808,313	$ 674,239	$ 702,131
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	808,313	674,239	702,131
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	45,337	38,041	41,583
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	75,302	58,362	64,084
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	404,588	306,706	311,748
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	276,798	266,342	278,451
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total non-covered loans	$ 6,288	$ 4,788	$ 6,265

Loans - Summary of Covered Loan

Loans - Summary of Covered Loans According to Loan Type (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	$ 209,598	$ 271,279	$ 331,250
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	17,666	21,467	25,209
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	15,002	23,447	31,600
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	111,772	147,627	188,643
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	64,982	78,520	85,518
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Covered Loans	$ 176	$ 218	$ 280

Loans - Summary of Financial Re

Loans - Summary of Financial Receivable Nonaccrual Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Excluding Purchased Non-Covered and Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 20,740	$ 21,728	$ 22,111
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	4,067	1,672	1,596
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,594	3,774	3,452
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	8,938	8,141	8,831
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	5,650	7,663	7,795
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	491	478	437
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	17,444	18,249	15,770
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	309	175	143
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	1,483	1,119	2,273
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	9,634	10,242	6,647
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	5,930	6,644	6,658
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	88	69	49
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	28,871	35,412	46,138
Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	7,948	8,541	12,254
Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	3,120	7,601	8,028
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	13,997	12,584	17,027
Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	3,712	6,595	8,702
Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Nonaccrual loans	$ 94	$ 91	$ 127

Loans - Summary of Excluding Pu

Loans - Summary of Excluding Purchased Non-Covered and Covered Past Due Financial Receivables (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 2,171,600	$ 1,889,881	$ 1,770,059
Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	54,800		8,400
Commercial, Financial & Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	537,201	456,106	422,731
Consumer Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	30,080	30,782	31,902
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	15,903	14,308	11,492
Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	33,021	33,107	42,459
Current Loans	2,138,579	1,856,774	1,727,600
Total Loans	2,171,600	1,889,881	1,770,059
Loans 90 Days or More Past Due and Still Accruing		1
Excluding Purchased Non-Covered and Covered Loans [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	9,427	9,728	15,895
Excluding Purchased Non-Covered and Covered Loans [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	6,111	3,646	7,127
Excluding Purchased Non-Covered and Covered Loans [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	17,483	19,733	19,437
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	5,619	2,710	3,223
Current Loans	367,583	316,944	301,365
Total Loans	373,202	319,654	304,588
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	840	900	1,180
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	888	233	966
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	3,891	1,577	1,077
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	3,111	5,035	7,687
Current Loans	201,908	156,472	141,659
Total Loans	205,019	161,507	149,346
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,201	1,382	3,942
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	374	286	296
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,536	3,367	3,449
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	11,795	11,162	13,886
Current Loans	998,400	896,362	836,114
Total Loans	1,010,195	907,524	850,000
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,958	2,859	4,622
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	2,823	635	1,860
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	7,014	7,668	7,404
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	11,811	13,042	16,832
Current Loans	525,390	443,064	405,899
Total Loans	537,201	456,106	422,731
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	5,135	3,953	5,806
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,949	2,334	3,829
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	4,727	6,755	7,197
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	685	1,158	831
Current Loans	29,395	29,624	31,071
Total Loans	30,080	30,782	31,902
Loans 90 Days or More Past Due and Still Accruing		1
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	293	634	345
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	77	158	176
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	315	366	310
Excluding Purchased Non-Covered and Covered Loans [Member] | Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current Loans	15,903	14,308	11,492
Total Loans	$ 15,903	$ 14,308	$ 11,492

Loans - Summary of Non-Covered

Loans - Summary of Non-Covered Past Due Financial Receivables (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	$ 2,171,600	$ 1,889,881	$ 1,770,059
Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	54,800		8,400
Commercial, Financial & Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	537,201	456,106	422,731
Consumer Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans	30,080	30,782	31,902
Purchased Non-Covered Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	25,182	32,022	27,044
Current Loans	783,131	642,217	675,087
Total Loans	808,313	674,239	702,131
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	6,214	10,347	9,087
Purchased Non-Covered Loans [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	3,225	4,420	2,811
Purchased Non-Covered Loans [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	15,743	17,255	15,146
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,303	726	306
Current Loans	44,034	37,315	41,277
Total Loans	45,337	38,041	41,583
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due		461	137
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,101	90	26
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	202	175	143
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,271	3,642	3,045
Current Loans	74,031	54,720	61,039
Total Loans	75,302	58,362	64,084
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	245	790	712
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due		1,735	168
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,026	1,117	2,165
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	11,901	12,830	9,515
Current Loans	392,687	293,876	302,233
Total Loans	404,588	306,706	311,748
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	2,115	2,107	1,263
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	724	1,194	1,605
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	9,062	9,529	6,647
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	10,617	14,677	14,079
Current Loans	266,181	251,665	264,372
Total Loans	276,798	266,342	278,451
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	3,848	6,907	6,952
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	1,400	1,401	983
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	5,369	6,369	6,144
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	90	147	99
Current Loans	6,198	4,641	6,166
Total Loans	6,288	4,788	6,265
Loans 90 Days or More Past Due and Still Accruing	0	0	0
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 30-59 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	6	82	23
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 60-89 Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due			29
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 90 or More Days Past Due [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Loans Past Due	$ 84	$ 65	$ 47

Loans - Summary of Covered Past

Loans - Summary of Covered Past Due Financial Receivables (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 2,171,600	$ 1,889,881	$ 1,770,059
Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	54,800		8,400
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	537,201	456,106	422,731
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	30,080	30,782	31,902
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	21,480	33,383	42,315
Current Loans	188,118	237,896	288,935
Total Loans	209,598	271,279	331,250
Loans 90 Days or More Past Due and Still Accruing	143	714
Covered Loans [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	3,918	8,534	9,456
Covered Loans [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	1,279	2,810	1,804
Covered Loans [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	16,283	22,039	31,055
Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,147	2,465	7,392
Current Loans	15,519	19,002	17,817
Total Loans	17,666	21,467	25,209
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	237	451	16
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	240	136	467
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	1,670	1,878	6,909
Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	3,368	7,167	8,718
Current Loans	11,634	16,280	22,882
Total Loans	15,002	23,447	31,600
Loans 90 Days or More Past Due and Still Accruing	143
Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	292	238	551
Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	31	226	459
Covered Loans [Member] | Real Estate - Construction & Development [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	3,045	6,703	7,708
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	10,176	13,568	16,981
Current Loans	101,596	134,059	171,662
Total Loans	111,772	147,627	188,643
Loans 90 Days or More Past Due and Still Accruing		714
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	699	4,371	6,399
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	81	1,486	139
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	9,396	7,711	10,443
Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	5,739	10,082	9,119
Current Loans	59,243	68,438	76,399
Total Loans	64,982	78,520	85,518
Covered Loans [Member] | Real Estate - Residential [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,690	3,464	2,490
Covered Loans [Member] | Real Estate - Residential [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	927	962	690
Covered Loans [Member] | Real Estate - Residential [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	2,122	5,656	5,939
Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	50	101	105
Current Loans	126	117	175
Total Loans	176	218	280
Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 30-59 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due		10
Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 60-89 Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due			49
Covered Loans [Member] | Consumer Installment Loans [Member] | Loans 90 or More Days Past Due [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans Past Due	$ 50	$ 91	$ 56

Loans - Summary of Impaired Fin

Loans - Summary of Impaired Financial Receivables Excluding Purchased Non-Covered and Covered Loans (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings not included above	$ 14,000	$ 15,300	$ 21,100	$ 14,000	$ 21,100	$ 15,300
Excluding Purchased Non-Covered and Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income recognized on impaired loans	192	237	1,133	344	1,423	1,991
Foregone interest income on impaired loans	311	323	375	629	815	1,491
Nonaccrual loans	20,740	21,728	22,111	20,740	22,111	21,728
Troubled debt restructurings not included above	12,467	12,759	17,337	12,467	17,337	12,759
Total impaired loans	$ 33,207	$ 34,487	$ 39,448	$ 33,207	$ 39,448	$ 34,487

Loans - Analysis of Information

Loans - Analysis of Information Pertaining to Impaired Loans, Excluding Purchased Non-Covered and Covered Loans (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	$ 3,458,495	$ 2,835,399	$ 2,803,440	$ 3,458,495	$ 2,803,440	$ 2,835,399
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	373,202	319,654	304,588	373,202	304,588	319,654
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	205,019	161,507	149,346	205,019	149,346	161,507
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	1,010,195	907,524	850,000	1,010,195	850,000	907,524
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	537,201	456,106	422,731	537,201	422,731	456,106
Excluding Purchased Non-Covered and Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	40,262	45,415	50,900	40,262	50,900	45,415
Recorded Investment With No Allowance	7,555	8,935		7,555		8,935
Recorded Investment With Allowance	25,652	25,552	39,448	25,652	39,448	25,552
Total impaired loans	33,207	34,487	39,448	33,207	39,448	34,487
Related Allowance	3,979	4,008	3,619	3,979	3,619	4,008
Average Recorded Investment	33,491	37,272	42,513	33,819	43,814	41,197
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	6,004	3,387	3,398	6,004	3,398	3,387
Recorded Investment With No Allowance	442	6		442		6
Recorded Investment With Allowance	3,903	1,956	1,852	3,903	1,852	1,956
Total impaired loans	4,345	1,962	1,852	4,345	1,852	1,962
Related Allowance	458	395	298	458	298	395
Average Recorded Investment	2,819	2,457	2,786	2,533	3,397	3,021
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	3,765	8,325	9,336	3,765	9,336	8,325
Recorded Investment With No Allowance		448				448
Recorded Investment With Allowance	2,416	4,005	5,532	2,416	5,532	4,005
Total impaired loans	2,416	4,453	5,532	2,416	5,532	4,453
Related Allowance	445	771	798	445	798	771
Average Recorded Investment	3,245	4,703	5,783	3,648	5,811	5,368
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	18,117	17,514	19,215	18,117	19,215	17,514
Recorded Investment With No Allowance	5,960	4,967		5,960		4,967
Recorded Investment With Allowance	9,595	9,651	16,421	9,595	16,421	9,651
Total impaired loans	15,555	14,618	16,421	15,555	16,421	14,618
Related Allowance	1,243	1,859	1,629	1,243	1,629	1,859
Average Recorded Investment	15,378	15,341	16,851	15,125	16,394	15,972
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	11,743	15,571	18,313	11,743	18,313	15,571
Recorded Investment With No Allowance	1,153	3,514		1,153		3,514
Recorded Investment With Allowance	9,199	9,407	15,131	9,199	15,131	9,407
Total impaired loans	10,352	12,921	15,131	10,352	15,131	12,921
Related Allowance	1,825	974	884	1,825	884	974
Average Recorded Investment	11,555	14,244	16,563	12,006	17,698	16,317
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	633	618	638	633	638	618
Recorded Investment With Allowance	539	533	512	539	512	533
Total impaired loans	539	533	512	539	512	533
Related Allowance	8	9	10	8	10	9
Average Recorded Investment	$ 494	$ 527	$ 530	$ 507	$ 514	$ 519

Loans - Summary of Impaired F58

Loans - Summary of Impaired Financial Receivables (Summary of Purchased Non-Covered Impaired Loans) (Detail) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings not included above	$ 14,000,000	$ 15,300,000	$ 21,100,000	$ 14,000,000	$ 21,100,000	$ 15,300,000
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income recognized on impaired loans	143,000	64,000	41,000	161,000	41,000	132,000
Foregone interest income on impaired loans	451,000	521,000	426,000	923,000	652,000	1,759,000
Nonaccrual loans	17,444,000	18,249,000	15,770,000	17,444,000	15,770,000	18,249,000
Troubled debt restructurings not included above	6,792,000	1,212,000	0	6,792,000	0	1,212,000
Total impaired loans	$ 24,236,000	$ 19,461,000	$ 15,770,000	$ 24,236,000	$ 15,770,000	$ 19,461,000

Loans - Analysis of Informati59

Loans - Analysis of Information Pertaining to Purchased Non-Covered Impaired Loans (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	$ 3,458,495	$ 2,835,399	$ 2,803,440	$ 3,458,495	$ 2,803,440	$ 2,835,399
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	373,202	319,654	304,588	373,202	304,588	319,654
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	205,019	161,507	149,346	205,019	149,346	161,507
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	1,010,195	907,524	850,000	1,010,195	850,000	907,524
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	537,201	456,106	422,731	537,201	422,731	456,106
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	41,278	33,989	25,710	41,278	25,710	33,989
Recorded Investment With No Allowance	24,236	19,461	15,770	24,236	15,770	19,461
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	24,236	19,461	15,770	24,236	15,770	19,461
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	21,535	22,238	15,544	20,844	12,582	16,444
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	1,476	1,366	550	1,476	550	1,366
Recorded Investment With No Allowance	309	175	143	309	143	175
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	309	175	143	309	143	175
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	254	277	130	227	90	165
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	9,656	5,161	4,649	9,656	4,649	5,161
Recorded Investment With No Allowance	1,857	1,436	2,273	1,857	2,273	1,436
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	1,857	1,436	2,273	1,857	2,273	1,436
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	1,485	2,242	1,702	1,469	1,243	1,643
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	17,043	15,007	9,848	17,043	9,848	15,007
Recorded Investment With No Allowance	13,691	10,588	6,647	13,691	6,647	10,588
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	13,691	10,588	6,647	13,691	6,647	10,588
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	11,753	11,148	6,738	11,366	5,043	7,484
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	12,992	12,283	10,598	12,992	10,598	12,283
Recorded Investment With No Allowance	8,285	7,191	6,658	8,285	6,658	7,191
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	8,285	7,191	6,658	8,285	6,658	7,191
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	7,982	8,447	6,933	7,718	6,175	7,084
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	111	172	65	111	65	172
Recorded Investment With No Allowance	94	71	49	94	49	71
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	94	71	49	94	49	71
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	$ 61	$ 124	$ 41	$ 64	$ 31	$ 68

Loans - Summary of Impaired F60

Loans - Summary of Impaired Financial Receivables (Summary of Covered Impaired Loans) (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled debt restructurings not included above	$ 14,000	$ 15,300	$ 21,100	$ 14,000	$ 21,100	$ 15,300
Covered Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income recognized on impaired loans	219	443	796	431	1,193	2,057
Foregone interest income on impaired loans	409	571	843	947	1,892	3,123
Nonaccrual loans	28,871	35,412	46,138	28,871	46,138	35,412
Troubled debt restructurings not included above	17,500	22,619	9,221	17,500	9,221	22,619
Total impaired loans	$ 46,371	$ 58,031	$ 55,359	$ 46,371	$ 55,359	$ 58,031

Loans - Summary of Impaired F61

Loans - Summary of Impaired Financial Receivables (Analysis of Covered Impaired Loans) (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	$ 3,458,495	$ 2,835,399	$ 2,803,440	$ 3,458,495	$ 2,803,440	$ 2,835,399
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	373,202	319,654	304,588	373,202	304,588	319,654
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	205,019	161,507	149,346	205,019	149,346	161,507
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	1,010,195	907,524	850,000	1,010,195	850,000	907,524
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	537,201	456,106	422,731	537,201	422,731	456,106
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	99,932	95,967	77,392	99,932	77,392	95,967
Recorded Investment With No Allowance	46,371	58,031	67,241	46,371	67,241	58,031
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	46,371	58,031	67,241	46,371	67,241	58,031
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	55,179	60,036	74,899	56,129	80,397	72,253
Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	14,260	14,385	14,694	14,260	14,694	14,385
Recorded Investment With No Allowance	7,951	8,582	12,266	7,951	12,266	8,582
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	7,951	8,582	12,266	7,951	12,266	8,582
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	8,869	8,525	11,153	8,773	9,858	9,325
Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	29,895	27,289	12,921	29,895	12,921	27,289
Recorded Investment With No Allowance	5,953	10,638	11,048	5,953	11,048	10,638
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	5,953	10,638	11,048	5,953	11,048	10,638
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	7,819	11,279	14,541	8,757	15,706	13,935
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	37,426	31,309	27,742	37,426	27,742	31,309
Recorded Investment With No Allowance	17,970	20,663	24,007	17,970	24,007	20,663
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	17,970	20,663	24,007	17,970	24,007	20,663
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	21,795	21,890	27,877	21,418	32,167	28,057
Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	18,226	22,860	21,874	18,226	21,874	22,860
Recorded Investment With No Allowance	14,402	18,054	19,793	14,402	19,793	18,054
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	14,402	18,054	19,793	14,402	19,793	18,054
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	16,600	18,242	21,199	17,084	22,465	20,776
Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid Contractual Principal Balance	125	124	161	125	161	124
Recorded Investment With No Allowance	95	94	127	95	127	94
Recorded Investment With Allowance	0	0	0	0	0	0
Total Recorded Investment	95	94	127	95	127	94
Related Allowance	0	0	0	0	0	0
Average Recorded Investment	$ 99	$ 100	$ 130	$ 97	$ 200	$ 160

Loans - Summary of Credit Quali

Loans - Summary of Credit Quality Indicate Financial Receivable (Loan Excluding Purchased Non-Covered and Covered Loans Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 2,171,600	$ 1,889,881	$ 1,770,059
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	537,201	456,106	422,731
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30,080	30,782	31,902
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	15,903	14,308	11,492
Excluding Purchased Non-Covered and Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,171,600	1,889,881	1,770,059
Excluding Purchased Non-Covered and Covered Loans [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	181,933	128,577	110,842
Excluding Purchased Non-Covered and Covered Loans [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	243,070	217,804	226,652
Excluding Purchased Non-Covered and Covered Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,104,747	947,948	866,356
Excluding Purchased Non-Covered and Covered Loans [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	27,400	29,205	28,429
Excluding Purchased Non-Covered and Covered Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	544,664	488,187	450,363
Excluding Purchased Non-Covered and Covered Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	25,020	25,983	33,360
Excluding Purchased Non-Covered and Covered Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	44,766	52,176	54,047
Excluding Purchased Non-Covered and Covered Loans [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		1	10
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	373,202	319,654	304,588
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	173,795	121,355	103,726
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	25,447	25,318	24,620
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	96,169	100,599	102,278
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	635	56	123
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	69,304	62,519	65,882
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,566	3,758	4,004
Excluding Purchased Non-Covered and Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	5,286	6,049	3,955
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	205,019	161,507	149,346
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	268	268
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,402	4,010	4,678
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	47,207	47,541	48,008
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	8,071	8,933	9,215
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	140,119	93,514	77,973
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,510	1,474	2,680
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Construction & Development [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,442	5,767	6,792
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,010,195	907,524	850,000
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	150	155	255
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	127,090	128,170	141,846
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	592,636	511,198	460,715
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	11,984	10,507	9,318
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	248,227	224,464	197,381
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	11,088	13,035	12,914
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	19,020	19,995	27,571
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	537,201	456,106	422,731
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,606	226	505
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	85,812	59,301	54,388
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	334,999	256,758	226,149
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	6,655	9,672	9,479
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	83,207	102,998	103,846
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	8,612	7,459	13,568
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	16,310	19,692	14,786
Excluding Purchased Non-Covered and Covered Loans [Member] | Real Estate - Residential [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade			10
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30,080	30,782	31,902
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	6,114	6,573	6,356
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,319	1,005	1,120
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	17,833	17,544	17,714
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	55	37	294
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,807	4,692	5,281
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	244	257	194
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	708	673	943
Excluding Purchased Non-Covered and Covered Loans [Member] | Consumer Installment Loans [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		1
Excluding Purchased Non-Covered and Covered Loans [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	15,903	14,308	11,492
Excluding Purchased Non-Covered and Covered Loans [Member] | Other [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 15,903	$ 14,308	$ 11,492

Loans - Summary of Credit Qua63

Loans - Summary of Credit Quality Indicate Financial Receivable (Non-Covered Loan Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 2,171,600	$ 1,889,881	$ 1,770,059
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	537,201	456,106	422,731
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30,080	30,782	31,902
Purchased Non-Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	808,313	674,239	702,131
Purchased Non-Covered Loans [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	10,123	7,394	4,344
Purchased Non-Covered Loans [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	53,220	29,727	35,540
Purchased Non-Covered Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	362,304	208,686	186,690
Purchased Non-Covered Loans [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	10,537	6,578	165
Purchased Non-Covered Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	300,411	361,155	416,671
Purchased Non-Covered Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	34,779	25,747	32,309
Purchased Non-Covered Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	36,887	34,889	26,412
Purchased Non-Covered Loans [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	52	63
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	45,337	38,041	41,583
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	9,091	6,624	3,494
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,377	1,376	4,728
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	12,545	13,657	11,567
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		73
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	18,556	13,753	18,251
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,462	1,618	3,162
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,276	910	381
Purchased Non-Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30	30
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	75,302	58,362	64,084
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	866	552	245
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	16,979	12,991	12,905
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	240
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	49,070	36,230	42,127
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,409	4,365	4,722
Purchased Non-Covered Loans [Member] | Real Estate - Construction & Development [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	4,738	4,254	4,085
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	404,588	306,706	311,748
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	80
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	8,710	13,277	14,191
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	190,219	116,308	94,598
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,792	3,207
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	165,267	144,293	175,427
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	19,042	12,279	16,078
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	17,478	17,342	11,454
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	276,798	266,342	278,451
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		290	293
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	41,641	14,051	15,839
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	139,792	64,083	64,937
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	6,505	3,298	165
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	65,818	164,959	178,523
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	9,803	7,444	8,326
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	13,217	12,184	10,368
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member] | 50 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	22	33
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	6,288	4,788	6,265
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 10 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	952	480	557
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	626	501	537
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,769	1,647	2,683
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,700	1,920	2,343
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	63	41	21
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 178	$ 199	$ 124

Loans - Summary of Credit Qua64

Loans - Summary of Credit Quality Indicate Financial Receivable (Covered Loan Portfolio) (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 2,171,600	$ 1,889,881	$ 1,770,059
Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	373,202	319,654	304,588
Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	205,019	161,507	149,346
Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,010,195	907,524	850,000
Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	537,201	456,106	422,731
Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30,080	30,782	31,902
Covered Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	209,598	271,279	331,250
Covered Loans [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	613	1,287	1,453
Covered Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	31,794	41,434	56,918
Covered Loans [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	11,406	18,747	21,764
Covered Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	103,820	128,082	146,871
Covered Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	17,227	20,913	27,487
Covered Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	44,738	60,816	76,757
Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	17,666	21,467	25,209
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	580	917	1,133
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	68	164	124
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	4,089	5,181	6,569
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	4,923	4,808	4,398
Covered Loans [Member] | Commercial, Financial & Agricultural [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	8,006	10,397	12,985
Covered Loans [Member] | Real Estate - Construction & Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	15,002	23,447	31,600
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		1	2
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	1,218	3,184	5,524
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade		537	555
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	8,142	9,406	9,251
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	2,409	2,753	4,802
Covered Loans [Member] | Real Estate - Construction & Development [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	3,233	7,566	11,466
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	111,772	147,627	188,643
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	488	761	822
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	17,382	23,167	33,050
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	5,255	11,404	15,528
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	60,682	80,334	94,504
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	4,165	5,302	9,959
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	23,800	26,659	34,780
Covered Loans [Member] | Real Estate - Residential [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	64,982	78,520	85,518
Covered Loans [Member] | Real Estate - Residential [Member] | 15 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	125	525	629
Covered Loans [Member] | Real Estate - Residential [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	12,571	14,089	17,143
Covered Loans [Member] | Real Estate - Residential [Member] | 23 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	6,083	6,642	5,557
Covered Loans [Member] | Real Estate - Residential [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	30,870	33,124	36,507
Covered Loans [Member] | Real Estate - Residential [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	5,730	8,050	8,326
Covered Loans [Member] | Real Estate - Residential [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	9,603	16,090	17,356
Covered Loans [Member] | Consumer Installment Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	176	218	280
Covered Loans [Member] | Consumer Installment Loans [Member] | 20 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	43	77	68
Covered Loans [Member] | Consumer Installment Loans [Member] | 25 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	37	37	40
Covered Loans [Member] | Consumer Installment Loans [Member] | 30 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade			2
Covered Loans [Member] | Consumer Installment Loans [Member] | 40 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans portfolio by risk grade	$ 96	$ 104	$ 170

Loans - Summary of Troubled Deb

Loans - Summary of Troubled Debt Restructurings by Loan Class (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2015USD ($)Contract	Jun. 30, 2014USD ($)Contract
Financing Receivable Troubled Debt Restructuring [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	25	26
Troubled debt restructuring loans	$ 782	$ 1,662
Financing Receivable Troubled Debt Restructuring [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	2
Troubled debt restructuring loans	$ 18	$ 16
Financing Receivable Troubled Debt Restructuring [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	4
Troubled debt restructuring loans	$ 16	$ 235
Financing Receivable Troubled Debt Restructuring [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract		3
Troubled debt restructuring loans		$ 1,037
Financing Receivable Troubled Debt Restructuring [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	15	6
Troubled debt restructuring loans	$ 729	$ 328
Financing Receivable Troubled Debt Restructuring [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5	11
Troubled debt restructuring loans	$ 19	$ 46
Purchased Non-Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 1,000
Purchased Non-Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5
Troubled debt restructuring loans	$ 1,017
Purchased Non-Covered Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 5
Purchased Non-Covered Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6
Troubled debt restructuring loans	$ 1,022
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	15	31
Troubled debt restructuring loans	$ 1,212	$ 2,577
Covered Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 1
Covered Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	2
Troubled debt restructuring loans	$ 34	$ 28
Covered Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	4	5
Troubled debt restructuring loans	$ 796	$ 1,024
Covered Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6	24
Troubled debt restructuring loans	$ 376	$ 1,525
Covered Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2
Troubled debt restructuring loans	$ 5

Loans - Summary of Troubled D66

Loans - Summary of Troubled Debt Restructuring by Loan Class, Defaulted under Restructured Terms (Detail)	Jun. 30, 2015USD ($)Contract	Dec. 31, 2014USD ($)	Jun. 30, 2014USD ($)Contract
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 14,000,000	$ 15,300,000	$ 21,100,000
Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 12,467,000	12,759,000	$ 17,337,000
Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	23		4
Troubled debt restructuring loans	$ 2,225,000		$ 130,000
Purchased Non-Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 6,792,000	1,212,000	0
Purchased Non-Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 65,000
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 19,600,000	$ 24,600,000	$ 23,700,000
Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6		14
Troubled debt restructuring loans	$ 297,000		$ 1,081,000
Commercial, Financial & Agricultural [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2
Troubled debt restructuring loans	$ 35,000
Real Estate - Construction & Development [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract			1
Troubled debt restructuring loans			$ 35,000
Real Estate - Commercial & Farmland [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5
Troubled debt restructuring loans	$ 1,274,000
Real Estate - Commercial & Farmland [Member] | Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1		1
Troubled debt restructuring loans	$ 21,000		$ 71,000
Real Estate - Residential [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	10		2
Troubled debt restructuring loans	$ 884,000		$ 72,000
Real Estate - Residential [Member] | Purchased Non-Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 65,000
Real Estate - Residential [Member] | Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5		13
Troubled debt restructuring loans	$ 276,000		$ 1,010,000
Consumer Installment Loans [Member] | Excluding Purchased Non-Covered and Covered Loans [Member] | Financing Receivables, 1 to 29 Days Past Due [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6		1
Troubled debt restructuring loans	$ 32,000		$ 23,000

Loans - Summary of Troubled D67

Loans - Summary of Troubled Debt Restructurings by Loan Class, Excluding Purchased Non-Covered and Covered Loans (Detail) $ in Thousands	Jun. 30, 2015USD ($)Contract	Dec. 31, 2014USD ($)Contract	Jun. 30, 2014USD ($)Contract
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 14,000	$ 15,300	$ 21,100
Excluding Purchased Non-Covered and Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 12,467	$ 12,759	$ 17,337
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	94	92	86
Troubled debt restructuring loans	$ 12,467	$ 12,759	$ 17,337
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6	6	3
Troubled debt restructuring loans	$ 278	$ 290	$ 257
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	11	9	12
Troubled debt restructuring loans	$ 821	$ 679	$ 2,080
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	17	19	19
Troubled debt restructuring loans	$ 6,617	$ 6,477	$ 7,590
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	49	47	38
Troubled debt restructuring loans	$ 4,702	$ 5,258	$ 7,335
Excluding Purchased Non-Covered and Covered Loans [Member] | Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	11	11	14
Troubled debt restructuring loans	$ 49	$ 55	$ 75
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	43	32	22
Troubled debt restructuring loans	$ 1,549	$ 2,523	$ 3,743
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	5	2	3
Troubled debt restructuring loans	$ 29	$ 13	$ 465
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	5	2
Troubled debt restructuring loans	$ 57	$ 228	$ 32
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	3	4
Troubled debt restructuring loans	$ 598	$ 724	$ 2,151
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	15	11	8
Troubled debt restructuring loans	$ 783	$ 1,485	$ 1,044
Excluding Purchased Non-Covered and Covered Loans [Member] | Non-Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	17	11	5
Troubled debt restructuring loans	$ 82	$ 73	$ 51

Loans - Summary of Troubled D68

Loans - Summary of Troubled Debt Restructurings by Loan Class of Purchased Non-covered Loans (Detail)	Jun. 30, 2015USD ($)Contract	Dec. 31, 2014USD ($)Contract	Jun. 30, 2014USD ($)
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 14,000,000	$ 15,300,000	$ 21,100,000
Purchased Non-Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 6,792,000	$ 1,212,000	$ 0
Purchased Non-Covered Loans [Member] | Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	24	9
Troubled debt restructuring loans	$ 6,792,000	$ 1,212,000
Purchased Non-Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	1
Troubled debt restructuring loans	$ 374,000	$ 317,000
Purchased Non-Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	7	1
Troubled debt restructuring loans	$ 4,058,000	$ 346,000
Purchased Non-Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	12	6
Troubled debt restructuring loans	$ 2,354,000	$ 547,000
Purchased Non-Covered Loans [Member] | Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	1
Troubled debt restructuring loans	$ 6,000	$ 2,000
Purchased Non-Covered Loans [Member] | Non-Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	6	1
Troubled debt restructuring loans	$ 166,000	$ 25,000
Purchased Non-Covered Loans [Member] | Non-Accruing Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 1,000
Purchased Non-Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1
Troubled debt restructuring loans	$ 69,000
Purchased Non-Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	1
Troubled debt restructuring loans	$ 91,000	$ 25,000
Purchased Non-Covered Loans [Member] | Non-Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2
Troubled debt restructuring loans	$ 5,000

Loans - Summary of Trouble Debt

Loans - Summary of Trouble Debt Restructuring by Loan Class of Covered Loans (Detail) $ in Thousands	Jun. 30, 2015USD ($)Contract	Dec. 31, 2014USD ($)Contract	Jun. 30, 2014USD ($)Contract
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 14,000	$ 15,300	$ 21,100
Covered Loans [Member]
Financing Receivable, Modifications [Line Items]
Troubled debt restructuring loans	$ 19,600	$ 24,600	$ 23,700
Covered Loans [Member] | Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	111	117	110
Troubled debt restructuring loans	$ 17,500	$ 22,619	$ 21,102
Covered Loans [Member] | Accruing Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	2	1
Troubled debt restructuring loans	$ 3	$ 40	$ 12
Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	4	4
Troubled debt restructuring loans	$ 2,832	$ 3,037	$ 3,020
Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	11	14	13
Troubled debt restructuring loans	$ 3,973	$ 8,079	$ 6,979
Covered Loans [Member] | Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	95	96	92
Troubled debt restructuring loans	$ 10,690	$ 11,460	$ 11,091
Covered Loans [Member] | Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	1
Troubled debt restructuring loans	$ 2	$ 3
Covered Loans [Member] | Non-Accruing Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	20	17	33
Troubled debt restructuring loans	$ 2,059	$ 1,942	$ 2,563
Covered Loans [Member] | Non-Accruing Loans [Member] | Commercial, Financial & Agricultural [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	2	2	4
Troubled debt restructuring loans	$ 0		$ 27
Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Construction & Development [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	1	2	5
Troubled debt restructuring loans	$ 13	$ 29	$ 74
Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Commercial & Farmland [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	3	5	7
Troubled debt restructuring loans	$ 1,105	$ 1,082	$ 1,388
Covered Loans [Member] | Non-Accruing Loans [Member] | Real Estate - Residential [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract	14	8	16
Troubled debt restructuring loans	$ 941	$ 831	$ 1,070
Covered Loans [Member] | Non-Accruing Loans [Member] | Consumer Installment Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | Contract			1
Troubled debt restructuring loans			$ 4

Loans - Schedule of Allowances

Loans - Schedule of Allowances for Loan Losses by Portfolio Segment (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 21,852	$ 22,212	$ 22,744	$ 21,157	$ 22,377	$ 22,377
Provision for loan losses	2,656	888	1,365	3,725	3,091	5,648
Loans charged off	(3,542)	(2,488)	(2,614)	(5,190)	(4,718)	(9,560)
Recoveries of loans previously charged off	692	545	759	1,966	1,504	2,692
Ending balance	21,658	21,157	22,254	21,658	22,254	21,157
Loans individually evaluated for impairment	3,892	3,890	3,445	3,892	3,445	3,890
Loans collectively evaluated for impairment	17,766	17,267	18,809	17,766	18,809	17,267
Individually evaluated for impairment	27,885	27,649	32,522	27,885	32,522	27,649
Collectively evaluated for impairment	2,932,971	2,563,652	2,499,031	2,932,971	2,499,031	2,563,652
Loan pools collectively evaluated for impairment	268,984			268,984
Ending balance	3,458,495	2,835,399	2,803,440	3,458,495	2,803,440	2,835,399
Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired with deteriorated credit quality	228,655	244,098	271,887	228,655	271,887	244,098
Purchased Non Covered Loans Including Pools [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for loan losses	121	80		(311)		84
Loans charged off	(240)	(80)		(470)		(84)
Recoveries of loans previously charged off	119			781
Collectively evaluated for impairment	698,068	579,172	608,874	698,068	608,874	579,172
Loan pools collectively evaluated for impairment	268,984			268,984
Ending balance	1,077,297	674,239	702,131	1,077,297	702,131	674,239
Purchased Non Covered Loans Including Pools [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired with deteriorated credit quality	110,245	95,067	93,257	110,245	93,257	95,067
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for loan losses	735	158	368	1,136	593	843
Loans charged off	(850)	(337)	(641)	(1,413)	(1,139)	(1,851)
Recoveries of loans previously charged off	115	179	273	277	546	1,008
Collectively evaluated for impairment	91,188	122,248	152,620	91,188	152,620	122,248
Ending balance	99,932	95,967	77,392	99,932	77,392	95,967
Covered Loans [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired with deteriorated credit quality	118,410	149,031	178,630	118,410	178,630	149,031
Commercial, Financial & Agricultural [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,399	2,581	2,219	2,004	1,823	1,823
Provision for loan losses	322	(200)	(3)	(176)	1,087	1,427
Loans charged off	(410)	(468)	(165)	(802)	(908)	(1,567)
Recoveries of loans previously charged off	115	91	134	400	183	321
Ending balance	1,426	2,004	2,185	1,426	2,185	2,004
Loans individually evaluated for impairment	450	375	282	450	282	375
Loans collectively evaluated for impairment	976	1,629	1,903	976	1,903	1,629
Individually evaluated for impairment	3,351	490	855	3,351	855	490
Collectively evaluated for impairment	369,851	319,164	303,733	369,851	303,733	319,164
Ending balance	373,202	319,654	304,588	373,202	304,588	319,654
Commercial, Financial & Agricultural [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance	14,260	14,385	14,694	14,260	14,694	14,385
Real Estate - Construction & Development [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,311	5,294	5,918	5,030	5,538	5,538
Provision for loan losses	40	(239)	(426)	387	(89)	(265)
Loans charged off	(263)	(74)	(157)	(360)	(222)	(592)
Recoveries of loans previously charged off	277	49	96	308	204	349
Ending balance	5,365	5,030	5,431	5,365	5,431	5,030
Loans individually evaluated for impairment	414	743	710	414	710	743
Loans collectively evaluated for impairment	4,951	4,287	4,721	4,951	4,721	4,287
Individually evaluated for impairment	1,437	3,709	3,264	1,437	3,264	3,709
Collectively evaluated for impairment	203,582	157,798	146,082	203,582	146,082	157,798
Ending balance	205,019	161,507	149,346	205,019	149,346	161,507
Real Estate - Construction & Development [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance	29,895	27,289	12,921	29,895	12,921	27,289
Real Estate - Commercial & Farmland [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	8,770	8,632	8,625	8,823	8,393	8,393
Provision for loan losses	756	1,133	452	700	1,074	3,444
Loans charged off	(1,162)	(1,033)	(769)	(1,174)	(1,302)	(3,288)
Recoveries of loans previously charged off	17	91	9	32	152	274
Ending balance	8,381	8,823	8,317	8,381	8,317	8,823
Loans individually evaluated for impairment	1,242	1,861	1,652	1,242	1,652	1,861
Loans collectively evaluated for impairment	7,139	6,962	6,665	7,139	6,665	6,962
Individually evaluated for impairment	15,028	14,546	16,865	15,028	16,865	14,546
Collectively evaluated for impairment	995,167	892,978	833,135	995,167	833,135	892,978
Ending balance	1,010,195	907,524	850,000	1,010,195	850,000	907,524
Real Estate - Commercial & Farmland [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance	37,426	31,309	27,742	37,426	27,742	31,309
Real Estate - Residential [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	5,008	5,407	5,280	4,129	6,034	6,034
Provision for loan losses	234	(981)	590	1,324	(66)	(452)
Loans charged off	(464)	(368)	(752)	(732)	(933)	(1,707)
Recoveries of loans previously charged off	27	71	48	84	131	254
Ending balance	4,805	4,129	5,166	4,805	5,166	4,129
Loans individually evaluated for impairment	1,786	911	801	1,786	801	911
Loans collectively evaluated for impairment	3,019	3,218	4,365	3,019	4,365	3,218
Individually evaluated for impairment	8,069	8,904	11,538	8,069	11,538	8,904
Collectively evaluated for impairment	529,132	447,202	411,193	529,132	411,193	447,202
Ending balance	537,201	456,106	422,731	537,201	422,731	456,106
Real Estate - Residential [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Ending balance	18,226	22,860	21,874	18,226	21,874	22,860
Consumer Installment Loans and Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	1,364	298	702	1,171	589	589
Provision for loan losses	448	937	384	665	492	567
Loans charged off	(153)	(128)	(130)	(239)	(214)	(471)
Recoveries of loans previously charged off	22	64	199	84	288	486
Ending balance	1,681	1,171	1,155	1,681	1,155	1,171
Loans collectively evaluated for impairment	1,681	1,171	1,155	1,681	1,155	1,171
Collectively evaluated for impairment	45,983	45,090	43,394	45,983	43,394	45,090
Ending balance	$ 45,983	$ 45,090	$ 43,394	$ 45,983	$ 43,394	$ 45,090

Assets Acquired in FDIC-Assis71

Assets Acquired in FDIC-Assisted Acquisitions - Additional Information (Detail) $ in Thousands	6 Months Ended	34 Months Ended
	Jun. 30, 2015USD ($)	Jul. 31, 2012Acquisition	Dec. 31, 2014USD ($)	Jun. 30, 2014USD ($)	Dec. 31, 2013USD ($)
Business Combinations [Abstract]
Number of FDIC-assisted acquisitions participation | Acquisition		10
FDIC loss-share receivable	$ 14,957		$ 31,351	$ 49,180	$ 65,441
Federal funds purchased and securities sold under agreements to repurchase	13,400
Business acquisition, Charge-offs and expenses	8,900
Clawback liability	$ 7,300		$ 6,200	$ 5,200

Assets Acquired in FDIC-Assis72

Assets Acquired in FDIC-Assisted Acquisitions - Schedule of Acquisition Details (Detail) - 6 months ended Jun. 30, 2015 - Entity	Total
American United Bank (AUB) [Member]
Business Acquisition [Line Items]
Bank Acquired	American United Bank ("AUB")
Branches	1
Date Acquired	Oct. 23, 2009
United Security Bank (USB) [Member]
Business Acquisition [Line Items]
Bank Acquired	United Security Bank ("USB")
Branches	2
Date Acquired	Nov. 6, 2009
Satilla Community Bank (SCB) [Member]
Business Acquisition [Line Items]
Bank Acquired	Satilla Community Bank ("SCB")
Branches	1
Date Acquired	May 14, 2010
First Bank of Jacksonville (FBJ) [Member]
Business Acquisition [Line Items]
Bank Acquired	First Bank of Jacksonville ("FBJ")
Branches	2
Date Acquired	Oct. 22, 2010
Tifton Banking Company (TBC) [Member]
Business Acquisition [Line Items]
Bank Acquired	Tifton Banking Company ("TBC")
Branches	1
Date Acquired	Nov. 12, 2010
Darby Bank & Trust (DBT) [Member]
Business Acquisition [Line Items]
Bank Acquired	Darby Bank & Trust ("DBT")
Branches	7
Date Acquired	Nov. 12, 2010
High Trust Bank (HTB) [Member]
Business Acquisition [Line Items]
Bank Acquired	High Trust Bank ("HTB")
Branches	2
Date Acquired	Jul. 15, 2011
One Georgia Bank (OGB) [Member]
Business Acquisition [Line Items]
Bank Acquired	One Georgia Bank ("OGB")
Branches	1
Date Acquired	Jul. 15, 2011
Central Bank of Georgia (CBG) [Member]
Business Acquisition [Line Items]
Bank Acquired	Central Bank of Georgia Bank ("CBG")
Branches	5
Date Acquired	Feb. 24, 2012
Montgomery Bank & Trust (MBT) [Member]
Business Acquisition [Line Items]
Bank Acquired	Montgomery Bank & Trust ("MBT")
Branches	2
Date Acquired	Jul. 6, 2012

Assets Acquired in FDIC-Assis73

Assets Acquired in FDIC-Assisted Acquisitions - Components of Covered Assets (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2013
Covered Assets [Line Items]
Covered loans	$ 226,440	$ 367,735	$ 296,724
Less: Fair value adjustments	16,842	36,485	25,445
Total covered loans	209,598	331,250	271,279
OREO	14,857	46,468	23,408
Less: Fair value adjustments	2,231	8,042	3,501
Total covered OREO	12,626	38,426	19,907
Total covered assets	222,224	369,676	291,186
FDIC indemnification asset	14,957	49,180	31,351	$ 65,441
American United Bank (AUB) [Member]
Covered Assets [Line Items]
Covered loans		9,106
Less: Fair value adjustments		133
Total covered loans		8,973
OREO		1,690
Total covered OREO		1,690
Total covered assets		10,663
FDIC indemnification asset	187	1,676	188
United Security Bank (USB) [Member]
Covered Assets [Line Items]
Covered loans	3,883	14,030	4,350
Less: Fair value adjustments	18	805	150
Total covered loans	3,865	13,225	4,200
OREO	165	2,927	165
Less: Fair value adjustments		62
Total covered OREO	165	2,865	165
Total covered assets	4,030	16,090	4,365
FDIC indemnification asset	(1,232)	920	(1,197)
Satilla Community Bank (SCB) [Member]
Covered Assets [Line Items]
Covered loans	5,318	30,545	26,686
Less: Fair value adjustments	209	954	602
Total covered loans	5,109	29,591	26,084
OREO	95	3,332	2,849
Less: Fair value adjustments		308	389
Total covered OREO	95	3,024	2,460
Total covered assets	5,204	32,615	28,544
FDIC indemnification asset	1,300	3,073	1,828
First Bank of Jacksonville (FBJ) [Member]
Covered Assets [Line Items]
Covered loans	17,708	23,264	21,243
Less: Fair value adjustments	1,286	2,696	1,825
Total covered loans	16,422	20,568	19,418
OREO	815	1,734	632
Less: Fair value adjustments	121	135
Total covered OREO	694	1,599	632
Total covered assets	17,116	22,167	20,050
FDIC indemnification asset	1,227	2,752	1,885
Darby Bank & Trust (DBT) [Member]
Covered Assets [Line Items]
Covered loans	46,269	81,700	64,338
Less: Fair value adjustments	3,667	8,774	6,437
Total covered loans	42,602	72,926	57,901
OREO	5,216	12,766	6,655
Less: Fair value adjustments	700	913	514
Total covered OREO	4,516	11,853	6,141
Total covered assets	47,118	84,779	64,042
FDIC indemnification asset	2,126	10,119	6,860
Tifton Banking Company (TBC) [Member]
Covered Assets [Line Items]
Covered loans	19,609	28,363	23,487
Less: Fair value adjustments	515	1,853	1,117
Total covered loans	19,094	26,510	22,370
OREO	1,480	4,493	2,388
Less: Fair value adjustments	116	758	367
Total covered OREO	1,364	3,735	2,021
Total covered assets	20,458	30,245	24,391
FDIC indemnification asset	521	3,543	3,287
High Trust Bank (HTB) [Member]
Covered Assets [Line Items]
Covered loans	47,176	59,267	52,699
Less: Fair value adjustments	4,127	6,535	5,120
Total covered loans	43,049	52,732	47,579
OREO	3,085	4,130	3,670
Less: Fair value adjustments	955	1,349	1,283
Total covered OREO	2,130	2,781	2,387
Total covered assets	45,179	55,513	49,966
FDIC indemnification asset	4,806	9,000	6,459
One Georgia Bank (OGB) [Member]
Covered Assets [Line Items]
Covered loans	34,218	49,501	42,971
Less: Fair value adjustments	2,192	4,937	3,785
Total covered loans	32,026	44,564	39,186
OREO	442	7,964	2,244
Less: Fair value adjustments		2,984	39
Total covered OREO	442	4,980	2,205
Total covered assets	32,468	49,544	41,391
FDIC indemnification asset	1,856	7,268	3,906
Central Bank of Georgia (CBG) [Member]
Covered Assets [Line Items]
Covered loans	52,259	71,959	60,950
Less: Fair value adjustments	4,828	9,798	6,409
Total covered loans	47,431	62,161	54,541
OREO	3,559	7,432	4,805
Less: Fair value adjustments	339	1,533	909
Total covered OREO	3,220	5,899	3,896
Total covered assets	50,651	68,060	58,437
FDIC indemnification asset	$ 4,166	$ 10,829	$ 8,135

Assets Acquired in FDIC-Assis74

Assets Acquired in FDIC-Assisted Acquisitions - Rollforward of Acquired Covered Loans (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Covered Loans [Line Items]
Balance, beginning of year	$ 15,578	$ 25,493	$ 25,493
Accretion	6,251	15,432	22,188
Transfer to covered other real estate owned	(2,039)	(1,425)
Transfer to purchased, non-covered loans due to loss-share expiration	(84)
Balance, end of year	12,060	15,911	15,578
Loans with Deterioration of Credit Quality [Member]
Covered Loans [Line Items]
Balance, beginning of year	271,279	390,237	390,237
Charge-offs	(7,065)	(5,694)	(9,255)
Accretion	6,251	13,330	22,188
Transfer to covered other real estate owned	(6,534)	(9,083)	(13,650)
Transfer to purchased, non-covered loans due to loss-share expiration	(15,462)		(15,475)
Payments received	(38,871)	(57,540)	(102,996)
Other			230
Balance, end of year	$ 209,598	$ 331,250	$ 271,279

Assets Acquired in FDIC-Assis75

Assets Acquired in FDIC-Assisted Acquisitions - Schedule of Changes in Accretable Discounts Related Acquired Loans (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Combinations [Abstract]
Balance, beginning of year	$ 15,578	$ 25,493	$ 25,493
Accretion	(6,251)	(15,432)	(22,188)
Transfer to purchased, non-covered loans due to loss-share expiration	(84)
Transfers between non-accretable and accretable discounts, net	2,817	5,850	12,273
Balance, end of year	$ 12,060	$ 15,911	$ 15,578

Assets Acquired in FDIC-Assis76

Assets Acquired in FDIC-Assisted Acquisitions - Changes in FDIC Shared-Loss Receivable (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Business Combinations [Abstract]
Beginning balance	$ 31,351	$ 65,441	$ 65,441
Payments received from FDIC	(12,539)	(10,576)	(22,494)
Accretion (amortization)	(5,393)	(11,390)	(18,449)
Changes in clawback liability	(1,057)	(228)	(1,222)
Charge-offs on covered loans	1,955	2,372	3,372
Write downs of covered other real estate	2,206	2,090	4,771
Reimbursable expenses on covered assets	1,866	2,248	1,078
Other activity, net	(3,432)	(777)	(1,146)
Ending balance	$ 14,957	$ 49,180	$ 31,351

Other Real Estate Owned - Summa

Other Real Estate Owned - Summary of Activity in Other Real Estate Owned (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Beginning balance	$ 33,160	$ 33,351	$ 33,351
Loans transferred to other real estate owned	8,636	6,400	11,972
Net gains (losses) on sale and write-downs	(9,449)	(1,523)	(4,585)
Sales proceeds	(9,780)	(2,855)	(7,578)
Ending balance	$ 22,567	$ 35,373	$ 33,160

Other Real Estate Owned - Sum78

Other Real Estate Owned - Summary of Activity in Purchased Non-Covered Other Real Estate Owned (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Beginning balance, January 1	$ 15,585	$ 15,585	$ 15,585
Loans transferred to other real estate owned	2,039	1,425	4,160
Acquired in acquisitions	2,189	11,464	8,864
Transfer from covered other real estate owned due to loss-share expiration	75		1,226
Net gains (losses) on sale and write-downs	182	61	828
Sales proceeds	(6,958)	(628)	(3,769)
Ending balance	$ 13,112	$ 16,598	$ 15,585

Other Real Estate Owned - Sum79

Other Real Estate Owned - Summary of Activity in Covered Other Real Estate Owned (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Real Estate Owned, Disclosure of Detailed Components [Abstract]
Beginning balance	$ 19,907	$ 45,893	$ 45,893
Loans transferred to other real estate owned	6,534	9,083	13,650
Transfer from covered other real estate owned due to loss-share expiration	(75)		(1,226)
Net gains (losses) on sale and write-downs	(2,758)	(2,613)	(5,965)
Sales proceeds	(10,982)	(13,937)	(32,445)
Ending balance	$ 12,626	$ 38,426	$ 19,907

Securities Sold under Agreeme80

Securities Sold under Agreements to Repurchase - Securities Sold under Agreements to Repurchase (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Disclosure of Repurchase Agreements [Abstract]
Securities sold under agreements to repurchase	$ 75,066	$ 73,310	$ 51,109
Total	$ 75,066	$ 73,310	$ 51,109

Other Borrowings - Additional I

Other Borrowings - Additional Information (Detail) - USD ($)	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Debt Disclosure [Abstract]
Outstanding borrowings	$ 39,000,000	$ 78,881,000	$ 100,293,000
Borrowing available with FHLB	297,500,000
Credit arrangements for federal funds purchase	65,000,000
Loans pledged at federal reserve discount window	633,100,000
Loans pledged at federal reserve discount window available for borrowing	$ 441,600,000

Other Borrowings - Summary of O

Other Borrowings - Summary of Other Borrowings (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Total other borrowings	$ 39,000	$ 78,881	$ 100,293
Fixed Rate Advance One [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances			5,000
Fixed Rate Advance Two [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances			5,000
Fixed Rate Advance Three [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances			3,000
Daily Rate Credit From Federal Home Loan Bank [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances		35,000	40,000
Revolving Credit Facility 1 [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances	24,000	24,000
Revolving Credit Facility [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument advances			22,500
Correspondent Bank Advances [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Advance from correspondent bank with a fixed interest rate of 4.50%, due November 27, 2017, secured by subsidiary bank loan receivable		4,881	4,936
Subordinated Debt One [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Subordinated debt issued			5,000
Subordinated Debt Two [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Subordinated debt issued	$ 15,000	$ 15,000	$ 14,857

Other Borrowings - Summary of83

Other Borrowings - Summary of Other Borrowings (Parenthetical) (Detail)	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Daily Rate Credit From Federal Home Loan Bank [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument effective rate	0.36%	0.36%	0.36%
Revolving Credit Facility 1 [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Interest rate description	90-day LIBOR plus 3.50% (3.78% at June 30, 2015 and 3.73% at December 31, 2014)
Interest rate, margin to be added	3.50%		3.50%
Debt instrument effective rate	3.78%		3.73%
Debt instrument, maturity period	2016-08		2016-08
Revolving Credit Facility [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Interest rate description	90-day LIBOR plus 4.00% (4.23% at June 30, 2014)
Interest rate, margin to be added		4.00%
Debt instrument effective rate		4.23%
Debt instrument, maturity period	2016-08	2016-08
Correspondent Bank Advances [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument effective rate	4.50%	4.50%	4.50%
Maturity period of advances	Nov. 27, 2017	Nov. 27, 2017	Nov. 27, 2017
Subordinated Debt One [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Interest rate description	90-day LIBOR plus 1.60% (1.84% at June 30, 2014)
Interest rate, margin to be added		1.60%
Debt instrument effective rate		1.84%
Debt instrument, maturity period		2016-06
Subordinated Debt Two [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Interest rate description	90-day LIBOR plus 1.75% (2.04% at June 30, 2015, 1.99% at December 31, 2014 and 1.98% at June 30, 2014)
Interest rate, margin to be added	1.75%	1.75%	1.75%
Debt instrument effective rate	2.04%	1.98%	1.99%
Debt instrument, maturity period	2016-09	2016-09	2016-09
Federal Home Loan Bank Advances [Member] | Fixed Rate Advance One [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument effective rate	0.20%	0.20%
Maturity period of advances	Jul. 2, 2014	Jul. 2, 2014
Federal Home Loan Bank Advances [Member] | Fixed Rate Advance Two [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument effective rate	0.21%	0.21%
Maturity period of advances	Jul. 16, 2014	Jul. 16, 2014
Federal Home Loan Bank Advances [Member] | Fixed Rate Advance Three [Member]
Federal Home Loan Bank Borrowings By Year Of Maturity And Applicable Interest Rate [Line Items]
Debt instrument effective rate	0.19%	0.19%
Maturity period of advances	Jul. 23, 2014	Jul. 23, 2014

Commitments and Contingencies -

Commitments and Contingencies - Summary of Company's Commitments (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]
Commitments to extend credit	$ 431,678	$ 293,517	$ 243,163
Unused lines of credit	51,834	49,567	41,908
Financial standby letters of credit	10,535	9,683	8,392
Mortgage interest rate lock commitments	$ 91,977	$ 38,868	$ 70,854

Commitments and Contingencies85

Commitments and Contingencies - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2015USD ($)
Commitments and Contingencies Disclosure [Abstract]
Litigation settlement against the company	$ (2.9)

Accumulated Other Comprehensi86

Accumulated Other Comprehensive Income - Summary of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period		$ 366,028
Reclassification for gains included in net income	$ (6)	(14)	$ (4)
Balance at end of period	486,770	486,770	343,399
Unrealized Gain (Loss) on Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period		508	1,397
Current year changes		(131)	(638)
Balance at end of period	377	377	759
Unrealized Gain (Loss) on Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period		5,590	(1,691)
Reclassification for gains included in net income		(14)	(4)
Current year changes		(2,881)	5,059
Balance at end of period	2,695	2,695	3,364
Accumulated Other Comprehensive Income, Net of Tax [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period		6,098	(294)
Reclassification for gains included in net income		(14)	(4)
Current year changes		(3,012)	4,421
Balance at end of period	$ 3,072	$ 3,072	$ 4,123

Weighted Average Shares Outst87

Weighted Average Shares Outstanding - Summary of Weighted Average Number of Shares (Detail) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Basic shares outstanding	32,184	25,181	31,318	25,163
Plus: Dilutive effect of ISOs	116	120	115	118
Plus: Dilutive effect of Restricted grants	220	271	220	271
Diluted shares outstanding	32,520	25,572	31,653	25,552

Weighted Average Shares Outst88

Weighted Average Shares Outstanding - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Anti-dilutive common shares excluded	5,000	119,000	5,000	120,000

Fair Value of Financial Instr89

Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Fair Value Disclosures [Abstract]
Net gain from change in fair value of mortgage loans	$ 3.2	$ 2.3

Fair Value of Financial Instr90

Fair Value of Financial Instruments - Difference Between Fair Value and Principal Balance for Mortgage Loans Held for Sale Measured at Fair Value (Detail) - Mortgage Loans Held for Sale [Member] - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Assets And Liabilities Carrying Value And Fair Value [Line Items]
Aggregate Fair Value of Mortgage Loans held for sale	$ 108,829	$ 94,759	$ 81,491
Aggregate Unpaid Principal Balance	105,184	90,418	78,395
Past due loans of 90 days or more	0	0	0
Nonaccrual loans	$ 0	$ 0	$ 0

Fair Value of Financial Instr91

Fair Value of Financial Instruments - Fair Value Measurements of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	$ 974,758	$ 638,321	$ 619,746
Recurring liabilities at fair value	1,306	1,564	1,142
US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	14,746	14,678	14,445
State, County and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	167,372	141,375	145,780
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	12,836	11,040	10,958
Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	667,200	374,712	364,447
Mortgage Loans Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	108,829	94,759	81,491
Mortgage Banking Derivative Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	3,775	1,757	2,625
Derivative Financial Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring liabilities at fair value	1,306	1,315	1,142
Mortgage Banking Derivatives Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring liabilities at fair value		249
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value		8,248
Level 1 [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value		8,248
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	972,258	627,573	617,746
Recurring liabilities at fair value	1,306	1,564	1,142
Level 2 [Member] | US Government Agencies [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	14,746	14,678	14,445
Level 2 [Member] | State, County and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	167,372	141,375	145,780
Level 2 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	10,336	8,540	8,958
Level 2 [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	667,200	366,464	364,447
Level 2 [Member] | Mortgage Loans Held for Sale [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	108,829	94,759	81,491
Level 2 [Member] | Mortgage Banking Derivative Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	3,775	1,757	2,625
Level 2 [Member] | Derivative Financial Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring liabilities at fair value	1,306	1,315	1,142
Level 2 [Member] | Mortgage Banking Derivatives Instruments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring liabilities at fair value		249
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	2,500	2,500	2,000
Level 3 [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Recurring assets at fair value	$ 2,500	$ 2,500	$ 2,000

Fair Value of Financial Instr92

Fair Value of Financial Instruments - Summary of Fair Value Measurements of Assets Measured at Fair Value on Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	$ 54,966	$ 65,971	$ 90,853
Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	29,228	30,479	35,829
Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	13,112	15,585	16,598
Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	12,626	19,907	38,426
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	11,069
Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	54,966	65,971	90,853
Level 3 [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	29,228	30,479	35,829
Level 3 [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	13,112	15,585	16,598
Level 3 [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	12,626	$ 19,907	$ 38,426
Level 3 [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Nonrecurring assets at fair value	$ 11,069

Fair Value of Financial Instr93

Fair Value of Financial Instruments - Summary of Significant Unobservable Inputs Used in Fair Value Measurement of Level 3 Assets and Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 54,966	$ 90,853	$ 65,971
Investment securities available for sale, Recurring	974,758	619,746	638,321
Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	11,069
Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	13,112	16,598	15,585
Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	12,626	38,426	19,907
Level 3 [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	54,966	90,853	65,971
Investment securities available for sale, Recurring	$ 2,500	$ 2,000	$ 2,500
Level 3 [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Valuation Technique	Third party appraisals and discounted cash flows	Third party appraisals and discounted cash flows	Third party appraisals and discounted cash flows
Level 3 [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 11,069
Valuation Technique	Third party appraisals, Sales contracts, Broker price opinions
Level 3 [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 13,112	$ 16,598	$ 15,585
Valuation Technique	Third party appraisals	Third party appraisals	Third party appraisals
Level 3 [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 12,626	$ 38,426	$ 19,907
Valuation Technique	Third party appraisals	Third party appraisals	Third party appraisals
Level 3 [Member] | Fair Value Measurement, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment securities available for sale, Recurring	$ 2,500	$ 2,000	$ 2,500
Valuation Technique	Discounted par values	Discounted par values	Discounted par values
Level 3 [Member] | Fair Value Measurement, Nonrecurring [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 29,228	$ 35,289	$ 30,479
Level 3 [Member] | Fair Value Measurement, Nonrecurring [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	11,069
Level 3 [Member] | Fair Value Measurement, Nonrecurring [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	13,112	16,598	15,585
Level 3 [Member] | Fair Value Measurement, Nonrecurring [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Disclosure, Nonrecurring	$ 12,626	$ 38,426	$ 19,907
Level 3 [Member] | Minimum [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	4.00%	4.00%	0.00%
Level 3 [Member] | Minimum [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%
Level 3 [Member] | Minimum [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%	21.00%	10.00%
Level 3 [Member] | Minimum [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%	10.00%	10.00%
Level 3 [Member] | Minimum [Member] | Fair Value Measurement, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	0.00%	0.00%	0.00%
Level 3 [Member] | Maximum [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	75.00%	90.00%	50.00%
Level 3 [Member] | Maximum [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%
Level 3 [Member] | Maximum [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	85.00%	70.00%	96.00%
Level 3 [Member] | Maximum [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	70.00%	90.00%	90.00%
Level 3 [Member] | Maximum [Member] | Fair Value Measurement, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	0.00%	0.00%	0.00%
Level 3 [Member] | Average Daily Balance [Member] | Impaired Loans Carried at Fair Value [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	24.00%	27.00%	20.00%
Level 3 [Member] | Average Daily Balance [Member] | Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	10.00%
Level 3 [Member] | Average Daily Balance [Member] | Purchased Non-Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	19.00%	23.00%	20.00%
Level 3 [Member] | Average Daily Balance [Member] | Covered Other Real Estate Owned [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	12.00%	11.00%	11.00%
Level 3 [Member] | Average Daily Balance [Member] | Fair Value Measurement, Recurring [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value inputs discount rate range	0.00%	0.00%	0.00%

Fair Value of Financial Instr94

Fair Value of Financial Instrument - Carrying Amount and Estimated Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Financial assets:
Cash and due from banks	$ 115,413	$ 78,036	$ 80,986	$ 62,955
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
FDIC loss-share receivable	14,957	31,351	49,180	$ 65,441
Financial liabilities:
Other borrowings	39,000	78,881	100,293
Subordinated deferrable interest debentures	69,325	65,325	64,842
Carrying Value [Member]
Financial assets:
Cash and due from banks	115,413	78,026	80,986
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
Loans, net	3,407,609	2,783,763	2,745,897
FDIC loss-share receivable	14,957	31,351	49,180
Accrued interest receivable	17,648	17,023	15,711
Financial liabilities:
Deposits	4,511,547	3,431,149	3,389,035
Securities sold under agreements to repurchase	75,066	73,310	51,109
Other borrowings	39,000	78,881	100,293
Accrued interest payable	1,239	1,382	1,423
Subordinated deferrable interest debentures	69,325	65,325	64,842
Fair Value [Member]
Financial assets:
Cash and due from banks	115,413	78,026	80,986
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
Loans, net	3,428,008	2,785,627	2,754,953
FDIC loss-share receivable	5,295	18,764	36,182
Accrued interest receivable	17,648	17,023	15,711
Financial liabilities:
Deposits	4,513,218	3,432,059	3,389,880
Securities sold under agreements to repurchase	75,066	73,310	51,109
Other borrowings	39,000	78,881	100,293
Accrued interest payable	1,239	1,382	1,423
Subordinated deferrable interest debentures	50,924	46,564	45,864
Fair Value [Member] | Level 1 [Member]
Financial assets:
Cash and due from banks	115,413	78,026	80,986
Federal funds sold and interest-bearing accounts	239,804	92,323	44,800
Accrued interest receivable	17,648	17,023	15,711
Financial liabilities:
Securities sold under agreements to repurchase	75,066	73,310	51,109
Accrued interest payable	1,239	1,382	1,423
Fair Value [Member] | Level 2 [Member]
Financial liabilities:
Deposits	4,513,218	3,432,059	3,389,880
Other borrowings	39,000	78,881	100,293
Subordinated deferrable interest debentures	50,924	46,564	45,864
Fair Value [Member] | Level 3 [Member]
Financial assets:
Loans, net	3,428,008	2,785,627	2,754,953
FDIC loss-share receivable	$ 5,295	$ 18,764	$ 36,182

Segment Reporting - Schedule of

Segment Reporting - Schedule of Financial Information with Respect to Company's Reportable Business Segments (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net interest income	$ 40,688		$ 35,264	$ 79,520	$ 69,748
Provision for loan losses	2,656	$ 888	1,365	3,725	3,091	$ 5,648
Noninterest income	20,626		15,819	38,201	28,573
Noninterest expense
Salaries and employee benefits	22,465		16,942	43,097	34,336
Equipment and occupancy expenses	4,809		4,071	9,363	8,135
Data processing and telecommunications expenses	4,214		3,940	8,474	7,394
Other expenses	25,376		12,365	36,757	20,692
Total noninterest expense	56,864		37,318	97,691	70,557
Income (loss) before income tax expense (benefit)	1,794		12,400	16,305	24,673
Income tax expense	486		4,270	5,233	8,193
Net income	1,308		8,130	11,072	16,480
Less preferred stock dividends					286
Net income (loss) available to common shareholders	1,308		8,130	11,072	16,194
Total assets	5,205,734	$ 4,037,077	3,973,135	5,205,734	3,973,135	$ 4,037,077
Intangible assets	106,556		68,715	106,556	68,715
Banking Division [Member]
Segment Reporting Information [Line Items]
Net interest income	36,806		33,345	72,645	66,273
Provision for loan losses	2,456		1,365	3,383	3,091
Noninterest income	9,262		7,449	18,042	14,810
Noninterest expense
Salaries and employee benefits	15,675		12,509	31,037	26,086
Equipment and occupancy expenses	4,376		3,752	8,520	7,501
Data processing and telecommunications expenses	3,913		3,590	7,924	6,916
Other expenses	24,048		10,753	34,404	18,133
Total noninterest expense	48,012		30,604	81,885	58,636
Income (loss) before income tax expense (benefit)	(4,400)		8,825	5,419	19,356
Income tax expense	(1,682)		3,019	1,423	6,332
Net income	(2,718)		5,806	3,996	13,024
Less preferred stock dividends					286
Net income (loss) available to common shareholders	(2,718)		5,806	3,996	12,738
Total assets	4,823,335		3,744,089	4,823,335	3,744,089
Intangible assets	106,556		68,715	106,556	68,715
Retail Mortgage Division [Member]
Segment Reporting Information [Line Items]
Net interest income	1,979		972	3,524	1,886
Provision for loan losses	200			342
Noninterest income	9,095		6,836	16,705	11,916
Noninterest expense
Salaries and employee benefits	5,592		3,881	10,119	7,403
Equipment and occupancy expenses	396		300	776	601
Data processing and telecommunications expenses	279		329	491	443
Other expenses	1,150		1,233	2,082	2,008
Total noninterest expense	7,417		5,743	13,468	10,455
Income (loss) before income tax expense (benefit)	3,457		2,065	6,419	3,347
Income tax expense	1,210		723	2,246	1,171
Net income	2,247		1,342	4,173	2,176
Net income (loss) available to common shareholders	2,247		1,342	4,173	2,176
Total assets	235,067		131,275	235,067	131,275
Warehouse Lending Division [Member]
Segment Reporting Information [Line Items]
Net interest income	1,179		367	2,014	553
Noninterest income	383		166	656	250
Noninterest expense
Salaries and employee benefits	99		56	226	102
Equipment and occupancy expenses	1			3	1
Data processing and telecommunications expenses	20		14	53	22
Other expenses	19		79	55	119
Total noninterest expense	139		149	337	244
Income (loss) before income tax expense (benefit)	1,423		384	2,333	559
Income tax expense	498		134	817	196
Net income	925		250	1,516	363
Net income (loss) available to common shareholders	925		250	1,516	363
Total assets	82,913		44,010	82,913	44,010
SBA Division [Member]
Segment Reporting Information [Line Items]
Net interest income	724		580	1,337	1,036
Noninterest income	1,886		1,368	2,798	1,597
Noninterest expense
Salaries and employee benefits	1,099		496	1,715	745
Equipment and occupancy expenses	36		19	64	32
Data processing and telecommunications expenses	2		7	6	13
Other expenses	159		300	216	432
Total noninterest expense	1,296		822	2,001	1,222
Income (loss) before income tax expense (benefit)	1,314		1,126	2,134	1,411
Income tax expense	460		394	747	494
Net income	854		732	1,387	917
Net income (loss) available to common shareholders	854		732	1,387	917
Total assets	$ 64,419		$ 53,761	$ 64,419	$ 53,761

Uncategorized Items - abcb-2015

Label	Element	Value
Amortization of Intangible Assets	us-gaap_AmortizationOfIntangibleAssets	$ 437
Amortization of Intangible Assets	us-gaap_AmortizationOfIntangibleAssets	630
Gain (Loss) on Investments	us-gaap_GainLossOnInvestments	$ 10