CenterState Bank (CSFL) 10-Q 3 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'CenterState Banks, Inc.	'
Entity Central Index Key	'0001102266	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	45,217,149

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$48,528	$21,581
Federal funds sold and Federal Reserve Bank deposits	162,038	153,308
Cash and cash equivalents	210,566	174,889
Trading securities, at fair value	656	0
Investment securities available for sale, at fair value	535,767	457,086
Investment securities held to maturity (fair value of $5,428 and $-0- at September 30, 2014 and December 31, 2013, respectively)	5,372	0
Loans held for sale, at lower of cost or fair value	522	1,010
Loans, excluding purchased credit impaired	2,126,489	1,242,758
Purchased credit impaired loans	309,638	231,421
Allowance for loan losses	-19,842	-20,454
Net Loans	2,416,285	1,453,725
Bank premises and equipment, net	98,972	96,619
Accrued interest receivable	8,416	6,337
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	17,176	8,189
Goodwill	76,981	44,924
Core deposit intangible	15,068	4,958
Trust intangible	1,027	1,158
Bank owned life insurance	82,936	49,285
Other repossessed real estate owned covered by FDIC loss share agreements	25,452	19,111
Other repossessed real estate owned	10,899	6,409
FDIC indemnification asset	54,032	73,877
Deferred income tax asset, net	56,640	5,296
Bank property held for sale	5,922	1,582
Prepaid expense and other assets	16,454	11,556
TOTAL ASSETS	3,639,143	2,416,011
Deposits:	'	'
Demand - non-interest bearing	1,043,083	644,915
Demand - interest bearing	575,020	483,842
Savings and money market accounts	960,053	542,599
Time deposits	488,074	384,875
Total deposits	3,066,230	2,056,231
Securities sold under agreement to repurchase	30,456	20,457
Federal funds purchased	42,070	29,909
Corporate debentures	23,873	16,996
Accrued interest payable	359	333
Payables and accrued expenses	33,793	18,706
Total liabilities	3,196,781	2,142,632
Stockholders' equity:	'	'
Common stock, $.01 par value: 100,000,000 shares authorized; 45,208,836 and 30,112,475 shares issued and outstanding at September 30, 2014 and December 31, 2013, respectively	452	301
Additional paid-in capital	388,538	229,544
Retained earnings	52,445	48,018
Accumulated other comprehensive income ( loss)	927	-4,484
Total stockholders' equity	442,362	273,379
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$3,639,143	$2,416,011

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement Of Financial Position [Abstract]	'	'
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	45,208,836	30,112,475
Common stock, shares outstanding	45,208,836	30,112,475
Held-to-maturity securities, fair value	$5,428	$0

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest income:	'	'	'	'
Loans	$33,519	$22,963	$87,757	$66,188
Investment securities available for sale:	'	'	'	'
Taxable	3,073	2,560	10,368	7,045
Tax-exempt	338	362	1,003	1,091
Federal funds sold and other	417	149	1,080	575
Total interest income	37,347	26,034	100,208	74,899
Interest expense:	'	'	'	'
Deposits	1,799	1,246	4,659	3,959
Securities sold under agreement to repurchase	52	21	131	60
Federal funds purchased	6	5	17	16
Corporate debentures	240	152	701	452
Total interest expenses	2,097	1,424	5,508	4,487
Net interest income	35,250	24,610	94,700	70,412
Provision for loan losses	955	-1,273	808	-259
Net interest income after loan loss provision	34,295	25,883	93,892	70,671
Non interest income:	'	'	'	'
Correspondent banking capital markets revenue	4,184	2,909	11,524	13,953
Other correspondent banking related revenue	958	862	2,834	2,432
Service charges on deposit accounts	2,496	2,244	7,091	6,144
Debit, prepaid, ATM and merchant card related fees	1,612	1,399	4,613	4,026
Wealth management related revenue	993	1,179	3,314	3,379
FDIC indemnification income	213	3,333	1,902	5,357
FDIC indemnification asset amortization	-4,953	-3,836	-15,144	-9,307
Bank owned life insurance income	451	327	1,159	1,004
Other service charges and fees	605	190	1,352	723
Net gain on sale of securities available for sale	'	'	46	1,038
Total other income	6,559	8,607	18,691	28,749
Non interest expense:	'	'	'	'
Salaries, wages and employee benefits	18,799	14,345	51,665	45,819
Occupancy expense	3,038	1,924	7,477	5,758
Depreciation of premises and equipment	1,542	1,364	4,583	4,316
Supplies, stationary and printing	375	268	936	841
Marketing expenses	746	722	1,985	1,836
Data processing expense	1,673	1,026	4,018	2,822
Legal, audit and other professional fees	1,099	1,176	3,250	2,803
Core deposit intangible ("CDI") amortization	656	246	1,459	749
Postage and delivery	386	266	1,019	818
ATM and debit card related expenses	466	435	1,408	1,374
Bank regulatory expenses	916	588	2,300	1,804
(Gain)/loss on sale of repossessed real estate (bOREOb)	-577	1,852	-121	2,414
Valuation write down of repossessed real estate (bOREOb)	329	3,184	2,234	5,851
Loss on repossessed assets other than real estate	17	39	34	385
Foreclosure related expenses	646	680	2,467	2,260
Merger and acquisition related expenses	3,450	183	10,694	183
Branch closure and efficiency initiatives	-6	'	3,181	'
Other expenses	1,979	1,552	5,501	4,280
Total other expenses	35,534	29,850	104,090	84,313
Income before provision for income taxes	5,320	4,640	8,493	15,107
Provision for income taxes	1,727	1,531	2,810	4,664
Net income	3,593	3,109	5,683	10,443
Other comprehensive income, net of tax:	'	'	'	'
Unrealized securities holding (loss) gain, net of income taxes	-665	-1,608	5,439	-10,219
Less: reclassified adjustments for gain included in net income, net of income taxes, of $-0-, $-0-, $18, and $400, respectively	'	'	-28	-638
Net unrealized (loss) gain on available for sale securities, net of income taxes	-665	-1,608	5,411	-10,857
Total comprehensive income (loss)	$2,928	$1,501	$11,094	($414)
Earnings per share:	'	'	'	'
Basic	$0.08	$0.10	$0.14	$0.35
Diluted	$0.08	$0.10	$0.14	$0.35
Common shares used in the calculation of earnings per share:	'	'	'	'
Basic	45,061,356	30,109,728	39,435,947	30,099,509
Diluted	45,413,275	30,243,873	39,801,560	30,216,028

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENTS OF EARNINGS AND COMPREHENSIVE INCOME (unaudited) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Reclassifications of gain included in net income, income taxes	$0	$0	$18	$400

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) (USD $)	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Gulf Stream [Member]	Gulf Stream [Member]	Gulf Stream [Member]	First Southern Bancorp, Inc. [Member]	First Southern Bancorp, Inc. [Member]	First Southern Bancorp, Inc. [Member]
In Thousands, except Share data							Common Stock [Member]	Additional Paid in Capital [Member]		Common Stock [Member]	Additional Paid in Capital [Member]
Balances at beginning at Dec. 31, 2012	$273,531	$301	$228,952	$36,979	$7,299	'	'	'	'	'	'
Balances at beginning, shares at Dec. 31, 2012	30,079,767	'	'	'	'	'	'	'	'	'	'
Net income	10,443	'	'	10,443	'	'	'	'	'	'	'
Unrealized holding gain/loss on available for sale securities, net of deferred income tax	-10,857	'	'	'	-10,857	'	'	'	'	'	'
Dividends paid - common ($0.03 per share)	-902	'	'	-902	'	'	'	'	'	'	'
Stock grants issued	300	'	300	'	'	'	'	'	'	'	'
Stock grants issued, shares	32,708	'	'	'	'	'	'	'	'	'	'
Stock based compensation expense	226	'	226	'	'	'	'	'	'	'	'
Balances at ending at Sep. 30, 2013	272,741	301	229,478	46,520	-3,558	'	'	'	'	'	'
Balances at ending, shares at Sep. 30, 2013	30,112,475	'	'	'	'	'	'	'	'	'	'
Balances at beginning at Dec. 31, 2013	273,379	301	229,544	48,018	-4,484	'	'	'	'	'	'
Balances at beginning, shares at Dec. 31, 2013	30,112,475	'	'	'	'	'	'	'	'	'	'
Net income	5,683	'	'	5,683	'	'	'	'	'	'	'
Unrealized holding gain/loss on available for sale securities, net of deferred income tax	5,411	'	'	'	5,411	'	'	'	'	'	'
Dividends paid - common ($0.03 per share)	-1,256	'	'	-1,256	'	'	'	'	'	'	'
Stock grants issued	554	2	552	'	'	'	'	'	'	'	'
Stock grants issued, shares	194,830	'	'	'	'	'	'	'	'	'	'
Stock based compensation expense	220	'	220	'	'	'	'	'	'	'	'
Stock options exercised, including tax benefit	968	2	966	'	'	'	'	'	'	'	'
Stock options exercised including tax benefit, Shares	229,945	'	'	'	'	'	'	'	'	'	'
Stock issued pursuant to acquisition	'	'	'	'	'	53,150	52	53,098	100,636	95	100,541
Stock issued pursuant to acquisition, Shares	'	'	'	'	'	5,195,541	'	'	9,476,045	'	'
Stock options acquired and converted pursuant to Gulfstream acquisition	3,617	'	3,617	'	'	'	'	'	'	'	'
Balances at ending at Sep. 30, 2014	$442,362	$452	$388,538	$52,445	$927	'	'	'	'	'	'
Balances at ending, shares at Sep. 30, 2014	45,208,836	'	'	'	'	'	'	'	'	'	'

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (unaudited) (Parenthetical) (USD $)	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Unrealized holding gain/loss on available for sale securities, deferred income tax benefit	$3,398	($5,808)
Dividends paid - common, per share	$0.03	$0.03
Retained Earnings [Member]	'	'
Dividends paid - common, per share	$0.03	$0.03
Accumulated Other Comprehensive Income (Loss) [Member]	'	'
Unrealized holding gain/loss on available for sale securities, deferred income tax benefit	$3,398	($5,808)

CONDENSED_CONSOLIDATED_STATEME4

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:	'	'
Net income	$5,683	$10,443
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Provision for loan losses	808	-259
Depreciation of premises and equipment	4,583	4,316
Accretion of purchase accounting adjustments	-27,602	-24,785
Net amortization of investment securities	4,604	5,353
Net deferred loan origination fees	-452	-593
Gain on sale of securities available for sale	-46	-1,038
Trading securities revenue	-126	-212
Purchases of trading securities	-117,031	-171,530
Proceeds from sale of trading securities	116,501	176,392
Repossessed real estate owned valuation write down	2,234	5,851
(Gain) loss on sale of repossessed real estate owned	-121	2,414
Repossessed assets other than real estate valuation write down	32	65
Loss on sale of repossessed assets other than real estate	2	320
Gain on sale of loans held for sale	-380	-255
Loans originated and held for sale	-18,751	-15,499
Proceeds from sale of loans held for sale	19,866	17,146
(Gain) loss on disposal of and or sale of fixed assets	-18	6
Gain on disposal of bank property held for sale	'	-31
Impairment on bank property held for sale	2,500	'
Deferred income taxes	-3,595	1,354
Stock based compensation expense	573	436
Bank owned life insurance income	-1,159	-1,004
Net cash from changes in:	'	'
Net changes in accrued interest receivable, prepaid expenses, and other assets	10,204	6,600
Net change in accrued interest payable, accrued expense, and other liabilities	5,939	1,028
Net cash provided by operating activities	4,248	16,518
Cash flows from investing activities:	'	'
Purchases of investment securities held to maturity	-5,377	'
Purchases of investment securities available for sale	'	-31,133
Purchases of mortgage backed securities available for sale	-195,943	-183,002
Purchases of FRB and FHLB stock	-3,580	'
Proceeds from maturities of investment securities available for sale	'	165
Proceeds from called investment securities available for sale	1,935	8,670
Proceeds from pay-downs of mortgage backed securities available for sale	61,355	83,801
Proceeds from sales of investment securities available for sale	62,111	31,201
Proceeds from sales of mortgage backed securities available for sale	261,426	37,691
Proceeds from sales of FHLB and FRB stock	1,054	1,570
Net decrease (increase) in loans	12,039	-25,264
Cash received from FDIC loss sharing agreements	9,593	36,227
Purchase of bank owned life insurance	-25,000	'
Purchases of premises and equipment, net	-628	-3,670
Proceeds from sale of repossessed real estate	25,675	22,356
Proceeds from sale of fixed assets	18	13
Proceeds from sale of bank property held for sale	7,134	931
Net cash from bank acquisitions	130,494	'
Net cash provided by/(used in) investing activities	342,306	-20,444
Cash flows from financing activities:	'	'
Net decrease in deposits	-151,150	-34,886
Net increase in securities sold under agreement to repurchase	2,423	3,358
Net increase in federal funds purchased	12,161	6,424
Net in other borrowings	-5,708	'
Net increase in payable to shareholders for acquisitions	1,433	'
Stock options exercised, including tax benefit	968	'
Dividends paid	-1,256	-902
Net cash provided by financing activities	-310,877	-26,006
Net increase (decrease) in cash and cash equivalents	35,677	-29,932
Sale of deposits	-169,748	'
Cash and cash equivalents, beginning of period	174,889	136,748
Cash and cash equivalents, end of period	210,566	106,816
Transfer of loans to other real estate owned	12,741	23,400
Transfers of bank property to held for sale	4,647	'
Cash paid during the period for:	'	'
Interest	6,350	5,059
Income taxes	$5,761	$1,745

Nature_of_Operations_and_Basis

Nature of Operations and Basis of Presentation	9 Months Ended
	Sep. 30, 2014
Accounting Policies [Abstract]	'
Nature of Operations and Basis of Presentation	'
	NOTE 1: Nature of Operations and basis of presentation
	The consolidated financial statements include the accounts of CenterState Banks, Inc. (the “Parent Company,” “Company” or “CSFL”), and its wholly owned subsidiary bank, CenterState Bank of Florida, N.A. (“CenterState”), and non bank subsidiary, R4ALL, Inc. The subsidiary bank operates through 58 full service banking locations in 20 counties throughout Florida, providing traditional deposit and lending products and services to its commercial and retail customers. R4ALL, Inc. is a separate non bank subsidiary of CSFL. Its purpose is to purchase troubled loans from the subsidiary bank and manage their eventual disposition.
	In addition, the Company also operates a correspondent banking and capital markets division. The division is integrated with and part of the subsidiary bank located in Winter Haven, Florida, although the majority of its bond salesmen, traders and operational personnel are physically housed in leased facilities located in Birmingham, Alabama, Atlanta, Georgia and Winston Salem, North Carolina. The business lines of this division are primarily divided into three inter-related revenue generating activities. The first, and largest, revenue generator is commissions earned on fixed income security sales, fees from hedging services, loan brokerage fees and consulting fees for services related to these activities. The second category includes correspondent bank deposits (i.e. federal funds purchased) and correspondent bank checking account deposits. The third revenue generating category includes fees from safe-keeping activities, bond accounting services for correspondents, asset/liability consulting related activities, international wires, and other clearing and corporate checking account services. The customer base includes small to medium size financial institutions primarily located in the Southeastern United States.
	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial statements and with the instructions to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. These statements should be read in conjunction with the consolidated financial statements included in the Annual Report on Form 10-K for the year ended December 31, 2013. In the Company’s opinion, all adjustments, consisting primarily of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods have been made. The results of operations of the three month and nine month periods ended September 30, 2014 are not necessarily indicative of the results expected for the full year.
	Some items in the prior period financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior period net income or shareholders’ equity.

Common_Stock_Outstanding_and_E

Common Stock Outstanding and Earnings Per Share Data	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Common Stock Outstanding and Earnings Per Share Data	'
	NOTE 2: Common stock outstanding and earnings per share data
	Basic earnings per share is based on the weighted average number of common shares outstanding during the periods. Diluted earnings per share includes the weighted average number of common shares outstanding during the periods and the further dilution from stock options using the treasury method. Average stock options outstanding that were anti dilutive during the three and nine month periods ending September 30, 2014 and 2013 were 893,620, 956,882, 1,040,121 and 1,116,739 respectively. The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for the periods presented.
		Three months ended September 30,				Nine months ended September 30,
		2014		2013		2014		2013
	Numerator for basic and diluted earnings per share:
	Net income	$	3,593	$	3,109	$	5,683	$	10,443
	Denominator:
	Denominator for basic earnings per share
	- weighted-average shares		45,061,356		30,109,728		39,435,947		30,099,509
	Effect of dilutive securities:
	Stock options and stock grants		351,919		134,145		365,613		116,519
	Denominator for diluted earnings per share
	- adjusted weighted-average shares		45,413,275		30,243,873		39,801,560		30,216,028
	Basic earnings per share	$	0.08	$	0.1	$	0.14	$	0.35
	Diluted earnings per share	$	0.08	$	0.1	$	0.14	$	0.35

Fair_Value

Fair Value	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value	'
	NOTE 3: Fair value
	Generally accepted accounting principles establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:
	Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active markets that the entity has the ability to access as of the measurement date.
	Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.
	Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing and asset or liability.
	The fair values of securities available for sale are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs).
	The fair values of trading securities are determined as follows: (1) for those securities that have traded prior to the date of the consolidated balance sheet but have not settled (date of sale) until after such date, the sales price is used as the fair value; and, (2) for those securities which have not traded as of the date of the consolidated balance sheet, the fair value was determined by broker price indications of similar or same securities.
	The fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2). Assets and liabilities measured at fair value on a recurring basis are summarized below.
				Fair value measurements using
						Significant
				Quoted prices in		other				Significant
				active markets for		observable				unobservable
		Carrying		identical assets		inputs				inputs
		value		(Level 1)		(Level 2)				(Level 3)
	at September 30, 2014
	Assets:
	Trading securities	$	656	-		$	656			-
	Available for sale securities
	U.S. government sponsored entities and agencies		3	-			3			-
	Mortgage backed securities		496,763	-			496,763			-
	Municipal securities		39,000	-			39,000			-
	Interest rate swap derivatives		3,983	-			3,983			-
	Liabilities:
	Interest rate swap derivatives		4,398	-			4,398			-
	at December 31, 2013
	Assets:
	Trading securities	$      ---		-		$      ---				-
	Available for sale securities
	U.S. government sponsored entities and agencies		4	-			4			-
	Mortgage backed securities		416,881	-			416,881			-
	Municipal securities		40,201	-			40,201			-
	Interest rate swap derivatives		2,603	-			2,603			-
	Liabilities:
	Interest rate swap derivatives		2,496	-			2,496			-
	The fair value of impaired loans with specific valuation allowance for loan losses and other real estate owned is based on recent real estate appraisals. For residential real estate impaired loans and other real estate owned, appraised values are based on the comparative sales approach. For commercial and commercial real estate impaired loans, and other real estate owned, appraisers may use either a single valuation approach or a combination of approaches such as comparative sales, cost or the income approach. A significant unobservable input in the income approach is the estimated income capitalization rate for a given piece of collateral. At September 30, 2014, the range of capitalization rates utilized to determine the fair value of the underlying collateral ranged from 8% to 11%. Adjustments to appraisals may be made by the appraiser to reflect local market conditions or other economic factors and may result in changes in the fair value of a given asset over time. As such, the fair value of impaired loans and other real estate owned are considered a Level 3 in the fair value hierarchy.
	Assets and liabilities measured at fair value on a non-recurring basis are summarized below.
				Fair value measurements using
						Significant
				Quoted prices in		other		Significant
				active markets for		observable		unobservable
		Carrying		identical assets		inputs		inputs
		value		(Level 1)		(Level 2)		(Level 3)
	at September 30, 2014
	Assets:
	Impaired loans
	Residential real estate	$	3,086	-		-		$	3,086
	Commercial real estate		5,655	-		-			5,655
	Land, land development and construction		1,823	-		-			1,823
	Commercial		673	-		-			673
	Consumer		94	-		-			94
	Other real estate owned
	Residential real estate		388	-		-			388
	Commercial real estate		3,329	-		-			3,329
	Land, land development and construction		3,001	-		-			3,001
	Bank property held for sale		5,922	-		-			5,922
	at December 31, 2013
	Assets:
	Impaired loans
	Residential real estate	$	3,191	-		-		$	3,191
	Commercial real estate		7,515	-		-			7,515
	Land, land development and construction		290	-		-			290
	Commercial		731	-		-			731
	Consumer		157	-		-			157
Other real estate owned
Residential real estate		27	-		-			27
Commercial real estate		3,837	-		-			3,837
Land, land development and construction		3,949	-		-			3,949
Bank property held for sale		1,582	-		-			1,582
Impaired loans with specific valuation allowances and/or partial charge-offs had a recorded investment of $13,031 with a valuation allowance of $1,700, at September 30, 2014, and a recorded investment of $13,528, with a valuation allowance of $1,644, at December 31, 2013. The Company recorded a provision for loan loss expense of $452 and $857 on these loans during the three and nine month periods ending September 30, 2014.  The Company recorded a provision for loan loss expense of $383 and $781 on these loans during the three and nine month periods ending September 30, 2013, respectively.
Other real estate owned had a decline in fair value of $329, $2,234, $3,184 and $5,851 during the three and nine month periods ending September 30, 2014 and 2013, respectively. Changes in fair value were recorded directly to current earnings through non interest expense.
Bank property held for sale represents certain branch office buildings which the Company has closed and consolidated with other existing branches. The real estate was transferred out of the Bank Premises and Equipment category into bank property held for sale. The real estate was transferred at the lower of amortized cost or fair value less estimated costs to sell. The fair values were based upon comparative sales data provided by real estate brokers. The Company closed eight bank branch offices in April 2014, seven owned by the Company and one leased. Five of the properties owned by the Company were transferred to held-for-sale, the remaining two are being used as loan production offices, back office support staff offices and a portion of the second floor of one of the buildings is leased to an existing tenant. One of the properties transferred to held-for-sale during the first quarter of 2014 was sold and another was placed under a contract to sell during the third quarter of 2014, resulting in a recovery of $276 from a previous impairment charge of $1,040 recorded in the first quarter of 2014.  Excluding these two properties, the Company recognized an impairment charge of $225 and $1,511 during the three and nine month periods ending September 30, 2014 related to the transfer to held-for-sale. The Company also recognized an additional impairment of $45 and $225 for the three and nine month periods ending September 30, 2014 related to a property previously transferred to held-for-sale in 2012.
Fair Value of Financial Instruments
The methods and assumptions, not previously presented, used to estimate fair value are described as follows:
Cash and Cash Equivalents: The carrying amounts of cash and cash equivalents approximate fair values and are classified as Level 1.
FHLB and FRB Stock: It is not practical to determine the fair value of FHLB and FRB stock due to restrictions placed on their transferability.
Investment securities held to maturity:  The fair values of securities held to maturity are determined by obtaining quoted prices on nationally recognized securities exchanges (Level 1 inputs) or matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the securities’ relationship to other benchmark quoted securities (Level 2 inputs).
Loans held for sale: The fair value of loans held for sale is estimated based upon binding contracts from third party investors resulting in a Level 2 classification.
Loans, net: Fair values of loans, excluding loans held for sale, are estimated as follows: For variable rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values resulting in a Level 3 classification. Fair values for other loans are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality resulting in a Level 3 classification. Impaired loans are valued as described previously. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price.
FDIC Indemnification Asset: It is not practical to determine the fair value of the FDIC indemnification asset due to restrictions placed on its transferability.
Accrued Interest Receivable: The carrying amount of accrued interest receivable approximates fair value and is classified as Level 3.
Deposits: The fair values disclosed for demand deposits (e.g., interest and non-interest checking, savings, and money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amount) resulting in Level 1 classification. Fair values for fixed rate certificates of deposit are estimated using a discounted cash flows calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits resulting in a Level 2 classification.
Short-term Borrowings: The carrying amounts of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings, generally maturing within ninety days, approximate their fair values resulting in a Level 2 classification.
Corporate Debentures: The fair values of the Company’s corporate debentures are estimated using discounted cash flow analyses based on the current borrowing rates for similar types of borrowing arrangements resulting in a Level 3 classification.
Accrued Interest Payable: The carrying amount of accrued interest payable approximates fair value resulting in a Level 2 classification.
Off-balance Sheet Instruments: The fair value of off-balance-sheet items is not considered material.
The following table presents the carry amounts and estimated fair values of the Company’s financial instruments:
			Fair value measurements
at September 30, 2014	Carrying amount		Level 1				Level 2			Level 3		Total
Financial assets:
Cash and cash equivalents	$	210,566	$	210,566			$	-		$	-	$	210,566
Trading securities		656		-				656			-		656
Investment securities available for sale		535,767		-				535,767			-		535,767
Investment securities held to maturity		5,372		-				5,428			-		5,428
FHLB and FRB stock		17,176		-				-			-	n/a
Loans held for sale		522		-				522			-		522
Loans, less allowance for loan losses of $19,842		2,416,285		-				-			2,419,027		2,419,027
FDIC indemnification asset		54,032		-				-			-	n/a
Interest rate swap derivatives		3,983		-				3,983			-		3,983
Accrued interest receivable		8,416		-				-			8,416		8,416
Financial liabilities:
Deposits- without stated maturities	$	2,578,156	$	2,578,156			$	-		$	-	$	2,578,156
Deposits- with stated maturities		488,074		-				493,339			-		493,339
Securities sold under agreement to repurchase		30,456		-				30,456			-		30,456
Federal funds purchased		42,070		-				42,070			-		42,070
Corporate debentures		23,873		-				-			19,646		19,646
Interest rate swap derivatives		4,398		-				4,398			-		4,398
Accrued interest payable		359		-				359			-		359
			Fair value measurements
at December 31, 2013	Carrying amount		Level 1				Level 2			Level 3		Total
Financial assets:
Cash and cash equivalents	$	174,889	$	174,889			$	-		$	-	$	174,889
Trading securities	-		-				-			-		-
Investment securities available for sale		457,086	-					457,086		-			457,086
FHLB and FRB stock		8,189	-				-			-		n/a
Loans held for sale		1,010	-					1,010		-			1,010
Loans, less allowance for loan losses of $20,454		1,453,725	-				-				1,456,295		1,456,295
FDIC indemnification asset		73,877	-				-			-		n/a
Interest rate swap derivatives		2,603	-					2,603		-			2,603
Accrued interest receivable		6,337	-				-				6,337		6,337
Financial liabilities:
Deposits- without stated maturities	$	1,671,356	$	1,671,356			$	-		$	-	$	1,671,356
Deposits- with stated maturities		384,875	-					389,115		-			389,115
Securities sold under agreement to repurchase		20,457	-					20,457		-			20,457
Federal funds purchased		29,909	-					29,909		-			29,909
Corporate debentures		16,996	-				-				11,091		11,091
Interest rate swap derivatives		2,496	-					2,496		-			2,496
Accrued interest payable		333	-					333		-			333

Reportable_Segments

Reportable Segments	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Reportable Segments	'
	NOTE 4: Reportable segments
	The Company’s reportable segments represent the distinct product lines the Company offers and are viewed separately for strategic planning purposes by management. The table below is a reconciliation of the reportable segment revenues, expenses, and profit to the Company’s consolidated total for the three and nine month periods ending September 30, 2014 and 2013.
		Three month period ending September 30, 2014
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	36,541		$	806		$	-		$	-		$	37,347
	Interest expense		(1,852	)		(5	)		(240	)		-			(2,097	)
	Net interest income (expense)		34,689			801			(240	)		-			35,250
	Provision for loan losses		(955	)		-			-			-			(955	)
	Non interest income		1,417			5,142			-			-			6,559
	Non interest expense		(29,601	)		(5,036	)		(897	)		-			(35,534	)
	Net income (loss) before taxes		5,550			907			(1,137	)		-			5,320
	Income tax (provision) benefit		(1,812	)		(350	)		435			-			(1,727	)
	Net income (loss)	$	3,738		$	557		$	(702	)	$	-		$	3,593
	Total assets	$	3,473,586		$	153,243		$	472,431		$	(460,117	)	$	3,639,143
		Nine month period ending September 30, 2014
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	97,944		$	2,264		$	-		$	-		$	100,208
	Interest expense		(4,791	)		(16	)		(701	)		-			(5,508	)
	Net interest income (expense)	$	93,153		$	2,248		$	(701	)		-		$	94,700
	Provision for loan losses		(808	)		-			-			-			(808	)
	Non interest income		4,333			14,358			-			-			18,691
	Non interest expense		(86,983	)		(14,477	)		(2,630	)		-			(104,090	)
	Net income (loss) before taxes	$	9,695		$	2,129		$	(3,331	)		-		$	8,493
	Income tax (provision) benefit		(3,250	)		(821	)		1,261			-			(2,810	)
	Net income (loss)	$	6,445		$	1,308		$	(2,070	)	$	-		$	5,683
	Total assets	$	3,473,586		$	153,243		$	472,431		$	(460,117	)	$	3,639,143
		Three month period ending September 30, 2013
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	25,304		$	730		$	-		-			$	26,034
	Interest expense		(1,267	)		(5	)		(152	)	-				(1,424	)
	Net interest income (expense)		24,037			725			(152	)	-				24,610
	Provision for loan losses		1,273			-			-		-				1,273
	Non interest income		4,836			3,771			-		-				8,607
	Non interest expense		(24,620	)		(4,377	)		(853	)	-				(29,850	)
	Net income before taxes		5,526			119			(1,005	)	-				4,640
	Income tax (provision) benefit		(1,867	)		(46	)		382		-				(1,531	)
	Net income (loss)	$	3,359		$	73		$	(623	)	-			$	3,109
	Total assets	$	2,194,300		$	138,395		$	294,425		$	(291,099	)	$	2,336,021
		Nine month period ending September 30, 2013
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	72,777		$	2,122		$	-		$	-		$	74,899
	Interest expense		(4,019	)		(16	)		(452	)		-			(4,487	)
	Net interest income		68,758			2,106			(452	)		-			70,412
	Provision for loan losses		259			-			-			-			259
	Non interest income		12,364			16,385			-			-			28,749
	Non interest expense		(65,917	)		(15,815	)		(2,581	)		-			(84,313	)
	Net income before taxes		15,464			2,676			(3,033	)		-			15,107
	Income tax (provision) benefit		(4,933	)		(1,032	)		1,301			-			(4,664	)
	Net income (loss)	$	10,531		$	1,644		$	(1,732	)	$	-		$	10,443
	Total assets	$	2,194,300		$	138,395		$	294,425		$	(291,099	)	$	2,336,021
	Commercial and retail banking: The Company’s primary business is commercial and retail banking. Currently, the Company operates through its subsidiary bank and a non bank subsidiary, R4ALL, with 58 full service banking locations in 20 counties throughout Florida providing traditional deposit and lending products and services to its commercial and retail customers.
Correspondent banking and capital markets division: Operating as a division of our subsidiary bank, its primary revenue generating activities are related to the capital markets division which includes commissions earned on fixed income security sales, fees from hedging services, loan brokerage fees and consulting fees for services related to these activities. Income generated related to the correspondent banking services includes spread income earned on correspondent bank deposits (i.e. federal funds purchased) and fees generated from safe-keeping activities, bond accounting services, asset/liability consulting services, international wires, clearing and corporate checking account services and other correspondent banking related services. The fees derived from the correspondent banking services are less volatile than those generated through the capital markets group. The customer base includes small to medium size financial institutions primarily located in Southeastern United States.
Corporate overhead and administration: Corporate overhead and administration is comprised primarily of compensation and benefits for certain members of management, interest on parent company debt, office occupancy and depreciation of parent company facilities, certain merger related costs and other expenses.

Investment_Securities_Availabl

Investment Securities Available for Sale	9 Months Ended
	Sep. 30, 2014
Investments Debt And Equity Securities [Abstract]	'
Investment Securities Available for Sale	'
	NOTE 5: Investment Securities
	Available-for-Sale
	All of the mortgage backed securities listed below were issued by U.S. government sponsored entities and agencies, primarily Fannie Mae, Freddie Mac and Ginnie Mae, institutions which the government has affirmed its commitment to support. The fair value of available for sale securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) were as follows:
		30-Sep-14
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government sponsored entities and agencies	$	3	$	-	$	0	$	3
	Mortgage backed securities		496,623		5,070		4,930		496,763
	Municipal securities		37,631		1,472		103		39,000
	Total available-for-sale	$	534,257	$	6,542	$	5,033	$	535,767
		31-Dec-13
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government sponsored entities and agencies	$	4	$      ---		$       ---		$	4
	Mortgage backed securities		424,654		4,623		12,396		416,881
	Municipal securities		39,728		921		448		40,201
	Total available-for-sale	$	464,386	$	5,544	$	12,844	$	457,086
	The cost of securities sold is determined using the specific identification method. The securities sold during the first quarter of 2014 included securities acquired through the Gulfstream acquisition and the securities sold during the second quarter of 2014 included the securities acquired through the First Southern acquisition. These acquired securities were marked to fair value and subsequently sold after the acquisition date, therefore no gain or loss was recognized from the sale of these securities. Sales of available for sale securities for the nine months ended September 30, 2014 and 2013 were as follows:
	For the nine months ended:	30-Sep-14		30-Sep-13
	Proceeds	$	323,542	$	68,892
	Gross gains		1,175		1,038
	Gross losses		1,129	---
	The tax provision related to these net realized gains was $18 and $400, respectively.
	The fair value of available for sale securities at September 30, 2014 by contractual maturity were as follows. Securities not due at a single maturity date, primarily mortgage-backed securities, are shown separately.
				Amortized
	Investment securities available for sale:	Fair Value		Cost
	Due in one year or less	$	-	$	-
	Due after one year through five years		2,116		2,016
	Due after five years through ten years		16,933		16,302
	Due after ten years through thirty years		19,955		19,316
	Mortgage backed securities		496,763		496,623
	Total available-for-sale	$	535,767	$	534,257
	Available for sale securities pledged at September 30, 2014 and December 31, 2013 had a carrying amount (estimated fair value) of $139,135 and $108,871 respectively. These securities were pledged primarily to secure public deposits and repurchase agreements.
	At September 30, 2014 and December 31, 2013, there were no holdings of securities of any one issuer, other than mortgage backed securities issued by U.S. Government sponsored entities and agencies, in an amount greater than 10% of stockholders’ equity.
	The following tables show the Company’s available for sale investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2014 and December 31, 2013.
		30-Sep-14
		Less than 12 months				12 months or more				Total
				Unrealized				Unrealized				Unrealized
		Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
	Mortgage backed securities	$	58,242	$	265	$	140,972	$	4,665	$	199,214	$	4,930
	Municipal securities		-		-		3,873		103		3,873		103
	Total temporarily impaired
	available-for-sale securities	$	58,242	$	265	$	144,845	$	4,768	$	203,087	$	5,033
		31-Dec-13
		Less than 12 months				12 months or more				Total
				Unrealized				Unrealized				Unrealized
		Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
	Mortgage backed securities	$	239,641	$	10,221	$	18,793	$	2,175	$	258,434	$	12,396
	Municipal securities		7,603		333		1,010		115		8,613		448
	Total temporarily impaired
	available-for-sale securities	$	247,244	$	10,554	$	19,803	$	2,290	$	267,047	$	12,844
	At September 30, 2014, 100% of the mortgage-backed securities held by the Company were issued by U.S. government-sponsored entities and agencies, primarily Fannie Mae, Freddie Mac, and Ginnie Mae, institutions which the government has affirmed its commitment to support. 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 September 30, 2014.
	Unrealized losses on municipal securities have not been recognized into income because the issuers bonds are of high quality, and because management does not intend to sell these investments or more likely than not will not be required to sell these investments before their anticipated recovery. The fair value is expected to recover as the securities approach maturity.
	Held-to-Maturity
	The following reflects the fair value of held to maturity securities and the related gross unrecognized gains and losses as of September 30, 2014. There were no securities held to maturity as of December 31, 2013.
		30-Sep-14
				Gross		Gross
		Amortized		Unrecognized		Unrecognized		Fair
		Cost		Gains		Losses		Value
	Municipal securities	$	5,372	$	56	$	-	$	5,428
	Total held-to-maturity	$	5,372	$	56	$	-	$	5,428
There were no held to maturity securities pledged at September 30, 2014 or December 31, 2013. At September 30, 2014, there were no holdings of held to maturity securities of any one issuer in an amount greater than 10% of stockholders’ equity. There were no held to maturity investments with gross unrealized losses at September 30, 2014. The fair value of held to maturity securities at September 30, 2014 by contractual maturity were as follows:
			Amortized
Investment securities held to maturity	Fair Value		Cost
Due after ten years through thirty years	$	5,428	$	5,372
Total held-to-maturity	$	5,428	$	5,372

Loans

Loans	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Loans	'
	NOTE 6: Loans
	The following table sets forth information concerning the loan portfolio by collateral types as of the dates indicated.
			30-Sep-14			31-Dec-13
	Loans excluding PCI loans
	Real estate loans
	Residential		$	572,244		$	458,331
	Commercial			1,136,595			528,710
	Land, development and construction			78,514			62,503
	Total real estate			1,787,353			1,049,544
	Commercial			282,753			143,263
	Consumer and other loans			55,527			49,547
	Loans before unearned fees and deferred cost			2,125,633			1,242,354
	Net unearned fees and costs			856			404
	Total loans excluding PCI loans			2,126,489			1,242,758
	PCI loans (note 1)
	Real estate loans
	Residential			106,335			120,030
	Commercial			165,006			100,012
	Land, development and construction			26,250			6,381
	Total real estate			297,591			226,423
	Commercial			11,226			3,850
	Consumer and other loans			821			1,148
	Total PCI loans			309,638			231,421
	Total loans			2,436,127			1,474,179
	Allowance for loan losses for loans that are not PCI loans			(19,035	)		(19,694	)
	Allowance for loan losses for PCI loans			(807	)		(760	)
	Total loans, net of allowance for loan losses		$	2,416,285		$	1,453,725
	The following sets forth the covered FDIC loans included in the table above.
			30-Sep-14			31-Dec-13
	FDIC covered loans that are not PCI loans
	Real estate loans
	Residential		$	4,719		$	-
	Commercial			34,747			-
	Land, development and construction			867			-
	Total real estate			40,333			-
	Commercial			1,382			-
	Consumer and other loans			-			-
	FDIC covered loans, excluding PCI loans			41,715			-
	FDIC covered PCI loans (note 1)
	Real estate loans
	Residential			102,262			120,030
	Commercial			137,783			100,012
	Land, development and construction			17,965			6,381
	Total real estate			258,010			226,423
	Commercial			6,679			3,850
	Consumer and other loans			-		---
	Total FDIC covered PCI loans			264,689			230,273
	Total FDIC covered loans			306,404			230,273
	Allowance for loan losses for FDIC covered loans that are not PCI loans			-			-
	Allowance for loans losses for FDIC covered			(807	)		(760	)
	Total covered loans, net of allowance  for loan losses		$	305,597		$	229,513
	note 1:	Purchased credit impaired (“PCI”) loans are being accounted for pursuant to ASC Topic 310-30.
	The Company acquired FDIC covered loans that are not PCI loans pursuant to the acquisition of FSB on June 1, 2014. Prior to the FSB acquisition, the Company’s FDIC covered loans were all PCI loans.
	The table below set forth the activity in the allowance for loan losses for the periods presented.
	Three months ended September 30, 2014		Allowance for loan losses for loans that are not PCI loans			Allowance for loan losses on PCI loans			Total
	Balance at beginning of period		$	18,240		$	960		$	19,200
	Loans charged-off			(869	)		-			(869	)
	Recoveries of loans previously charged-off			556			-			556
	Net charge-offs			(313	)		-			(313	)
	Provision for loan losses			1,108			(153	)		955
	Balance at end of period		$	19,035		$	807		$	19,842
	Three months ended September 30, 2013
	Balance at beginning of period		$	21,800		$	2,020		$	23,820
Loans charged-off			(1,570	)		-			(1,570	)
Recoveries of loans previously charged-off			344			-			344
Net charge-offs			(1,226	)		-			(1,226	)
Provision for loan losses			(1,309	)		36			(1,273	)
Balance at end of period		$	19,265		$	2,056		$	21,321
Nine months ended September 30, 2014		Allowance for loan losses for loans that are not PCI loans			Allowance for loan losses on PCI loans			Total
Balance at beginning of period		$	19,694		$	760		$	20,454
Loans charged-off			(2,931	)		-			(2,931	)
Recoveries of loans previously charged-off			1,511			-			1,511
Net charge-offs			(1,420	)		-			(1,420	)
Provision for loan losses			761			47			808
Balance at end of period		$	19,035		$	807		$	19,842
Nine months ended September 30, 2013
Balance at beginning of period		$	24,033		$	2,649		$	26,682
Loans charged-off			(5,404	)		(515	)		(5,919	)
Recoveries of loans previously charged-off			817			-			817
Net charge-offs			(4,587	)		(515	)		(5,102	)
Provision for loan losses			(181	)		(78	)		(259	)
Balance at end of period		$	19,265		$	2,056		$	21,321
The following tables present the activity in the allowance for loan losses by portfolio segment for the periods presented.
		Real Estate Loans
		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses for loans that are not PCI loans:
Three months ended September 30, 2014
Beginning of the period		$	7,819		$	7,544		$	634		$	1,100		$	1,143		$	18,240
Charge-offs			(260	)		(37	)		(24	)		(327	)		(221	)		(869	)
Recoveries			349			107			45			15			40			556
Provision for loan losses			(1,415	)		1,133			154			1,032			204			1,108
Balance at end of period		$	6,493		$	8,747		$	809		$	1,820		$	1,166		$	19,035
Three months ended September 30, 2013
Beginning of the period		$	9,791		$	6,026		$	4,071		$	1,064		$	848		$	21,800
Charge-offs			(1,147	)		(53	)		(127	)		(53	)		(190	)		(1,570	)
Recoveries			163			42			41			22			76			344
Provision for loan losses			844			(1,431	)		(644	)		(146	)		68			(1,309	)
Balance at end of period		$	9,651		$	4,584		$	3,341		$	887		$	802		$	19,265
		Real Estate Loans
		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses for loans that are PCI loans:
Three months ended September 30, 2014
Beginning of the period		$	-		$	522		$	77		$	361		$	-		$	960
Charge-offs			-			-			-			-			-			-
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			(27	)		(47	)		(79	)		-			(153	)
Balance at end of period		$	-		$	495		$	30		$	282		$	-		$	807
Three months ended September 30, 2013
Beginning of the period		$	-		$	1,577		$	130		$	313		$	-		$	2,020
Charge-offs			-			-			-			-			-			-
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			(190	)		(8	)		234			-			36
Balance at end of period		$	-		$	1,387		$	122		$	547		$	-		$	2,056
		Real Estate Loans
		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses for loans that are not PCI loans:
Nine months ended September 30, 2014
Beginning of the period		$	8,785		$	6,441		$	3,069		$	510		$	889		$	19,694
Charge-offs			(1,175	)		(352	)		(124	)		(594	)		(686	)		(2,931	)
Recoveries			784			482			93			19			133			1,511
Provision for loan losses			(1,901	)		2,176			(2,229	)		1,885			830			761
Balance at end of period		$	6,493		$	8,747		$	809		$	1,820		$	1,166		$	19,035
Nine months ended September 30, 2013
Beginning of the period		$	6,831		$	8,272		$	6,211		$	1,745		$	974		$	24,033
Charge-offs			(3,328	)		(1,127	)		(310	)		(112	)		(527	)		(5,404	)
Recoveries			396			82			161			43			135			817
Provision for loan losses			5,752			(2,643	)		(2,721	)		(789	)		220			(181	)
Balance at end of period		$	9,651		$	4,584		$	3,341		$	887		$	802		$	19,265
		Real Estate Loans
		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses for loans that are PCI loans:
Nine months ended September 30, 2014
Beginning of the period		$	-		$	138		$	89		$	533		$	-		$	760
Charge-offs			-			-			-			-			-			-
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			357			(59	)		(251	)		-			47
Balance at end of period		$	-		$	495		$	30		$	282		$	-		$	807
Nine months ended September 30, 2013
Beginning of the period		$	-		$	2,335		$	-		$	314		$	-		$	2,649
Charge-offs			-			(515	)		-			-			-			(515	)
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			(433	)		122			233			-			(78	)
Balance at end of period		$	-		$	1,387		$	122		$	547		$	-		$	2,056
The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2014 and December 31, 2013. Accrued interest receivable and unearned loan fees and costs are not included in the recorded investment because they are not material.
		Real Estate Loans
As of September 30, 2014		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses:
Ending allowance balance attributable to loans:
Individually evaluated for impairment		$	435		$	1,151		$	372		$	3		$	16		$	1,977
Collectively evaluated for impairment			6,058			7,596			437			1,817			1,150			17,058
Purchased credit impaired			-			495			30			282			-			807
Total ending allowance balance		$	6,493		$	9,242		$	839		$	2,102		$	1,166		$	19,842
Loans:
Individually evaluated for impairment		$	9,764		$	11,695		$	2,975		$	2,010		$	251		$	26,695
Collectively evaluated for impairment			562,480			1,124,900			75,539			280,743			55,276			2,098,938
Purchased credit impaired			106,335			165,006			26,250			11,226			821			309,638
Total ending loan balances		$	678,579		$	1,301,601		$	104,764		$	293,979		$	56,348		$	2,435,271
	Real Estate Loans
As of December 31, 2013		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses:
Ending allowance balance attributable to loans:
Individually evaluated for impairment		$	395		$	1,377		$	16		$	2		$	21		$	1,811
Collectively evaluated for impairment			8,390			5,064			3,053			508			868			17,883
Purchased credit impaired		-				138			89			533		-				760
Total ending allowance balance		$	8,785		$	6,579		$	3,158		$	1,043		$	889		$	20,454
Loans:
Individually evaluated for impairment		$	8,610		$	12,564		$	1,307		$	1,297		$	332		$	24,110
Collectively evaluated for impairment			449,721			516,146			61,196			141,966			49,215			1,218,244
Purchased credit impaired			120,030			100,012			6,381			3,850			1,148			231,421
Total ending loan balance		$	578,361		$	628,722		$	68,884		$	147,113		$	50,695		$	1,473,775
Loans collectively evaluated for impairment reported at September 30, 2014 include loans acquired from FSB on June 1, 2014 and from Gulfstream (“GSB”) on January 17, 2014 that are not PCI loans. These loans are performing loans recorded at estimated fair value at the acquisition date. The fair value adjustment for loans acquired from GSB at the acquisition date was approximately $7,680, or approximately 2.3% of the outstanding aggregate loan balances. This amount is accreted into interest income over the remaining lives of the related loans on a level yield basis, but remains adequate at September 30, 2014, and therefore no provision for loan loss was recorded related to these loans at September 30, 2014.  The fair value adjustment for loans acquired from FSB at the acquisition date was approximately $9,725, or approximately 2.0% of the outstanding aggregate loan balances. This amount is accreted into interest income over the remaining lives of the related loans on a level yield basis, but remains adequate at September 30, 2014, and therefore no provision for loan loss was recorded related to these loans at September 30, 2014.
The table below summarizes impaired loan data for the periods presented.
		30-Sep-14			31-Dec-13
Performing TDRs (these are not included in nonperforming loans ("NPLs"))		$	11,951		$	10,763
Nonperforming TDRs (these are included in NPLs)			3,055			4,684
Total TDRs (these are included in impaired loans)			15,006			15,447
Impaired loans that are not TDRs			11,689			8,663
Total impaired loans		$	26,695		$	24,110
In certain situations it has become more common to restructure or modify the terms of certain loans under certain conditions (i.e. troubled debt restructure or “TDRs”). In those circumstances it may be beneficial to restructure the terms of a loan and work with the borrower for the benefit of both parties, versus forcing the property into foreclosure and having to dispose of it in an unfavorable real estate market. When the terms of a loan have been modified, usually the monthly payment and/or interest rate is reduced for generally twelve to twenty-four months. Material principal amounts on any loan modifications have not been forgiven to date.
TDRs as of September 30, 2014 and December 31, 2013 quantified by loan type classified separately as accrual (performing loans) and non-accrual (non performing loans) are presented in the tables below.
As of September 30, 2014		Accruing			Non Accrual			Total
Real estate loans:
Residential		$	7,587		$	1,197		$	8,784
Commercial			2,864			1,635			4,499
Land, development, construction			579			142			721
Total real estate loans			11,030			2,974			14,004
Commercial			714			37			751
Consumer and other			207			44			251
Total TDRs		$	11,951		$	3,055		$	15,006
As of December 31, 2013		Accruing			Non-Accrual			Total
Real estate loans:
Residential		$	7,221		$	1,389		$	8,610
Commercial			2,169			3,077			5,246
Land, development, construction			608			47			655
Total real estate loans			9,998			4,513			14,511
Commercial			555			49			604
Consumer and other			210			122			332
Total TDRs		$	10,763		$	4,684		$	15,447
Our policy is to return non accrual TDR loans to accrual status when all the principal and interest amounts contractually due, pursuant to its modified terms, are brought current and future payments are reasonably assured. Our policy also considers the payment history of the borrower, but is not dependent upon a specific number of payments. The Company recorded a provision for loan loss expense of $126 and $342 and partial charge offs of $63 and $161 on the TDR loans described above during the three and nine month periods ending September 30, 2014.
Loans are modified to minimize loan losses when we believe the modification will improve the borrower’s financial condition and ability to repay the loan. We typically do not forgive principal. We generally either reduce interest rates or decrease monthly payments for a temporary period of time and those reductions of cash flows are capitalized into the loan balance. We may also extend maturities, convert balloon loans to longer term amortizing loans, or vice versa, or change interest rates between variable and fixed rate. Each borrower and situation is unique and we try to accommodate the borrower and minimize the Company’s potential losses. Approximately 80% of our TDRs are current pursuant to their modified terms, and $3,055, or approximately 20% of our total TDRs are not performing pursuant to their modified terms. There does not appear to be any significant difference in success rates with one type of concession versus another.
The following table presents loans by class modified and for which there was a payment default within twelve months following the modification during the periods ending September 30, 2014 and 2013.
		Period ending						Period ending
		30-Sep-14						30-Sep-13
		Number			Recorded			Number			Recorded
		of loans			investment			of loans			investment
Residential			-		$	-			3		$	562
Commercial real estate			3			566			5			1,662
Land, development, construction			1			142			-			-
Commercial and Industrial			-			-			1			25
Consumer and other			-			-			1			18
Total			4		$	708			10		$	2,267
The Company recorded a provision for loan loss expense of $62 and $66 and partial charge offs of $31 and $40 on TDR loans that subsequently defaulted as described above during the three and nine month periods ending September 30, 2014.
The following tables present loans individually evaluated for impairment by class of loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans accounted for pursuant to ASC Topic 310-30. The recorded investment is less than the unpaid principal balance due to partial charge-offs.
As of September 30, 2014		Unpaid principal balance			Recorded investment			Allowance for loan losses allocated
With no related allowance recorded:
Residential real estate		$	6,551		$	6,434		$	-
Commercial real estate			5,782			5,651			-
Land, development, construction			2,432			1,825			-
Commercial and industrial			1,912			1,778			-
Consumer, other			-			-			-
With an allowance recorded:
Residential real estate			3,482			3,330			435
Commercial real estate			6,364			6,044			1,151
Land, development, construction			1,192			1,150			372
Commercial and industrial			279			232			3
Consumer, other			268			251			16
Total		$	28,262		$	26,695		$	1,977
As of December 31, 2013		Unpaid principal balance			Recorded investment			Allowance for loan losses allocated
With no related allowance recorded:
Residential real estate		$	5,052		$	4,803		$	-
Commercial real estate			9,330			7,439		-
Land, development, construction			1,377			1,168		-
Commercial and industrial			1,330			1,241		-
Consumer, other			5			5		-
With an allowance recorded:
Residential real estate			3,942			3,807			395
Commercial real estate			5,257			5,125			1,377
Land, development, construction			147			139			16
Commercial and industrial			102			56			2
Consumer, other			340			327			21
Total		$	26,882		$	24,110		$	1,811
Three month period ending September, 30, 2014		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
Real estate loans:
Residential		$	9,745		$	83		$	-
Commercial			12,362			39			-
Land, development, construction			2,521			11			-
Total real estate loans			24,628			133			-
Commercial and industrial			2,068			19			-
Consumer and other loans			283			3			-
Total		$	26,979		$	155		$	-
Nine month period ending September, 30, 2014		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
Real estate loans:
Residential		$	9,488		$	247		$	-
Commercial			12,614			110			-
Land, development, construction			1,894			30			-
Total real estate loans			23,996			387			-
Commercial and industrial			2,107			58			-
Consumer and other loans			310			9			-
Total		$	26,413		$	454		$	-
Three month period ending September, 30, 2013		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
Real estate loans:
Residential		$	8,829		$	78		$	-
Commercial			26,960			295			-
Land, development, construction			1,436			2			-
Total real estate loans			37,225			375			-
Commercial and industrial			1,710			12			-
Consumer and other loans			351			3			-
Total		$	39,286		$	390		$	-
Nine month period ending September, 30, 2013		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
Real estate loans:
Residential		$	9,014		$	222		$	-
Commercial			28,134			840			-
Land, development, construction			1,423			10			-
Total real estate loans			38,571			1,072			-
Commercial and industrial			1,984			28			-
Consumer and other loans			369			8			-
Total		$	40,924		$	1,108		$	-
Nonperforming loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans, excluding purchased credit impaired loans accounted for pursuant to ASC Topic 310-30.
Nonperforming loans were as follows:		30-Sep-14			31-Dec-13
Non accrual loans		$	31,067		$	27,077
Loans past due over 90 days and still accruing interest			-			-
Total non performing loans		$	31,067		$	27,077
The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans:
As of September 30, 2014		Nonaccrual			Loans past due over 90 days still accruing
Residential real estate		$	11,215		$	-
Commercial real estate			13,253			-
Land, development, construction			2,820			-
Commercial			3,514			-
Consumer, other			265			-
Total		$	31,067		$	-
As of December 31, 2013		Nonaccrual			Loans past due over 90 days still accruing
Residential real estate		$	10,162		$	-
Commercial real estate			13,925			-
Land, development, construction			1,099			-
Commercial			1,582			-
Consumer, other			309			-
Total		$	27,077		$	-
The following table presents the aging of the recorded investment in past due loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans:
									Accruing Loans
		Total				30 - 59 days past due			60 - 89 days past due			Greater than 90 days past due			Total Past Due			Loans Not Past Due		Nonaccrual Loans
As of September 30, 2014
Residential real estate		$	572,244			$	3,801		$	1,020		$	-		$	4,821		$	556,208	$	11,215
Commercial real estate			1,136,595				3,568			588			-			4,156			1,119,186		13,253
Land/dev/construction			78,514				894			15			-			909			74,785		2,820
Commercial			282,753				1,273			44			-			1,317			277,922		3,514
Consumer			55,527				363			83			-			446			54,816		265
		$	2,125,633			$	9,899		$	1,750		$	-		$	11,649		$	2,082,917	$	31,067
									Accruing Loans
		Total				30 - 59 days past due			60 - 89 days past due			Greater than 90 days past due			Total Past Due			Loans Not Past Due		Nonaccrual Loans
As of December 31, 2013
Residential real estate		$	458,331			$	2,801		$	1,942		$        -			$	4,743		$	443,426	$	10,162
Commercial real estate			528,710				2,420			1,941		-				4,361			510,424		13,925
Land/dev/construction			62,503				136			241		-				377			61,027		1,099
Commercial			143,263				491			1		-				492			141,189		1,582
Consumer			49,547				295			240		-				535			48,703		309
		$	1,242,354			$	6,143		$	4,365		$        -			$	10,508		$	1,204,769	$	27,077
Credit Quality Indicators:
The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans as to credit risk. This analysis includes loans with an outstanding balance greater than $500 that are non-homogeneous loans, such as commercial, commercial real estate, land, land development and construction loans. This analysis is performed on at least an annual basis. The Company uses the following definitions for risk ratings:
Special Mention: Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date.
Substandard: Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.
Doubtful: Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.
Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans. As of September 30, 2014 and December 31, 2013, and based on the most recent analysis performed, the risk category of loans by class of loans, excluding purchased credit impaired loans accounted for pursuant to ASC Topic 310-30:
					As of September 30, 2014
Loan Category		Pass			Special Mention			Substandard			Doubtful
Residential real estate		$	545,003		$	5,376		$	21,865		$	-
Commercial real estate			1,065,525			36,031			35,039			-
Land/dev/construction			64,286			9,967			4,261			-
Commercial			275,095			3,119			4,539			-
Consumer			54,910			283			334			-
Total		$	2,004,819		$	54,776		$	66,038		$	-
					As of December 31, 2013
Loan Category		Pass			Special Mention			Substandard			Doubtful
Residential real estate		$	428,671		$	6,438		$	23,222		$   -
Commercial real estate			448,762			46,427			33,521		-
Land/dev/construction			50,164			9,566			2,773		-
Commercial			134,901			4,490			3,872		-
Consumer			49,448			526			573		-
Total		$	1,111,946		$	67,447		$	63,961		$	-
The Company considers the performance of the loan portfolio and its impact on the allowance for loan losses. For residential and consumer loan classes, the Company also evaluates credit quality based on the aging status of the loan, which was previously presented, and by payment activity. The following table presents the recorded investment in residential and consumer loans, excluding purchased credit impaired loans, based on payment activity as of September 30, 2014 and December 31, 2013:
As of September 30, 2014		Residential			Consumer
Performing		$	561,029		$	55,262
Nonperforming			11,215			265
Total		$	572,244		$	55,527
As of December 31, 2013		Residential			Consumer
Performing		$	448,169		$	49,238
Nonperforming			10,162			309
Total		$	458,331		$	49,547
Purchased Credit Impaired (“PCI”) loans:
Income is recognized on PCI loans pursuant to ASC Topic 310-30. A portion of the fair value discount has been ascribed as an accretable yield that is accreted into interest income over the estimated remaining life of the loans. The remaining non-accretable difference represents cash flows not expected to be collected.
The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and carrying value of the loans as of September 30, 2014 and December 31, 2013. Contractually required principal and interest payments have been adjusted for estimated prepayments.
		30-Sep-14			31-Dec-13
Contractually required principal and interest		$	509,272		$	389,537
Non-accretable difference			(73,791	)		(55,304	)
Cash flows expected to be collected			435,481			334,233
Accretable yield			(125,843	)		(102,812	)
Carrying value of acquired loans			309,638			231,421
Allowance for loan losses			(807	)		(760	)
Carrying value less allowance for loan losses		$	308,831		$	230,661
We adjusted our estimates of future expected losses, cash flows and renewal assumptions during the current quarter. These adjustments resulted in an increase in expected cash flows and accretable yield, and a decrease in the non-accretable difference. We reclassified approximately $1,727 and $16,967 from non-accretable difference to accretable yield during the three and nine month periods ending September 30, 2014, respectively, to reflect our adjusted estimates of future expected cash flows. The table below summarizes the changes in total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and carrying value of the loans during the three and nine month periods ending September 30, 2014 and 2013.
Activity during the					Effect of			income			all other
three month period ending September 30, 2014		30-Jun-14			acquisitions			accretion			adjustments			30-Sep-14
Contractually required principal and interest		$	566,948		$	-		$	-		$	(57,676	)	$	509,272
Non-accretable difference			(79,985	)		-			-			6,194			(73,791	)
Cash flows expected to be collected			486,963			-			-			(51,482	)		435,481
Accretable yield			(133,093	)		-			9,099			(1,849	)		(125,843	)
Carry value of acquired loans		$	353,870		$	-		$	9,099		$	(53,331	)	$	309,638
Activity during the					Effect of			income			all other
nine month period ending September 30, 2014		31-Dec-13			acquisitions			accretion			adjustments			30-Sep-14
Contractually required principal and interest		$	389,537		$	229,249		$	-		$	(109,514	)	$	509,272
Non-accretable difference			(55,304	)		(45,293	)		-			26,806			(73,791	)
Cash flows expected to be collected			334,233			183,956			-			(82,708	)		435,481
Accretable yield			(102,812	)		(32,204	)		25,561			(16,388	)		(125,843	)
Carry value of acquired loans		$	231,421		$	151,752		$	25,561		$	(99,096	)	$	309,638
Activity during the					income			all other
three month period ending September 30, 2013		30-Jun-13			accretion			adjustments			30-Sep-13
Contractually required principal and interest		$	449,146		$	-		$	(32,581	)	$	416,565
Non-accretable difference			(90,060	)		-			18,250			(71,810	)
Cash flows expected to be collected			359,086			-			(14,331	)		344,755
Accretable yield			(99,407	)		8,988			(10,186	)		(100,605	)
Carry value of acquired loans		$	259,679		$	8,988		$	(24,517	)	$	244,150
Activity during the					income			all other
nine month period ending September 30, 2013		31-Dec-12			accretion			adjustments			30-Sep-13
Contractually required principal and interest		$	534,989		$	-		$	(118,424	)	$	416,565
Non-accretable difference			(142,855	)		-			71,045			(71,810	)
Cash flows expected to be collected			392,134			-			(47,379	)		344,755
Accretable yield			(93,107	)		24,835			(32,333	)		(100,605	)
Carry value of acquired loans		$	299,027		$	24,835		$	(79,712	)	$	244,150

FDIC_Indemnification_Asset

FDIC Indemnification Asset	9 Months Ended
	Sep. 30, 2014
Fdic Loss Share Indemnification Asset [Abstract]	'
FDIC Indemnification Asset	'
	NOTE 7: FDIC indemnification asset
	The FDIC indemnification asset represents the estimated amounts due from the FDIC pursuant to the Loss Share Agreements related to the acquisition of the three failed banks acquired in 2010, the acquisition of two failed banks in 2012 and the assumption of Loss Share Agreements of two failed banks assumed by the Company pursuant to its acquisition of First Southern Bank in June 2014. The activity in the FDIC loss share indemnification asset is as follows (certain items related to true-up payment liabilities per the FDIC agreements, which had previously been netted with the FDIC indemnification asset, have been reclassified as a separate liability):
		Nine month period ended Sep 30, 2014			Twelve month period ended Dec 31, 2013
	Beginning of the year	$	73,877		$	119,691
	Effect of acquisition		2,636			-
	Amortization, net		(15,097	)		(13,765	)
	Indemnification revenue		1,864			6,055
	Indemnification of foreclosure expense		307			4,413
	Proceeds from FDIC		(9,593	)		(42,004	)
	Impairment (recovery) of loan pool		38			(513	)
	Period end balance	$	54,032		$	73,877
	The FDIC agreements allow for the recovery of some payments made for loss share reimbursements under certain conditions based on the actual performance of the portfolios acquired. This true-up payment is estimated and accrued for as part of the overall FDIC indemnification asset analysis and is reflected as a separate liability. The accrual for this liability is reflected as additional amortization income or expense in noninterest income. The activity in the true-up payment liability is as follows:
		Nine month period ended Sep 30, 2014			Twelve month period ended Dec 31, 2013
	Beginning of the year	$	444		$	402
	Effect of acquisition		682			-
	True-up liability accrual		47			42
	Period end balance	$	1,173		$	444
	Impairment of loan pools
	When a loan pool (with loss share) is impaired, the impairment expense is included in provision for loan losses, and the percentage of that loss to be reimbursed by the FDIC is recognized as income from FDIC reimbursement, and included in this line item. During the nine month period ended September 30, 2014, the estimated amount of impairment increased, which resulted in an additional $38 of indemnification income recognition.
	Indemnification revenue
	Indemnification revenue represents the percentage of the cost incurred that is reimbursable by the FDIC pursuant to the related Loss Share Agreement for expenses related to the repossession process and losses incurred on the sale of OREO, or writedown of OREO values to current fair value.
	Amortization, net
	On the date of an FDIC acquisition, the Company estimates the amount and the timing of expected future losses that will be covered by the FDIC loss sharing agreements. The FDIC indemnification asset is initially recorded as the discounted value of the reimbursement of losses from the FDIC. Discount accretion is recognized over the estimated period of losses. The Company also updates its estimate of future losses and the timing of the losses each quarter. To the extent management estimates that future losses are less than initial estimate of future losses, management adjusts its estimates of future expected reimbursements and any decrease in the expected future reimbursements is amortized over the shorter of the loss share period or the life of the related loan by amortization in this line item. Based upon the most recent estimate of future losses, the Company expects less reimbursements from the FDIC and is amortizing the estimated reduction as described in the previous sentence.
	Indemnification of foreclosure expense
	Indemnification of foreclosure expense represents the percentage of foreclosure related expenses incurred and reimbursable from the FDIC. Foreclosure expense is included in non interest expense. The amount of the reimbursable portion of the expense reduces foreclosure expense included in non interest expense.

Business_Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	NOTE 8: Business Combinations
	Acquisition of Gulfstream Bancshares, Inc.
	On January 17, 2014, the Company completed its previously announced acquisition of Gulfstream Bancshares, Inc. (“Gulfstream”) whereby Gulfstream merged with and into the Company. Pursuant to and simultaneously with the merger of Gulfstream with and into the Company, Gulfstream’s wholly owned subsidiary bank, Gulfstream Business Bank (“GSB”), merged with and into the Company’s subsidiary bank, CenterState Bank of Florida, N.A.
	The Company’s primary reasons for the transaction were to further solidify its market share in the southeast Florida market and expand its customer base to enhance deposit fee income and leverage operating cost through economies of scale. The acquisition increased the Company’s total assets and total deposits by approximately 23% and 23%, respectively, as compared with the balances at December 31, 2013, and is expected to positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.
	The acquisition was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill on this acquisition of $31,516, after consideration of a measurement period adjustment discussed below, which is nondeductible for tax purposes as this acquisition is a nontaxable transaction. The goodwill is calculated based on the fair values of the assets acquired and liabilities assumed as of the acquisition date. Fair value estimates are based on the information available, and are subject to change for up to one year after the closing date of the acquisition as additional information relative to closing date fair values becomes available. Fair values are preliminary estimates due to pending appraisals on loans and other real estate owned.
	The Company acquired 100% of the outstanding common stock of Gulfstream. The purchase price consisted of both cash and stock. Each share of Gulfstream common stock was exchanged for $14.65 cash and 3.012 shares of the Company’s common stock. Based on the closing price of the Company’s common stock on January 16, 2014, the resulting purchase price was $82,040. The table below summarizes the purchase price calculation.
	Number of shares of Gulfstream common stock outstanding at January 16, 2014		1,569,364
	Gulfstream preferred shares that convert to Gulfstream common shares upon a change in control		155,629
	Total Gulfstream common shares including conversion of preferred shares		1,724,993
	Per share exchange ratio		3.012
	Number of shares of CenterState common stock less 138 of fractional shares		5,195,541
	Multiplied by CenterState common stock price per share on January 16, 2014	$	10.23
	Fair value of CenterState common stock issued	$	53,150
	Total Gulfstream common shares including conversion of preferred shares		1,724,993
	Multiplied by the cash consideration each Gulfstream share is entitled to receive	$	14.65
	Total Cash Consideration, not including cash for fractional shares	$	25,271
	Total Stock Consideration	$	53,150
	Total Cash Consideration plus $2 for 138 of fractional shares		25,273
	Total consideration to be paid to Gulfstream common shareholders	$	78,423
	Fair value of current Gulfstream stock options to be converted to CenterState stock options		3,617
	Total purchase price	$	82,040
	The list below summarizes the preliminary estimates of the fair value of the assets purchased, including goodwill, and liabilities assumed as of the January 17, 2014 purchase date.
		Jan 17, 2014
	Assets:
	Cash and cash equivalents	$	102,278
	Loans, held for investment		329,515
	Purchased credit impaired loans		30,068
	Loans held for sale		247
	Investments		60,816
	Interest receivable		1,087
	Branch real estate		5,519
	Furniture and fixtures		262
	FHLB stock		885
	Bank owned life insurance		4,939
	Other repossessed real estate owned		2,694
	Core deposit intangible		4,173
	Goodwill		31,516
	Other assets		11,261
	Total assets acquired	$	585,260
	Liabilities:
	Deposits	$	478,999
	Federal Home loan advances		5,708
	Repurchase agreements		7,576
	Interest payable		125
	Official checks outstanding		826
	Corporate debentures		6,745
	Other liabilities		3,241
	Total liabilities assumed	$	503,220
	In the acquisition, the Company purchased $359,583 of loans at fair value, net of $18,267, or 4.8%, estimated discount to the outstanding principal balance, representing 24.4% of the Company’s total loans at December 31, 2013. Of the total loans acquired, management identified $30,068 with credit deficiencies. All loans that were on non-accrual status and all loan relationships that were greater than $500 and identified as impaired as of the acquisition date were considered by management to be credit impaired and are accounted for pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of January 17, 2014 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.
	Contractually required principal and interest	$	48,289
	Non-accretable difference		(11,766	)
	Cash flows expected to be collected		36,523
	Accretable yield		(6,455	)
	Total purchased credit-impaired loans acquired	$	30,068
	The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.
		Book				Fair value
		balance
	Loans:
	Single family residential real estate		$               33,506				$        32,319
	Commercial real estate		185,250				183,189
	Construction/development/land		30,387				27,704
	Commercial loans		85,940				84,203
	Consumer and other loans		2,112				2,100
Purchased credit-impaired		40,655				30,068
Total earning assets	$	377,850			$	359,583
In its assumption of the deposit liabilities, the Company believed the deposits assumed from the acquisition have an intangible value. The Company applied ASC Topic 805, which prescribes the accounting for goodwill and other intangible assets such as core deposit intangibles, in a business combination. The Company determined the estimated fair value of the core deposit intangible asset totaled $4,173, which will be amortized utilizing an accelerated amortization method over an estimated economic life not to exceed ten years. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.
Measurement period adjustments
On January 17, 2014 the Company purchased Gulfstream. As previously disclosed, the fair values initially assigned to the assets acquired and liabilities assumed were preliminary and subject to refinement for up to one year after the closing date of the acquisition as new information relative to closing date fair values became available. Based on appraisals received subsequent to the acquisition date, the Company adjusted its initial fair value estimates of certain other real estate owned acquired.
	Jan 17, 2014				measurement			Jan 17, 2014
	(as initially reported)				period			(as adjusted)
					adjustments
Assets:
Cash and cash equivalents	$	102,278			$	—		$	102,278
Loans, held for investment		329,515							329,515
Purchased credit impaired loans		30,068							30,068
Loans held for sale		247							247
Investments		60,816							60,816
Interest receivable		1,087							1,087
Branch real estate		5,519							5,519
Furniture and fixtures		262							262
FHLB stock		885							885
Bank owned life insurance		4,939							4,939
Other repossessed real estate owned		3,365				(671	)		2,694
Core deposit intangible		4,173							4,173
Goodwill		31,104				412			31,516
Other assets		11,002				259			11,261
Total assets acquired	$	585,260			$	—		$	585,260
Liabilities:
Deposits	$	478,999			$	—		$	478,999
Federal Home loan advances		5,708							5,708
Repurchase agreements		7,576							7,576
Interest payable		125							125
Official checks outstanding		826							826
Trust Preferred Security		6,745							6,745
Other liabilities		3,241							3,241
Total liabilities assumed	$	503,220			$	—		$	503,220
Acquisition of First Southern Bancorp, Inc.
On June 1, 2014, the Company completed its previously announced acquisition of First Southern Bancorp, Inc. (“FSB”) whereby FSB merged with and into the Company. Pursuant to and simultaneously with the merger of FSB with and into the Company, FSB’s subsidiary bank, First Southern Bank, merged with and into the Company’s subsidiary bank, CenterState Bank of Florida, N.A.
The Company’s primary reasons for the transaction were to further solidify its market share in the southeast Florida market as well as in central and northeastern Florida and expand its customer base to enhance deposit fee income and leverage operating cost through economies of scale. The acquisition increased the Company’s total assets and total deposits by approximately 32% and 33%, respectively, as compared with the balances at March 31, 2014, and is expected to positively affect the Company’s operating results to the extent the Company earns more from interest earning assets than it pays in interest on its interest bearing liabilities.
The acquisition was accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. The Company recognized goodwill on this acquisition of $541, which is nondeductible for tax purposes as this acquisition is a nontaxable transaction. The goodwill is calculated based on the fair values of the assets acquired and liabilities assumed as of the acquisition date. Fair value estimates are based on the information available, and are subject to change for up to one year after the closing date of the acquisition as additional information relative to closing date fair values becomes available. Fair values are preliminary estimates due to pending appraisals on loans and other real estate owned.
The Company acquired 100% of the outstanding common stock of FSB. The purchase price consisted of both cash and stock. Each share of FSB common stock was exchanged for $3.00 cash and 0.30 shares of the Company’s common stock. Based on the closing price of the Company’s common stock on May 30, 2014 (the last trading day prior to the June 1, 2014 acquisition date), the resulting purchase price was $195,404. The table below summarizes the purchase price calculation.
Number of shares of FSB common stock outstanding at May 30, 2014		31,539,698
FSB preferred shares that convert to FSB common shares upon a change in control		48,375
Total FSB common shares including conversion of preferred shares		31,588,073
Per share exchange ratio		0.3
Number of shares of CenterState common stock, less 377 of fractional shares		9,476,045
Multiplied by CenterState common stock price per share on May 30, 2014	$	10.62
Fair value of CenterState common stock issued	$	100,636
Total FSB common shares including conversion of preferred shares		31,588,073
Multiplied by the cash consideration each FSB share is entitled to receive	$	3
Total Cash Consideration, not including cash for fractional shares	$	94,765
Total Stock Consideration	$	100,636
Total Cash Consideration, plus $3 for 377 of fractional shares		94,768
Total purchase price	$	195,404
The list below summarizes the preliminary estimates of the fair value of the assets purchased, including goodwill, and liabilities assumed as of the June 1, 2014 purchase date.
	June 1, 2014
Assets:
Cash and cash equivalents	$	148,257
Loans, excluding purchased credit impaired loans		477,841
Purchased credit impaired loans		121,684
Investments		204,723
Interest receivable		2,007
Branch real estate		1,594
Furniture and fixtures		1,282
Bank property held for sale		7,119
Federal Reserve Bank and Federal Home Loan Bank stock		5,576
Bank owned life insurance		2,555
Other repossessed real estate owned covered by FDIC loss share agreements		22,731
Other repossessed real estate owned		454
Core deposit intangible		7,396
Goodwill		541
Deferred tax asset		43,889
Other assets		4,581
Total assets acquired	$	1,052,230
Liabilities:
Deposits	$	662,959
Deposits held for sale		189,674
Interest payable		58
Other liabilities		4,135
Total liabilities assumed	$	856,826
In the acquisition, the Company purchased $599,525 of loans at fair value, net of $30,811, or 4.9%, estimated discount to the outstanding principal balance, representing 33% of the Company’s total loans at March 31, 2014. Of the total loans acquired, management identified $121,684 with credit deficiencies. All loans that were on non-accrual status, all TDRs, all impaired loans, all loans previously identified by FSB with credit deficiencies and any other loan identified by the Company with a probable credit deficiency were considered by management to be credit impaired and are accounted for pursuant to ASC Topic 310-30. The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of June 1, 2014 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.
Contractually required principal and interest	$	180,960
Non-accretable difference		(33,527	)
Cash flows expected to be collected		147,433
Accretable yield		(25,749	)
Total purchased credit-impaired loans acquired	$	121,684
The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.
	Book				Fair
	balance				value
Loans:
Single family residential real estate	$	60,332			$	57,693
Commercial real estate		387,589				382,162
Construction/development/land		17,238				15,942
Commercial loans		20,267				19,906
Consumer and other loans		2,496				2,138
Purchased credit-impaired		142,414				121,684
Total earning assets	$	630,336			$	599,525
In its assumption of the deposit liabilities, the Company believed the deposits assumed from the acquisition have an intangible value. The Company applied ASC Topic 805, which prescribes the accounting for goodwill and other intangible assets such as core deposit intangibles, in a business combination. The Company determined the estimated fair value of the core deposit intangible asset totaled $7,396, which will be amortized utilizing an accelerated amortization method over an estimated economic life not to exceed ten years. In determining the valuation amount, deposits were analyzed based on factors such as type of deposit, deposit retention, interest rates and age of deposit relationships.
Pro-forma information
Pro-forma data for the three and nine month periods ending September 30, 2013 listed in the table below presents pro-forma information as if the Gulfstream and FSB acquisitions occurred at the beginning of 2013. The pro-forma information for the nine month periods ending September 30, 2014 assumes the FSB acquisition occurred at the beginning of 2013. Because the Gulfstream transaction closed on January 17, 2014 and its actual results are included in the Company’s actual operating results for 2014, its actual results were used in the table below for the nine month period ending September 30, 2014 instead of a pro-forma amount. Because the FSB transaction closed on June 1, 2014, there is no pro forma information for the three month period ending September 30, 2014 as both the Gulfstream and FSB actual results are included in the current reported figures.
		Three months ended Sep 30,		Nine months ended Sep 30,
		2013		2013		2014
Net interest income		$             39,500		$    114,335		$     110,247
Net income available to common shareholders		6,056		17,595		14,271
EPS - basic		$                 0.14		$          0.39		$           0.32
EPS - diluted		$                 0.13		$          0.39		$           0.32
Disposition of certain branches acquired pursuant to the FSB acquisition.
The Company consummated its previously announced sale of deposits and certain branch real estate acquired pursuant to its FSB acquisition. On September 18, 2014, the Company sold approximately $170 million of deposits from six prior FSB branches for a premium of 1.5% and the related real estate for five branch offices for approximately $6 million. On September 19, 2014, the Company also closed and consolidated four additional branch offices which were also acquired from FSB.

Recently_Issued_Accounting_Sta

Recently Issued Accounting Standards	9 Months Ended
	Sep. 30, 2014
Accounting Changes And Error Corrections [Abstract]	'
Recently Issued Accounting Standards	'
	NOTE 9: Recently Issued Accounting Standards
	ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” was a joint project initiated by the Financial Accounting Standards Board (FASB) and the International Accounting Standards Board (IASB) to clarify the principles for recognizing revenue and to develop a common revenue standard and disclosures for U.S. and international accounting standards that would: (1) remove inconsistencies and weaknesses in revenue requirements; (2) provide a more robust framework for addressing revenue issues; (3) improve comparability of revenue recognition practices across entities, industries, jurisdictions, and capital markets; (4) provide more useful information to users of financial statements through improved disclosure requirements and (5) simplify the preparation of financial statements by reducing the number of requirements to which an entity must refer. The guidance affects any entity that either enters into contracts with customers to transfer goods or services or enters into contracts for the transfer of nonfinancial assets. The core principle is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The guidance provides steps to follow to achieve the core principle. An entity should disclose sufficient information to enable users of financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from contracts with customers. Qualitative and quantitative information is required about contracts with customers, significant judgments and changes in judgments, and assets recognized from the costs to obtain or fulfill a contract. This ASU is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The Company is currently evaluating the effects of this guidance on its financial statements and disclosures, if any.

Common_Stock_Outstanding_and_E1

Common Stock Outstanding and Earnings Per Share Data (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Computations	'
	The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for the periods presented.
		Three months ended September 30,				Nine months ended September 30,
		2014		2013		2014		2013
	Numerator for basic and diluted earnings per share:
	Net income	$	3,593	$	3,109	$	5,683	$	10,443
	Denominator:
	Denominator for basic earnings per share
	- weighted-average shares		45,061,356		30,109,728		39,435,947		30,099,509
	Effect of dilutive securities:
	Stock options and stock grants		351,919		134,145		365,613		116,519
	Denominator for diluted earnings per share
	- adjusted weighted-average shares		45,413,275		30,243,873		39,801,560		30,216,028
	Basic earnings per share	$	0.08	$	0.1	$	0.14	$	0.35
	Diluted earnings per share	$	0.08	$	0.1	$	0.14	$	0.35

Fair_Value_Tables

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	The fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2). Assets and liabilities measured at fair value on a recurring basis are summarized below.
				Fair value measurements using
						Significant
				Quoted prices in		other				Significant
				active markets for		observable				unobservable
		Carrying		identical assets		inputs				inputs
		value		(Level 1)		(Level 2)				(Level 3)
	at September 30, 2014
	Assets:
	Trading securities	$	656	-		$	656			-
	Available for sale securities
	U.S. government sponsored entities and agencies		3	-			3			-
	Mortgage backed securities		496,763	-			496,763			-
	Municipal securities		39,000	-			39,000			-
	Interest rate swap derivatives		3,983	-			3,983			-
	Liabilities:
	Interest rate swap derivatives		4,398	-			4,398			-
	at December 31, 2013
	Assets:
	Trading securities	$      ---		-		$      ---				-
	Available for sale securities
	U.S. government sponsored entities and agencies		4	-			4			-
	Mortgage backed securities		416,881	-			416,881			-
	Municipal securities		40,201	-			40,201			-
	Interest rate swap derivatives		2,603	-			2,603			-
	Liabilities:
	Interest rate swap derivatives		2,496	-			2,496			-
Assets and Liabilities Measured at Fair Value on Non-Recurring Basis	'
	Assets and liabilities measured at fair value on a non-recurring basis are summarized below.
				Fair value measurements using
						Significant
				Quoted prices in		other		Significant
				active markets for		observable		unobservable
		Carrying		identical assets		inputs		inputs
		value		(Level 1)		(Level 2)		(Level 3)
	at September 30, 2014
	Assets:
	Impaired loans
	Residential real estate	$	3,086	-		-		$	3,086
	Commercial real estate		5,655	-		-			5,655
	Land, land development and construction		1,823	-		-			1,823
	Commercial		673	-		-			673
	Consumer		94	-		-			94
	Other real estate owned
	Residential real estate		388	-		-			388
	Commercial real estate		3,329	-		-			3,329
	Land, land development and construction		3,001	-		-			3,001
	Bank property held for sale		5,922	-		-			5,922
	at December 31, 2013
	Assets:
	Impaired loans
	Residential real estate	$	3,191	-		-		$	3,191
	Commercial real estate		7,515	-		-			7,515
	Land, land development and construction		290	-		-			290
	Commercial		731	-		-			731
	Consumer		157	-		-			157
	Other real estate owned
	Residential real estate		27	-		-			27
	Commercial real estate		3,837	-		-			3,837
	Land, land development and construction		3,949	-		-			3,949
	Bank property held for sale		1,582	-		-			1,582
Carrying Amounts and Estimated Fair Values of Company's Financial Instruments	'
	The following table presents the carry amounts and estimated fair values of the Company’s financial instruments:
				Fair value measurements
	at September 30, 2014	Carrying amount		Level 1				Level 2			Level 3		Total
	Financial assets:
	Cash and cash equivalents	$	210,566	$	210,566			$	-		$	-	$	210,566
	Trading securities		656		-				656			-		656
	Investment securities available for sale		535,767		-				535,767			-		535,767
	Investment securities held to maturity		5,372		-				5,428			-		5,428
	FHLB and FRB stock		17,176		-				-			-	n/a
	Loans held for sale		522		-				522			-		522
	Loans, less allowance for loan losses of $19,842		2,416,285		-				-			2,419,027		2,419,027
	FDIC indemnification asset		54,032		-				-			-	n/a
	Interest rate swap derivatives		3,983		-				3,983			-		3,983
	Accrued interest receivable		8,416		-				-			8,416		8,416
	Financial liabilities:
	Deposits- without stated maturities	$	2,578,156	$	2,578,156			$	-		$	-	$	2,578,156
	Deposits- with stated maturities		488,074		-				493,339			-		493,339
	Securities sold under agreement to repurchase		30,456		-				30,456			-		30,456
	Federal funds purchased		42,070		-				42,070			-		42,070
	Corporate debentures		23,873		-				-			19,646		19,646
	Interest rate swap derivatives		4,398		-				4,398			-		4,398
	Accrued interest payable		359		-				359			-		359
				Fair value measurements
	at December 31, 2013	Carrying amount		Level 1				Level 2			Level 3		Total
	Financial assets:
	Cash and cash equivalents	$	174,889	$	174,889			$	-		$	-	$	174,889
	Trading securities	-		-				-			-		-
	Investment securities available for sale		457,086	-					457,086		-			457,086
	FHLB and FRB stock		8,189	-				-			-		n/a
	Loans held for sale		1,010	-					1,010		-			1,010
	Loans, less allowance for loan losses of $20,454		1,453,725	-				-				1,456,295		1,456,295
	FDIC indemnification asset		73,877	-				-			-		n/a
	Interest rate swap derivatives		2,603	-					2,603		-			2,603
	Accrued interest receivable		6,337	-				-				6,337		6,337
	Financial liabilities:
	Deposits- without stated maturities	$	1,671,356	$	1,671,356			$	-		$	-	$	1,671,356
	Deposits- with stated maturities		384,875	-					389,115		-			389,115
	Securities sold under agreement to repurchase		20,457	-					20,457		-			20,457
	Federal funds purchased		29,909	-					29,909		-			29,909
	Corporate debentures		16,996	-				-				11,091		11,091
	Interest rate swap derivatives		2,496	-					2,496		-			2,496
	Accrued interest payable		333	-					333		-			333

Reportable_Segments_Tables

Reportable Segments (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Reconciliation of Reportable Segment Revenues, Expenses and Profit	'
	The table below is a reconciliation of the reportable segment revenues, expenses, and profit to the Company’s consolidated total for the three and nine month periods ending September 30, 2014 and 2013.
		Three month period ending September 30, 2014
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	36,541		$	806		$	-		$	-		$	37,347
	Interest expense		(1,852	)		(5	)		(240	)		-			(2,097	)
	Net interest income (expense)		34,689			801			(240	)		-			35,250
	Provision for loan losses		(955	)		-			-			-			(955	)
	Non interest income		1,417			5,142			-			-			6,559
	Non interest expense		(29,601	)		(5,036	)		(897	)		-			(35,534	)
	Net income (loss) before taxes		5,550			907			(1,137	)		-			5,320
	Income tax (provision) benefit		(1,812	)		(350	)		435			-			(1,727	)
	Net income (loss)	$	3,738		$	557		$	(702	)	$	-		$	3,593
	Total assets	$	3,473,586		$	153,243		$	472,431		$	(460,117	)	$	3,639,143
		Nine month period ending September 30, 2014
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	97,944		$	2,264		$	-		$	-		$	100,208
	Interest expense		(4,791	)		(16	)		(701	)		-			(5,508	)
	Net interest income (expense)	$	93,153		$	2,248		$	(701	)		-		$	94,700
	Provision for loan losses		(808	)		-			-			-			(808	)
	Non interest income		4,333			14,358			-			-			18,691
	Non interest expense		(86,983	)		(14,477	)		(2,630	)		-			(104,090	)
	Net income (loss) before taxes	$	9,695		$	2,129		$	(3,331	)		-		$	8,493
	Income tax (provision) benefit		(3,250	)		(821	)		1,261			-			(2,810	)
	Net income (loss)	$	6,445		$	1,308		$	(2,070	)	$	-		$	5,683
	Total assets	$	3,473,586		$	153,243		$	472,431		$	(460,117	)	$	3,639,143
		Three month period ending September 30, 2013
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	25,304		$	730		$	-		-			$	26,034
	Interest expense		(1,267	)		(5	)		(152	)	-				(1,424	)
	Net interest income (expense)		24,037			725			(152	)	-				24,610
	Provision for loan losses		1,273			-			-		-				1,273
	Non interest income		4,836			3,771			-		-				8,607
	Non interest expense		(24,620	)		(4,377	)		(853	)	-				(29,850	)
	Net income before taxes		5,526			119			(1,005	)	-				4,640
	Income tax (provision) benefit		(1,867	)		(46	)		382		-				(1,531	)
	Net income (loss)	$	3,359		$	73		$	(623	)	-			$	3,109
	Total assets	$	2,194,300		$	138,395		$	294,425		$	(291,099	)	$	2,336,021
		Nine month period ending September 30, 2013
					Correspondent			Corporate
		Commercial			banking and			overhead
		and retail			capital markets			and			Elimination
		banking			division			administration			entries			Total
	Interest income	$	72,777		$	2,122		$	-		$	-		$	74,899
	Interest expense		(4,019	)		(16	)		(452	)		-			(4,487	)
	Net interest income		68,758			2,106			(452	)		-			70,412
	Provision for loan losses		259			-			-			-			259
	Non interest income		12,364			16,385			-			-			28,749
	Non interest expense		(65,917	)		(15,815	)		(2,581	)		-			(84,313	)
	Net income before taxes		15,464			2,676			(3,033	)		-			15,107
	Income tax (provision) benefit		(4,933	)		(1,032	)		1,301			-			(4,664	)
	Net income (loss)	$	10,531		$	1,644		$	(1,732	)	$	-		$	10,443
	Total assets	$	2,194,300		$	138,395		$	294,425		$	(291,099	)	$	2,336,021

Investment_Securities_Availabl1

Investment Securities Available for Sale (Tables)	9 Months Ended
	Sep. 30, 2014
Investments Debt And Equity Securities [Abstract]	'
Fair Value of Available for Sale Securities and Related Gross Unrealized Gains and Losses Recognized in Accumulated Other Comprehensive Income (Loss)	'
		30-Sep-14
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government sponsored entities and agencies	$	3	$	-	$	0	$	3
	Mortgage backed securities		496,623		5,070		4,930		496,763
	Municipal securities		37,631		1,472		103		39,000
	Total available-for-sale	$	534,257	$	6,542	$	5,033	$	535,767
		31-Dec-13
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government sponsored entities and agencies	$	4	$      ---		$       ---		$	4
	Mortgage backed securities		424,654		4,623		12,396		416,881
	Municipal securities		39,728		921		448		40,201
	Total available-for-sale	$	464,386	$	5,544	$	12,844	$	457,086
Schedule of Sales of Available for Sale Securities	'
	Sales of available for sale securities for the nine months ended September 30, 2014 and 2013 were as follows:
	For the nine months ended:	30-Sep-14		30-Sep-13
	Proceeds	$	323,542	$	68,892
	Gross gains		1,175		1,038
	Gross losses		1,129	---
Fair Value and Amortized Cost of Available for Sale Securities by Contractual Maturity	'
	The fair value of available for sale securities at September 30, 2014 by contractual maturity were as follows. Securities not due at a single maturity date, primarily mortgage-backed securities, are shown separately.
				Amortized
	Investment securities available for sale:	Fair Value		Cost
	Due in one year or less	$	-	$	-
	Due after one year through five years		2,116		2,016
	Due after five years through ten years		16,933		16,302
	Due after ten years through thirty years		19,955		19,316
	Mortgage backed securities		496,763		496,623
	Total available-for-sale	$	535,767	$	534,257
	The fair value of held to maturity securities at September 30, 2014 by contractual maturity were as follows:
				Amortized
	Investment securities held to maturity	Fair Value		Cost
	Due after ten years through thirty years	$	5,428	$	5,372
	Total held-to-maturity	$	5,428	$	5,372
Investments Gross Unrealized Losses and Fair Value	'
	The following tables show the Company’s available for sale investments’ gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at September 30, 2014 and December 31, 2013.
		30-Sep-14
		Less than 12 months				12 months or more				Total
				Unrealized				Unrealized				Unrealized
		Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
	Mortgage backed securities	$	58,242	$	265	$	140,972	$	4,665	$	199,214	$	4,930
	Municipal securities		-		-		3,873		103		3,873		103
	Total temporarily impaired
	available-for-sale securities	$	58,242	$	265	$	144,845	$	4,768	$	203,087	$	5,033
		31-Dec-13
		Less than 12 months				12 months or more				Total
				Unrealized				Unrealized				Unrealized
		Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
	Mortgage backed securities	$	239,641	$	10,221	$	18,793	$	2,175	$	258,434	$	12,396
	Municipal securities		7,603		333		1,010		115		8,613		448
	Total temporarily impaired
	available-for-sale securities	$	247,244	$	10,554	$	19,803	$	2,290	$	267,047	$	12,844
Fair Value of Held to Maturity Securities and Related Gross Unrecognized Gains and Losses Recognized in Accumulated Other Comprehensive Income (Loss)	'
	The following reflects the fair value of held to maturity securities and the related gross unrecognized gains and losses as of September 30, 2014. There were no securities held to maturity as of December 31, 2013.
		30-Sep-14
				Gross		Gross
		Amortized		Unrecognized		Unrecognized		Fair
		Cost		Gains		Losses		Value
	Municipal securities	$	5,372	$	56	$	-	$	5,428
	Total held-to-maturity	$	5,372	$	56	$	-	$	5,428

Loans_Tables

Loans (Tables)	9 Months Ended
	Sep. 30, 2014
Receivables [Abstract]	'
Summary of Information Concerning Loan Portfolio by Collateral Types	'
	The following table sets forth information concerning the loan portfolio by collateral types as of the dates indicated.
			30-Sep-14			31-Dec-13
	Loans excluding PCI loans
	Real estate loans
	Residential		$	572,244		$	458,331
	Commercial			1,136,595			528,710
	Land, development and construction			78,514			62,503
	Total real estate			1,787,353			1,049,544
	Commercial			282,753			143,263
	Consumer and other loans			55,527			49,547
	Loans before unearned fees and deferred cost			2,125,633			1,242,354
	Net unearned fees and costs			856			404
	Total loans excluding PCI loans			2,126,489			1,242,758
	PCI loans (note 1)
	Real estate loans
	Residential			106,335			120,030
	Commercial			165,006			100,012
	Land, development and construction			26,250			6,381
	Total real estate			297,591			226,423
	Commercial			11,226			3,850
	Consumer and other loans			821			1,148
	Total PCI loans			309,638			231,421
	Total loans			2,436,127			1,474,179
	Allowance for loan losses for loans that are not PCI loans			(19,035	)		(19,694	)
	Allowance for loan losses for PCI loans			(807	)		(760	)
	Total loans, net of allowance for loan losses		$	2,416,285		$	1,453,725
	The following sets forth the covered FDIC loans included in the table above.
			30-Sep-14			31-Dec-13
	FDIC covered loans that are not PCI loans
	Real estate loans
	Residential		$	4,719		$	-
	Commercial			34,747			-
	Land, development and construction			867			-
	Total real estate			40,333			-
	Commercial			1,382			-
	Consumer and other loans			-			-
	FDIC covered loans, excluding PCI loans			41,715			-
	FDIC covered PCI loans (note 1)
	Real estate loans
	Residential			102,262			120,030
	Commercial			137,783			100,012
	Land, development and construction			17,965			6,381
	Total real estate			258,010			226,423
	Commercial			6,679			3,850
	Consumer and other loans			-		---
	Total FDIC covered PCI loans			264,689			230,273
	Total FDIC covered loans			306,404			230,273
	Allowance for loan losses for FDIC covered loans that are not PCI loans			-			-
	Allowance for loans losses for FDIC covered			(807	)		(760	)
	Total covered loans, net of allowance  for loan losses		$	305,597		$	229,513
Summary of Allowance for Loan Losses and Recorded Investment in Loans by Portfolio	'
	The table below set forth the activity in the allowance for loan losses for the periods presented.
	Three months ended September 30, 2014		Allowance for loan losses for loans that are not PCI loans			Allowance for loan losses on PCI loans			Total
	Balance at beginning of period		$	18,240		$	960		$	19,200
	Loans charged-off			(869	)		-			(869	)
	Recoveries of loans previously charged-off			556			-			556
	Net charge-offs			(313	)		-			(313	)
	Provision for loan losses			1,108			(153	)		955
	Balance at end of period		$	19,035		$	807		$	19,842
	Three months ended September 30, 2013
	Balance at beginning of period		$	21,800		$	2,020		$	23,820
	Loans charged-off			(1,570	)		-			(1,570	)
	Recoveries of loans previously charged-off			344			-			344
	Net charge-offs			(1,226	)		-			(1,226	)
	Provision for loan losses			(1,309	)		36			(1,273	)
	Balance at end of period		$	19,265		$	2,056		$	21,321
	Nine months ended September 30, 2014		Allowance for loan losses for loans that are not PCI loans			Allowance for loan losses on PCI loans			Total
	Balance at beginning of period		$	19,694		$	760		$	20,454
	Loans charged-off			(2,931	)		-			(2,931	)
	Recoveries of loans previously charged-off			1,511			-			1,511
	Net charge-offs			(1,420	)		-			(1,420	)
	Provision for loan losses			761			47			808
	Balance at end of period		$	19,035		$	807		$	19,842
	Nine months ended September 30, 2013
	Balance at beginning of period		$	24,033		$	2,649		$	26,682
	Loans charged-off			(5,404	)		(515	)		(5,919	)
	Recoveries of loans previously charged-off			817			-			817
	Net charge-offs			(4,587	)		(515	)		(5,102	)
	Provision for loan losses			(181	)		(78	)		(259	)
	Balance at end of period		$	19,265		$	2,056		$	21,321
	The following tables present the activity in the allowance for loan losses by portfolio segment for the periods presented.
			Real Estate Loans
			Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
	Allowance for loan losses for loans that are not PCI loans:
	Three months ended September 30, 2014
	Beginning of the period		$	7,819		$	7,544		$	634		$	1,100		$	1,143		$	18,240
	Charge-offs			(260	)		(37	)		(24	)		(327	)		(221	)		(869	)
	Recoveries			349			107			45			15			40			556
	Provision for loan losses			(1,415	)		1,133			154			1,032			204			1,108
	Balance at end of period		$	6,493		$	8,747		$	809		$	1,820		$	1,166		$	19,035
	Three months ended September 30, 2013
	Beginning of the period		$	9,791		$	6,026		$	4,071		$	1,064		$	848		$	21,800
	Charge-offs			(1,147	)		(53	)		(127	)		(53	)		(190	)		(1,570	)
	Recoveries			163			42			41			22			76			344
	Provision for loan losses			844			(1,431	)		(644	)		(146	)		68			(1,309	)
	Balance at end of period		$	9,651		$	4,584		$	3,341		$	887		$	802		$	19,265
			Real Estate Loans
			Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
	Allowance for loan losses for loans that are PCI loans:
	Three months ended September 30, 2014
	Beginning of the period		$	-		$	522		$	77		$	361		$	-		$	960
	Charge-offs			-			-			-			-			-			-
	Recoveries			-			-			-			-			-			-
	Provision for loan losses			-			(27	)		(47	)		(79	)		-			(153	)
	Balance at end of period		$	-		$	495		$	30		$	282		$	-		$	807
	Three months ended September 30, 2013
	Beginning of the period		$	-		$	1,577		$	130		$	313		$	-		$	2,020
	Charge-offs			-			-			-			-			-			-
	Recoveries			-			-			-			-			-			-
	Provision for loan losses			-			(190	)		(8	)		234			-			36
	Balance at end of period		$	-		$	1,387		$	122		$	547		$	-		$	2,056
			Real Estate Loans
			Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
	Allowance for loan losses for loans that are not PCI loans:
Nine months ended September 30, 2014
Beginning of the period		$	8,785		$	6,441		$	3,069		$	510		$	889		$	19,694
Charge-offs			(1,175	)		(352	)		(124	)		(594	)		(686	)		(2,931	)
Recoveries			784			482			93			19			133			1,511
Provision for loan losses			(1,901	)		2,176			(2,229	)		1,885			830			761
Balance at end of period		$	6,493		$	8,747		$	809		$	1,820		$	1,166		$	19,035
Nine months ended September 30, 2013
Beginning of the period		$	6,831		$	8,272		$	6,211		$	1,745		$	974		$	24,033
Charge-offs			(3,328	)		(1,127	)		(310	)		(112	)		(527	)		(5,404	)
Recoveries			396			82			161			43			135			817
Provision for loan losses			5,752			(2,643	)		(2,721	)		(789	)		220			(181	)
Balance at end of period		$	9,651		$	4,584		$	3,341		$	887		$	802		$	19,265
		Real Estate Loans
		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
Allowance for loan losses for loans that are PCI loans:
Nine months ended September 30, 2014
Beginning of the period		$	-		$	138		$	89		$	533		$	-		$	760
Charge-offs			-			-			-			-			-			-
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			357			(59	)		(251	)		-			47
Balance at end of period		$	-		$	495		$	30		$	282		$	-		$	807
Nine months ended September 30, 2013
Beginning of the period		$	-		$	2,335		$	-		$	314		$	-		$	2,649
Charge-offs			-			(515	)		-			-			-			(515	)
Recoveries			-			-			-			-			-			-
Provision for loan losses			-			(433	)		122			233			-			(78	)
Balance at end of period		$	-		$	1,387		$	122		$	547		$	-		$	2,056
Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method	'
	The following tables present the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of September 30, 2014 and December 31, 2013. Accrued interest receivable and unearned loan fees and costs are not included in the recorded investment because they are not material.
			Real Estate Loans
	As of September 30, 2014		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment		$	435		$	1,151		$	372		$	3		$	16		$	1,977
	Collectively evaluated for impairment			6,058			7,596			437			1,817			1,150			17,058
	Purchased credit impaired			-			495			30			282			-			807
	Total ending allowance balance		$	6,493		$	9,242		$	839		$	2,102		$	1,166		$	19,842
	Loans:
	Individually evaluated for impairment		$	9,764		$	11,695		$	2,975		$	2,010		$	251		$	26,695
	Collectively evaluated for impairment			562,480			1,124,900			75,539			280,743			55,276			2,098,938
	Purchased credit impaired			106,335			165,006			26,250			11,226			821			309,638
	Total ending loan balances		$	678,579		$	1,301,601		$	104,764		$	293,979		$	56,348		$	2,435,271
		Real Estate Loans
	As of December 31, 2013		Residential			Commercial			Land, develop., constr.			Comm. & industrial			Consumer & other			Total
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment		$	395		$	1,377		$	16		$	2		$	21		$	1,811
	Collectively evaluated for impairment			8,390			5,064			3,053			508			868			17,883
	Purchased credit impaired		-				138			89			533		-				760
	Total ending allowance balance		$	8,785		$	6,579		$	3,158		$	1,043		$	889		$	20,454
	Loans:
	Individually evaluated for impairment		$	8,610		$	12,564		$	1,307		$	1,297		$	332		$	24,110
	Collectively evaluated for impairment			449,721			516,146			61,196			141,966			49,215			1,218,244
	Purchased credit impaired			120,030			100,012			6,381			3,850			1,148			231,421
	Total ending loan balance		$	578,361		$	628,722		$	68,884		$	147,113		$	50,695		$	1,473,775
Summary of Impaired Loans	'
	The table below summarizes impaired loan data for the periods presented.
			30-Sep-14			31-Dec-13
	Performing TDRs (these are not included in nonperforming loans ("NPLs"))		$	11,951		$	10,763
	Nonperforming TDRs (these are included in NPLs)			3,055			4,684
	Total TDRs (these are included in impaired loans)			15,006			15,447
	Impaired loans that are not TDRs			11,689			8,663
	Total impaired loans		$	26,695		$	24,110
Troubled Debt Restructured Loans by Loans Type	'
	TDRs as of September 30, 2014 and December 31, 2013 quantified by loan type classified separately as accrual (performing loans) and non-accrual (non performing loans) are presented in the tables below.
	As of September 30, 2014		Accruing			Non Accrual			Total
	Real estate loans:
	Residential		$	7,587		$	1,197		$	8,784
	Commercial			2,864			1,635			4,499
	Land, development, construction			579			142			721
	Total real estate loans			11,030			2,974			14,004
	Commercial			714			37			751
	Consumer and other			207			44			251
	Total TDRs		$	11,951		$	3,055		$	15,006
	As of December 31, 2013		Accruing			Non-Accrual			Total
	Real estate loans:
	Residential		$	7,221		$	1,389		$	8,610
	Commercial			2,169			3,077			5,246
	Land, development, construction			608			47			655
	Total real estate loans			9,998			4,513			14,511
	Commercial			555			49			604
	Consumer and other			210			122			332
	Total TDRs		$	10,763		$	4,684		$	15,447
Summary of Loans by Class Modified	'
	The following table presents loans by class modified and for which there was a payment default within twelve months following the modification during the periods ending September 30, 2014 and 2013.
			Period ending						Period ending
			30-Sep-14						30-Sep-13
			Number			Recorded			Number			Recorded
			of loans			investment			of loans			investment
	Residential			-		$	-			3		$	562
	Commercial real estate			3			566			5			1,662
	Land, development, construction			1			142			-			-
	Commercial and Industrial			-			-			1			25
	Consumer and other			-			-			1			18
	Total			4		$	708			10		$	2,267
Summary of Loans Individually Evaluated for Impairment by Class of Loans	'
	The Company recorded a provision for loan loss expense of $62 and $66 and partial charge offs of $31 and $40 on TDR loans that subsequently defaulted as described above during the three and nine month periods ending September 30, 2014.
	The following tables present loans individually evaluated for impairment by class of loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans accounted for pursuant to ASC Topic 310-30. The recorded investment is less than the unpaid principal balance due to partial charge-offs.
	As of September 30, 2014		Unpaid principal balance			Recorded investment			Allowance for loan losses allocated
	With no related allowance recorded:
	Residential real estate		$	6,551		$	6,434		$	-
	Commercial real estate			5,782			5,651			-
	Land, development, construction			2,432			1,825			-
	Commercial and industrial			1,912			1,778			-
	Consumer, other			-			-			-
	With an allowance recorded:
	Residential real estate			3,482			3,330			435
	Commercial real estate			6,364			6,044			1,151
	Land, development, construction			1,192			1,150			372
	Commercial and industrial			279			232			3
	Consumer, other			268			251			16
	Total		$	28,262		$	26,695		$	1,977
	As of December 31, 2013		Unpaid principal balance			Recorded investment			Allowance for loan losses allocated
	With no related allowance recorded:
	Residential real estate		$	5,052		$	4,803		$	-
	Commercial real estate			9,330			7,439		-
	Land, development, construction			1,377			1,168		-
	Commercial and industrial			1,330			1,241		-
	Consumer, other			5			5		-
	With an allowance recorded:
	Residential real estate			3,942			3,807			395
	Commercial real estate			5,257			5,125			1,377
	Land, development, construction			147			139			16
	Commercial and industrial			102			56			2
	Consumer, other			340			327			21
	Total		$	26,882		$	24,110		$	1,811
Summary of Impairment by Class of Loans	'
	Three month period ending September, 30, 2014		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
	Real estate loans:
	Residential		$	9,745		$	83		$	-
	Commercial			12,362			39			-
	Land, development, construction			2,521			11			-
	Total real estate loans			24,628			133			-
	Commercial and industrial			2,068			19			-
	Consumer and other loans			283			3			-
	Total		$	26,979		$	155		$	-
	Nine month period ending September, 30, 2014		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
	Real estate loans:
	Residential		$	9,488		$	247		$	-
	Commercial			12,614			110			-
	Land, development, construction			1,894			30			-
	Total real estate loans			23,996			387			-
	Commercial and industrial			2,107			58			-
	Consumer and other loans			310			9			-
	Total		$	26,413		$	454		$	-
	Three month period ending September, 30, 2013		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
	Real estate loans:
	Residential		$	8,829		$	78		$	-
	Commercial			26,960			295			-
	Land, development, construction			1,436			2			-
	Total real estate loans			37,225			375			-
	Commercial and industrial			1,710			12			-
	Consumer and other loans			351			3			-
	Total		$	39,286		$	390		$	-
	Nine month period ending September, 30, 2013		Average of impaired loans			Interest income recognized during impairment			Cash basis interest income recognized
	Real estate loans:
	Residential		$	9,014		$	222		$	-
	Commercial			28,134			840			-
	Land, development, construction			1,423			10			-
	Total real estate loans			38,571			1,072			-
	Commercial and industrial			1,984			28			-
	Consumer and other loans			369			8			-
	Total		$	40,924		$	1,108		$	-
Summary of Nonperforming Loans	'
	Nonperforming loans include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans, excluding purchased credit impaired loans accounted for pursuant to ASC Topic 310-30.
	Nonperforming loans were as follows:		30-Sep-14			31-Dec-13
	Non accrual loans		$	31,067		$	27,077
	Loans past due over 90 days and still accruing interest			-			-
	Total non performing loans		$	31,067		$	27,077
Summary of Recorded Investment in Nonaccrual Loans and Loans Past Due Over 90 Days Still on Accrual by Class of Loans	'
	The following table presents the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans:
	As of September 30, 2014		Nonaccrual			Loans past due over 90 days still accruing
	Residential real estate		$	11,215		$	-
	Commercial real estate			13,253			-
	Land, development, construction			2,820			-
	Commercial			3,514			-
	Consumer, other			265			-
	Total		$	31,067		$	-
	As of December 31, 2013		Nonaccrual			Loans past due over 90 days still accruing
	Residential real estate		$	10,162		$	-
	Commercial real estate			13,925			-
	Land, development, construction			1,099			-
	Commercial			1,582			-
	Consumer, other			309			-
	Total		$	27,077		$	-
Summary Aging of Recorded Investment in Past Due Loans	'
	The following table presents the aging of the recorded investment in past due loans as of September 30, 2014 and December 31, 2013, excluding purchased credit impaired loans:
										Accruing Loans
			Total				30 - 59 days past due			60 - 89 days past due			Greater than 90 days past due			Total Past Due			Loans Not Past Due		Nonaccrual Loans
	As of September 30, 2014
	Residential real estate		$	572,244			$	3,801		$	1,020		$	-		$	4,821		$	556,208	$	11,215
	Commercial real estate			1,136,595				3,568			588			-			4,156			1,119,186		13,253
	Land/dev/construction			78,514				894			15			-			909			74,785		2,820
	Commercial			282,753				1,273			44			-			1,317			277,922		3,514
	Consumer			55,527				363			83			-			446			54,816		265
			$	2,125,633			$	9,899		$	1,750		$	-		$	11,649		$	2,082,917	$	31,067
										Accruing Loans
			Total				30 - 59 days past due			60 - 89 days past due			Greater than 90 days past due			Total Past Due			Loans Not Past Due		Nonaccrual Loans
	As of December 31, 2013
	Residential real estate		$	458,331			$	2,801		$	1,942		$        -			$	4,743		$	443,426	$	10,162
	Commercial real estate			528,710				2,420			1,941		-				4,361			510,424		13,925
	Land/dev/construction			62,503				136			241		-				377			61,027		1,099
	Commercial			143,263				491			1		-				492			141,189		1,582
	Consumer			49,547				295			240		-				535			48,703		309
			$	1,242,354			$	6,143		$	4,365		$        -			$	10,508		$	1,204,769	$	27,077
Risk Category of Loans by Class of Loans, Excluding Purchased Credit Impaired Loans	'
						As of September 30, 2014
	Loan Category		Pass			Special Mention			Substandard			Doubtful
	Residential real estate		$	545,003		$	5,376		$	21,865		$	-
	Commercial real estate			1,065,525			36,031			35,039			-
	Land/dev/construction			64,286			9,967			4,261			-
	Commercial			275,095			3,119			4,539			-
	Consumer			54,910			283			334			-
	Total		$	2,004,819		$	54,776		$	66,038		$	-
						As of December 31, 2013
	Loan Category		Pass			Special Mention			Substandard			Doubtful
	Residential real estate		$	428,671		$	6,438		$	23,222		$   -
	Commercial real estate			448,762			46,427			33,521		-
	Land/dev/construction			50,164			9,566			2,773		-
	Commercial			134,901			4,490			3,872		-
	Consumer			49,448			526			573		-
	Total		$	1,111,946		$	67,447		$	63,961		$	-
Investment in Residential and Consumer Loans, Excluding Loans from Purchased Credit Impaired Loans	'
	The following table presents the recorded investment in residential and consumer loans, excluding purchased credit impaired loans, based on payment activity as of September 30, 2014 and December 31, 2013:
	As of September 30, 2014		Residential			Consumer
	Performing		$	561,029		$	55,262
	Nonperforming			11,215			265
	Total		$	572,244		$	55,527
	As of December 31, 2013		Residential			Consumer
	Performing		$	448,169		$	49,238
	Nonperforming			10,162			309
	Total		$	458,331		$	49,547
Summary of Total Contractually Required Principal and Interest Cash Payments, Management's Estimate of Expected Total Cash Payments and Carrying Value of Loans	'
	The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and carrying value of the loans as of September 30, 2014 and December 31, 2013. Contractually required principal and interest payments have been adjusted for estimated prepayments.
			30-Sep-14			31-Dec-13
	Contractually required principal and interest		$	509,272		$	389,537
	Non-accretable difference			(73,791	)		(55,304	)
	Cash flows expected to be collected			435,481			334,233
	Accretable yield			(125,843	)		(102,812	)
	Carrying value of acquired loans			309,638			231,421
	Allowance for loan losses			(807	)		(760	)
	Carrying value less allowance for loan losses		$	308,831		$	230,661
Summary of Changes in Total Contractually Required Principal and Interest Cash Payments	'
	The table below summarizes the changes in total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and carrying value of the loans during the three and nine month periods ending September 30, 2014 and 2013.
	Activity during the					Effect of			income			all other
	three month period ending September 30, 2014		30-Jun-14			acquisitions			accretion			adjustments			30-Sep-14
	Contractually required principal and interest		$	566,948		$	-		$	-		$	(57,676	)	$	509,272
	Non-accretable difference			(79,985	)		-			-			6,194			(73,791	)
	Cash flows expected to be collected			486,963			-			-			(51,482	)		435,481
	Accretable yield			(133,093	)		-			9,099			(1,849	)		(125,843	)
	Carry value of acquired loans		$	353,870		$	-		$	9,099		$	(53,331	)	$	309,638
	Activity during the					Effect of			income			all other
	nine month period ending September 30, 2014		31-Dec-13			acquisitions			accretion			adjustments			30-Sep-14
	Contractually required principal and interest		$	389,537		$	229,249		$	-		$	(109,514	)	$	509,272
	Non-accretable difference			(55,304	)		(45,293	)		-			26,806			(73,791	)
	Cash flows expected to be collected			334,233			183,956			-			(82,708	)		435,481
	Accretable yield			(102,812	)		(32,204	)		25,561			(16,388	)		(125,843	)
	Carry value of acquired loans		$	231,421		$	151,752		$	25,561		$	(99,096	)	$	309,638
	Activity during the					income			all other
	three month period ending September 30, 2013		30-Jun-13			accretion			adjustments			30-Sep-13
	Contractually required principal and interest		$	449,146		$	-		$	(32,581	)	$	416,565
	Non-accretable difference			(90,060	)		-			18,250			(71,810	)
	Cash flows expected to be collected			359,086			-			(14,331	)		344,755
	Accretable yield			(99,407	)		8,988			(10,186	)		(100,605	)
	Carry value of acquired loans		$	259,679		$	8,988		$	(24,517	)	$	244,150
	Activity during the					income			all other
	nine month period ending September 30, 2013		31-Dec-12			accretion			adjustments			30-Sep-13
	Contractually required principal and interest		$	534,989		$	-		$	(118,424	)	$	416,565
	Non-accretable difference			(142,855	)		-			71,045			(71,810	)
	Cash flows expected to be collected			392,134			-			(47,379	)		344,755
	Accretable yield			(93,107	)		24,835			(32,333	)		(100,605	)
	Carry value of acquired loans		$	299,027		$	24,835		$	(79,712	)	$	244,150

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	9 Months Ended
	Sep. 30, 2014
Fdic Loss Share Indemnification Asset [Abstract]	'
FDIC Loss Share Indemnification Asset	'
	The activity in the FDIC loss share indemnification asset is as follows (certain items related to true-up payment liabilities per the FDIC agreements, which had previously been netted with the FDIC indemnification asset, have been reclassified as a separate liability):
		Nine month period ended Sep 30, 2014			Twelve month period ended Dec 31, 2013
	Beginning of the year	$	73,877		$	119,691
	Effect of acquisition		2,636			-
	Amortization, net		(15,097	)		(13,765	)
	Indemnification revenue		1,864			6,055
	Indemnification of foreclosure expense		307			4,413
	Proceeds from FDIC		(9,593	)		(42,004	)
	Impairment (recovery) of loan pool		38			(513	)
	Period end balance	$	54,032		$	73,877
FDIC Activity In True-up Payment Liability	'
	The activity in the true-up payment liability is as follows:
		Nine month period ended Sep 30, 2014			Twelve month period ended Dec 31, 2013
	Beginning of the year	$	444		$	402
	Effect of acquisition		682			-
	True-up liability accrual		47			42
	Period end balance	$	1,173		$	444

Business_Combinations_Tables

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2014
Gulfstream Bancshares, Inc. [Member]	'
Summary of Purchase Price Calculation	'
	The table below summarizes the purchase price calculation.
	Number of shares of Gulfstream common stock outstanding at January 16, 2014		1,569,364
	Gulfstream preferred shares that convert to Gulfstream common shares upon a change in control		155,629
	Total Gulfstream common shares including conversion of preferred shares		1,724,993
	Per share exchange ratio		3.012
	Number of shares of CenterState common stock less 138 of fractional shares		5,195,541
	Multiplied by CenterState common stock price per share on January 16, 2014	$	10.23
	Fair value of CenterState common stock issued	$	53,150
	Total Gulfstream common shares including conversion of preferred shares		1,724,993
	Multiplied by the cash consideration each Gulfstream share is entitled to receive	$	14.65
	Total Cash Consideration, not including cash for fractional shares	$	25,271
	Total Stock Consideration	$	53,150
	Total Cash Consideration plus $2 for 138 of fractional shares		25,273
	Total consideration to be paid to Gulfstream common shareholders	$	78,423
	Fair value of current Gulfstream stock options to be converted to CenterState stock options		3,617
	Total purchase price	$	82,040
	The table below summarizes the purchase price calculation.
Summary of Preliminary Estimates of Fair Value of Assets Purchased, Including Goodwill and Liabilities Assumed	'
	The list below summarizes the preliminary estimates of the fair value of the assets purchased, including goodwill, and liabilities assumed as of the January 17, 2014 purchase date.
		Jan 17, 2014
	Assets:
	Cash and cash equivalents	$	102,278
	Loans, held for investment		329,515
	Purchased credit impaired loans		30,068
	Loans held for sale		247
	Investments		60,816
	Interest receivable		1,087
	Branch real estate		5,519
	Furniture and fixtures		262
	FHLB stock		885
	Bank owned life insurance		4,939
	Other repossessed real estate owned		2,694
	Core deposit intangible		4,173
	Goodwill		31,516
	Other assets		11,261
	Total assets acquired	$	585,260
	Liabilities:
	Deposits	$	478,999
	Federal Home loan advances		5,708
	Repurchase agreements		7,576
	Interest payable		125
	Official checks outstanding		826
	Corporate debentures		6,745
	Other liabilities		3,241
	Total liabilities assumed	$	503,220
Summary of Contractually Required Principal and Interest Cash Payments for Purchased Credit Impaired Loans	'
	The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of January 17, 2014 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.
	Contractually required principal and interest	$	48,289
	Non-accretable difference		(11,766	)
	Cash flows expected to be collected		36,523
	Accretable yield		(6,455	)
	Total purchased credit-impaired loans acquired	$	30,068
Summary of Fair Value of Acquired Loans and Unpaid Principal Balance	'
	The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.
		Book				Fair value
		balance
	Loans:
	Single family residential real estate		$               33,506				$        32,319
	Commercial real estate		185,250				183,189
	Construction/development/land		30,387				27,704
	Commercial loans		85,940				84,203
	Consumer and other loans		2,112				2,100
	Purchased credit-impaired		40,655				30,068
	Total earning assets	$	377,850			$	359,583
Schedule of Measurement Period Adjustments	'
	Based on appraisals received subsequent to the acquisition date, the Company adjusted its initial fair value estimates of certain other real estate owned acquired.
		Jan 17, 2014				measurement			Jan 17, 2014
		(as initially reported)				period			(as adjusted)
						adjustments
	Assets:
	Cash and cash equivalents	$	102,278			$	—		$	102,278
	Loans, held for investment		329,515							329,515
	Purchased credit impaired loans		30,068							30,068
	Loans held for sale		247							247
	Investments		60,816							60,816
	Interest receivable		1,087							1,087
	Branch real estate		5,519							5,519
	Furniture and fixtures		262							262
	FHLB stock		885							885
	Bank owned life insurance		4,939							4,939
	Other repossessed real estate owned		3,365				(671	)		2,694
	Core deposit intangible		4,173							4,173
	Goodwill		31,104				412			31,516
	Other assets		11,002				259			11,261
	Total assets acquired	$	585,260			$	—		$	585,260
	Liabilities:
	Deposits	$	478,999			$	—		$	478,999
	Federal Home loan advances		5,708							5,708
	Repurchase agreements		7,576							7,576
	Interest payable		125							125
	Official checks outstanding		826							826
	Trust Preferred Security		6,745							6,745
	Other liabilities		3,241							3,241
	Total liabilities assumed	$	503,220			$	—		$	503,220
First Southern Bancorp, Inc. [Member]	'
Summary of Purchase Price Calculation	'
	Number of shares of FSB common stock outstanding at May 30, 2014		31,539,698
	FSB preferred shares that convert to FSB common shares upon a change in control		48,375
	Total FSB common shares including conversion of preferred shares		31,588,073
	Per share exchange ratio		0.3
	Number of shares of CenterState common stock, less 377 of fractional shares		9,476,045
	Multiplied by CenterState common stock price per share on May 30, 2014	$	10.62
	Fair value of CenterState common stock issued	$	100,636
	Total FSB common shares including conversion of preferred shares		31,588,073
	Multiplied by the cash consideration each FSB share is entitled to receive	$	3
	Total Cash Consideration, not including cash for fractional shares	$	94,765
	Total Stock Consideration	$	100,636
	Total Cash Consideration, plus $3 for 377 of fractional shares		94,768
	Total purchase price	$	195,404
Summary of Preliminary Estimates of Fair Value of Assets Purchased, Including Goodwill and Liabilities Assumed	'
	The list below summarizes the preliminary estimates of the fair value of the assets purchased, including goodwill, and liabilities assumed as of the June 1, 2014 purchase date.
		June 1, 2014
	Assets:
	Cash and cash equivalents	$	148,257
	Loans, excluding purchased credit impaired loans		477,841
	Purchased credit impaired loans		121,684
	Investments		204,723
	Interest receivable		2,007
	Branch real estate		1,594
	Furniture and fixtures		1,282
	Bank property held for sale		7,119
	Federal Reserve Bank and Federal Home Loan Bank stock		5,576
	Bank owned life insurance		2,555
	Other repossessed real estate owned covered by FDIC loss share agreements		22,731
	Other repossessed real estate owned		454
	Core deposit intangible		7,396
	Goodwill		541
	Deferred tax asset		43,889
	Other assets		4,581
	Total assets acquired	$	1,052,230
	Liabilities:
	Deposits	$	662,959
	Deposits held for sale		189,674
	Interest payable		58
	Other liabilities		4,135
	Total liabilities assumed	$	856,826
Summary of Contractually Required Principal and Interest Cash Payments for Purchased Credit Impaired Loans	'
	The table below summarizes the total contractually required principal and interest cash payments, management’s estimate of expected total cash payments and fair value of the loans as of June 1, 2014 for purchased credit impaired loans. Contractually required principal and interest payments have been adjusted for estimated prepayments.
	Contractually required principal and interest	$	180,960
	Non-accretable difference		(33,527	)
	Cash flows expected to be collected		147,433
	Accretable yield		(25,749	)
	Total purchased credit-impaired loans acquired	$	121,684
Summary of Fair Value of Acquired Loans and Unpaid Principal Balance	'
	The table below presents information with respect to the fair value of acquired loans, as well as their unpaid principal balance (“Book Balance”) at acquisition date.
		Book				Fair
		balance				value
	Loans:
	Single family residential real estate	$	60,332			$	57,693
	Commercial real estate		387,589				382,162
	Construction/development/land		17,238				15,942
	Commercial loans		20,267				19,906
	Consumer and other loans		2,496				2,138
	Purchased credit-impaired		142,414				121,684
	Total earning assets	$	630,336			$	599,525
First Southern Bank Inc And Gulfstream Bancshares Inc [Member]	'
Pro-Forma Financial Information of Acquisition	'
	Pro-forma data for the three and nine month periods ending September 30, 2013 listed in the table below presents pro-forma information as if the Gulfstream and FSB acquisitions occurred at the beginning of 2013. The pro-forma information for the nine month periods ending September 30, 2014 assumes the FSB acquisition occurred at the beginning of 2013. Because the Gulfstream transaction closed on January 17, 2014 and its actual results are included in the Company’s actual operating results for 2014, its actual results were used in the table below for the nine month period ending September 30, 2014 instead of a pro-forma amount. Because the FSB transaction closed on June 1, 2014, there is no pro forma information for the three month period ending September 30, 2014 as both the Gulfstream and FSB actual results are included in the current reported figures.
			Three months ended Sep 30,		Nine months ended Sep 30,
			2013		2013		2014
	Net interest income		$             39,500		$    114,335		$     110,247
	Net income available to common shareholders		6,056		17,595		14,271
	EPS - basic		$                 0.14		$          0.39		$           0.32
	EPS - diluted		$                 0.13		$          0.39		$           0.32

Nature_of_Operations_and_Basis1

Nature of Operations and Basis of Presentation - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Revenue_Generating_Activities
	County
	Location
Nature Of Operations And Basis Of Presentation [Abstract]	'
Number of service banking locations	58
Number of counties	20
Number of inter-related revenue generating activities	3

Common_Stock_Outstanding_and_E2

Common Stock Outstanding and Earnings Per Share Data - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Anti dilutive stock options	893,620	1,040,121	956,882	1,116,739

Common_Stock_Outstanding_and_E3

Common Stock Outstanding and Earnings Per Share Data - Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Computations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator for basic and diluted earnings per share:	'	'	'	'
Net income	$3,593	$3,109	$5,683	$10,443
Denominator:	'	'	'	'
Denominator for basic earnings per share - weighted-average shares	45,061,356	30,109,728	39,435,947	30,099,509
Effect of dilutive securities:	'	'	'	'
Stock options and stock grants	351,919	134,145	365,613	116,519
Denominator for diluted earnings per share - adjusted weighted-average shares	45,413,275	30,243,873	39,801,560	30,216,028
Basic earnings per share	$0.08	$0.10	$0.14	$0.35
Diluted earnings per share	$0.08	$0.10	$0.14	$0.35

Fair_Value_Assets_and_Liabilit

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Trading securities, at fair value	$656	$0
Available for sale securities	535,767	457,086
Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	496,763	416,881
Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	39,000	40,201
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	0	0
Significant Other Observable Inputs (Level 2) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	656	0
Available for sale securities	535,767	457,086
Significant Unobservable Inputs (Level 3) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	0	0
Fair Value Measurements on Recurring [Member]	'	'
Assets:	'	'
Trading securities, at fair value	656	'
Interest rate swap derivatives, carrying amount assets	3,983	2,603
Liabilities:	'	'
Interest rate swap derivatives, carrying amount liability	4,398	2,496
Fair Value Measurements on Recurring [Member] | Obligations of U.S. government sponsored entities and agencies [Member]	'	'
Assets:	'	'
Available for sale securities	3	4
Fair Value Measurements on Recurring [Member] | Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	496,763	416,881
Fair Value Measurements on Recurring [Member] | Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	39,000	40,201
Fair Value Measurements on Recurring [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	0	0
Fair Value Measurements on Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	656	'
Interest rate swap derivatives, carrying amount assets	3,983	2,603
Liabilities:	'	'
Interest rate swap derivatives, carrying amount liability	4,398	2,496
Fair Value Measurements on Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Obligations of U.S. government sponsored entities and agencies [Member]	'	'
Assets:	'	'
Available for sale securities	3	4
Fair Value Measurements on Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	496,763	416,881
Fair Value Measurements on Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	39,000	40,201
Fair Value Measurements on Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]	'	'
Assets:	'	'
Trading securities, at fair value	$0	$0

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	3 Months Ended			9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Branches	Property		Property
				Office
				Branches
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'	'
Impaired loans with allocated allowance for loan losses	$13,031	'	'	$13,031	'	$13,528
Impaired valuation allowance	1,700	'	'	1,700	'	1,644
Provision for loan loss expense	452	'	383	857	781	'
Additions charged to expenses	329	'	3,184	2,234	5,851	'
Number of branches closed	'	'	'	8	'	'
Company owned branches	7	'	'	7	'	'
Company leased branches	1	'	'	1	'	'
Number properties owned by the Company were transferred to held for sale	'	1	'	5	'	'
Number of loan production office	'	'	'	2	'	'
Impairment charges recognized	225	1,040	'	1,511	'	'
Additional impairment charges	$45	$276	'	$225	'	'
Minimum [Member]	'	'	'	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'	'
Capitalization rates to determine fair value of collateral	8.00%	'	'	8.00%	'	'
Maximum [Member]	'	'	'	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'	'
Capitalization rates to determine fair value of collateral	11.00%	'	'	11.00%	'	'

Fair_Value_Assets_and_Liabilit1

Fair Value - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans on Residential real estate at Carrying value	$3,086	$3,191
Impaired loans on Commercial real estate at Carrying value	5,655	7,515
Impaired loans on Land, land development and construction at Carrying value	1,823	290
Impaired loans on Commercial at Carrying value	673	731
Impaired loans on Consumer at Carrying value	94	157
Other real estate owned on Residential real estate at Carrying value	388	27
Other real estate owned on Commercial real estate at Carrying value	3,329	3,837
Other real estate owned on Land, land development and construction at Carrying value	3,001	3,949
Bank owned real estate held for sale	5,922	1,582
Significant Unobservable Inputs (Level 3) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans on Residential real estate	3,086	3,191
Impaired loans on Commercial real estate	5,655	7,515
Impaired loans on Land, land development and construction	1,823	290
Impaired loans on Commercial	673	731
Impaired loans on Consumer	94	157
Other real estate owned on Residential real estate	388	27
Other real estate owned on Commercial real estate	3,329	3,837
Other real estate owned on Land, land development and construction	3,001	3,949
Bank owned real estate held for sale	$5,922	$1,582

Fair_Value_Carrying_Amounts_an

Fair Value - Carrying Amounts and Estimated Fair Values of Company's Financial Instruments (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financial assets:	'	'	'	'
Cash and cash equivalents	$210,566	$174,889	$106,816	$136,748
Cash and cash equivalents, fair value	210,566	174,889	'	'
Trading securities, at fair value	656	0	'	'
Investment securities available for sale, at fair value	535,767	457,086	'	'
Investment securities held to maturity, carrying amount	5,372	0	'	'
Investment securities held to maturity, at fair value	5,428	0	'	'
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	17,176	8,189	'	'
Loans held for sale, carrying amount	522	1,010	'	'
Loans held for sale, fair value	522	1,010	'	'
Loans, less allowance for loan losses, carrying amount	2,416,285	1,453,725	'	'
Loans, less allowance for loan losses, fair value	2,419,027	1,456,295	'	'
FDIC indemnification asset, carrying amount	54,032	73,877	'	119,691
Interest rate swap derivatives, carrying amount assets	3,983	2,603	'	'
Interest rate swap derivatives, assets fair value	3,983	2,603	'	'
Accrued interest receivable, carrying amount	8,416	6,337	'	'
Accrued interest receivable, fair value	8,416	6,337	'	'
Financial liabilities:	'	'	'	'
Deposits- without stated maturities, carrying amount	2,578,156	1,671,356	'	'
Deposits- without stated maturities, fair value	2,578,156	1,671,356	'	'
Deposits- with stated maturities, carrying amount	488,074	384,875	'	'
Deposits- with stated maturities, fair value	493,339	389,115	'	'
Securities sold under agreement to repurchase, fair value	30,456	20,457	'	'
Securities sold under agreement to repurchase	30,456	20,457	'	'
Federal funds purchased, carrying amount	42,070	29,909	'	'
Corporate debentures, carrying amount	23,873	16,996	'	'
Federal funds purchased, fair value	42,070	29,909	'	'
Interest rate swap derivatives, carrying amount	4,398	2,496	'	'
Corporate debentures, fair value	19,646	11,091	'	'
Accrued interest payable, carrying amount	359	333	'	'
Interest rate swap derivatives, fair value	4,398	2,496	'	'
Accrued interest payable, fair value	359	333	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents, fair value	210,566	174,889	'	'
Trading securities, at fair value	0	0	'	'
Financial liabilities:	'	'	'	'
Deposits- without stated maturities, fair value	2,578,156	1,671,356	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Trading securities, at fair value	656	0	'	'
Investment securities available for sale, at fair value	535,767	457,086	'	'
Investment securities held to maturity, at fair value	5,428	'	'	'
Loans held for sale, fair value	522	1,010	'	'
Interest rate swap derivatives, assets fair value	3,983	2,603	'	'
Financial liabilities:	'	'	'	'
Deposits- with stated maturities, fair value	493,339	389,115	'	'
Securities sold under agreement to repurchase, fair value	30,456	20,457	'	'
Federal funds purchased, fair value	42,070	29,909	'	'
Interest rate swap derivatives, fair value	4,398	2,496	'	'
Accrued interest payable, fair value	359	333	'	'
Significant Unobservable Inputs (Level 3) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Trading securities, at fair value	0	0	'	'
Loans, less allowance for loan losses, fair value	2,419,027	1,456,295	'	'
Accrued interest receivable, fair value	8,416	6,337	'	'
Financial liabilities:	'	'	'	'
Corporate debentures, fair value	$19,646	$11,091	'	'

Fair_Value_Carrying_Amounts_an1

Fair Value - Carrying Amounts and Estimated Fair Values of Company's Financial Instruments (Parenthetical) (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value Disclosures [Abstract]	'	'	'	'	'	'
Deduction of Allowance for loan losses from loans	$19,842	$19,200	$20,454	$21,321	$23,820	$26,682

Reportable_Segments_Reconcilia

Reportable Segments - Reconciliation of Reportable Segment Revenues, Expenses and Profit (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest income	$37,347	$26,034	$100,208	$74,899	'
Interest expense	-2,097	-1,424	-5,508	-4,487	'
Net interest income (expense)	35,250	24,610	94,700	70,412	'
Provision for loan losses	-955	1,273	-808	259	'
Non interest income	6,559	8,607	18,691	28,749	'
Non interest expense	-35,534	-29,850	-104,090	-84,313	'
Income before provision for income taxes	5,320	4,640	8,493	15,107	'
Income tax (provision) benefit	-1,727	-1,531	-2,810	-4,664	'
Net income (loss)	3,593	3,109	5,683	10,443	'
Total assets	3,639,143	2,336,021	3,639,143	2,336,021	2,416,011
Operating Segments [Member] | Commercial and Retail Banking [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest income	36,541	25,304	97,944	72,777	'
Interest expense	-1,852	-1,267	-4,791	-4,019	'
Net interest income (expense)	34,689	24,037	93,153	68,758	'
Provision for loan losses	-955	1,273	-808	259	'
Non interest income	1,417	4,836	4,333	12,364	'
Non interest expense	-29,601	-24,620	-86,983	-65,917	'
Income before provision for income taxes	5,550	5,526	9,695	15,464	'
Income tax (provision) benefit	-1,812	-1,867	-3,250	-4,933	'
Net income (loss)	3,738	3,359	6,445	10,531	'
Total assets	3,473,586	2,194,300	3,473,586	2,194,300	'
Operating Segments [Member] | Correspondent Banking And Capital Markets Division [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest income	806	730	2,264	2,122	'
Interest expense	-5	-5	-16	-16	'
Net interest income (expense)	801	725	2,248	2,106	'
Non interest income	5,142	3,771	14,358	16,385	'
Non interest expense	-5,036	-4,377	-14,477	-15,815	'
Income before provision for income taxes	907	119	2,129	2,676	'
Income tax (provision) benefit	-350	-46	-821	-1,032	'
Net income (loss)	557	73	1,308	1,644	'
Total assets	153,243	138,395	153,243	138,395	'
Corporate Overhead and Administration [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Interest expense	-240	-152	-701	-452	'
Net interest income (expense)	-240	-152	-701	-452	'
Non interest expense	-897	-853	-2,630	-2,581	'
Income before provision for income taxes	-1,137	-1,005	-3,331	-3,033	'
Income tax (provision) benefit	435	382	1,261	1,301	'
Net income (loss)	-702	-623	-2,070	-1,732	'
Total assets	472,431	294,425	472,431	294,425	'
Elimination Entries [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Total assets	($460,117)	($291,099)	($460,117)	($291,099)	'

Reportable_Segments_Additional

Reportable Segments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Location
	County
	Subsidiary
Segment Reporting Measurement Disclosures [Abstract]	'
Number of non bank subsidiary	1
Number of counties in which company operates	20
Number of bank locations	58

Investment_Securities_Availabl2

Investment Securities Available for Sale - Fair Value of Available for Sale Securities and Related Gross Unrealized Gains and Losses Recognized in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$534,257	$464,386
Gross Unrealized Gains	6,542	5,544
Gross Unrealized Losses	5,033	12,844
Fair Value	535,767	457,086
Obligations of U.S. government sponsored entities and agencies [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	3	4
Gross Unrealized Losses	0	'
Fair Value	3	4
Mortgage Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	496,623	424,654
Gross Unrealized Gains	5,070	4,623
Gross Unrealized Losses	4,930	12,396
Fair Value	496,763	416,881
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	37,631	39,728
Gross Unrealized Gains	1,472	921
Gross Unrealized Losses	103	448
Fair Value	$39,000	$40,201

Investment_Securities_Availabl3

Investment Securities Available for Sale - Additional Information (Detail) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Security		Security
Investments Debt And Equity Securities [Abstract]	'	'	'
Gain (loss) on sale of securities acquired through Gulfstream acquisition	$0	$0	'
Tax provision related to net realized gains	18	400	'
Securities estimated fair value	$139,135	'	$108,871
Percentage of AFS securities held by any one issuer as a percentage of stockholders' equity	10.00%	'	10.00%
Number of securities representing specified criteria	0	'	0
Percentage of mortgage-backed securities held from U.S. government-sponsored entities and agencies	100.00%	'	'

Investment_Securities_Availabl4

Investment Securities Available for Sale - Schedule of Sales of Available for Sale Securities (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Investments Debt And Equity Securities [Abstract]	'	'
Proceeds	$323,542	$68,892
Gross gains	1,175	1,038
Gross losses	$1,129	'

Investment_Securities_Availabl5

Investment Securities Available for Sale - Fair Value and Amortized Cost of Available for Sale Securities by Contractual Maturity (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Investment securities available for sale, Due in one year or less, Fair Value	$0	'
Investment securities available for sale, Due after one year through five years, Fair Value	2,116	'
Investment securities available for sale, Due after five years through ten years, Fair Value	16,933	'
Investment securities available for sale, Due after ten years through thirty years, Fair Value	19,955	'
Investment securities available for sale, Mortgage backed securities, Fair Value	496,763	'
Fair Value	535,767	457,086
Investment securities available for sale, Due in one year or less, Amortized Cost	0	'
Investment securities available for sale, Due after one year through five years, Amortized Cost	2,016	'
Investment securities available for sale, Due after five years through ten years, Amortized Cost	16,302	'
Investment securities available for sale, Due after ten years through thirty years, Amortized Cost	19,316	'
Investment securities available for sale, Mortgage backed securities, Amortized Cost	496,623	'
Amortized Cost	$534,257	$464,386

Investment_Securities_Availabl6

Investment Securities Available for Sale - Investments Gross Unrealized Losses and Fair Value (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Total, Unrealized Losses	$5,033	$12,844
Mortgage Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	58,242	239,641
Less than 12 months, Unrealized Losses	265	10,221
12 months or more, Fair Value	140,972	18,793
12 months or more, Unrealized Losses	4,665	2,175
Total, Fair Value	199,214	258,434
Total, Unrealized Losses	4,930	12,396
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	'	7,603
Less than 12 months, Unrealized Losses	'	333
12 months or more, Fair Value	3,873	1,010
12 months or more, Unrealized Losses	103	115
Total, Fair Value	3,873	8,613
Total, Unrealized Losses	103	448
Total Temporarily Impaired Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	58,242	247,244
Less than 12 months, Unrealized Losses	265	10,554
12 months or more, Fair Value	144,845	19,803
12 months or more, Unrealized Losses	4,768	2,290
Total, Fair Value	203,087	267,047
Total, Unrealized Losses	$5,033	$12,844

Investment_Securities_Held_to_

Investment Securities Held to Maturity - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
	Security	Security
Schedule of Held-to-maturity Securities [Line Items]	'	'
Investment securities held to maturity (fair value of $5,428 and $-0- at September 30, 2014 and December 31, 2013, respectively)	$5,372	$0
Number of securities representing specified criteria	0	0
Percentage of HTM securities held by any one issuer as a percentage of stockholders' equity	10.00%	10.00%
Held to maturity investment with gross unrealized losses	$0	'
Held-to-maturity Securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Number of securities representing specified criteria	0	0

Investment_Securities_Held_to_1

Investment Securities Held to Maturity - Fair Value of Held to Maturity Securities and Related Gross Unrecognized Gains and Losses Recognized in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	$5,372	'
Gross Unrecognized Gains	56	'
Gross Unrecognized Losses	0	'
Held-to-maturity securities, fair value	5,428	0
Municipal Securities [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized Cost	5,372	'
Gross Unrecognized Gains	56	'
Gross Unrecognized Losses	0	'
Held-to-maturity securities, fair value	$5,428	'

Investment_Securities_Held_to_2

Investment Securities Held to Maturity - Fair Value and Amortized Cost of Held to Maturity Securities by Contractual Maturity (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments Debt And Equity Securities [Abstract]	'	'
Investment securities held to maturity, Due after ten years through thirty years, Fair Value	$5,428	'
Fair Value	5,428	0
Investment securities held to maturity, Due after ten years through thirty years, Amortized Cost	5,372	'
Amortized Cost	$5,372	'

Loans_Summary_of_Information_C

Loans - Summary of Information Concerning Loan Portfolio by Collateral Types (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Total loans excluding purchased credit impaired loans	$2,126,489	'	$1,242,758	'	'	'
Total loans	2,436,127	'	1,474,179	'	'	'
Net Loans	2,416,285	'	1,453,725	'	'	'
Allowance for loan losses for loans that are not PCI loans [Member]	'	'	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Real estate loans, Residential	572,244	'	458,331	'	'	'
Real estate loans, Commercial	1,136,595	'	528,710	'	'	'
Land, development and construction	78,514	'	62,503	'	'	'
Total real estate	1,787,353	'	1,049,544	'	'	'
Commercial	282,753	'	143,263	'	'	'
Consumer and other loans	55,527	'	49,547	'	'	'
Loans before unearned fees and deferred cost	2,125,633	'	1,242,354	'	'	'
Net unearned fees and costs	856	'	404	'	'	'
Allowance for loan losses on PCI loans [Member]	'	'	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Real estate loans, Residential	106,335	'	120,030	'	'	'
Real estate loans, Commercial	165,006	'	100,012	'	'	'
Land, development and construction	26,250	'	6,381	'	'	'
Total real estate	297,591	'	226,423	'	'	'
Commercial	11,226	'	3,850	'	'	'
Consumer and other loans	821	'	1,148	'	'	'
Total PCI loans	309,638	'	231,421	'	'	'
Allowance for loan losses for loans that are not PCI loans	-19,035	'	-19,694	'	'	'
Allowance for loan losses for PCI loans	-807	-960	-760	-2,056	-2,020	-2,649
FDIC Covered Loans Excluding Purchased Credit Impaired Loans [Member]	'	'	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Real estate loans, Residential	4,719	'	0	'	'	'
Real estate loans, Commercial	34,747	'	0	'	'	'
Land, development and construction	867	'	0	'	'	'
Total real estate	40,333	'	0	'	'	'
Commercial	1,382	'	0	'	'	'
Consumer and other loans	0	'	0	'	'	'
Total loans excluding purchased credit impaired loans	41,715	'	0	'	'	'
Allowance for loan losses for FDIC covered loans that are not PCI loans	0	'	0	'	'	'
FDIC Covered Loans Purchased Credit Impaired Loans [Member]	'	'	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Real estate loans, Residential	102,262	'	120,030	'	'	'
Real estate loans, Commercial	137,783	'	100,012	'	'	'
Land, development and construction	17,965	'	6,381	'	'	'
Total real estate	258,010	'	226,423	'	'	'
Commercial	6,679	'	3,850	'	'	'
Consumer and other loans	0	'	'	'	'	'
Total FDIC covered PCI loans	264,689	'	230,273	'	'	'
Allowance for loans losses for FDIC covered PCI loans	-807	'	-760	'	'	'
Total covered loans, net of allowance for loan losses	305,597	'	229,513	'	'	'
F D I C Covered Loans	'	'	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'	'	'
Total FDIC covered loans	$306,404	'	$230,273	'	'	'

Loans_Summary_of_Allowance_for

Loans - Summary of Allowance for Loan Losses and Recorded Investment in Loans by Portfolios (Detail) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses for loans that are not PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Allowance for loan losses on PCI loans [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Residential Portfolio Segment [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Commercial and Industrial [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Consumer and Other [Member]

Financing Receivable, Allowance for Credit Losses [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at beginning of period

'

'

'

'

'

'

'

'

'

'

'

'

$18,240

$21,800

$19,694

$24,033

$7,544

$6,026

$6,441

$8,272

$7,819

$9,791

$8,785

$6,831

$634

$4,071

$3,069

$6,211

$1,100

$1,064

$510

$1,745

$1,143

$848

$889

$974

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at beginning of period, purchased credit impaired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

960

2,020

760

2,649

522

1,577

138

2,335

'

'

'

'

77

130

89

'

361

313

533

314

'

'

'

'

Balance at beginning of period

19,200

23,820

20,454

26,682

9,242

6,579

839

3,158

2,102

1,043

1,166

889

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Charge-offs

-869

-1,570

-2,931

-5,919

'

'

'

'

'

'

'

'

-869

-1,570

-2,931

-5,404

-37

-53

-352

-1,127

-260

-1,147

-1,175

-3,328

-24

-127

-124

-310

-327

-53

-594

-112

-221

-190

-686

-527

0

0

0

-515

0

0

0

-515

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Loans charged-off

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-515

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recoveries of loans previously charged-off

556

344

1,511

817

'

'

'

'

'

'

'

'

556

344

1,511

817

107

42

482

82

349

163

784

396

45

41

93

161

15

22

19

43

40

76

133

135

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Net charge-offs

-313

-1,226

-1,420

-5,102

'

'

'

'

'

'

'

'

-313

-1,226

-1,420

-4,587

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-515

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Provision for loan losses

955

-1,273

808

-259

'

'

'

'

'

'

'

'

1,108

-1,309

761

-181

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

(Recovery) provision for loan losses

955

-1,273

808

-259

'

'

'

'

'

'

'

'

1,108

-1,309

761

-181

1,133

-1,431

2,176

-2,643

-1,415

844

-1,901

5,752

154

-644

-2,229

-2,721

1,032

-146

1,885

-789

204

68

830

220

-153

36

47

-78

-27

-190

357

-433

'

'

'

'

-47

-8

-59

122

-79

234

-251

233

'

'

'

'

Balance at end of period, not purchased credit impaired

'

'

'

'

'

'

'

'

'

'

'

'

19,035

19,265

19,035

19,265

8,747

4,584

8,747

4,584

6,493

9,651

6,493

9,651

809

3,341

809

3,341

1,820

887

1,820

887

1,166

802

1,166

802

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at end of period, purchased credit impaired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

807

2,056

807

2,056

495

1,387

495

1,387

'

'

'

'

30

122

30

122

282

547

282

547

'

'

'

'

Balance at end of period

19,842

21,321

19,842

21,321

9,242

6,579

839

3,158

2,102

1,043

1,166

889

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Provision for loan losses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($153)

$36

$47

($78)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans_Allowance_for_Loan_Losse

Loans - Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method (Detail) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	$1,977	'	$1,811	'	'	'
Collectively evaluated for impairment	17,058	'	17,883	'	'	'
Purchased credit impaired	807	'	760	'	'	'
Total ending allowance balance	19,842	19,200	20,454	21,321	23,820	26,682
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	26,695	'	24,110	'	'	'
Collectively evaluated for impairment	2,098,938	'	1,218,244	'	'	'
Purchased credit impaired	309,638	'	231,421	'	'	'
Total ending loan balance	2,435,271	'	1,473,775	'	'	'
Commercial Real Estate [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	1,151	'	1,377	'	'	'
Collectively evaluated for impairment	7,596	'	5,064	'	'	'
Purchased credit impaired	495	'	138	'	'	'
Total ending allowance balance	9,242	'	6,579	'	'	'
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	11,695	'	12,564	'	'	'
Collectively evaluated for impairment	1,124,900	'	516,146	'	'	'
Purchased credit impaired	165,006	'	100,012	'	'	'
Total ending loan balance	1,301,601	'	628,722	'	'	'
Residential Real Estate [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	435	'	395	'	'	'
Collectively evaluated for impairment	6,058	'	8,390	'	'	'
Total ending allowance balance	6,493	'	8,785	'	'	'
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	9,764	'	8,610	'	'	'
Collectively evaluated for impairment	562,480	'	449,721	'	'	'
Purchased credit impaired	106,335	'	120,030	'	'	'
Total ending loan balance	678,579	'	578,361	'	'	'
Land, Development, Construction [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	372	'	16	'	'	'
Collectively evaluated for impairment	437	'	3,053	'	'	'
Purchased credit impaired	30	'	89	'	'	'
Total ending allowance balance	839	'	3,158	'	'	'
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	2,975	'	1,307	'	'	'
Collectively evaluated for impairment	75,539	'	61,196	'	'	'
Purchased credit impaired	26,250	'	6,381	'	'	'
Total ending loan balance	104,764	'	68,884	'	'	'
Commercial and Industrial [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	3	'	2	'	'	'
Collectively evaluated for impairment	1,817	'	508	'	'	'
Purchased credit impaired	282	'	533	'	'	'
Total ending allowance balance	2,102	'	1,043	'	'	'
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	2,010	'	1,297	'	'	'
Collectively evaluated for impairment	280,743	'	141,966	'	'	'
Purchased credit impaired	11,226	'	3,850	'	'	'
Total ending loan balance	293,979	'	147,113	'	'	'
Consumer and Other [Member]	'	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'	'
Individually evaluated for impairment	16	'	21	'	'	'
Collectively evaluated for impairment	1,150	'	868	'	'	'
Total ending allowance balance	1,166	'	889	'	'	'
Loans:	'	'	'	'	'	'
Individually evaluated for impairment	251	'	332	'	'	'
Collectively evaluated for impairment	55,276	'	49,215	'	'	'
Purchased credit impaired	821	'	1,148	'	'	'
Total ending loan balance	$56,348	'	$50,695	'	'	'

Loans_Additional_Information_D

Loans - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013
Loans [Line Items]	'	'	'
Loans modification, modified terms allowance period minimum	'	'12 months	'
Loans modification, modified terms allowance period maximum	'	'24 months	'
Provision for loan loss expense	$126	$342	'
Partial charge offs for troubled debt restructured	63	161	'
Percentage of troubled debt restructured current pursuant to modified terms	'	80.00%	'
Non performing TDRs	3,055	3,055	4,684
Percentage of troubled debt restructured not performing pursuant to their modified terms	'	20.00%	'
Provision for loan loss expense within twelve months	62	66	'
Partial charge offs for troubled debt restructured	31	40	'
Loans at credit risk outstanding	500	500	'
Non-accretable expected cash flows	1,727	16,967	'
Gulfstream Bancshares, Inc. [Member]	'	'	'
Loans [Line Items]	'	'	'
Fair value adjustment for loans	'	7,680	'
Fair value adjustment for loans, percentage	'	2.30%	'
First Southern Bank Inc [Member]	'	'	'
Loans [Line Items]	'	'	'
Fair value adjustment for loans	'	$9,725	'
Fair value adjustment for loans, percentage	'	2.00%	'

Loans_Summary_of_Impaired_Loan

Loans - Summary of Impaired Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Impaired Financing Receivable [Abstract]	'	'
Performing TDRs (these are not included in nonperforming loans ("NPLs"))	$11,951	$10,763
Nonperforming TDRs (these are included in NPLs)	3,055	4,684
Total TDRs (these are included in impaired loans)	15,006	15,447
Impaired loans that are not TDRs	11,689	8,663
Total impaired loans	$26,695	$24,110

Loans_Troubled_Debt_Restructur

Loans - Troubled Debt Restructured Loans by Loans Type (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	$11,951	$10,763
Non performing TDRs	3,055	4,684
Total TDRs	15,006	15,447
Commercial Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	2,864	2,169
Non performing TDRs	1,635	3,077
Total TDRs	4,499	5,246
Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	714	555
Non performing TDRs	37	49
Total TDRs	751	604
Residential Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	7,587	7,221
Non performing TDRs	1,197	1,389
Total TDRs	8,784	8,610
Land, Development, Construction [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	579	608
Non performing TDRs	142	47
Total TDRs	721	655
Total Real Estate Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	11,030	9,998
Non performing TDRs	2,974	4,513
Total TDRs	14,004	14,511
Consumer and Other [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	207	210
Non performing TDRs	44	122
Total TDRs	$251	$332

Loans_Summary_of_Loans_by_Clas

Loans - Summary of Loans by Class Modified (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
	SecurityLoan	SecurityLoan
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	4	10
Recorded investment	$708	$2,267
Commercial Real Estate [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	3	5
Recorded investment	566	1,662
Residential Real Estate [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	'	3
Recorded investment	'	562
Land, Development, Construction [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	1	'
Recorded investment	142	'
Commercial Loans and Industrial [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	'	1
Recorded investment	'	25
Consumer and Other [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	'	1
Recorded investment	'	$18

Loans_Summary_of_Loans_Individ

Loans - Summary of Loans Individually Evaluated for Impairment by Class of Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance	$28,262	$26,882
Total impaired loans	26,695	24,110
Amount of allowance for loan losses allocated to impaired loans	1,977	1,811
Commercial Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	5,782	9,330
Unpaid principal balance, With an allowance recorded	6,364	5,257
Recorded investment, With no related allowance	5,651	7,439
Recorded investment, With an allowance recorded	6,044	5,125
Amount of allowance for loan losses allocated to impaired loans	1,151	1,377
Residential Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	6,551	5,052
Unpaid principal balance, With an allowance recorded	3,482	3,942
Recorded investment, With no related allowance	6,434	4,803
Recorded investment, With an allowance recorded	3,330	3,807
Amount of allowance for loan losses allocated to impaired loans	435	395
Land, Development, Construction [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	2,432	1,377
Unpaid principal balance, With an allowance recorded	1,192	147
Recorded investment, With no related allowance	1,825	1,168
Recorded investment, With an allowance recorded	1,150	139
Amount of allowance for loan losses allocated to impaired loans	372	16
Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	1,912	1,330
Unpaid principal balance, With an allowance recorded	279	102
Recorded investment, With no related allowance	1,778	1,241
Recorded investment, With an allowance recorded	232	56
Amount of allowance for loan losses allocated to impaired loans	3	2
Consumer and Other [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	0	5
Unpaid principal balance, With an allowance recorded	268	340
Recorded investment, With no related allowance	0	5
Recorded investment, With an allowance recorded	251	327
Amount of allowance for loan losses allocated to impaired loans	$16	$21

Loans_Summary_of_Impairment_by

Loans - Summary of Impairment by Class of Loans (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	$26,979	$39,286	$26,413	$40,924
Interest income recognized during impairment	155	390	454	1,108
Cash basis interest income recognized	0	0	0	0
Commercial Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	12,362	26,960	12,614	28,134
Interest income recognized during impairment	39	295	110	840
Cash basis interest income recognized	0	0	0	0
Residential Real Estate [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	9,745	8,829	9,488	9,014
Interest income recognized during impairment	83	78	247	222
Cash basis interest income recognized	0	0	0	0
Land, Development, Construction [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	2,521	1,436	1,894	1,423
Interest income recognized during impairment	11	2	30	10
Cash basis interest income recognized	0	0	0	0
Total Real Estate Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	24,628	37,225	23,996	38,571
Interest income recognized during impairment	133	375	387	1,072
Cash basis interest income recognized	0	0	0	0
Commercial Loans and Industrial [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	2,068	1,710	2,107	1,984
Interest income recognized during impairment	19	12	58	28
Cash basis interest income recognized	0	0	0	0
Consumer and Other Loans [Member]	'	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'	'
Average of impaired loans during the period	283	351	310	369
Interest income recognized during impairment	3	3	9	8
Cash basis interest income recognized	$0	$0	$0	$0

Loans_Summary_of_Nonperforming

Loans - Summary of Nonperforming Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Summary Of Nonperforming Loans [Abstract]	'	'
Non accrual loans	$31,067	$27,077
Loans past due over 90 days and still accruing interest	0	0
Total non performing loans	$31,067	$27,077

Loans_Summary_of_Recorded_Inve

Loans - Summary of Recorded Investment in Nonaccrual Loans and Loans Past Due Over 90 Days Still on Accrual by Class of Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	$31,067	$27,077
Loans past due over 90 days still accruing	0	0
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	13,253	13,925
Loans past due over 90 days still accruing	0	0
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	11,215	10,162
Loans past due over 90 days still accruing	0	0
Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	2,820	1,099
Loans past due over 90 days still accruing	0	0
Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	3,514	1,582
Loans past due over 90 days still accruing	0	0
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	265	309
Loans past due over 90 days still accruing	$0	$0

Loans_Summary_Aging_of_Recorde

Loans - Summary Aging of Recorded Investment in Past Due Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	$2,125,633	$1,242,354
30 - 59 days past due	9,899	6,143
60 - 89 days past due	1,750	4,365
Greater than 90 days past due	0	0
Total Past Due	11,649	10,508
Loans Not Past Due	2,082,917	1,204,769
Non accrual loans	31,067	27,077
Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	282,753	143,263
30 - 59 days past due	1,273	491
60 - 89 days past due	44	1
Greater than 90 days past due	0	0
Total Past Due	1,317	492
Loans Not Past Due	277,922	141,189
Non accrual loans	3,514	1,582
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	572,244	458,331
30 - 59 days past due	3,801	2,801
60 - 89 days past due	1,020	1,942
Greater than 90 days past due	0	0
Total Past Due	4,821	4,743
Loans Not Past Due	556,208	443,426
Non accrual loans	11,215	10,162
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	1,136,595	528,710
30 - 59 days past due	3,568	2,420
60 - 89 days past due	588	1,941
Greater than 90 days past due	0	0
Total Past Due	4,156	4,361
Loans Not Past Due	1,119,186	510,424
Non accrual loans	13,253	13,925
Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	78,514	62,503
30 - 59 days past due	894	136
60 - 89 days past due	15	241
Greater than 90 days past due	0	0
Total Past Due	909	377
Loans Not Past Due	74,785	61,027
Non accrual loans	2,820	1,099
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	55,527	49,547
30 - 59 days past due	363	295
60 - 89 days past due	83	240
Greater than 90 days past due	0	0
Total Past Due	446	535
Loans Not Past Due	54,816	48,703
Non accrual loans	$265	$309

Loans_Risk_Category_of_Loans_b

Loans - Risk Category of Loans by Class of Loans, Excluding Purchased Credit Impaired Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$572,244	$458,331
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	55,527	49,547
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	2,004,819	1,111,946
Pass [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	1,065,525	448,762
Pass [Member] | Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	275,095	134,901
Pass [Member] | Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	545,003	428,671
Pass [Member] | Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	64,286	50,164
Pass [Member] | Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	54,910	49,448
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	54,776	67,447
Special Mention [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	36,031	46,427
Special Mention [Member] | Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	3,119	4,490
Special Mention [Member] | Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	5,376	6,438
Special Mention [Member] | Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	9,967	9,566
Special Mention [Member] | Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	283	526
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	66,038	63,961
Substandard [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	35,039	33,521
Substandard [Member] | Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	4,539	3,872
Substandard [Member] | Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	21,865	23,222
Substandard [Member] | Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	4,261	2,773
Substandard [Member] | Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	334	573
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	0	0
Doubtful [Member] | Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	0	0
Doubtful [Member] | Commercial Loans and Industrial [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	0	0
Doubtful [Member] | Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	0	0
Doubtful [Member] | Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	0	0
Doubtful [Member] | Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$0	$0

Loans_Investment_in_Residentia

Loans - Investment in Residential and Consumer Loans, Excluding Loans from Purchased Credit Impaired Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$572,244	$458,331
Residential Real Estate [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	561,029	448,169
Residential Real Estate [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	11,215	10,162
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	55,527	49,547
Consumer and Other [Member] | Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	55,262	49,238
Consumer and Other [Member] | Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$265	$309

Loans_Summary_of_Total_Contrac

Loans - Summary of Total Contractually Required Principal and Interest Cash Payments, Management's Estimate of Expected Total Cash Payments and Carrying Value of Loans (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'
Contractually required principal and interest	$509,272	$389,537
Non-accretable difference	-73,791	-55,304
Cash flows expected to be collected	435,481	334,233
Accretable yield	-125,843	-102,812
Carrying value of acquired loans	309,638	231,421
Allowance for loan losses	-807	-760
Carrying value less allowance for loan losses	$308,831	$230,661

Loans_Summary_of_Changes_in_To

Loans - Summary of Changes in Total Contractually Required Principal and Interest Cash Payments (Detail) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

In Thousands, unless otherwise specified

Contractually Required Principal and Interest [Member]

Contractually Required Principal and Interest [Member]

Contractually Required Principal and Interest [Member]

Contractually Required Principal and Interest [Member]

Non-Accretable Difference [Member]

Non-Accretable Difference [Member]

Non-Accretable Difference [Member]

Non-Accretable Difference [Member]

Cash Flows Expected to be Collected [Member]

Cash Flows Expected to be Collected [Member]

Cash Flows Expected to be Collected [Member]

Cash Flows Expected to be Collected [Member]

Accretable Yield [Member]

Accretable Yield [Member]

Accretable Yield [Member]

Accretable Yield [Member]

Carry Value of Acquired Loans [Member]

Carry Value of Acquired Loans [Member]

Carry Value of Acquired Loans [Member]

Carry Value of Acquired Loans [Member]

Financing Receivable, Recorded Investment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contractually required principal and interest, beginning balance

$509,272

$389,537

$566,948

$449,146

$389,537

$534,989

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-accretable difference, beginning balance

-73,791

-55,304

'

'

'

'

-79,985

-90,060

-55,304

-142,855

'

'

'

'

'

'

'

'

'

'

'

'

Cash flows expected to be collected, beginning balance

435,481

334,233

'

'

'

'

'

'

'

'

486,963

359,086

334,233

392,134

'

'

'

'

'

'

'

'

Accretable yield, beginning balance

-125,843

-102,812

'

'

'

'

'

'

'

'

'

'

'

'

-133,093

-99,407

-102,812

-93,107

'

'

'

'

Carrying value of acquired loans

309,638

231,421

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

353,870

259,679

231,421

299,027

Effect of acquisitions

'

'

'

'

229,249

'

'

'

-45,293

'

'

'

183,956

'

'

'

-32,204

'

'

'

151,752

'

Income accretion

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,099

8,988

25,561

24,835

9,099

8,988

25,561

24,835

All other adjustments

'

'

-57,676

-32,581

-109,514

-118,424

6,194

18,250

26,806

71,045

-51,482

-14,331

-82,708

-47,379

-1,849

-10,186

-16,388

-32,333

-53,331

-24,517

-99,096

-79,712

Contractually required principal and interest, ending balance

509,272

389,537

509,272

416,565

509,272

416,565

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Non-accretable difference, ending balance

-73,791

-55,304

'

'

'

'

-73,791

-71,810

-73,791

-71,810

'

'

'

'

'

'

'

'

'

'

'

'

Cash flows expected to be collected, ending balance

435,481

334,233

'

'

'

'

'

'

'

'

435,481

344,755

435,481

344,755

'

'

'

'

'

'

'

'

Accretable yield, ending balance

-125,843

-102,812

'

'

'

'

'

'

'

'

'

'

'

'

-125,843

-100,605

-125,843

-100,605

'

'

'

'

Carrying value of acquired loans

$309,638

$231,421

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$309,638

$244,150

$309,638

$244,150

FDIC_Indemnification_Asset_Add

FDIC Indemnification Asset - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
	Bank		Bank	Bank
Fdic Indemnification Asset [Abstract]	'	'	'	'
Number of acquisitions under agreement	2	'	2	3
Federal Deposit Insurance Corporation reimbursable expenses	$38	($513)	'	'

FDIC_Indemnification_Asset_FDI

FDIC Indemnification Asset - FDIC Loss Share Indemnification Asset (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fdic Loss Share Indemnification Asset [Abstract]	'	'
Beginning of the year	$73,877	$119,691
Effect of acquisition	2,636	'
Amortization, net	-15,097	-13,765
Indemnification revenue	1,864	6,055
Indemnification of foreclosure expense	307	4,413
Proceeds from FDIC	-9,593	-42,004
Impairment (recovery) of loan pool	38	-513
Period end balance	$54,032	$73,877

FDIC_Indemnification_Asset_FDI1

FDIC Indemnification Asset - FDIC Activity In True-up Payment Liability (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Fdic Loss Share Indemnification Asset [Abstract]	'	'
Beginning of the year	$444	$402
Effect of acquisition	682	'
True-up liability accrual	47	42
Period end balance	$1,173	$444

Business_Combinations_Addition

Business Combinations - Additional Information (Detail) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Jan. 17, 2014

Sep. 30, 2014

Sep. 30, 2014

Jan. 17, 2014

Jan. 17, 2014

Sep. 19, 2014

Sep. 18, 2014

Jun. 01, 2014

30-May-14

Sep. 18, 2014

Sep. 30, 2014

Sep. 30, 2014

Jun. 01, 2014

Jun. 01, 2014

Gulfstream Bancshares, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Core Deposits [Member]

Purchased Credit-Impaired [Member]

Common Stock [Member]

Branch

Branch

Sales

Core Deposits [Member]

Purchased Credit-Impaired [Member]

Purchased Credit-Impaired [Member]

Common Stock [Member]

Branch

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Increase in total assets

'

'

23.00%

'

'

'

'

'

'

32.00%

'

'

'

'

'

'

Increase in total deposits

'

'

23.00%

'

'

'

'

'

'

33.00%

'

'

'

'

'

'

Goodwill on the acquisition

$76,981,000

$44,924,000

$31,516,000

'

'

'

'

'

'

$541,000

'

'

'

'

'

'

Fair value estimates change period

'

'

'1 year

'

'

'

'

'

'

'1 year

'

'

'

'

'

'

Outstanding common stock acquired percentage

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

100.00%

Exchanged price

'

'

$14.65

'

'

'

'

'

'

$3

'

'

'

'

'

'

Exchanged ratio for share

'

'

3.012

'

'

'

'

'

'

0.3

0.3

'

'

'

'

'

Total purchase consideration

'

'

82,040,000

'

'

'

'

'

6,000,000

195,404,000

'

'

'

'

'

'

Loans at fair value

'

'

359,583,000

'

'

'

'

'

'

599,525,000

'

'

'

'

'

'

Net Outstanding principal balance

'

'

18,267,000

'

'

'

'

'

'

30,811,000

'

'

'

'

'

'

Estimated discount to outstanding principal balance

'

'

4.80%

'

'

'

'

'

'

4.90%

'

'

'

'

'

'

Percentage of loans acquired

'

'

24.40%

'

'

'

'

'

'

33.00%

'

'

'

'

'

'

Loans with credit deficiencies

'

'

'

'

'

30,068,000

'

'

'

'

'

'

'

121,684,000

121,684,000

'

Loan relationship balances

'

'

'

'Greater than $500

'

'

'

'

'

'

'

'

'

'

'

'

Deposit intangible asset

'

'

'

'

4,173,000

'

'

'

'

'

'

'

7,396,000

'

'

'

Estimated economic life

'

'

'

'

'10 years

'

'

'

'

'

'

'

'10 years

'

'

'

Number of branch offices sold

'

'

'

'

'

'

'

'

6

'

'

5

'

'

'

'

Deposits transferred

'

'

'

'

'

'

'

'

$170,000,000

'

'

'

'

'

'

'

Number of branches closed

'

'

'

'

'

'

'

4

'

'

'

'

'

'

'

'

Percentage of premium on purchase consideration

'

'

'

'

'

'

'

'

1.50%

'

'

'

'

'

'

'

Business_Combinations_Summary_

Business Combinations - Summary of Purchase Price Calculation (Detail) (USD $)	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 17, 2014	Sep. 18, 2014	Jun. 01, 2014	30-May-14
	Gulfstream Bancshares, Inc. [Member]	First Southern Bancorp, Inc. [Member]	First Southern Bancorp, Inc. [Member]	First Southern Bancorp, Inc. [Member]
Business Acquisition [Line Items]	'	'	'	'
Number of shares of FSB common stock outstanding	1,569,364	'	'	31,539,698
FSB preferred shares that convert to FSB common shares upon a change in control	155,629	'	'	48,375
Total FSB common shares including conversion of preferred shares	1,724,993	'	'	31,588,073
Per share exchange ratio	3.012	'	0.3	0.3
Number of shares of CenterState common stock	5,195,541	'	'	9,476,045
Multiplied by CenterState common stock price per share on January 16, 2014	$10.23	'	$10.62	'
Fair value of CenterState common stock issued	$53,150	'	$100,636	'
Total FSB common shares including conversion of preferred shares	1,724,993	'	'	31,588,073
Multiplied by the cash consideration each FSB share is entitled to receive	$14.65	'	$3	'
Total Cash Consideration	25,271	'	94,765	'
Total Stock Consideration	53,150	'	100,636	'
Total Cash Consideration	25,273	'	94,768	'
Total consideration to be paid to Gulfstream common shareholders	78,423	'	'	'
Fair value of current Gulfstream stock options to be converted to CenterState stock options	3,617	'	'	'
Total purchase price	$82,040	$6,000	$195,404	'

Business_Combinations_Summary_1

Business Combinations - Summary of Purchase Price Calculation (Parenthetical) (Detail) (USD $)	Jan. 17, 2014	30-May-14
In Thousands, except Share data, unless otherwise specified	Gulfstream Bancshares, Inc. [Member]	First Southern Bancorp, Inc. [Member]
Business Acquisition [Line Items]	'	'
Fractional shares	138	377
Fractional shares amount	$2	$3

Business_Combinations_Summary_2

Business Combinations - Summary of Preliminary Estimates of Fair Value of Assets Purchased, Including Goodwill and Liabilities Assumed (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Jan. 17, 2014	Jun. 01, 2014
In Thousands, unless otherwise specified			Gulfstream Bancshares, Inc. [Member]	First Southern Bancorp, Inc. [Member]
Assets:	'	'	'	'
Cash and cash equivalents	'	'	$102,278	$148,257
Loans, excluding purchased credit impaired loans	'	'	329,515	477,841
Purchased credit impaired loans	'	'	30,068	121,684
Loans held for sale	'	'	247	'
Investments	'	'	60,816	204,723
Interest receivable	'	'	1,087	2,007
Branch real estate	'	'	5,519	1,594
Furniture and fixtures	'	'	262	1,282
Bank property held for sale	'	'	'	7,119
Federal Reserve Bank and Federal Home Loan Bank stock	'	'	885	5,576
Bank owned life insurance	'	'	4,939	2,555
Other repossessed real estate owned covered by FDIC loss share agreements	25,452	19,111	'	22,731
Other repossessed real estate owned	'	'	2,694	454
Core deposit intangible	'	'	4,173	7,396
Goodwill	76,981	44,924	31,516	541
Deferred tax asset	'	'	'	43,889
Other assets	'	'	11,261	4,581
Total assets acquired	'	'	585,260	1,052,230
Liabilities:	'	'	'	'
Deposits	'	'	478,999	662,959
Deposits held for sale	'	'	'	189,674
Federal Home loan advances	'	'	5,708	'
Repurchase agreements	'	'	7,576	'
Interest payable	'	'	125	58
Official checks outstanding	'	'	826	'
Corporate debentures	'	'	6,745	'
Other liabilities	'	'	3,241	4,135
Total liabilities assumed	'	'	$503,220	$856,826

Business_Combinations_Summary_3

Business Combinations - Summary of Contractually Required Principal and Interest Cash Payments for Purchased Credit Impaired Loans (Detail) (Purchased Credit-Impaired [Member], USD $)	Jan. 17, 2014	Sep. 30, 2014	Jun. 01, 2014
In Thousands, unless otherwise specified	Gulfstream Bancshares, Inc. [Member]	First Southern Bancorp, Inc. [Member]	First Southern Bancorp, Inc. [Member]
Business Acquisition [Line Items]	'	'	'
Contractually required principal and interest	$48,289	'	$180,960
Non-accretable difference	-11,766	'	-33,527
Cash flows expected to be collected	36,523	'	147,433
Accretable yield	-6,455	'	-25,749
Total purchased credit-impaired loans acquired	$30,068	$121,684	$121,684

Business_Combinations_Summary_4

Business Combinations - Summary of Fair Value of Acquired Loans and Unpaid Principal Balance (Detail) (USD $)

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

Jan. 17, 2014

Jun. 01, 2014

In Thousands, unless otherwise specified

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Book Balance [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Fair Value [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Single Family Residential Real Estate [Member]

Single Family Residential Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Commercial Loans and Industrial [Member]

Commercial Loans and Industrial [Member]

Consumer and Other Loans [Member]

Consumer and Other Loans [Member]

Purchased Credit-Impaired [Member]

Purchased Credit-Impaired [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Single Family Residential Real Estate [Member]

Single Family Residential Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Land, Development, Construction [Member]

Land, Development, Construction [Member]

Commercial Loans and Industrial [Member]

Commercial Loans and Industrial [Member]

Consumer and Other Loans [Member]

Consumer and Other Loans [Member]

Purchased Credit-Impaired [Member]

Purchased Credit-Impaired [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Gulfstream Bancshares, Inc. [Member]

First Southern Bancorp, Inc. [Member]

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Carrying value and Fair value of acquired loans

$377,850

$630,336

$33,506

$60,332

$185,250

$387,589

$30,387

$17,238

$85,940

$20,267

$2,112

$2,496

$40,655

$142,414

$359,583

$599,525

$32,319

$57,693

$183,189

$382,162

$27,704

$15,942

$84,203

$19,906

$2,100

$2,138

$30,068

$121,684

Business_Combinations_Schedule

Business Combinations - Schedule of Measurement Period Adjustments (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Jan. 17, 2014	Jan. 17, 2014	Jan. 17, 2014
In Thousands, unless otherwise specified			Gulfstream Bancshares, Inc. [Member]	As Initially Reported [Member]	Measurement Period Adjustments [Member]
				Gulfstream Bancshares, Inc. [Member]	Gulfstream Bancshares, Inc. [Member]
Assets:	'	'	'	'	'
Cash and cash equivalents	'	'	$102,278	$102,278	'
Loans, held for investment	'	'	329,515	329,515	'
Purchased credit impaired loans	'	'	30,068	30,068	'
Loans held for sale	'	'	247	247	'
Investments	'	'	60,816	60,816	'
Interest receivable	'	'	1,087	1,087	'
Branch real estate	'	'	5,519	5,519	'
Furniture and fixtures	'	'	262	262	'
FHLB stock	'	'	885	885	'
Bank owned life insurance	'	'	4,939	4,939	'
Other repossessed real estate owned	'	'	2,694	3,365	-671
Core deposit intangible	'	'	4,173	4,173	'
Goodwill	76,981	44,924	31,516	31,104	412
Other assets	'	'	11,261	11,002	259
Total assets acquired	'	'	585,260	585,260	'
Liabilities:	'	'	'	'	'
Deposits	'	'	478,999	478,999	'
Federal Home loan advances	'	'	5,708	5,708	'
Repurchase agreements	'	'	7,576	7,576	'
Interest payable	'	'	125	125	'
Official checks outstanding	'	'	826	826	'
Trust Preferred Security	'	'	6,745	6,745	'
Other liabilities	'	'	3,241	3,241	'
Total liabilities assumed	'	'	$503,220	$503,220	'

Business_Combinations_ProForma

Business Combinations - Pro-Forma Financial Information And Actual Results of Acquisition (Detail) (First Southern Bank Inc And Gulfstream Bancshares Inc [Member], USD $)	3 Months Ended	9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
First Southern Bank Inc And Gulfstream Bancshares Inc [Member]	'	'	'
Business Acquisition [Line Items]	'	'	'
Net interest income	$39,500	$110,247	$114,335
Net income available to common shareholders	$6,056	$14,271	$17,595
EPS - basic	$0.14	$0.32	$0.39
EPS - diluted	$0.13	$0.32	$0.39