CenterState Bank (CSFL) 10-K5 Mar 142013 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2013	Feb. 28, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Registrant Name	'CenterState Banks, Inc.	'	'
Entity Central Index Key	'0001102266	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	35,405,907	'
Entity Public Float	'	'	$181,708,000

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets	'	'
Cash and due from banks	$21,581	$19,160
Federal funds sold and Federal Reserve Bank deposits	153,308	117,588
Cash and cash equivalents	174,889	136,748
Trading securities, at fair value	'	5,048
Investment securities available for sale, at fair value	457,086	425,758
Loans held for sale, at lower of cost or fair value	1,010	2,709
Loans covered by FDIC loss share agreements	230,273	296,295
Loans, excluding those covered by FDIC loss share agreements	1,243,906	1,139,568
Allowance for loan losses	-20,454	-26,682
Net loans	1,453,725	1,409,181
Accrued interest receivable	6,337	6,100
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	8,189	9,749
Bank premises and equipment, net	96,619	97,954
Deferred income tax asset, net	5,296	-1,892
Goodwill	44,924	44,924
Core deposit intangible	4,958	5,944
Trust intangible	1,158	1,363
Bank owned life insurance	49,285	47,957
Other repossessed real estate owned covered by FDIC loss share agreements	19,111	26,783
Other repossessed real estate owned	6,409	6,875
FDIC indemnification asset	73,433	119,289
Prepaid expenses and other assets	13,138	16,858
Total assets	2,415,567	2,363,240
Deposits:	'	'
Interest bearing	1,411,316	1,477,722
Noninterest bearing	644,915	519,510
Total deposits	2,056,231	1,997,232
Securities sold under agreement to repurchase	20,457	18,792
Federal funds purchased	29,909	38,932
Corporate debentures	16,996	16,970
Accrued interest payable	333	579
Deferred income tax liability, net	'	1,892
Accounts payable and accrued expenses	18,262	15,312
Total liabilities	2,142,188	2,089,709
Stockholders' Equity:	'	'
Preferred stock, $.01 par value, $1,000 liquidation preference; 5,000,000 shares authorized, no shares issued and outstanding at December 31, 2013 and 2012	'	'
Common stock, $.01 par value: 100,000,000 shares authorized; 30,112,475 and 30,079,767 shares issued and outstanding at December 31, 2013 and 2012, respectively	301	301
Additional paid-in capital	229,544	228,952
Retained earnings	48,018	36,979
Accumulated other comprehensive (loss) income	-4,484	7,299
Total stockholders' equity	273,379	273,531
Total liabilities and stockholders' equity	$2,415,567	$2,363,240

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Preferred stock, par value	$0.01	$0.01
Preferred stock, liquidation preference	$1,000	$1,000
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	30,112,475	30,079,767
Common stock, shares outstanding	30,112,475	30,079,767

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest income:	'	'	'
Loans	$88,274	$81,592	$65,893
Investment securities available for sale:	'	'	'
Taxable	9,889	11,297	14,296
Tax-exempt	1,430	1,423	1,422
Federal funds sold and other	785	638	632
Total interest income	100,378	94,950	82,243
Interest expense:	'	'	'
Deposits	5,184	7,529	11,499
Securities sold under agreement to repurchase	78	86	84
Corporate debentures	602	637	448
Federal funds purchased	21	30	49
Federal Home Loan Bank advances and other borrowings	'	199	127
Total interest expenses	5,885	8,481	12,207
Net interest income	94,493	86,469	70,036
Provision for loan losses	-76	9,220	45,991
Net interest income after provision for loan losses	94,569	77,249	24,045
Non interest income:	'	'	'
Income from correspondent banking and bond sales division	17,023	32,806	24,889
Other correspondent banking related revenue	3,387	2,901	2,177
Service charges on deposit accounts	8,457	6,598	6,316
Debit, prepaid, ATM and merchant card related fees	5,420	4,623	3,194
Wealth management related revenue	4,551	3,760	1,801
FDIC indemnification income	5,542	6,017	1,132
FDIC indemnification asset amortization	-13,807	-3,096	-503
Bank owned life insurance income	1,328	1,436	967
Other	985	1,340	1,515
Net gain on sale of securities available for sale	1,060	2,423	3,464
Bargain purchase gain	'	453	57,020
Total non interest income	33,946	59,261	101,972
Non interest expense:	'	'	'
Salaries, wages and employee benefits	60,369	69,938	58,245
Occupancy expense	7,702	8,697	8,271
Depreciation of premises and equipment	5,876	5,678	4,207
Marketing expenses	2,517	2,564	2,791
Data processing expense	3,784	3,988	4,680
Legal, audit and other professional fees	3,754	2,527	2,729
Supplies, stationary and printing	1,121	1,124	1,285
Core deposit intangible (CDI) amortization	986	1,155	804
Bank regulatory expenses	2,369	2,429	2,621
ATM and debit card related expenses	1,788	1,207	1,631
Postage and delivery	1,084	1,148	930
Loss on sale of other repossessed real estate ("OREO")	3,122	1,185	545
Valuation write down of other repossessed real estate ("OREO")	6,012	4,258	6,751
Loss on repossessed assets other than real estate	401	123	377
Foreclosure related expenses	3,191	5,640	5,023
Merger and acquisition related expenses	722	2,714	7,696
Other expenses	5,964	7,605	6,103
Total other expenses	110,762	121,980	114,689
Income before provision for income taxes	17,753	14,530	11,328
Provision for income taxes	5,510	4,625	3,419
Net income	12,243	9,905	7,909
Other comprehensive income, net of tax:	'	'	'
Unrealized securities holding (loss) gain on available for sale securities, net of income taxes	-11,132	3,097	4,958
Less: reclassified adjustments for gain included in net income, net of income taxes at December 31, 2013, 2012, and 2011 of $409, $912, and $1,303, respectively. Amounts are included in net gain on sale of securities available for sale in total non interest income. Provision for income taxes associated with the reclassification adjustment for the years ended December 31, 2013, 2012, and 2011 was $409, $912, and $1,303, respectively.	651	1,511	2,161
Net unrealized gain (loss) on available for sale securities, net of income taxes	-11,783	1,586	2,797
Total comprehensive income	$460	$11,491	$10,706
Earnings per share:	'	'	'
Basic	$0.41	$0.33	$0.26
Diluted	$0.41	$0.33	$0.26
Common shares used in the calculation of earnings per share:	'	'	'
Basic	30,102,777	30,073,959	30,034,573
Diluted	30,220,127	30,141,863	30,039,187

Consolidated_Statements_of_Ope1

Consolidated Statements of Operations and Comprehensive Income (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Reclassifications of gain included in net income, income taxes	$409	$912	$1,303

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
In Thousands, except Share data, unless otherwise specified	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balances at beginning at Dec. 31, 2010	$252,249	$300	$227,464	$21,569	$2,916
Balances at beginning, shares at Dec. 31, 2010	'	30,004,761	'	'	'
Comprehensive income:	'	'	'	'	'
Net income	7,909	'	'	7,909	'
Unrealized holding gain (loss) on available for sale securities, net of deferred income taxes	2,797	'	'	'	2,797
Total comprehensive income	10,706	'	'	'	'
Dividends paid - common ($0.04 per share)	-1,201	'	'	-1,201	'
Stock options exercised, including tax benefit	96	1	95	'	'
Stock options exercised, including tax benefit, shares	14,903	14,903	'	'	'
Stock based compensation expense	398	'	398	'	'
Stock grants issued	385	'	385	'	'
Stock grants issued, shares	'	35,835	'	'	'
Balances at ending at Dec. 31, 2011	262,633	301	228,342	28,277	5,713
Balances at ending, shares at Dec. 31, 2011	'	30,055,499	'	'	'
Comprehensive income:	'	'	'	'	'
Net income	9,905	'	'	9,905	'
Unrealized holding gain (loss) on available for sale securities, net of deferred income taxes	1,586	'	'	'	1,586
Total comprehensive income	11,491	'	'	'	'
Dividends paid - common ($0.04 per share)	-1,203	'	'	-1,203	'
Stock based compensation expense	363	'	363	'	'
Stock grants issued	247	'	247	'	'
Stock grants issued, shares	'	24,268	'	'	'
Balances at ending at Dec. 31, 2012	273,531	301	228,952	36,979	7,299
Balances at ending, shares at Dec. 31, 2012	30,079,767	30,079,767	'	'	'
Comprehensive income:	'	'	'	'	'
Net income	12,243	'	'	12,243	'
Unrealized holding gain (loss) on available for sale securities, net of deferred income taxes	-11,783	'	'	'	-11,783
Total comprehensive income	460	'	'	'	'
Dividends paid - common ($0.04 per share)	-1,204	'	'	-1,204	'
Stock options exercised, including tax benefit, shares	1,714	1,714	'	'	'
Stock based compensation expense	292	'	292	'	'
Stock grants issued	300	'	300	'	'
Stock grants issued, shares	'	30,994	'	'	'
Balances at ending at Dec. 31, 2013	$273,379	$301	$229,544	$48,018	($4,484)
Balances at ending, shares at Dec. 31, 2013	30,112,475	30,112,475	'	'	'

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Change in unrealized holding gain on available for sale securities, deferred income tax benefit	$7,220	$957	$1,688
Dividends paid - common, per share	$0.04	$0.04	$0.04
Retained Earnings [Member]	'	'	'
Dividends paid - common, per share	$0.04	$0.04	$0.04
Accumulated Other Comprehensive Income (Loss) [Member]	'	'	'
Change in unrealized holding gain on available for sale securities, deferred income tax benefit	$7,220	$957	$1,688

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income	$12,243	$9,905	$7,909
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Provision for loan losses	-76	9,220	45,991
Depreciation of premises and equipment	5,876	5,678	4,207
Accretion of purchase accounting adjustments	-32,571	-25,211	-12,849
Net amortization/accretion of investment securities	6,473	8,562	7,284
Net deferred loan origination fees	-862	-181	-90
Loss on sale of other real estate owned	3,122	1,185	545
Valuation write down of other repossessed real estate ("OREO")	6,012	4,258	6,751
Loss on sale of repossessed assets other than real estate	331	-10	234
Valuation write down on repossessed assets other than real estate	70	133	143
Loss on sale or disposal of fixed assets	-12	-233	-17
Deferred income taxes	32	4,386	3,300
Net gain on sale of securities	-1,060	-2,423	-3,464
Trading securities revenue	-255	-690	-485
Purchases of trading securities	-198,186	-367,105	-249,430
Proceeds from sale of trading securities	203,489	362,747	252,140
Gain on sale of loans held for sale	-333	-270	-143
Loans originated and held for sale	-20,824	-18,931	-12,309
Proceeds from sale of loans held for sale	22,856	20,233	9,384
Impairment of bank property held for sale	'	614	'
Stock based compensation expense	609	631	705
Bank owned life insurance income	-1,328	-1,436	-967
Bargain purchase gain	'	-453	-57,020
Cash provided by (used in) changes in:	'	'	'
Net change in accrued interest receivable, prepaid expenses, and other assets	5,966	-1,721	-871
Net change in interest payable, accounts payable and accrued expenses	2,687	-851	-2,805
Net cash flows used in (from) operating activities	14,259	8,037	-1,857
Cash flows from investing activities:	'	'	'
Purchases of investment securities available for sale	-31,132	-26,157	-93,618
Purchases of mortgage backed securities available for sale	-205,005	-178,332	-369,874
Purchases of FHLB and FRB stock	'	-1,986	'
Proceeds from callable investment securities available for sale	9,400	76,245	91,970
Proceeds from maturities of investment securities available for sale	165	312	1,081
Proceeds from pay-downs of mortgage backed securities available for sale	101,333	126,381	107,532
Proceeds from sales of investment securities available for sale	31,804	22,758	30,765
Proceeds from sales of mortgage backed securities available for sale	37,691	146,051	142,572
Proceeds from sales of FHLB and FRB stock	1,560	4,835	3,561
Purchase of bank owned life insurance	'	-10,000	'
(Increase) decrease in loans, net of repayments	-39,813	51,482	50,595
Proceeds from the sale of loans in wholesale market	'	'	18,251
Cash received from FDIC loss sharing agreements	42,004	21,787	11,620
Purchases of premises and equipment, net	-4,665	-9,425	-9,341
Proceeds from the sale of premises and equipment, net	136	1,154	506
Proceeds from sale of bank property held for sale	931	505	'
Proceeds from sale of other real estate owned	28,585	22,900	18,766
Net cash from bank acquisitions	'	81,061	77,577
Net cash flows provided by (from) investing activities	-27,006	329,571	81,963
Cash flows from financing activities:	'	'	'
Net increase (decrease) in deposits	59,450	-339,200	-77,413
Net increase in securities sold under agreement to repurchase	1,665	4,140	863
Net decrease in federal funds purchased	-9,023	-15,692	-13,871
Net decrease in other borrowed funds	'	'	-15,000
Stock options exercised, including tax benefit	'	'	96
Dividends paid	-1,204	-1,203	-1,201
Net cash flows used in (from) financing activities	50,888	-351,955	-106,526
Net change in cash and cash equivalents	38,141	-14,347	-26,420
Cash and cash equivalents at beginning of year	136,748	151,095	177,515
Cash and cash equivalents at end of year	174,889	136,748	151,095
Transfer of loans to other real estate owned	29,581	26,155	20,900
Cash paid during the year for:	'	'	'
Interest	6,607	10,319	14,090
Income taxes	$3,473	$10	$235

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	-1	Summary of significant accounting policies

		(a)	Nature of operations and principles of consolidation
	The consolidated financial statements of CenterState Banks, Inc. (the “Company”) include the accounts of CenterState Banks, Inc. (the “Parent Company”), and its wholly owned subsidiaries CenterState Bank of Florida, N.A. and R4ALL, Inc. All significant intercompany accounts and transactions have been eliminated in consolidation.
	At December 31, 2013, the Company, through its subsidiary banks, operates through 55 full service banking locations in eighteen counties throughout Central Florida, providing traditional deposit and lending products and services to its commercial and retail customers. The Company’s primary deposit products are checking, savings and term certificate accounts, and its primary lending products include commercial real estate loans, residential real estate loans, commercial loans and consumer loans. Substantially all loans are secured by commercial real estate, residential real estate, business assets or consumer assets. There are no significant concentrations of loans to any one industry or customer. However, the customers’ ability to repay their loans is dependent on the real estate and general economic conditions in the area.
	The Company, through its CenterState Bank of Florida, N.A. subsidiary, also operates a correspondent banking and bond sales division. The division is integrated with and part of the subsidiary bank located in Winter Haven, Florida, although the majority of the bond salesmen, traders and support personnel are physically located in leased facilities in Birmingham, Alabama and Atlanta, Georgia. The primary revenue generating activity of this division is commissions earned on fixed income security sales. Other revenue generating activities include correspondent bank deposits (i.e. federal funds purchased), fees earned on correspondent bank checking accounts, fees earned from safe-keeping activities, bond accounting services for correspondents, and asset/liability consulting related activities.
	R4ALL, Inc. is a non bank subsidiary incorporated during the third quarter of 2009. The primary purpose of this subsidiary is to purchase, hold, and dispose of troubled assets acquired from the Company’s subsidiary bank.
	The following is a description of the basis of presentation and the significant accounting and reporting policies, which the Company follows in preparing and presenting its consolidated financial statements.

		(b)	Use of estimates
	To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided. Significant items subject to estimates and assumptions include allowance for loan losses, FDIC indemnification asset, fair values of financial instruments, useful life of intangibles and valuation of goodwill, fair value estimates of stock-based compensation, fair value estimates of OREO, and deferred tax assets. Actual results could differ from these estimates.

		(c)	Cash flow reporting
	For purposes of the statement of cash flows, the Company considers cash and due from banks, federal funds sold, money market and non interest bearing deposits in other banks with a purchased maturity of three months or less to be cash equivalents. Net cash flows are reported for customer loan and deposit transactions, interest bearing deposits in other financial institutions, federal funds purchased, repurchase agreements, proceeds from capital offering and other borrowed funds.

		(d)	Interest bearing deposits in other financial institutions
	Interest bearing deposits in other financial institutions mature within one year and are carried at cost and are included in cash and due from banks in the Consolidated Balance Sheets.

		(e)	Trading securities
	The Company engages in trading activities for its own account. Securities that are held principally for resale in the near term are recorded at fair value with changes in fair value included in earnings. Interest is included in net interest income.

		(f)	Investment securities available for sale
	Debt securities not classified as held to maturity or trading are classified as available for sale. Securities available for sale are carried at fair value, with unrealized holding gains and losses reported in other comprehensive income, net of tax.
	Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are amortized on the level-yield method without anticipating prepayments, except for mortgage backed securities where prepayments are anticipated. Gains and losses on sales are recorded on the trade date and determined using the specific identification method.
	Securities are evaluated for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) other-than-temporary impairment related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis.

		(g)	Bond commissions revenue recognition
	Bond sales transactions and related revenue and expenses are recorded on a settlement date basis. The effect on the financial statements of using the settlement date basis rather than the trade date basis is not material.

		(h)	Loans held for sale
	Mortgage loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by outstanding commitments from investors. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. Mortgage loans held for sale are generally sold with servicing rights released. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related loan sold.

		(i)	Loans
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding unpaid principal balance net of purchase premiums and discounts, deferred loan fees and costs, and an allowance for loan losses. Interest income is accrued on the unpaid principal balance. The recorded investment in a loan excludes accrued interest receivable, deferred fees, and deferred costs because they are not considered material.
	A loan is considered a troubled debt restructured loan based on individual facts and circumstances. A modification may include either an increase or reduction in interest rate or deferral of principal payments or both. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings. The Company classifies troubled debt restructured loans as impaired and evaluates the need for an allowance for loan losses on a loan-by-loan basis. An allowance for loan losses is based on either the present value of estimated future cash flows or the estimated fair value of the underlying collateral. Loans retain their interest accrual status at the time of modification.
	Loan origination fees and the incremental direct cost of loan origination, are deferred and recognized in interest income without anticipating prepayments over the contractual life of the loans. If the loan is prepaid, the remaining unamortized fees and costs are charged or credited to interest income. Amortization ceases for nonaccrual loans.
	A loan is moved to nonaccrual status in accordance with the Company’s policy typically after 90 days of non-payment, or less than 90 days of non-payment if management determines that the full timely collection of principal and interest becomes doubtful. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal or interest is considered doubtful. Nonaccrual loans and loans past due 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. Single family home loans, consumer loans and smaller commercial, land, development and construction loans (less than $500) are monitored by payment history, and as such, past due payments is generally the triggering mechanism to determine nonaccrual status. Larger (greater than $500) commercial, land, development and construction loans are monitored on a loan level basis, and therefore in these cases it is more likely that a loan may be placed on nonaccrual status before it becomes 90 days past due.
	All interest accrued but not received for loans placed on nonaccrual, is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Non real estate consumer loans are typically charged off no later than 120 days past due.
	The Company, considering current information and events regarding the borrower’s ability to repay their obligations, considers a loan to be impaired when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. When a loan is considered to be impaired, the amount of the impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the secondary market value of the loan, or the fair value of the collateral for collateral dependent loans. Interest income on impaired loans is recognized in accordance with the Company’s non-accrual policy. Impaired loans are written down to the extent that principal is judged to be uncollectible and, in the case of impaired collateral dependent loans where repayment is expected to be provided solely by the underlying collateral and there is no other available and reliable sources of repayment, are written down to the lower of cost or collateral value less estimated selling costs. Impairment losses are included in the allowance for loan losses. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not separately identified for impairment disclosures.

		(j)	Purchased credit-impaired loans
	As a part of business acquisitions, the Company acquires loans, some of which have shown evidence of credit deterioration since origination. These purchased credit-impaired (“PCI”) loans were determined to be credit impaired based on specific risk characteristics of the loan, including product type, domicile of the borrower, past due status, owner occupancy status, geographic location of the collateral, and loan to value ratios. Purchasers are permitted to aggregate credit impaired loans acquired in the same fiscal quarter into one or more pools, provided that the loans have common risk characteristics. A pool is then accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. For the loan portfolios acquired through failed bank acquisitions, the Company aggregated the commercial, consumer, and residential loans into ten pools of loans with common risk characteristics for each FDIC failed institution acquired. These acquired loans were recorded at the acquisition date fair value, and after acquisition, losses are recognized through the allowance for loan losses. The Company estimates the amount and timing of expected cash flows for each acquired loan pool and the expected cash flows in excess of the amount paid is recorded as interest income over the remaining life of the loan pools.
	On a quarterly basis, the Company updates the amount of loan principal and interest cash flows expected to be collected, incorporating assumptions regarding default rates, loss severities, the amounts and timing of prepayments and other factors that are reflective of current market conditions. Probable decreases in expected loan principal cash flows trigger the recognition of impairment, which is then measured as the present value of the expected principal loss plus any related foregone interest cash flows discounted at the pool’s effective interest rate. Impairments that occur after the acquisition date are recognized through the provision for loan losses. Probable and significant increases in expected principal cash flows would first reverse any previously recorded allowance for loan losses; any remaining increases are recognized prospectively as interest income. The impacts of (i) prepayments, (ii) changes in variable interest rates, and (iii) any other changes in the timing of expected cash flows are recognized prospectively as adjustments to interest income. Disposals of loans, which may include sales of loans, receipt of payments in full by the borrower, or foreclosure, result in removal of the loan from the purchased credit impaired portfolio.

		(k)	Concentration of credit risk
	Most of the Company’s business activity is with customers located within Florida. Therefore, the Company’s exposure to credit risk is significantly affected by changes in the economy and the real estate market within Florida, primarily central and northeastern Florida.

		(l)	Allowance for loan losses
	The allowance for loan losses is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged-off.

	The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers loans that are not individually classified as impaired and is based on historical loss experience adjusted for current factors.
	A loan is impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loans, for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired.
	Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
	If a loan is impaired, a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value of collateral if repayment is expected solely from the collateral. Commercial, commercial real estate, land, acquisition and development, and construction loans over $500 are individually evaluated for impairment. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not separately identified for impairment disclosures. Troubled debt restructurings are separately identified for impairment disclosures and are measured at the present value of estimated future cash flows using the loan’s effective rate at inception. If a troubled debt restructuring is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For troubled debt restructurings that subsequently default, the Company determines the amount of reserve in accordance with the accounting policy for the allowance for loan losses.
	The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company over the most recent two years. During the third quarter of 2011, the Company changed from one quarter lag to current quarter when calculating historical loss rates, because it is more reflective of the most recent allowance for loan loss activities. The portfolio segments identified by the Company are residential loans, commercial real estate loans, construction and land development loans, commercial and industrial and consumer and other. This actual loss experience is supplemented with other economic factors based on the risks present for each portfolio segment. These economic factors include consideration of the following: levels of and trends in delinquencies and impaired loans; levels of and trends in charge-offs and recoveries; trends in volume and terms of loans; effects of any changes in risk selection and underwriting standards; other changes in lending policies, procedures, and practices; experience, ability, and depth of lending management and other relevant staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentrations.

	Prior to March 31, 2013, management evaluated its loan portfolio through six portfolio segments. The six segments were residential real estate, commercial real estate, land/ land development/construction, commercial, consumer/other and loans acquired through the acquisition of Federal Trust Bank (“FTB”) on November 1, 2011. Management evaluated the purchased loans from FTB as a separate segment because the loans were selected performing loans as of the November 1, 2011 purchase date and because management had the option to put back any loan that became 30 days past due or adversely classified for a one year period which expired on November 1, 2012. Management evaluated this sixth loan portfolio segment during the first quarter of 2013 and concluded the loans no longer needed to be analyzed as a separate loan portfolio segment when estimating the allowance for loan losses. The difference between evaluating the loans as a separate portfolio segment versus including the loans in the Company’s historical classifications was not material.
	With the Company no longer evaluating loans acquired from FTB as a separate portfolio segment, the Company segregates and evaluates its loan portfolio through the remaining five portfolio segments: residential real estate, commercial real estate, land/ land development/construction, commercial and consumer/other.
	Residential real estate loans are a mixture of fixed rate and adjustable rate residential mortgage loans, including first mortgages, second mortgages or home equity lines of credit. As a policy, the Company holds adjustable rate loans and sells a portion of its fixed rate loan originations into the secondary market. Changes in interest rates or market conditions may impact a borrower’s ability to meet contractual principal and interest payments. Residential real estate loans are secured by real property.
	Commercial real estate loans include loans secured by office buildings, warehouses, retail stores and other property located in or near our markets. These loans are originated based on the borrower’s ability to service the debt and secondarily based on the fair value of the underlying collateral.
	Land/land development/construction loans include residential and commercial real estate loans and include a mixture of owner occupied and non-owner occupied. The majority of the loans in this category are land related, either undeveloped land, land held for development, residential building lots and commercial building lots. Generally the terms are three to five years, with a potential for renewal at maturity.
	Commercial loans consist of small-to medium-sized businesses including professional associations, medical services, retail trade, transportation, wholesale trade, manufacturing and tourism. Commercial loans are derived from our market areas and underwritten based on the borrower’s ability to service debt from the business’s underlying cash flows. As a general practice, we obtain collateral such as inventory, accounts receivable, equipment or other assets although such loans may be uncollateralized but guaranteed.
	Consumer and other loans include automobiles, boats, mobile homes without land, or uncollateralized but personally guaranteed loans. These loans are originated based primarily on credit scores, debt-to-income ratios and loan-to-value ratios.

	(m)	Transfer of financial assets
Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.

	(n)	Other repossessed real estate owned
Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed. Repossessed real estate is included in other repossessed real estate owned and other repossessed assets other than real estate is included in prepaid expenses and other assets in the Consolidated Balance Sheets.

	(o)	Premises and equipment
Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives of the related assets. Buildings are depreciated over a 39 year period, and furniture, fixtures and equipment are depreciated over their related useful life (3 to 15 years). Leasehold improvements are depreciated over the shorter of their useful lives or the term of the lease. Major renewals and betterments of property are capitalized; maintenance, repairs, and minor renewals and betterments are expensed in the period incurred. Upon retirement or other disposition of the asset, the asset cost and related accumulated depreciation are removed from the accounts, and gains or losses are included in income.

	(p)	Software costs
Costs of software developed for internal use, such as those related to software licenses, programming, testing, configuration, direct materials and integration, are capitalized and included in premises and equipment. Included in the capitalized costs are those costs related to both our personnel and third party consultants involved in the software development and installation. Once placed in service, the capitalized asset is amortized on a straight-line basis over its estimated useful life, generally three to five years. Capitalized costs of software developed for internal use are reviewed periodically for impairment.

	(q)	Federal Home Loan Bank (FHLB) and Federal Reserve Bank (FRB) stock
The Company’s subsidiary bank is a member of the FHLB and FRB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB and FRB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.

	(r)	Bank owned life insurance (BOLI)
The Company, through its subsidiary bank, has purchased life insurance policies on certain key executives. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.

	(s)	Goodwill and other intangible assets
Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009, is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Company has selected November 30 as the date to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on the Company’s balance sheet.
The core deposit intangibles are intangible assets arising from either whole bank acquisitions or branch acquisitions. They are initially measured at fair value and then amortized over a ten-year period on an accelerated basis using the projected decay rates of the underlying core deposits.
The trust intangible represents the value of the Trust business (“Trust”) acquired pursuant to the Company’s January 27, 2012 acquisition of First Guaranty Bank and Trust of Jacksonville (“FGB”) in Jacksonville, Florida. The intangible was initially measured at fair value and then amortized over a ten-year period on an accelerated basis.

	(t)	FDIC Indemnification Asset
The FDIC Indemnification Asset represents the estimated amounts due from the FDIC pursuant to the Loss Share Agreements related to the acquisitions of the three failed banks acquired in 2010 and the two in 2012. At acquisition, the FDIC Indemnification Asset represented the discounted value of the FDIC’s reimbursed portion of the estimated losses the Company expects to realize on the loans and other real estate (“Covered Assets”) acquired as a result of the acquisitions. The range of discount rates used on the FDIC Indemnification Asset was 1.21% to 4.53%. As losses are realized on Covered Assets, the portion that the FDIC pays the Company in cash for principal and up to 90 days of interest reduces the FDIC Indemnification Asset. On a quarterly basis, the Company will evaluate the FDIC Indemnification Asset to determine if the estimated losses on Covered Assets support the amount recorded as the FDIC Indemnification Asset. Income accretion is recognized during the loss share period. If the expectation of future losses decline, the income accretion is reduced prospectively over the lesser of the term of the loss share agreement and the estimated remaining life of the Covered Asset.

	(u)	Loan commitments and related financial instruments
Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.

	(v)	Stock-based compensation
Compensation cost is recognized for stock options and restricted stock awards issued to employees, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period.

	(w)	Income taxes
Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.
A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded.
The Company recognizes interest and/or penalties related to income tax matters in other expenses.

	(x)	Retirement plans
Employee 401(k) plan expense is the amount of matching contributions. Deferred compensation and supplemental retirement plan expense allocates the benefits over years of service.

	(y)	Marketing and advertising costs
Marketing and advertising costs are expensed as incurred.

	(z)	Earnings per common share
Basic earnings per common share is net income divided by the weighted average number of common shares outstanding during the period. All outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable under stock options. Earnings and dividends per share are restated for all stock splits and stock dividends through the date of issuance of the financial statements.

	(aa)	Comprehensive income
Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes unrealized gains and losses on securities available for sale, which are also recognized as separate components of shareholders’ equity.

	(ab)	Loss contingencies
Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there now are such matters that will have a material effect on the financial statements.

	(ac)	Restrictions on cash
Cash on hand or on deposit with the Federal Reserve Bank is generally required to meet regulatory reserve and clearing requirements.

	(ad)	Dividend restriction
Banking regulations require maintaining certain capital levels and may limit the dividends paid by the banks to the holding company or by the holding company to stockholders.

	(ae)	Fair value of financial instruments
Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.

	(af)	Segment reporting
The Company’s correspondent banking and bond sales division represents a distinct reportable segment which differs from the Company’s primary business of commercial and retail banking in central Florida. Accordingly, a reconciliation of reportable segment revenues, expenses and profit to the Company’s consolidated total has been presented in note 26.

	(ag)	Derivatives
The Company enters into interest rate swaps in order to provide commercial loan clients the ability to swap from fixed to variable interest rates. Under these agreements, the Company enters into a fixed-rate loan with a client in addition to a swap agreement. This swap agreement effectively converts the client’s fixed rate loan into a variable rate. The Company then enters into a matching swap agreement with a third party dealer in order to offset its exposure on the customer swap. The Company does not use derivatives for trading purposes. The derivative transactions are considered instruments with no hedging designation, otherwise known as stand-alone derivatives. Changes in the fair value of the derivatives are reported currently in earnings.

	(ah)	Reclassifications
Some items in the prior year financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior years net income or shareholders’ equity.

	(ai)	Effect of new pronouncements
In February 2013, the Financial Accounting Standards Board (FASB) issued updated guidance related to disclosure of reclassification amounts out of other comprehensive income. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. The new requirements will take effect for public companies in fiscal years, and interim periods within those years, beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure surrounding reclassification items out of accumulated other comprehensive income.
In July 2013, the FASB amended existing guidance related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss or a tax credit carryforward exists. These amendments provide that an unrecognized tax benefit, or a portion thereof, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from disallowance of a tax position, or the tax law does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented as a liability. These amendments are effective for interim and annual reporting periods beginning after December 15, 2013. Early adoption and retrospective application is permitted. The Company does not expect the impact of this amendment on the consolidated financial statements to be material.
In July 2013, the FASB amended existing guidance related to the inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a benchmark interest rate for hedge accounting purposes These amendments permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes, in addition to UST and LIBOR. The amendments also remove the restriction on using different benchmark rates for similar hedges. The amendments apply to all entities that elect to apply hedge accounting of the benchmark interest rate. These amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The effect of adopting this standard did not have a material effect on the Company’s operating results or financial condition.

Trading_Securities

Trading Securities	12 Months Ended
Trading Securities	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Trading Securities	'
	-2	Trading Securities
	During the third quarter of 2009, the Company initiated a trading securities portfolio at its lead subsidiary bank. Realized and unrealized gains and losses are included in trading securities revenue, a component of non interest income. Securities purchased for this portfolio have primarily been municipal securities. A list of the activity in this portfolio for 2013 and 2012 is summarized below.


			2013			2012
	Beginning balance		$	5,048		$	—
	Purchases			198,186			367,105
	Proceeds from sales			(203,489	)		(362,747	)
	Net realized gain on sales			255			715
	Mark to market adjustment			—			(25	)

	Ending balance		$	—		$	5,048

Investment_Securities_Availabl

Investment Securities Available for Sale	12 Months Ended
Investment Securities Available for Sale	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Investment Securities Available for Sale	'
	-3	Investment Securities Available for Sale
	All of the mortgage backed securities (“MBS”) listed below are residential FNMA, FHLMC, and GNMA MBSs. 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:


			December 31, 2013
						Gross			Gross
			Amortized			Unrealized			Unrealized			Fair
			Cost			Gains			Losses			Value
	Obligations of U.S. government agencies and government sponsored enterprises		$	4		$	—		$	—		$	4
	Mortgage backed securities			424,654			4,623			12,396			416,881
	Municipal securities			39,728			921			448			40,201

	Total		$	464,386		$	5,544		$	12,844		$	457,086

			December 31, 2012
						Gross			Gross
			Amortized			Unrealized			Unrealized			Fair
			Cost			Gains			Losses			Value
	Obligations of U.S. government agencies and government sponsored enterprises		$	7,465		$	81		$	—		$	7,546
	Mortgage backed securities			364,014			9,247			71			373,190
	Municipal securities			42,570			2,504			52			45,022

	Total		$	414,049		$	11,832		$	123		$	425,758

	Sales of available for sale securities were as follows:


			2013			2012			2011
	Proceeds		$	69,495		$	168,809		$	173,337
	Gross gains		$	1,060		$	2,706		$	3,595
	Gross losses		$	—		$	283		$	131
	The tax provisions related to these net realized gains were $409, $912 and $1,303, respectively.
	The fair value and amortized cost of available for sale securities at year end 2013 by contractual maturity were as follows. Mortgage-backed securities are not due at a single maturity date and are shown separately.


			Fair			Amortized
			Value			Cost
	Investment securities available for sale
	Due in one year or less		$	—		$	—
	Due after one year through five years			1,922			1,799
	Due after five years through ten years			12,491			12,290
	Due after ten years through thirty years			25,792			25,643
	Mortgage backed securities			416,881			424,654

			$	457,086		$	464,386

	Securities pledged at December 31, 2013 and 2012 had a carrying amount (estimated fair value) of $108,528 and $108,737, respectively. These securities were pledged primarily to secure public deposits and repurchase agreements.
	At year-end 2013 and 2012, there were no holdings of securities of any one issuer, other than the U.S. Government and its agencies, in an amount greater than 10% of stockholders’ equity.
	The following tables show the Company’s investments’ gross unrealized losses and fair value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position, at December 31, 2013 and 2012.


			December 31, 2013
			Less than 12 months						12 months or more						Total
						Unrealized						Unrealized						Unrealized
			Fair Value			Losses			Fair Value			Losses			Fair Value			Losses
	Obligations of U.S. government agencies and government sponsored enterprises		$	—		$	—		$	—		$	—		$	—		$	—
	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 securities		$	247,244		$	10,554		$	19,803		$	2,290		$	267,047		$	12,844

			December 31, 2012
			Less than 12 months						12 months or more						Total
		Fair			Unrealized						Unrealized			Fair			Unrealized
		Value			Losses			Fair Value			Losses			Value			Losses
Obligations of U.S. government agencies and government sponsored enterprises		$	—		$	—		$	—		$	—		$	—		$	—
Mortgage backed securities			30,840			71			—			—			30,840			71
Municipal securities			2,180			52			—			—			2,180			52

Total temporarily impaired securities		$	33,020		$	123		$	—		$	—		$	33,020		$	123

Mortgage-backed securities: At December 31, 2013, 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 December 31, 2013.
Municipal securities: 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.

Loans

Loans	12 Months Ended
Loans	Dec. 31, 2013
Receivables [Abstract]	'
Loans	'
	-4	Loans
	Major categories of loans included in the loan portfolio as of December 31, 2013 and 2012 are:


			December 31,
			2013				2012
	Loans not covered by FDIC loss share agreements:
	Real estate:
	Residential		$	458,331			$	428,554
	Commercial			528,710				480,494
	Land, development, construction			62,503				55,474

	Total real estate			1,049,544				964,522
	Commercial			143,263				124,225
	Consumer and other loans			50,695				51,279

				1,243,502				1,140,026
	Deferred loan origination fees, net of costs			404				(458	)
	Allowance for loan losses for non covered loans			(19,694	)			(24,033	)

	Net loans not covered by FDIC loss share agreements			1,224,212				1,115,535
	Loans covered by FDIC loss share agreements:
	Real estate:
	Residential			120,030				142,480
	Commercial			100,012				134,413
	Land, development, construction			6,381				13,259

	Total real estate			226,423				290,152
	Commercial			3,850				6,143

				230,273				296,295
	Allowance for loan losses for covered loans			(760	)			(2,649	)

	Net loans covered by FDIC loss share agreements			229,513				293,646

	Total net loans		$	1,453,725			$	1,409,181


	Changes in the allowance for loan losses by portfolio segment for the years ended December 31, 2013, 2012 and 2011, are below. The FTB loan segment is not presented separately due to immateriality. The segment is included in the residential real estate segment in the 2012 disclosures presented below and is no longer a separate segment in 2013.


			Real Estate Loans
			Residential				Commercial				Land,develop,				Comm. &				Consumer &				Total
			Residential				Commercial				construction				Industrial				Other				Total
	Loans not covered by FDIC loss share agreements:
	Twelve months ended December 31, 2013
	Beginning of the period		$	6,831			$	8,272			$	6,211			$	1,745			$	974			$	24,033
	Charge-offs			(3,701	)			(1,144	)			(310	)			(120	)			(903	)			(6,178	)
	Recoveries			432				417				193				51				181				1,274
	Provisions			5,223				(1,104	)			(3,025	)			(1,166	)			637				565

	Balance at December 31, 2013		$	8,785			$	6,441			$	3,069			$	510			$	889			$	19,694

	Twelve months ended December 31, 2012
	Beginning of the period		$	6,700			$	8,825			$	9,098			$	1,984			$	978			$	27,585
	Charge-offs			(3,968	)			(2,862	)			(4,646	)			(231	)			(807	)			(12,514	)
	Recoveries			378				871				604				22				157				2,032
	Provisions			3,721				1,438				1,155				(30	)			646				6,930

	Balance at December 31, 2012		$	6,831			$	8,272			$	6,211			$	1,745			$	974			$	24,033

	Twelve months ended December 31, 2011
	Beginning of the period		$	7,704			$	8,587			$	6,893			$	2,182			$	901			$	26,267
Charge-offs			(9,306	)			(11,179	)			(7,717	)			(1,971	)			(1,091	)			(31,264	)
Charge-offs – loan sales			(3,019	)			(11,153	)			(456	)			(220	)			—				(14,848	)
Recoveries			542				665				251				82				258				1,798
Provisions			10,779				21,905				10,127				1,911				910				45,632

Balance at December 31, 2011		$	6,700			$	8,825			$	9,098			$	1,984			$	978			$	27,585

Loans covered by FDIC loss share agreements:
Twelve months ended December 31, 2013
Beginning of the period		$	—			$	2,335			$	—			$	314			$	—			$	2,649
Charge-offs			—				(1,248	)			—				—				—				(1,248	)
Recoveries			—				—				—				—				—				—
Provisions			—				(949	)			89				219				—				(641	)

Balance at December 31, 2013		$	—			$	138			$	89			$	533			$	—			$	760

Twelve months ended December 31, 2012
Beginning of the period		$	82			$	223			$	40			$	14			$	—			$	359
Charge-offs			—				—				—				—				—				0
Recoveries			—				—				—				—				—				0
Provisions			(82	)			2,112				(40	)			300				—				2,290

Balance at December 31, 2012		$	—			$	2,335			$	—			$	314			$	—			$	2,649

Twelve months ended December 31, 2011
Beginning of the period		$	—			$	—			$	—			$	—			$	—			$	—
Charge-offs			—				—				(293	)			—				—				(293	)
Recoveries			—				—				293				—				—				293
Provisions			82				223				40				14				—				359

Balance at December 31, 2011		$	82			$	223			$	40			$	14			$	—			$	359

The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2013 and 2012. Accrued interest receivable and unearned fees/costs are not included in the recorded investment because they are not material.


		Real Estate Loans
As of December 31, 2013		Residential				Commercial				Land,				Comm. &				Consumer				Total
										develop,				industrial				& other
										constr
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
Acquired with deteriorated credit quality			—				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
Acquired with deteriorated credit quality			120,030				100,012				6,381				3,850				1,148				231,421

Total ending loans balance		$	578,361			$	628,722			$	68,884			$	147,113			$	50,695			$	1,473,775


		Real Estate Loans
As of December 31, 2012		Residential				Commercial				Land,				Comm. &				Consumer				Total
										develop,				industrial				& other
										constr
Allowance for loan losses:
Ending allowance balance attributable to loans:
Individually evaluated for impairment		$	610			$	277			$	107			$	1			$	27			$	1,022
Collectively evaluated for impairment			6,221				7,995				6,104				1,744				947				23,011
Acquired with deteriorated credit quality			—				2,335				—				314				—				2,649

Total ending allowance balance		$	6,831			$	10,607			$	6,211			$	2,059			$	974			$	26,682

Loans:
Individually evaluated for impairment			9,936				32,860				1,520				3,470				393				48,179
Collectively evaluated for impairment			418,618				447,634				53,954				120,755				48,154				1,089,115
Acquired with deteriorated credit quality			142,480				134,413				13,259				6,143				2,732				299,027

Total ending loans balance:		$	571,034			$	614,907			$	68,733			$	130,368			$	51,279			$	1,436,321


The following is a summary of information regarding impaired loans at December 31, 2013 and 2012:


Individually impaired loans were as follows:		December 31,
		2013				2012
Impaired loans with no allocated allowance for loan losses		$	14,656			$	37,435
Impaired loans with allocated allowance for loan losses			9,454				10,744

Total impaired loans		$	24,110			$	48,179

Amount of the allowance for loan losses allocated to impaired loans		$	1,811			$	1,022

Performing Trouble Debt Restructurings (TDRs)		$	10,763				8,841
Nonperforming TDRs, included in nonperforming loans			4,684				5,819

Total TDRs (TDRs are required to be included in impaired loans)		$	15,447			$	14,660
Impaired loans that are not TDRs			8,663				33,519

Total impaired loans		$	24,110			$	48,179

Troubled Debt Restructurings:
In certain circumstances it may be beneficial to modify or restructure the terms of a loan (i.e. troubled debt restructure or “TDR”) 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 Company modifies the terms of a loan, it usually either reduces the monthly payment and/or interest rate for generally twelve to twenty-four months. The Company has not forgiven any material principal amounts on any loan modifications to date. The Company has $15,447 of TDRs. Of this amount $10,763 are performing pursuant to their modified terms, and $4,684 are not performing and have been placed on non-accrual status and included in our nonperforming loans (“NPLs”).


		December 31,
Troubled debt restructured loans (“TDRs”):		2013				2012
Performing TDRs		$	10,763			$	8,841
Non performing TDRs			4,684				5,819

Total TDRs		$	15,447			$	14,660

TDRs as of December 31, 2013 and 2012 quantified by loan type classified separately as accrual (performing loans) and non-accrual (nonperforming loans) are presented in the table below.


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


As of December 31, 2012		Accruing				Non-Accrual				Total
Real estate loans:
Residential		$	6,446			$	1,778			$	8,224
Commercial			1,589				3,701				5,290
Land, development, construction			202				231				433

Total real estate loans			8,237				5,710				13,947
Commercial			315				5				320
Consumer and other			289				104				393

Total TDRs		$	8,841			$	5,819			$	14,660

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 $890 and $1,163 and partial charge offs of $449 and $854 on the TDR loans described above during the periods ending December 31, 2013 and 2012, respectively.
Loans are modified to minimize loan losses when management believes the modification will improve the borrower’s financial condition and ability to repay the loan. The Company typically does not forgive principal. The Company generally either reduces interest rates or decreases monthly payments for a temporary period of time and those reductions of cash flows are capitalized into the loan balance. The Company 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 management tries to accommodate the borrower and minimize the Company’s potential losses. Approximately 70% of the Company’s TDRs are current pursuant to their modified terms, and $4,684, or approximately 30% of the Company’s 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 as TDRs for which there was a payment default within twelve months following the modification during the years ending December 31, 2013 and 2012.


		Year ending								Year ending
		December 31, 2013								December 31, 2012
		Number				Recorded				Number				Recorded
		of loans				investment				of loans				investment
Residential			3			$	553				10			$	758
Commercial real estate			6				2,244				4				2,567
Land, development, construction			—				—				4				156
Commercial			2				34				—				0
Consumer and other			1				17				1				45

Total			12			$	2,848				19			$	3,526

The Company recorded $574 and $815 in provision for loan loss expense and $197 and $657 in partial charge offs on TDR loans that subsequently defaulted as described above during the years ending December 31, 2013 and 2012, respectively.
The Company has allocated $703 and $851 of specific reserves to customers whose loan terms have been modified in troubled debt restructurings as of December 31, 2013 and 2012. The Company has not committed to lend additional amounts to customers with outstanding loans that are classified as troubled debt restructurings.

The following table presents loans individually evaluated for impairment by class of loans as of December 31, 2013 and 2012 excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements, which are evaluated on a pool basis. The recorded investment is less than the unpaid principal balance primarily due to partial charge-offs.


As of December 31, 2013		Unpaid				Recorded				Allowance for
		principal				investment				loan losses
		balance								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			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			102				56				2
Consumer, other			340				327				21

Total		$	26,882			$	24,110			$	1,811


As of December 31, 2012		Unpaid				Recorded				Allowance for
		principal				investment				loan losses
		balance								allocated
With no related allowance recorded:
Residential real estate		$	1,712			$	1,712			$	—
Commercial real estate			33,789				31,171				—
Land, development, construction			2,042				1,087				—
Commercial			3,556				3,465				—
Consumer, other			—				—				—
With an allowance recorded:
Residential real estate			8,624				8,224				610
Commercial real estate			1,742				1,689				277
Land, development, construction			664				433				107
Commercial			5				5				1
Consumer, other			395				393				27

Total		$	52,529			$	48,179			$	1,022



December 31, 2013		Average of				Interest income				Cash basis
		impaired loans				recognized during				interest income
		during the period				impairment				recognized
Real estate loans:
Residential		$	8,968			$	290			$	—
Commercial			26,060				870				—
Land, development, construction			1,405				17				—

Total real estate loans			36,433				1,177				—
Commercial loans			1,878				35				—
Consumer and other loans			363				11				—

Total		$	38,674			$	1,223			$	—


December 31, 2012		Average of				Interest income				Cash basis
		impaired loans				recognized during				interest income
		during the period				impairment				recognized
Real estate loans:
Residential		$	10,136			$	306			$	—
Commercial			29,877				1,215				—
Land, development, construction			3,888				23				—

Total real estate loans			43,901				1,544				—
Commercial loans			4,175				110				—
Consumer and other loans			439				17				—

Total		$	48,515			$	1,671			$	—


December 31, 2011		Average of				Interest income				Cash basis
		impaired loans				recognized during				interest income
		during the period				impairment				recognized
Real estate loans:
Residential		$	13,035			$	261			$	—
Commercial			40,403				855				—
Land, development, construction			14,348				118				—

Total real estate loans			67,786				1,234				—
Commercial loans			6,144				262				—
Consumer and other loans			572				21				—

Total		$	74,502			$	1,517			$	—


The following tables present the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans as of December 31, 2013 and 2012 excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements:


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				30

Total		$	27,077			$	30


As of December 31, 2012		Nonaccrual				Loans past due
						over 90 days
						still accruing
Residential real estate		$	9,993			$	—
Commercial real estate			11,459				—
Land, development, construction			2,032				—
Commercial			1,650				—
Consumer, other			314				293

Total		$	25,448			$	293

The following tables present the aging of the recorded investment in past due loans as of December 31, 2013 and 2012, excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements:


						Accruing Loans
As of December 31, 2013		Total				30 - 59				60 - 89				Greater				Total Past				Loans Not				Nonaccrual
						days past				days past				than 90				Due				Past Due				Loans
						due				due				days past
														due
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			50,695				303				240				30				573				49,813				309

Total		$	1,243,502			$	6,151			$	4,365			$	30			$	10,546			$	1,205,879			$	27,077



						Accruing Loans
As of December 31, 2012		Total				30 - 59				60 - 89				Greater				Total Past				Loans Not				Nonaccrual
						days past				days past				than 90				Due				Past Due				Loans
						due				due				days past
														due
Residential Real Estate		$	428,554			$	1,632			$	677			$	—			$	2,309			$	416,252			$	9,993
Commercial Real Estate			480,494				1,663				1,147				—				2,810				466,225				11,459
Land/Dev/Construction			55,474				115				624				—				739				52,703				2,032
Commercial			124,225				203				416				—				619				121,956				1,650
Consumer			51,279				456				489				293				1,238				49,727				314

Total		$	1,140,026			$	4,069			$	3,353			$	293			$	7,715			$	1,106,863			$	25,448


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 and non-homogeneous loans, such as commercial and commercial real estate 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 December 31, 2013 and 2012, and based on the most recent analysis performed, the risk category of loans by class of loans, excluding loans with evidence of deterioration of credit quality purchased from the FDIC and covered by FDIC loss share agreements, is as follows:


		As of December 31, 2013
Loan Category		Pass				Special				Substandard				Doubtful
Loan Category		Pass				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			49,530				562				603				—

		$	1,112,028			$	67,483			$	63,991			$	—


		As of December 31, 2012
Loan Category		Pass				Special				Substandard				Doubtful
Loan Category		Pass				Mention				Substandard				Doubtful
Residential Real Estate		$	400,244			$	4,797			$	23,513			$	—
Commercial Real Estate			394,238				44,933				41,323				—
Land/Dev/Construction			39,650				11,994				3,830				—
Commercial			114,067				3,978				6,180				—
Consumer			49,894				613				772				—

		$	998,093			$	66,315			$	75,618			$	—


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 loans with evidence of deterioration of credit quality purchased from the FDIC and covered by FDIC loss share agreements, based on payment activity as of December 31, 2013 and 2012:


As of December 31, 2013		Residential				Consumer
Performing		$	448,169			$	50,356
Nonperforming			10,162				339

Total		$	458,331			$	50,695


As of December 31, 2012		Residential				Consumer
Performing		$	418,561			$	50,672
Nonperforming			9,993				607

Total		$	428,554			$	51,279

Purchased Loans:
Income recognized on loans purchased from the FDIC is recognized 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 December 31, 2013 and 2012. Contractually required principal and interest payments have been adjusted for estimated prepayments.


		December 31,
		2013				2012				2011
Contractually required principal and interest		$	389,537			$	534,989			$	291,531
Non-accretable difference			(55,304	)			(142,855	)			(51,536	)

Cash flows expected to be collected			334,233				392,134				239,995
Accretable yield			(102,812	)			(93,107	)			(74,552	)

Carrying value of acquired loans		$	231,421			$	299,027			$	165,443
Allowance for loan losses			(760	)			(2,649	)			(385	)

Carrying value less allowance for loan losses		$	230,661			$	296,378			$	165,058

$(641), $2,290 and $385 of the allowance for loan losses was recognized in the loan loss provision during 2013, 2012 and 2011, respectively. There were reversals in the loan loss allowance of $0, $0 and $293 for recoveries in 2013, 2012 and 2011, respectively. The Company adjusted its estimates of future expected losses, cash flows and renewal assumptions during the current year. These adjustments resulted in an increase in expected cash flows and accretable yield, and a decrease in the non-accretable difference. The Company reclassified approximately $41,454 from non-accretable difference to accretable yield during the twelve month period ending December 31, 2013 to reflect the adjusted estimates of future expected cash flows.

The Company recognized approximately $32,725 of accretion income during the twelve month period ending December 31, 2013. 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 period ending December 31, 2013.


		Balance at				income				all other				Balance at
		December 31, 2012				accretion				adjustments				December 31, 2013
Contractually required principal and interest		$	534,989			$	—			$	(145,452	)		$	389,537
Non-accretable difference			(142,855	)			—				87,551				(55,304	)

Cash flows expected to be collected			392,134				—				(57,901	)			334,233
Accretable yield			(93,107	)			32,725				(42,430	)			(102,812	)

Carry value of acquired loans		$	299,027			$	32,725			$	(100,331	)		$	231,421

FDIC_Indemnification_Asset

FDIC Indemnification Asset	12 Months Ended
FDIC Indemnification Asset	Dec. 31, 2013
Text Block [Abstract]	'
FDIC Indemnification Asset	'
	-5	FDIC indemnification asset
	The activity in the FDIC loss share indemnification asset which resulted from the July 16, 2010 acquisition of Olde Cypress Community Bank, the August 20, 2010 acquisitions of the Community National Bank of Bartow and Independent National Bank in Ocala, the January 20, 2012 acquisition of Central Florida State Bank and the January 27, 2012 acquisition of First Guaranty Bank & Trust loss share agreements is as follows:


			2013			2012
	Beginning of the year		$	119,289		$	50,642
	Effect of acquisition			—			85,088
	Discount accretion/(amortization)			(13,807	)		(3,096	)
	Indemnification revenue			6,055			4,185
	Indemnification of foreclosure expense			4,413			2,425
	Proceeds from FDIC			(42,004	)		(21,787	)
	Impairment of loan pool			(513	)		1,832

	End of the year		$	73,433		$	119,289

	Impairment of loan pools
	Loan pools covered by FDIC loss share agreements had a net reversal of impairments of $641 which was a reduction in expense included in our loan loss provision expense. The 80% FDIC reimbursable amount of this reversal of impairments ($513) was included as a reduction in the Company’s non interest income and as a decrease in the Company’s FDIC indemnification asset.
	Indemnification revenue
	Indemnification revenue represents approximately 80% of the cost incurred pursuant to the repossession process and losses incurred on the sale of OREO, or writedown of OREO values to current fair value, and are included in non-interest income. These costs are reimbursable from the FDIC. Losses on the sale of OREO, or writedown of OREO to current fair value are included in non-interest expense.
	Discount accretion
	If expected cash flows from loan pools are greater than previously expected, the accretable yield increases and is accreted into interest income over the remaining lives of the related loan pools. The increase in future accretable income may result in less reimbursement from the FDIC (i.e. if the expected losses decrease, then the expected reimbursements from the FDIC decrease). The expected decrease in FDIC reimbursements is amortized over the lesser of the term of the indemnification agreement and the remaining life of the indemnification asset. Discount accretion also includes the increase in present value of the FDIC indemnification asset due to the passage of time.

	Indemnification of foreclosure expense
	Indemnification of foreclosure expense represents approximately 80% of the 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.

Other_Real_Estate_Owned

Other Real Estate Owned	12 Months Ended
Other Real Estate Owned	Dec. 31, 2013
Real Estate [Abstract]	'
Other Real Estate Owned	'
	-6	Other real estate owned
	Other real estate owned means real estate acquired through or instead of loan foreclosure. Activity in the valuation allowance was as follows:


			2013			2012			2011
	Beginning of year		$	5,407		$	4,680		$	2,650
	Valuation write down of repossessed real estate			6,012			4,258			6,751
	Sales and/or dispositions			(5,532	)		(3,531	)		(4,721	)

	End of year		$	5,887		$	5,407		$	4,680

	Expenses related to foreclosed real estate include:


			2013			2012			2011
	Loss on sale of repossessed real estate		$	3,122		$	1,185		$	545
	Valuation write down of repossessed real estate			6,012			4,258			6,751
	Operating expenses, net of rental income			3,191			4,008			4,268

	Total		$	12,325		$	9,451		$	11,564

Fair_value

Fair value	12 Months Ended
Fair value	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair value	'
	-7	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 an 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 December 31, 2013 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 had not traded as of December 31, 2012, the fair value was determined by broker price indications of similar or same securities (Level 2 inputs). Securities purchases for this portfolio are municipal securities.
	The mortgage backed securities held by the Company were issued by U. S. government sponsored entities and agencies. Assets and liabilities measured at fair value on a recurring basis are summarized below.
	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 less estimated costs of sale. 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 December 31, 2013, the range of capitalization rates utilized to determine the fair value of the underlying collateral ranged from 8% to 11%. Adjustments to comparable sales 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.
	The fair value of derivatives is based on valuation models using observable market data as of the measurement date (Level 2).


						Fair value measurements using
			Carrying			Quoted prices in			Significant			Significant
			value			active markets for			other			unobservable
						identical assets			observable			inputs
						(Level 1)			inputs			(Level 3)
									(Level 2)
	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			—
	at December 31, 2012
	Assets:
	Trading securities		$	5,048			—		$	5,048			—
	Available for sale securities
	U.S. government sponsored entities and agencies			7,546			—			7,546			—
	Mortgage backed securities			373,190			—			373,190			—
	Municipal securities			45,022			—			45,022			—
	Interest rate swap derivatives			1,131			—			1,131			—
	Liabilities:
	Interest rate swap derivatives			2,014			—			2,014			—
	Assets and liabilities measured at fair value on a non-recurring basis are summarized below.


						Fair value measurements using
			Carrying			Quoted prices in			Significant			Significant
			value			active markets for			other			unobservable
						identical assets			observable			inputs
						(Level 1)			inputs			(Level 3)
									(Level 2)
	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 owned real estate held for sale			1,582			—			—			1,582
	at December 31, 2012
	Assets:
	Impaired loans
Residential real estate		$	837			—			—		$	837
Commercial real estate			8,379			—			—			8,379
Land, land development and construction			1,103			—			—			1,103
Commercial			905			—			—			905
Consumer			84			—			—			84
Other real estate owned
Residential real estate		$	582			—			—		$	582
Commercial real estate			5,933			—			—			5,933
Land, land development and construction			4,445			—			—			4,445
Bank owned real estate held for sale			2,482			—			—			2,482
Impaired loans with specific valuation allowances had a recorded investment of $13,528 with a valuation allowance of $1,644 at December 31, 2013, and a recorded investment of $11,678, with a valuation allowance of $370, at December 31, 2012. The Company recorded a provision for loan loss expense of $1,895 and $2,501 on these loans during the years ending 2013 and 2012, respectively.
Other real estate owned had a decline in fair value of $6,012 and $4,258 during the twelve month periods ending December 31, 2013 and 2012, respectively. Changes in fair value were recorded directly as an adjustment to current earnings through non interest expense.
Bank owned real estate held for sale represents three branch office buildings which the Company has closed and transferred customer accounts to the nearest existing branch. The real estate was transferred out of the Bank Premises and Equipment category into bank owned property held for sale and included in Prepaid Expenses and Other Assets category in the Company’s Consolidated Balance Sheet during 2012. The real estate was transferred at the lower of amortized cost or fair value less estimated costs to sell. Total impairment charge recognized during the year ending December 31, 2012 was $614, and was included in Other Expenses in the Company’s Consolidated Statements of Earnings and Comprehensive Income. During the current year, one of the properties was sold. The net proceeds from the sale was $931 resulting in a gain on the sale of $31, which was included in other non interest income in the Company’s Condensed Consolidated Statements of Earnings and Comprehensive Income.
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.
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: At December 31, 2013, the fair value of fixed rate loans is based on discounted cash flows applied to the estimated life of the loans and is classified as Level 3. For variable rate loans that reprice frequently, the carrying amount is the estimated fair value resulting in a Level 3 classification. At December 31, 2012, the fair value of loans was estimated by a third party specialist in connection with the Company’s goodwill impairment analysis resulting in a Level 3 classification. Impaired loans are valued at the lower of cost or fair value 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 (note payable), 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 December 31, 2013		Carrying amount			Level 1			Level 2			Level 3			Total
Financial assets:
Cash and cash equivalents		$	174,889		$	174,889		$	—		$	—		$	174,889
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			73,433			—			—			—			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 (correspondent bank deposits)			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


					Fair value measurements
at December 31, 2012		Carrying amount			Level 1			Level 2			Level 3			Total
Financial assets:
Cash and cash equivalents		$	136,748		$	136,748		$	—		$	—		$	136,748
Trading securities			5,048			—			5,048			—			5,048
Investment securities available for sale			425,758			—			425,758			—			425,758
FHLB and FRB stock			9,749			—			—			—			n/a
Loans held for sale			2,709			—			2,709			—			2,709
Loans, less allowance for loan losses of $26,682			1,409,181			—			—			1,324,630			1,324,630
FDIC indemnification asset			119,289			—			—			—			n/a
Interest rate swap derivatives			1,131			—			1,131			—			1,131
Accrued interest receivable			6,100			—			—			6,100			6,100
Financial liabilities:
Deposits- without stated maturities		$	1,521,928		$	1,521,928		$	—		$	—		$	1,521,928
Deposits- with stated maturities			475,304			—			483,220			—			483,220
Securities sold under agreement to repurchase			18,792			—			18,792			—			18,792
Federal funds purchased (correspondent bank deposits)			38,932			—			38,932			—			38,932
Corporate debentures			16,970			—			—			8,477			8,477
Interest rate swap derivatives			2,014			—			2,014			—			2,014
Accrued interest payable			579			—			579			—			579

Bank_Premises_and_Equipment

Bank Premises and Equipment	12 Months Ended
Bank Premises and Equipment	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Bank Premises and Equipment	'
	-8	Bank Premises and Equipment
	A summary of bank premises and equipment as of December 31, 2013 and 2012 is as follows:


			December 31,
			2013		2012
	Land		$	32,591	$	32,642
	Land improvements			864		823
	Buildings			56,651		55,065
	Leasehold improvements			2,450		2,867
	Furniture, fixtures and equipment			26,749		26,278
	Construction in progress			5,828		5,832

				125,133		123,507
	Less: Accumulated depreciation			28,514		25,553

			$	96,619	$	97,954

	The Company leases land and certain facilities under noncancellable operating leases. The following is a schedule of future minimum annual rentals under the noncancellable operating leases:


	Year ending December 31,
	2014		$	1,586
	2015			926
	2016			746
	2017			739
	2018			716
	Thereafter			1,731

			$	6,444

	Rent expense, net of rental income, for the years ended December 31, 2013, 2012 and 2011, was $1,099, $1,455 and $1,212, respectively, and is included in occupancy expense in the accompanying Consolidated Statements of Operations. Rental income for the years ended December 31, 2013, 2012, and 2011, was $540, $507, and $487, respectively, and is included in occupancy expense.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets	'
	-9	Goodwill and Intangible Assets
	Goodwill was a result of whole bank acquisitions, all within the Company’s commercial and retail banking segment. The change in balance for goodwill during the years 2013, 2012 and 2011 is as follows:


			2013			2012			2011
	Beginning of year		$	44,924		$	38,035		$	38,035
	Acquired goodwill			—			6,889			—
	Impairment			—			—			—

	End of year		$	44,924		$	44,924		$	38,035

	The Company performed a step 1 annual impairment analysis of the goodwill recorded at the commercial and retail banking (“Bank”) reporting unit as of November 30, 2013. Step 1 includes the determination of the carrying value of the reporting unit, including the existing goodwill and intangible assets, and estimating the fair value of the reporting unit. The carrying amount of the reporting unit did not exceed its fair value resulting in no impairment.

	Acquired intangible assets consists of core deposit intangibles (“CDI”) and Trust intangible (“Trust”) which are intangible assets arising from either whole bank or branch acquisitions. They are initially measured at fair value and then amortized over a ten-year period on an accelerated basis using the projected decay rates of the underlying core deposits in the case of CDI and an accelerated method in the case of the Trust intangible. The change in balance for CDI and the Trust during the years 2013, 2012 and 2011 is as follows:


			2013			2012			2011
	Beginning of year		$	7,307		$	5,203		$	3,921
	Acquired CDI			—			1,896			2,086
	Acquired Trust			—			1,580			—
	Amortization expense			(1,191	)		(1,372	)		(804	)
	Impairment expense			—			—			—

	End of year		$	6,116		$	7,307		$	5,203

	Acquired intangible assets were as follows for years ended December 31, 2013 and 2012:


			December 31, 2013						December 31, 2012
			Gross						Gross
			Carrying			Accumulated			Carrying			Accumulated
			Amount			Amortization			Amount			Amortization
	Amortized intangible assets:
	Core deposit intangibles		$	11,607		$	6,649		$	11,607		$	5,663
	Trust intangible			1,580			422			1,580			217

	Total acquired intangibles		$	13,187		$	7,071		$	13,187		$	5,880

	Estimated amortization expense for each of the next five years:


	2014		$	1,061
	2015			977
	2016			950
	2017			754
	2018			700

Deposits

Deposits	12 Months Ended
Deposits	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Deposits	'
	-10	Deposits
	A detail of deposits at December 31, 2013 and 2012 is as follows:


			December 31,
					Weighted					Weighted
					Average					Average
					Interest					Interest
			2013		Rate			2012		Rate
	Non-interest bearing deposits		$	644,915		—	%	$	519,510		—	%
	Interest bearing deposits:
	Interest bearing demand deposits			483,842		0.1	%		452,961		0.1	%
	Savings deposits			232,942		0.1	%		238,216		0.1	%
	Money market accounts			309,657		0.2	%		311,241		0.1	%
	Time deposits less than $100,000			181,635		0.8	%		229,598		1.3	%
	Time deposits of $100,000 or greater			203,240		1.2	%		245,706		1.5	%

			$	2,056,231		0.2	%	$	1,997,232		0.4	%

	The following table presents the amount of certificate accounts at December 31, 2013, maturing during the periods reflected below:


	Year		Amount
	2014		$	236,511
	2015			107,073
	2016			20,422
	2017			9,209
	2018			11,660
	Thereafter			—

	Total		$	384,875

Securities_Sold_Under_Agreemen

Securities Sold Under Agreements to Repurchase	12 Months Ended
Securities Sold Under Agreements to Repurchase	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Securities Sold Under Agreements to Repurchase	'
	-11	Securities Sold Under Agreements to Repurchase
	The Company’s subsidiary bank enters into borrowing arrangements with their retail business customers by agreements to repurchase (“repurchase agreements”) under which the bank pledges investment securities owned and under its control as collateral against the one-day borrowing arrangement.
	At December 31, 2013 and 2012, the Company had $20,457 and $18,792 in repurchase agreements. Repurchase agreements are secured by U.S. treasury securities and obligations of U.S. government agencies and government sponsored enterprises with fair values of $37,845 and $41,142 at December 31, 2013 and 2012, respectively.
	Information concerning repurchase agreements is summarized as follows:


			2013			2012			2011
	Average daily balance during the year		$	21,693		$	21,388		$	15,949
	Average interest rate during the year			0.36	%		0.4	%		0.53	%
	Maximum month-end balance during the year		$	24,483		$	24,989		$	18,652
	Weighted average interest rate at year end			0.4	%		0.4	%		0.47	%

Federal_Funds_Purchased

Federal Funds Purchased	12 Months Ended
Federal Funds Purchased	Dec. 31, 2013
Text Block [Abstract]	'
Federal Funds Purchased	'
	-12	Federal Funds Purchased
	Federal funds purchased, as listed below, are overnight deposits from correspondent banks. Information concerning these deposits is summarized as follows:


			2013			2012			2011
	Average daily balance during the year		$	37,958		$	53,803		$	70,940
	Average interest rate during the period			0.05	%		0.05	%		0.07	%
	Maximum month-end balance during the year		$	53,274		$	82,473		$	92,111
	Weighted average interest rate at year end			0.05	%		0.05	%		0.05	%

Federal_Home_Loan_Bank_Advance

Federal Home Loan Bank Advances and Other Borrowed Funds	12 Months Ended
	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Federal Home Loan Bank Advances and Other Borrowed Funds	'
	-13	Federal Home Loan Bank advances and other borrowed funds
	From time to time, the Company borrows either through Federal Home Loan Bank advances or Federal Funds Purchased, other than correspondent bank deposits listed in note 12 above. The Company had no advances from the Federal Home Loan Bank during the periods ending December 31, 2013 and 2012.
	Advances are collateralized by residential and commercial loans under a blanket lien arrangement and based on this collateral, and the Company’s holdings of FHLB stock, the Company is eligible to borrow up to $137,022 at year end 2013.

Note_Payable

Note Payable	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Note Payable	'
	-14	Note Payable
	On January 25, 2012, the Company borrowed $10,000 on a short term basis at the holding company level to help facilitate the acquisition from the Federal Deposit Insurance Corporation (“FDIC”) of Central Florida State Bank (“Central FL”) and First Guaranty Bank & Trust (“FGB”) during January 2012 by its subsidiary bank. The Company invested those funds in its subsidiary bank such that the bank would have sufficient capital to support the initial balance sheets of the two acquired banks. Subsequent to the acquisitions, the Company exercised its option to reprice approximately $127,856 of internet time deposits assumed pursuant to the acquisition of FGB to current market interest rates. Subsequently, all of these deposits were withdrawn prior to maturity without penalty. By shrinking the balance sheet of its subsidiary bank, the Company freed up excess capital at the bank which returned the funds to the holding company in the form of a dividend on July 2, 2012. The Company then used these funds to immediately repay the note. The interest rate on the note was 90 day LIBOR plus 400 bps.

Corporate_Debenture

Corporate Debenture	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Corporate Debenture	'
	-15	Corporate Debenture
	In September 2003, the Company formed CenterState Banks of Florida Statutory Trust I (the “Trust”) for the purpose of issuing trust preferred securities. On September 22, 2003, the Company issued a floating rate corporate debenture in the amount of $10,000. The Trust used the proceeds from the issuance of a trust preferred security to acquire the corporate debenture. The trust preferred security essentially mirrors the corporate debenture, carrying a cumulative preferred dividend at a variable rate equal to the interest rate on the corporate debenture (three month LIBOR plus 305 basis points). The corporate debenture and the trust preferred security each have 30-year lives. The trust preferred security and the corporate debenture are callable by the Company or the Trust, at their respective option after five years, and sooner in specific events, subject to prior approval by the Federal Reserve, if then required. The Company has treated the corporate debenture as Tier 1 capital up to the maximum amount allowed under the Federal Reserve guidelines for federal regulatory purposes. The Company is not considered the primary beneficiary of this Trust (variable interest entity), therefore the trust is not consolidated in the Company’s financial statements, but rather the subordinated debentures are shown as a liability. The Company’s investment in the common stock of the trust was $310 and is included in other assets.
	In September 2004, Valrico Bancorp Inc. (“VBI”) formed Valrico Capital Statutory Trust (“Valrico Trust”) for the purpose of issuing trust preferred securities. On September 9, 2004, VBI issued a floating rate corporate debenture in the amount of $2,500. The Trust used the proceeds from the issuance of a trust preferred security to acquire the corporate debenture. On April 2, 2007, the Company acquired all the assets and assumed all the liabilities of VBI pursuant to the merger agreement, including VBI’s corporate debenture and related trust preferred security discussed above. The trust preferred security essentially mirrors the corporate debenture, carrying a cumulative preferred dividend at a variable rate equal to the interest rate on the corporate debenture (three month LIBOR plus 270 basis points). The corporate debenture and the trust preferred security each have 30-year lives. The trust preferred security and the corporate debenture are callable by the Company or the Valrico Trust, at their respective option after five years, and sooner in specific events, subject to prior approval by the Federal Reserve, if then required. The Company has treated the corporate debenture as Tier 1 capital up to the maximum amount allowed under the Federal Reserve guidelines for federal regulatory purposes. The Company is not considered the primary beneficiary of this Trust (variable interest entity), therefore the trust is not consolidated in the Company’s financial statements, but rather the subordinated debentures are shown as a liability. The Company’s investment in the common stock of the trust was $77 and is included in other assets.
	In September 2003, Federal Trust Corporation (“FTC”) formed Federal Trust Statutory I (“FTC Trust”) for the purpose of issuing trust preferred securities. On September 17, 2003, FTC issued a floating rate corporate debenture in the amount of $5,000. The Trust used the proceeds from the issuance of a trust preferred security to acquire the corporate debenture. In November 2011, the Company acquired certain assets and assumed certain liabilities of FTC from The Hartford Financial Services Group, Inc. (“Hartford”) pursuant to an acquisition agreement, including FTC’s corporate debenture and related trust preferred security issued through FTC’s finance subsidiary FTC Trust. The trust preferred security essentially mirrors the corporate debenture, carrying a cumulative preferred dividend at a variable rate equal to the interest rate on the corporate debenture (three month LIBOR plus 295 basis points). The corporate debenture and the trust preferred security each have 30-year lives maturing in 2033. The trust preferred security and the corporate debenture are callable by the Company or the FTC Trust, at their respective option after five years, and sooner in specific events, subject to prior approval by the Federal Reserve, if then required. The Company has treated the corporate debenture as Tier 1 capital up to the maximum amount allowed under the Federal Reserve guidelines for federal regulatory purposes. The Company is not considered the primary beneficiary of this Trust (variable interest entity), therefore the trust is not consolidated in the Company’s financial statements, but rather the subordinated debentures are shown as a liability. The Company’s investment in the common stock of the trust was $155 and is included in other assets.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	-16	Income Taxes
	Allocation of federal and state income tax expense (benefit) between current and deferred portions for the years ended December 31, 2013, 2012 and 2011, is as follows:


			Current				Deferred				Total
	December 31, 2013:
	Federal		$	4,423			$	27			$	4,450
	State			1,055				5				1,060

			$	5,478			$	32			$	5,510

	December 31, 2012:
	Federal		$	(32	)		$	3,761			$	3,729
	State			271				625				896

			$	239			$	4,386			$	4,625

	December 31, 2011:
	Federal		$	(169	)		$	2,818			$	2,649
	State			288				482				770

			$	119			$	3,300			$	3,419


	The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2013 and 2012, are presented below:


			December 31,
			2013				2012
	Deferred tax assets:
	Allowance for loan losses		$	7,890			$	9,975
	Deferred loan fees, net			—				172
	Stock based compensation			469				440
	Deferred compensation			2,598				1,705
	Impairment expenses			403				459
	Net operating loss carryforward			—				8,968
	Other real estate owned expenses			3,074				2,678
	Nonaccrual interest			560				629
	Unrealized loss on investment securities available for sale			2,816				—
	Other			1,007				883

	Total deferred tax assets			18,817				25,909

	Deferred tax liabilities:
	Premises and equipment, due to differences in depreciation methods and useful lives			(4,096	)			(4,840	)
	Deferred loan costs, net			(156	)			—
	Fair value adjustments			(8,937	)			(18,233	)
	Like kind exchange			(300	)			(293	)
	Unrealized gain on investment securities available for sale			—				(4,404	)
	Accretion of discounts on investments			(32	)			(31	)

	Total deferred tax liabilities			(13,521	)			(27,801	)

	Net deferred tax (liability) asset		$	5,296			$	(1,892	)

	In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. In performing this analysis, the Company considers all evidence currently available, both positive and negative, in determining whether based on the weight of that evidence, it is more likely than not the deferred tax asset will be realized.
	The Company and its subsidiaries are subject to U.S. federal income tax as well as income tax of the states of Florida, Georgia, Alabama, Colorado, North Carolina, and Tennessee. The Company is no longer subject to examination by taxing authorities for the years before 2010. The Company was not subject to any material interest or penalties on its income tax liabilities for the years 2011, 2012 and 2013.

	A reconciliation between the actual tax expense and the “expected” tax (benefit) expense, computed by applying the U.S. federal corporate rate of 35 percent (34 percent for 2012 and 2011) is as follows:


			December 31,
			2013				2012				2011
“Expected” tax (benefit) expense		$	6,214			$	4,940			$	3,851
Tax exempt interest, net			(907	)			(925	)			(856	)
Bank owned life insurance			(391	)			(412	)			(329	)
State income taxes, net of federal income tax benefits			689				591				508
Stock based compensation			100				104				111
Other, net			(195	)			327				134

		$	5,510			$	4,625			$	3,419

RelatedParty_Transactions

Related-Party Transactions	12 Months Ended
Related-Party Transactions	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related-Party Transactions	'
	-17	Related-Party Transactions
	Loans to principal officers, directors, and their affiliates during 2013 and 2012 were as follows:


			2013			2012
	Beginning balance		$	3,957		$	22,941
	New loans			2,354			2,382
	Effect of changes in composition of related parties			—			(18,870	)
	Repayments			(3,050	)		(2,496	)

	Ending balance		$	3,261		$	3,957

	At December 31, 2013 and 2012 principal officers, directors, and their affiliates had $2,057 and $1,257, respectively, of available lines of credit.
	Deposits from principal officers, directors, and their affiliates at year-end 2013 and 2012 were approximately $12,694 and $15,018, respectively.

Regulatory_Capital_Matters

Regulatory Capital Matters	12 Months Ended
Regulatory Capital Matters	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Regulatory Capital Matters	'
	-18	Regulatory Capital Matters
	The Company and the Bank are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s consolidated financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Company and the Bank must meet specific capital guidelines that involve quantitative measures of assets, liabilities and certain off-balance-sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.
	Quantitative measures established by regulation to ensure capital adequacy require the Company and the Bank to maintain minimum amounts and ratios (set forth in the table below) of total and Tier I capital (as defined in the regulations) to risk-weighted assets. Management believes, as of December 31, 2013, that the Company and the Bank meet all capital adequacy requirements to which they are subject.
	As of December 31, 2013 and 2012, the most recent notifications from the Office of Comptroller of the Currency (“OCC”) and the FDIC categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, the Bank must maintain total risk-based, Tier I risk-based and Tier I leverage ratios as set forth in the table. There are no conditions or events since that notification that management believes have changed the institution’s category. The Company’s subsidiary bank has an agreement with its primary regulator, OCC, to maintain a Tier 1 leverage ratio of at least 8%.
	A summary of actual, required, and capital levels necessary for capital adequacy purposes for the Company as of December 31, 2013 and 2012, are presented in the table below. There is no threshold for “well-capitalized” status for bank holding companies.


			Actual					For capital					To be well
								adequacy purposes					capitalized
													under Prompt
													corrective action
													provision
			Amount		Ratio			Amount		Ratio			Amount		Ratio
	December 31, 2013:
	Total capital (to risk weighted assets)		$	262,701		17.9	%	$	117,450		>8	%		n/a		n/a
	Tier 1 capital (to risk weighted assets)			244,323		16.6	%		58,725		>4	%		n/a		n/a
	Tier 1 capital (to average assets)			244,323		10.4	%		94,182		>4	%		n/a		n/a
	December 31, 2012:
	Total capital (to risk weighted assets)		$	249,016		17.9	%	$	111,360		>8	%		n/a		n/a
	Tier 1 capital (to risk weighted assets)			231,501		16.6	%		55,680		>4	%		n/a		n/a
	Tier 1 capital (to average assets)			231,501		9.9	%		93,432		>4	%		n/a		n/a
	A summary of actual, required, and capital levels necessary for capital adequacy purposes in the case of the Company’s subsidiary bank as of December 31, 2013 and 2012, are presented in the table below.


			Actual					For capital					To be well
								adequacy purposes					capitalized under
													prompt corrective
													action provision
			Amount		Ratio			Amount		Ratio			Amount		Ratio
	31-Dec-13
	CenterState Bank of Florida, N.A.
	Total capital (to risk weighted assets)		$	213,744		14.6	%	$	117,021		>8	%	$	146,277		>10	%
	Tier 1 capital (to risk weighted assets)			195,434		13.4	%		58,511		>4	%		87,766		>6	%
	Tier 1 capital (to average assets)			195,434		8.3	%		93,955		>4	%		117,444		>5	%

								For capital					To be well
													capitalized under
													prompt corrective
			Actual					adequacy purposes					action provision
			Amount		Ratio			Amount		Ratio			Amount		Ratio
	31-Dec-12
	CenterState Bank of Florida, N.A.
	Total capital (to risk weighted assets)		$	230,590		16.6	%	$	110,824		>8	%	$	138,530		>10	%
	Tier 1 capital (to risk weighted assets)			213,161		15.4	%		55,412		>4	%		83,118		>6	%
	Tier 1 capital (to average assets)			213,161		9.2	%		92,632		>4	%		115,789		>5	%

Dividends

Dividends	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Dividends	'
	-19	Dividends
	The Company declared and paid cash dividends on its common stock of $1,204, $1,203 and $1,201 during the years ended December 31, 2013, 2012 and 2011, respectively. Banking regulations limit the amount of dividends that may be paid by the subsidiary banks to the Company without prior approval of the Bank’s regulatory agency. In November 2013, the Company received a $34,000 dividend from its subsidiary bank. At December 31, 2013, there was no additional capacity available to pay additional dividends from the subsidiary bank to the Company, without prior approval of the Bank’s regulatory agency,

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'
Stock-Based Compensation	'
	-20	Stock-Based Compensation
	On April 25, 2013, the Company’s shareholders approved the CenterState Banks, Inc. 2013 Equity Incentive Plan (the “2013 Plan”). The 2013 Plan replaces the 2007 Plan discussed below. The 2013 Plan authorizes the issuance of up to 1,600,000 shares through the 2023 expiration of the plan. Of this amount 1,525,000 shares are allocated to employees, all of which may be issued as incentive stock options, and 75,000 shares are allocated to directors. The Company’s Board of Directors approved freezing the Company’s current 2007 Equity Incentive Plan whereby no additional future grants and/or awards will be award pursuant to that plan effective with the shareholder approval of the 2013 Plan. During 2013, the Company granted employee incentive stock options for 3,000 shares, with an average exercise price of $10.22 per share, pursuant to this plan. Options were granted at fair market value of the underlying stock at date of grant. Each option expires ten years from the date of grant. These options vest over a nine year period. In addition to incentive stock options, the Company also awarded 59,000 shares of restricted stock with an average fair value of $10.24 per share at the date of grant. These restricted stock awards vest ratably over periods ranging from four to ten years. At December 31, 2013, there were a total of 1,535,549 shares available for future grants pursuant to this Plan.
	On April 24, 2007, the Company’s shareholders approved the CenterState 2007 Equity Incentive Plan (the “2007 Plan”) and approved an amendment to the 2007 Plan on April 28, 2009. The 2007 Plan, as amended, replaces the 1999 Plan discussed below. The 2007 Plan, as amended, authorizes the issuance of up to 1,350,000 shares of the Company stock. Of this amount, 1,200,000 shares are allocated to employees, all of which may be issued as incentive stock options, and 150,000 shares are allocated to directors. During 2013, the Company did not grant any employee incentive stock options pursuant to the 2007 Plan. The Company awarded 500 shares of restricted stock with a fair value of $8.48 per share at the date of grant. These restricted stock awards vest ratably over a four year period. No future stock awards will be granted from this Plan.
	In 1999, the Company authorized 730,000 common shares for employees of the Company under an incentive stock option and non-statutory stock option plan (the “1999 Plan”). Options were granted at fair market value of the underlying stock at date of grant. Each option expires ten years from the date of grant. Options became 25% vested immediately as of the grant date and continued to vest at a rate of 25% on each anniversary date thereafter until fully vested. There were no stock options granted pursuant to the 1999 Plan subsequent to December 31, 2006. The 2007 Plan, discussed above, replaced the 1999 Plan. At December 31, 2013 there were 262,000 stock options outstanding which were granted pursuant to the 1999 Plan, all of which were currently exercisable. No future stock options will be granted from this Plan.
	In addition to the 1999 Plan, the Company assumed and converted the stock option plans of its subsidiary banks consistent with the terms and conditions of their respective merger agreements. These options are all vested and exercisable. At December 31, 2013, they represented exercisable options for 58,716 shares of the Company’s common stock.

	The Company’s stock-based compensation consists primarily of stock options and commencing in 2009 also includes restricted stock grants (“RSA”). During the twelve month period ended December 31, 2013, 2012 and 2011, the Company recognized total stock-based compensation expense as listed in the table below.


			2013				2012				2011
	Stock option expense		$	292			$	363			$	398
	RSA expense			317				268				307

	Total stock-based compensation expense		$	609			$	631			$	705

	There is no income tax benefit provided for in the Company’s tax provision for qualified incentive stock options. The Company receives a tax benefit when a non qualified stock option is exercised. The total income tax benefit related to the exercise of non qualified stock options was approximately $0, $0 and $0 during the twelve month periods ending December 31, 2013, 2012 and 2011, respectively. The Company provided an income tax benefit in its tax provision for RSA expenses of approximately $122, $101 and $115 during the twelve month periods ending December 31, 2013, 2012 and 2011, respectively.
	As of December 31, 2013, the total remaining unrecognized compensation cost related to non-vested stock options, net of estimated forfeitures, was approximately $1,010 and will be recognized over the next nine years. The weighted average period over which this expense is expected to be recognized is approximately 2.7 years.
	As of December 31, 2013, the total remaining unrecognized compensation cost related to non-vested restricted grants, net of estimated forfeitures, was approximately $2,086 and will be recognized over the next nine years. The weighted average period over which this expense is expected to be recognized is approximately 3.5 years.
	The Company granted stock options for 3,000, 57,500 and 4,000 shares of common stock during the twelve month periods ending December 31, 2013, 2012 and 2011, respectively.
	The estimated fair value of options granted during these periods were calculated as of the grant date using the Black-Scholes option-pricing model. The weighted-average assumptions as of the grant date are as follows:


			2013				2012				2011
	Expected option life			7.7 years				7.7 years				7.7 years
	Risk-free interest rate			1.91	%			1.08	%			1.6	%
	Expected volatility			44.5	%			44.3	%			42.8	%
	Dividend yield			0.39	%			0.62	%			0.69	%
	The Company determined the expected life of the stock options using the simplified method approach allowed for plain-vanilla share options as described in SAB 107. The risk-free interest rate is based on the U.S. Treasury yield curve in effect as of the grant date. Expected volatility was determined using historical volatility.
	ASC 718 requires the recognition of stock-based compensation for the number of awards that are ultimately expected to vest. As a result, for most awards, recognized stock compensation is reduced for estimated forfeitures prior to vesting. Estimated forfeitures will be reassessed in subsequent periods and may change based on new facts and circumstances.

	The weighted-average estimated fair value of stock options granted during the twelve month periods ended December 31, 2013, 2012 and 2011 was $4.91 per share, $3.09 per share and $2.46 per share respectively.
	The table below present’s information related to stock option activity for the years ended December 31, 2013, 2012 and 2011:


			2013				2012				2011
	Total intrinsic value of stock options exercised		$	2			$	—			$	13
	Cash received from stock options exercised			—				—				38
	Gross income tax benefit from the exercise of stock options			—				—				—
	A summary of stock option activity for the years ended December 31, 2013, 2012 and 2011 is as follows:


			December 31, 2013								December 31, 2012							December 31, 2011
							Weighted-								Weighted-							Weighted-
							Average								Average							Average
			Number of				Exercise				Number of				Exercise			Number of				Exercise
			Options				Price				Options				Price			Options				Price
	Options outstanding, beginning of period			1,158,646			$	13.64				1,128,304			$	14.03			1,265,054			$	13.59
	Options granted			3,000			$	10.22				57,500			$	6.87			4,000			$	5.78
	Options exercised			(1,714	)		$	8.9				—				—			(14,903	)		$	6.41
	Options forfeited			(86,216	)		$	11.22				(27,158	)		$	15.33			(125,847	)		$	10.26

	Options outstanding, end of period			1,073,716			$	13.83				1,158,646			$	13.64			1,128,304			$	14.03



							Weighted-				Weighted-
							Average				Average				Aggregate
			Number of				Exercise				Contractual				Intrinsic
			Options				Price				Term				Value
	Options outstanding, December 31, 2013			1,073,716			$	13.83				3.7 years			$	268
	Options fully vested and expected to vest, December 31, 2013			1,003,477			$	13.95				3.7 years			$	250
	Options exercisable, December 31, 2013			701,156			$	14.68				2.9 years			$	39
	A summary of restricted stock awards (“RSAs”) activity for the years ended December 31, 2013, 2012 and 2011 is as follows:


		31-Dec-13								31-Dec-12							31-Dec-11
		Number				Weighted-				Number				Weighted-			Number				Weighted-
		of RSAs				Average				of RSAs				Average			of RSAs				Average
						Grant date								Grant date							Grant date
						Stock price								Stock price							Stock price
RSAs outstanding, beginning of period			209,384			$	9.62				179,152			$	10.53			197,210			$	11.01
RSAs granted			59,500			$	10.22				54,500			$	6.87			18,500			$	5.78
RSAs vested			(28,543	)		$	9.66				(24,268	)		$	10.19			(35,835	)		$	10.75
RSAs forfeited			—				—				—				—			(723	)		$	10.36

RSAs outstanding, end of period			240,341			$	9.76				209,384			$	9.62			179,152			$	10.53

Employee_Benefit_Plan

Employee Benefit Plan	12 Months Ended
	Dec. 31, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefit Plan	'
	-21	Employee Benefit Plan
	Substantially all of the Company’s employees are covered under it is 401(k) defined contribution retirement plan. Employees are eligible to participate in the plan after completing six months of continuous employment. The Company contributes an amount equal to a certain percentage of the employees’ contributions based on the discretion of the Board of Directors. In addition, the Company may also make additional contributions to the plan each year, subject to profitability and other factors, and based solely on the discretion of the Board of Directors. For the years ended December 31, 2013, 2012 and 2011, the Company’s contributions to the plan were $1,219, $1,144 and $983, respectively, which are included in salary and benefits on the Consolidated Statements of Operations.

	In 2008, the Company entered into a salary continuation agreement with its chief executive officer. Five additional Company executive officers entered into salary continuation agreements during 2010. In 2007, an additional four pre-existing salary continuation agreements with certain Valrico State Bank’s executive officers were assumed as part of the acquisition. The plans are nonqualified deferred compensation arrangements that are designed to provide supplemental retirement income benefits to participants. The Company expensed $569, $501 and $532 for the accrual of future salary continuation benefits in 2013, 2012 and 2011, respectively. Other liabilities included salary continuation benefits payable of $3,143, $2,597 and $2,096 at December 31, 2013, 2012 and 2011, respectively.
	In 2007, the Company entered into deferred compensation arrangements, through Rabbi Trust agreements, with two Valrico State Bank’s executive officers pursuant to the acquisition. The Rabbi Trust asset is included in other assets, and the related deferred compensation payable is included in other liabilities. The Rabbi Trust asset and the related deferred compensation payable at December 31, 2013, 2012, and 2011 were $1,355, $1,158 and $1,034, respectively. Earnings from the Rabbi Trust increase the asset and increase the deferred compensation payable. Losses from the Rabbi Trust decrease the asset and decrease the deferred compensation payable. There is no net income statement effect other than the administration expenses of the Trust which approximates $5 per year.

Parent_Company_Only_Financial_

Parent Company Only Financial Statements	12 Months Ended
Parent Company Only Financial Statements	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Parent Company Only Financial Statements	'
	-22	Parent Company Only Financial Statements
	Condensed financial statements of CenterState Banks, Inc. (parent company only) follow:


	Condensed Balance Sheet
	December 31, 2013 and 2012
			2013				2012
	Assets:
	Cash and due from banks		$	966			$	270
	Inter-company receivable from bank subsidiary			45,703				2,000
	Investment in wholly-owned bank subsidiary			241,990				272,691
	Investment in other wholly-owned subsidiary			2,322				13,945
	Prepaid expenses and other assets			3,995				5,838

	Total assets		$	294,976			$	294,744

	Liabilities:
	Accounts payable and accrued expenses		$	4,601			$	4,243
	Corporate debenture			16,996				16,970

	Total liabilities			21,597				21,213
	Stockholders’ Equity:
	Common stock			301				301
	Additional paid-in capital			229,544				228,952
	Retained earnings			48,018				36,979
	Accumulated other comprehensive income			(4,484	)			7,299

	Total stockholders’ equity			273,379				273,531

	Total liabilities and stockholders’ equity		$	294,976			$	294,744



	Condensed Statements of Operations
	Years ended December 31, 2013, 2012 and 2011
			2013				2012				2011
	Dividend income		$	45,725			$	12,282			$	18,789
	Other income			—				5				559
	Interest expense			(602	)			(835	)			(448	)
	Operating expenses			(3,538	)			(3,142	)			(3,480	)

	Income before equity in net earnings of subsidiaries			41,585				8,310				15,420
	Equity in undistributed (losses) income in subsidiaries			(31,040	)			147				(8,660	)

	Net income before income tax benefit			10,545				8,457				6,760
	Income tax benefit			(1,697	)			(1,448	)			(1,149	)

	Net income		$	12,243			$	9,905			$	7,909



	Condensed Statements of Cash Flows
	Years ended December 31, 2013, 2012 and 2011
			2013				2012				2011
	Cash flows from operating activities:
	Net income		$	12,243			$	9,905			$	7,909
	Adjustments to reconcile net income to net cash used in operating activities:
	Equity in net earnings of subsidiaries			(14,686	)			(12,429	)			(10,129	)
	Increase in payables and accrued expenses			371				893				466
	Decrease (increase) in other assets			1,843				(1,164	)			(837	)
	Stock based compensation expense			107				142				203

	Net cash flows used in operating activities			(122	)			(2,653	)			(2,388	)

Cash flows from investing activities:
Inter-company receivables from subsidiary banks			(43,703	)			17,000				(3,550	)
Net cash from bank acquisition			—				—				5,020
Cash payments to VSB shareholders			—				—				(151	)
Investment in subsidiaries			—				(28,000	)			(14,450	)
Dividends from bank subsidiaries			34,000				10,000				1,170
Dividends from nonbank subsidiary			11,725				2,282				17,619

Net cash flows provided by investing activities			2,022				1,282				5,658

Cash flows from financing activities:
Stock options exercised, net of tax benefit			—				—				96
Dividends paid to shareholders			(1,204	)			(1,203	)			(1,201	)

Net cash flows used in financing activities			(1,204	)			(1,203	)			(1,105	)

Net increase (decrease) in cash and cash equivalents			696				(2,574	)			2,165
Cash and cash equivalents at beginning of year			270				2,844				679

Cash and cash equivalents at end of year		$	966			$	270			$	2,844

Credit_Commitments

Credit Commitments	12 Months Ended
Credit Commitments	Dec. 31, 2013
Text Block [Abstract]	'
Credit Commitments	'
	-23	Credit Commitments
	The Company has outstanding at any time a significant number of commitments to extend credit. These arrangements are subject to strict credit control assessments and each customer’s credit worthiness is evaluated on a case-by-case basis. A summary of commitments to extend credit and standby letters of credit written at December 31, 2013 and 2012, are as follows:


			December 31,
			2013		2012
	Standby letters of credit		$	6,769	$	2,885
	Available lines of credit			143,199		108,525
	Unfunded loan commitments – fixed			9,004		14,509
	Unfunded loan commitments – variable			14,179		32,298
	Because many commitments expire without being funded in whole or part, the contract amounts are not estimates of future cash flows.
	Credit risk represents the accounting loss that would be recognized at the reporting date if counterparties failed completely to perform as contracted. The credit risk amounts are equal to the contractual amounts, assuming that the amounts are fully advanced and that the collateral or other security is of no value.
	The Company’s policy is to require customers to provide collateral prior to the disbursement of approved loans. The amount of collateral obtained, if it is deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the counterparty. Collateral held varies but may include accounts receivable, inventory, real estate and income providing commercial properties.
	Standby letters of credit are contractual commitments issued by the Company to guarantee the performance of a customer to a third party. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers.
	Outstanding commitments are deemed to approximate fair value due to the variable nature of the interest rates involved and the short-term nature of the commitments.

Concentrations_of_Credit_Risk

Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2013
Risks And Uncertainties [Abstract]	'
Concentrations of Credit Risk	'
	-24	Concentrations of Credit Risk
	Most of the Company’s business activity is with customers located within Osceola, Orange, Pasco, Hernando, Citrus, Sumter, Lake, Hillsborough, Polk, Okeechobee, Indian River, Saint Lucie, Hendry, Marion, Putnam, Seminole, Volusia and Duval Counties of the State of Florida and portions of adjacent counties. The majority of commercial and mortgage loans are granted to customers doing business or residing in these areas. Generally, commercial loans are secured by real estate, and mortgage loans are secured by either first or second mortgages on residential or commercial property. As of December 31, 2013, substantially all of the Company’s loan portfolio was secured. Although the Company has a diversified loan portfolio, a substantial portion of its debtors’ ability to honor their contracts is dependent upon the economy of those Counties listed above and portions of adjacent counties. The Company does not have significant exposure to any individual customer or counterparty.

Basic_and_Diluted_Earnings_Per

Basic and Diluted Earnings Per Share	12 Months Ended
Basic and Diluted Earnings Per Share	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Basic and Diluted Earnings Per Share	'
	-25	Basic and Diluted Earnings Per Share
	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. There were an average of 1,110,465, 1,143,598, and 1,128,304 stock options that were anti-dilutive during the years ending December 31, 2013, 2012, and 2011, respectively. The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations for the periods presented.


			2013		2012		2011
	Numerator for basic and diluted earnings per share:
	Net income		$	12,243	$	9,905	$	7,909

	Net income available for common shareholders		$	12,243	$	9,905	$	7,909

	Denominator:
	Denominator for basic earnings per share
	- weighted-average shares			30,102,777		30,073,959		30,034,573
	Effect of dilutive securities:
	Employee stock based compensation awards			117,350		67,904		4,614
	Denominator for diluted earnings per share

	- adjusted weighted-average shares			30,220,127		30,141,863		30,039,187

	Basic earnings per share		$	0.41	$	0.33	$	0.26
	Diluted earnings per share		$	0.41	$	0.33	$	0.26

Reportable_Segments

Reportable Segments	12 Months Ended
Reportable Segments	Dec. 31, 2013
Segment Reporting [Abstract]	'
Reportable Segments	'
	-26	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 tables below are reconciliations of the reportable segment revenues, expenses, and profit as viewed by management to the Company’s consolidated total for the year ending December 31, 2013, 2012 and 2011.


			Year ending December 31, 2013
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	97,504			$	2,874			$	—							$	100,378
	Interest expense			(5,263	)			(20	)			(602	)							(5,885	)

	Net interest income			92,241				2,854				(602	)							94,493
	Provision for loan losses			76				—				—								76
	Other non interest income			13,536				20,410				—								33,946
	Other non interest expense			(86,726	)			(20,498	)			(3,538	)							(110,762	)

	Net income (loss) before taxes			19,127				2,766				(4,140	)							17,753
	Income tax (provision) benefit			(6,140	)			(1,067	)			1,697								(5,510	)

	Net income (loss)		$	12,987			$	1,699			$	(2,443	)						$	12,243

	Total assets		$	2,278,777			$	132,821			$	294,976			($	291,007	)		$	2,415,567



			Year ending December 31, 2012
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	90,899			$	4,051											$	94,950
	Interest expense			(7,617	)			(28	)			(836	)							(8,481	)

	Net interest income			83,282				4,023				(836	)							86,469
	Provision for loan losses			(9,220	)			—												(9,220	)
	Other non interest income			23,550				35,707				4								59,261
	Other non interest expense			(90,671	)			(28,168	)			(3,141	)							(121,980	)

	Net income (loss) before taxes			6,941				11,562				(3,973	)							14,530
	Income tax (provision) benefit			(1,722	)			(4,351	)			1,448								(4,625	)

	Net income (loss)		$	5,219			$	7,211			($	2,525	)						$	9,905

	Total assets		$	2,204,176			$	153,289			$	294,744			($	288,969	)		$	2,363,240



			Year ending December 31, 2011
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	78,373			$	3,870			$	—							$	82,243
	Interest expense			(11,711	)			(48	)			(448	)							(12,207	)

	Net interest income			66,662				3,822				(448	)							70,036
	Provision for loan losses			(45,985	)			(6	)			0								(45,991	)
	Other non interest income			74,347				27,066				559								101,972
	Other non interest expense			(87,327	)			(23,883	)			(3,479	)							(114,689	)

	Net (loss) income before taxes			7,697				6,999				(3,368	)							11,328
	Income tax benefit (provision)			(2,021	)			(2,633	)			1,235								(3,419	)

Net (loss) income		$	5,676			$	4,366			($	2,133	)						$	7,909

Total assets		$	2,115,552			$	164,660			$	282,954			($	278,707	)		$	2,284,459

Commercial and retail banking: The Company’s primary business is commercial and retail banking. Currently, the Company operates through one subsidiary bank and a non bank subsidiary, R4ALL, with 55 locations in eighteen counties throughout Central Florida providing traditional deposit and lending products and services to its commercial and retail customers.
Correspondent banking and bond sales division: Operating as a division of the Company’s subsidiary bank, its primary revenue generating activities are as follows: 1) the first, and largest, revenue generator is commissions earned on fixed income security sales; 2) the second category includes: spread income earned on correspondent bank deposits (i.e., federal funds purchased) and service fees on correspondent bank checking accounts; and, 3) the third, and smallest revenue generating category, includes fees from safe-keeping activities, bond accounting services for correspondents, and asset/liability consulting related activities. The customer base includes small to medium size financial institutions primarily located in Florida, Alabama and Georgia.

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, merger related costs and other expenses.

Business_Combinations

Business Combinations	12 Months Ended
Business Combinations	Dec. 31, 2013
Business Combinations [Abstract]	'
Business Combinations	'
	-27	Business combinations
	The acquisitions were accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. Both the purchased assets and liabilities assumed are recorded at their respective acquisition date fair values. Determining the fair values of assets and liabilities, especially the loan portfolio and foreclosed real estate, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair value.
	Acquisition of Central Florida State Bank and First Guaranty Bank & Trust
	The Company, through its subsidiary bank, purchased two failed financial institutions from the FDIC. On January 20, 2012 it purchased Central Florida State Bank (“Central FL”) in Belleview, Florida. On January 27, it purchased First Guaranty Bank & Trust (“FGB”) in Jacksonville, Florida. The acquisition related costs of Central FL and FGB were approximately $583 and $1,463, respectively, and these expenses are reported in merger and acquisition related expenses in the consolidated statement of income. As a result of these acquisitions, the Company expects to further solidify its market share in the Florida market, expand its customer base to enhance deposit fee income, and reduce operating costs through economies of scale.
	The Company exercised its option, pursuant to the FDIC purchase and assumption agreement, not to purchase Central FL’s branch real estate. During the first quarter of 2012, the Company consolidated three of the four Central FL branches into nearby existing CenterState branches. The fourth branch was consolidated into a nearby CenterState existing branch during July 2012.
	The Company also exercised its option, pursuant to the FDIC purchase and assumption agreement, and did not purchase six of the eight branch real estate locations of FGB. It has purchased two of the offices and consolidated the remaining six branches into the remaining two existing branches, which have approximately 75% of FGB’s deposits as of the acquisition date, during the second quarter of 2012. The two office locations were purchased at current market value based on current appraisals.

	All of the goodwill and other intangibles listed below is tax deductible over a 15 year period on a straight line basis. The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of acquisition.


	Acquired institution Date of acquisition		Central FL				FGB
	Acquired institution Date of acquisition		Jan 20, 2012				Jan 27, 2012
	Assets:
	Cash due from banks, Federal Reserve Bank (“FRB”) and Federal Home Loan Bank (“FHLB”)		$	4,870			$	77,642
	Federal funds sold			8,550				—
	Securities available for sale			1,942				3,500
	Loans covered by FDIC loss share agreements			31,376				181,882
	Loans not covered by FDIC loss share agreements			239				961
	Covered repossessed real estate owned (“OREO”)			2,347				15,318
	FDIC indemnification asset			15,018				70,070
	FHLB stock and FRB stock			168				1,627
	Goodwill			—				6,890
	Core deposit intangible			375				1,521
	Trust intangible			—				1,580
	Other assets			1,109				2,742

	Total assets acquired		$	65,994			$	363,733

	Liabilities:
	Deposits		$	65,209			$	353,099
	FHLB advances			—				10,060
	Other liabilities			332				574

	Total liabilities assumed		$	65,541			$	363,733

	Net assets acquired (bargain purchase gain)		$	453

	Deferred tax impact			(170	)

	Net assets acquired, including deferred tax impact		$	283

	The Company entered into loss share agreements with the FDIC that collectively cover legal unpaid balances of substantially all the loans acquired (except those loans identified above as not covered by FDIC loss share) and all the OREO acquired (collectively, the “Covered Assets”). Pursuant to the terms of the loss sharing agreements, the FDIC’s obligation to reimburse the Company for losses with respect to Covered Assets begins with the first dollar of loss incurred. The FDIC will reimburse the Company for 80% of losses with respect to the Covered Assets. The Company will reimburse the FDIC for its share of recoveries with respect to losses for which the FDIC paid the Company a reimbursement under the loss sharing agreements. The loss share agreements applicable to single family residential mortgage loans provide for FDIC loss sharing and Company reimbursement to the FDIC for recoveries for ten years. The loss share agreements applicable to commercial loans and other Covered Assets provides for FDIC loss sharing for five years and Company reimbursement to the FDIC for a total of eight years for recoveries.
	The acquisitions were accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. Both the purchased assets and liabilities assumed are recorded at their respective acquisition date fair values. Determining the fair values of assets and liabilities, especially the loan portfolio and foreclosed real estate, is a complicated process involving significant judgment regarding methods and assumptions used to calculate estimated fair values.

	All of the loans acquired are being accounted for pursuant to ASC Topic 310-30. We arrived at this conclusion as follows.
	First, we segregated all acquired loans with specifically identified credit deficiency factor(s). The factors we used were all acquired loans that were non-accrual, 60 days or more past due, designated as Trouble Debt Restructured (“TDR”), graded “special mention” or “substandard,” had more than five 30 day past due notices or had any 60 day or 90 day past due notices during the loan term. For this disclosure purpose, we refer to these loans as Type A loans. As required by generally accepted accounting principles, we are accounting for these loans pursuant to ASC Topic 310-30. Second, all remaining acquired loans, those without specifically identified credit deficiency factors, we refer to as Type B loans for disclosure purposes, were then grouped into pools with common risk characteristics. These loans were then evaluated to determine estimated fair values as of the acquisition date. Although no specific credit deficiencies were identifiable, we believe there is an element of risk as to whether all contractual cash flows will be eventually received. Factors that were considered included the poor economic environment both nationally and locally as well as the unfavorable real estate market particularly in Florida. In addition, these loans were acquired from two failed financial institutions, which implies potentially deficient, or at least questionable, credit underwriting. Based on management’s estimate of fair value, each of these pools was assigned a discount credit mark. We have applied ASC Topic 310-30 accounting treatment by analogy to Type B loans. The result is that all loans acquired from these two failed financial institutions will be accounted for under 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 the respective acquisition dates. Contractually required principal and interest payments have been adjusted for estimated prepayments.


			at acquisition dates
			Type A				Type B
			loans				loans				Total
	Contractually required principal and interest		$	118,393			$	244,737			$	363,130
	Non-accretable difference			(57,632	)			(57,533	)			(115,165	)

	Cash flows expected to be collected			60,761				187,204				247,965
	Accretable yield			(2,950	)			(30,557	)			(33,507	)

	Total acquired loans		$	57,811			$	156,647			$	214,458

	Type A loans: acquired loans with specifically identified credit deficiency factor(s).
	Type B loans: all other acquired loans.
	Income on acquired loans, whether Type As or Type Bs, is recognized in the same manner 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 operating results of the Company for the twelve month period ended December 31, 2012 includes the operating results of the acquired assets and assumed liabilities since the acquisition date of January 20, 2012 for Central FL and January 27, 2012 for FGB. Due primarily to the significant amount of fair value adjustments and the Loss Share Agreements now in place, historical results of Central FL and FGB are not believed to be relevant to the Company’s results, and thus no pro forma information is presented.

Measurement period adjustments
On January 27, 2012 the Company purchased FGB. 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 non-performing loans acquired.


						measurement
		Jan 27, 2012				period				Jan 27, 2012
		(as initially reported)				adjustments				(as adjusted)
Assets:
Cash due from banks, Federal Reserve Bank and
Federal Home Loan Bank		$	77,642			$	—			$	77,642
Securities available for sale			3,500								3,500
Loans covered by FDIC loss share agreements			171,949				9,933				181,882
Loans not covered by FDIC loss share agreements			961								961
Covered repossessed real estate owned			15,318								15,318
FDIC indemnification asset			78,148				(8,078	)			70,070
FHLB stock			1,627								1,627
Goodwill			8,745				(1,855	)			6,890
Core deposit intangible			1,521								1,521
Trust intangible			1,580								1,580
Other assets			2,742								2,742

Total assets acquired		$	363,733			$	—			$	363,733

Liabilities:
Deposits		$	353,099			$	—			$	353,099
FHLB advances			10,060								10,060
Other liabilities			574								574

Total liabilities assumed		$	363,733			$	—			$	363,733

Derivatives

Derivatives	12 Months Ended
Derivatives	Dec. 31, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	-28	Derivatives
	The Company enters into interest rate swaps in order to provide commercial loan clients the ability to swap from fixed to variable interest rates. Under these agreements, the Company enters into a fixed-rate loan with a client in addition to a swap agreement. This swap agreement effectively converts the client’s fixed rate loan into a variable rate. The Company then enters into a matching swap agreement with a third party dealer in order to offset its exposure on the customer swap. At years ended December 31, 2013 and 2012, the notional amount of such arrangements was $91,058 and $25,133, respectively, and investment securities with a fair value of $6,140 and $3,398 were pledged as collateral to the third party dealers. As the interest rate swaps with the clients and third parties are not designated as hedges under ASC 815, changes in market values are reported in earnings.
	Summary information about the derivative instruments is as follows:


			2013			2012
	Notional amount		$	91,058		$	25,133
	Weighted average pay rate on interest-rate swaps			4.34	%		5.03	%
	Weighted average receive rate on interest rate swaps			1.71	%		2	%
	Weighted average maturity (years)			10			12
	Fair value of interest rate swap derivatives (asset)		$	2,603		$	1,131
	Fair value of interest rate swap derivatives (liability)		$	2,496		$	2,014

Subsequent_Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2013
Subsequent Events [Abstract]	'
Subsequent Events	'
	-29	Subsequent Events
	Acquisition of Gulfstream Bancshares, Inc.
	On January 17, 2014, the Company completed its previously announced acquisition of Gulfstream Bancshares, Inc. (“Gulfstream”) as set forth in the Agreement and Plan of Merger (“Agreement”) whereby Gulfstream merged with and into the Company. The results of this acquisition are not included in the Company’s Consolidated Balance Sheets or Statements of Operations and Comprehensive Income. 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 $31,104, 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 converted to Gulfstream common shares upon the change in control			155,629

	Total Gulfstream common shares including converted preferred shares			1,724,993
	Per share exchange ratio			3.012

	Number of shares of CenterState common stock - as converted			5,195,679
	Multiplied by CenterState common stock price on January 16, 2014		$	10.23

	Fair value of CenterState common stock issued		$	53,152

	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		$	25,271

	Total Stock Consideration		$	53,152
	Total Cash Consideration			25,271

	Total consideration paid to Gulfstream common shareholders		$	78,423
	Fair value of current Gulfstream stock options 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 , excluding goodwill, and liabilities assumed as of the January 17, 2014 purchase date.


			Fair Value
			at Jan 17, 2014
	Cash and cash items		$	102,278
	Loans			329,515
	Purchased credit impaired loans			30,068
	Loan 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 real estate owned			3,365
	Core deposit intangible			4,173
	Deferred income tax asset, net			6,908
	Other assets			4,094

	Total assets acquired		$	554,156

	Deposits		$	478,999
	Federal Home loan advances			5,708
	Repurchase agreements			7,576
	Interest payable			125
	Official checks outstanding			826
	Trust Preferred Security			6,745
	Other liabilities			3,241

Total liabilities assumed		$	503,220

Net assets acquired, excluding goodwill		$	50,936


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 will be 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
		balance			value
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.
The following table presents pro-forma information as if the acquisition had occurred at the beginning of 2011. The pro-forma information includes adjustments for interest income on loans acquired, amortization of intangibles arising from the transaction, interest expense on deposits acquired, interest expense on trust preferred securities assumed, effect of redeeming preferred stock, and the related income tax effects. The pro-forma financial information is not necessarily indicative of the results of operations that would have occurred had the transactions been effected on the assumed dates.


		2013			2012
Net interest income		$	113,450		$	107,448

Net income available to common shareholders		$	16,377		$	15,060

EPS- basic		$	0.46		$	0.43
EPS- diluted		$	0.46		$	0.43

Entry into a Material Definitive Agreement with First Southern Bancorp, Inc.
On January 29, 2014, the Company announced it entered into an Agreement and Plan of Merger (the “Agreement”) with First Southern Bancorp, Inc. (“First Southern”), whereby First Southern will be merged with and into the Company (the “Merger”), with the Company continuing as the surviving corporation in the Merger. As soon as possible after the Merger, the Company’s wholly owned subsidiary bank, CenterState Bank of Florida, N.A. (“CenterState Bank”) and First Southern’s subsidiary bank, First Southern Bank, will merge with CenterState Bank as the surviving bank. Under the terms of the Agreement each outstanding share of First Southern common stock will be converted into the right to receive 0.30 shares of the Company’s common stock and $3.00 in cash. The Agreement has been unanimously approved by the boards of directors of the Company and First Southern. The transaction is expected to close in the third quarter of 2014 subject to the satisfaction of customary conditions, including receipt of all required regulatory approvals and the Company and First Southern’s shareholder approval.
First Southern Bank, which is headquartered in Boca Raton, Florida, currently operates 17 banking locations in the Orlando, Jacksonville, and West Palm Beach-Fort Lauderdale MSAs. As of December 31, 2013, First Southern reported assets of $1,093,256, loans of $635,492 and deposits of $882,732.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Nature of Operations and Principles of Consolidation	'
		(a)	Nature of operations and principles of consolidation
	The consolidated financial statements of CenterState Banks, Inc. (the “Company”) include the accounts of CenterState Banks, Inc. (the “Parent Company”), and its wholly owned subsidiaries CenterState Bank of Florida, N.A. and R4ALL, Inc. All significant intercompany accounts and transactions have been eliminated in consolidation.
	At December 31, 2013, the Company, through its subsidiary banks, operates through 55 full service banking locations in eighteen counties throughout Central Florida, providing traditional deposit and lending products and services to its commercial and retail customers. The Company’s primary deposit products are checking, savings and term certificate accounts, and its primary lending products include commercial real estate loans, residential real estate loans, commercial loans and consumer loans. Substantially all loans are secured by commercial real estate, residential real estate, business assets or consumer assets. There are no significant concentrations of loans to any one industry or customer. However, the customers’ ability to repay their loans is dependent on the real estate and general economic conditions in the area.
	The Company, through its CenterState Bank of Florida, N.A. subsidiary, also operates a correspondent banking and bond sales division. The division is integrated with and part of the subsidiary bank located in Winter Haven, Florida, although the majority of the bond salesmen, traders and support personnel are physically located in leased facilities in Birmingham, Alabama and Atlanta, Georgia. The primary revenue generating activity of this division is commissions earned on fixed income security sales. Other revenue generating activities include correspondent bank deposits (i.e. federal funds purchased), fees earned on correspondent bank checking accounts, fees earned from safe-keeping activities, bond accounting services for correspondents, and asset/liability consulting related activities.
	R4ALL, Inc. is a non bank subsidiary incorporated during the third quarter of 2009. The primary purpose of this subsidiary is to purchase, hold, and dispose of troubled assets acquired from the Company’s subsidiary bank.
	The following is a description of the basis of presentation and the significant accounting and reporting policies, which the Company follows in preparing and presenting its consolidated financial statements.
Use of Estimates	'
		(b)	Use of estimates
	To prepare financial statements in conformity with U.S. generally accepted accounting principles, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided. Significant items subject to estimates and assumptions include allowance for loan losses, FDIC indemnification asset, fair values of financial instruments, useful life of intangibles and valuation of goodwill, fair value estimates of stock-based compensation, fair value estimates of OREO, and deferred tax assets. Actual results could differ from these estimates.
Cash Flow Reporting	'
		(c)	Cash flow reporting
	For purposes of the statement of cash flows, the Company considers cash and due from banks, federal funds sold, money market and non interest bearing deposits in other banks with a purchased maturity of three months or less to be cash equivalents. Net cash flows are reported for customer loan and deposit transactions, interest bearing deposits in other financial institutions, federal funds purchased, repurchase agreements, proceeds from capital offering and other borrowed funds.
Interest Bearing Deposits in Other Financial Institutions	'
		(d)	Interest bearing deposits in other financial institutions
	Interest bearing deposits in other financial institutions mature within one year and are carried at cost and are included in cash and due from banks in the Consolidated Balance Sheets.
Trading Securities	'
		(e)	Trading securities
	The Company engages in trading activities for its own account. Securities that are held principally for resale in the near term are recorded at fair value with changes in fair value included in earnings. Interest is included in net interest income.
Investment Securities Available for Sale	'
		(f)	Investment securities available for sale
	Debt securities not classified as held to maturity or trading are classified as available for sale. Securities available for sale are carried at fair value, with unrealized holding gains and losses reported in other comprehensive income, net of tax.
	Interest income includes amortization of purchase premium or discount. Premiums and discounts on securities are amortized on the level-yield method without anticipating prepayments, except for mortgage backed securities where prepayments are anticipated. Gains and losses on sales are recorded on the trade date and determined using the specific identification method.
	Securities are evaluated for other-than-temporary impairment (“OTTI”) on at least a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. For securities in an unrealized loss position, management considers the extent and duration of the unrealized loss, and the financial condition and near-term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) other-than-temporary impairment related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis.
Bond Commissions Revenue Recognition	'
		(g)	Bond commissions revenue recognition
	Bond sales transactions and related revenue and expenses are recorded on a settlement date basis. The effect on the financial statements of using the settlement date basis rather than the trade date basis is not material.
Loans Held for Sale	'
		(h)	Loans held for sale
	Mortgage loans originated and intended for sale in the secondary market are carried at the lower of aggregate cost or fair value, as determined by outstanding commitments from investors. Net unrealized losses, if any, are recorded as a valuation allowance and charged to earnings. Mortgage loans held for sale are generally sold with servicing rights released. Gains and losses on sales of mortgage loans are based on the difference between the selling price and the carrying value of the related loan sold.
Loans	'
		(i)	Loans
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at their outstanding unpaid principal balance net of purchase premiums and discounts, deferred loan fees and costs, and an allowance for loan losses. Interest income is accrued on the unpaid principal balance. The recorded investment in a loan excludes accrued interest receivable, deferred fees, and deferred costs because they are not considered material.
	A loan is considered a troubled debt restructured loan based on individual facts and circumstances. A modification may include either an increase or reduction in interest rate or deferral of principal payments or both. Loans for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings. The Company classifies troubled debt restructured loans as impaired and evaluates the need for an allowance for loan losses on a loan-by-loan basis. An allowance for loan losses is based on either the present value of estimated future cash flows or the estimated fair value of the underlying collateral. Loans retain their interest accrual status at the time of modification.
	Loan origination fees and the incremental direct cost of loan origination, are deferred and recognized in interest income without anticipating prepayments over the contractual life of the loans. If the loan is prepaid, the remaining unamortized fees and costs are charged or credited to interest income. Amortization ceases for nonaccrual loans.
	A loan is moved to nonaccrual status in accordance with the Company’s policy typically after 90 days of non-payment, or less than 90 days of non-payment if management determines that the full timely collection of principal and interest becomes doubtful. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal or interest is considered doubtful. Nonaccrual loans and loans past due 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. Single family home loans, consumer loans and smaller commercial, land, development and construction loans (less than $500) are monitored by payment history, and as such, past due payments is generally the triggering mechanism to determine nonaccrual status. Larger (greater than $500) commercial, land, development and construction loans are monitored on a loan level basis, and therefore in these cases it is more likely that a loan may be placed on nonaccrual status before it becomes 90 days past due.
	All interest accrued but not received for loans placed on nonaccrual, is reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured. Non real estate consumer loans are typically charged off no later than 120 days past due.
	The Company, considering current information and events regarding the borrower’s ability to repay their obligations, considers a loan to be impaired when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. When a loan is considered to be impaired, the amount of the impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, the secondary market value of the loan, or the fair value of the collateral for collateral dependent loans. Interest income on impaired loans is recognized in accordance with the Company’s non-accrual policy. Impaired loans are written down to the extent that principal is judged to be uncollectible and, in the case of impaired collateral dependent loans where repayment is expected to be provided solely by the underlying collateral and there is no other available and reliable sources of repayment, are written down to the lower of cost or collateral value less estimated selling costs. Impairment losses are included in the allowance for loan losses. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not separately identified for impairment disclosures.
Purchased Credit-Impaired Loans	'
		(j)	Purchased credit-impaired loans
	As a part of business acquisitions, the Company acquires loans, some of which have shown evidence of credit deterioration since origination. These purchased credit-impaired (“PCI”) loans were determined to be credit impaired based on specific risk characteristics of the loan, including product type, domicile of the borrower, past due status, owner occupancy status, geographic location of the collateral, and loan to value ratios. Purchasers are permitted to aggregate credit impaired loans acquired in the same fiscal quarter into one or more pools, provided that the loans have common risk characteristics. A pool is then accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. For the loan portfolios acquired through failed bank acquisitions, the Company aggregated the commercial, consumer, and residential loans into ten pools of loans with common risk characteristics for each FDIC failed institution acquired. These acquired loans were recorded at the acquisition date fair value, and after acquisition, losses are recognized through the allowance for loan losses. The Company estimates the amount and timing of expected cash flows for each acquired loan pool and the expected cash flows in excess of the amount paid is recorded as interest income over the remaining life of the loan pools.
	On a quarterly basis, the Company updates the amount of loan principal and interest cash flows expected to be collected, incorporating assumptions regarding default rates, loss severities, the amounts and timing of prepayments and other factors that are reflective of current market conditions. Probable decreases in expected loan principal cash flows trigger the recognition of impairment, which is then measured as the present value of the expected principal loss plus any related foregone interest cash flows discounted at the pool’s effective interest rate. Impairments that occur after the acquisition date are recognized through the provision for loan losses. Probable and significant increases in expected principal cash flows would first reverse any previously recorded allowance for loan losses; any remaining increases are recognized prospectively as interest income. The impacts of (i) prepayments, (ii) changes in variable interest rates, and (iii) any other changes in the timing of expected cash flows are recognized prospectively as adjustments to interest income. Disposals of loans, which may include sales of loans, receipt of payments in full by the borrower, or foreclosure, result in removal of the loan from the purchased credit impaired portfolio.
Concentration of Credit Risk	'
		(k)	Concentration of credit risk
	Most of the Company’s business activity is with customers located within Florida. Therefore, the Company’s exposure to credit risk is significantly affected by changes in the economy and the real estate market within Florida, primarily central and northeastern Florida.
Allowance for Loan Losses	'
		(l)	Allowance for loan losses
	The allowance for loan losses is a valuation allowance for probable incurred credit losses. Loan losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged-off.

	The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired. The general component covers loans that are not individually classified as impaired and is based on historical loss experience adjusted for current factors.
	A loan is impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loans, for which the terms have been modified resulting in a concession, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings and classified as impaired.
	Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
	If a loan is impaired, a portion of the allowance is allocated so that the loan is reported, net, at the present value of estimated future cash flows using the loan’s existing rate or at the fair value of collateral if repayment is expected solely from the collateral. Commercial, commercial real estate, land, acquisition and development, and construction loans over $500 are individually evaluated for impairment. Large groups of smaller balance homogeneous loans, such as consumer and residential real estate loans, are collectively evaluated for impairment, and accordingly, they are not separately identified for impairment disclosures. Troubled debt restructurings are separately identified for impairment disclosures and are measured at the present value of estimated future cash flows using the loan’s effective rate at inception. If a troubled debt restructuring is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For troubled debt restructurings that subsequently default, the Company determines the amount of reserve in accordance with the accounting policy for the allowance for loan losses.
	The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. The historical loss experience is determined by portfolio segment and is based on the actual loss history experienced by the Company over the most recent two years. During the third quarter of 2011, the Company changed from one quarter lag to current quarter when calculating historical loss rates, because it is more reflective of the most recent allowance for loan loss activities. The portfolio segments identified by the Company are residential loans, commercial real estate loans, construction and land development loans, commercial and industrial and consumer and other. This actual loss experience is supplemented with other economic factors based on the risks present for each portfolio segment. These economic factors include consideration of the following: levels of and trends in delinquencies and impaired loans; levels of and trends in charge-offs and recoveries; trends in volume and terms of loans; effects of any changes in risk selection and underwriting standards; other changes in lending policies, procedures, and practices; experience, ability, and depth of lending management and other relevant staff; national and local economic trends and conditions; industry conditions; and effects of changes in credit concentrations.

	Prior to March 31, 2013, management evaluated its loan portfolio through six portfolio segments. The six segments were residential real estate, commercial real estate, land/ land development/construction, commercial, consumer/other and loans acquired through the acquisition of Federal Trust Bank (“FTB”) on November 1, 2011. Management evaluated the purchased loans from FTB as a separate segment because the loans were selected performing loans as of the November 1, 2011 purchase date and because management had the option to put back any loan that became 30 days past due or adversely classified for a one year period which expired on November 1, 2012. Management evaluated this sixth loan portfolio segment during the first quarter of 2013 and concluded the loans no longer needed to be analyzed as a separate loan portfolio segment when estimating the allowance for loan losses. The difference between evaluating the loans as a separate portfolio segment versus including the loans in the Company’s historical classifications was not material.
	With the Company no longer evaluating loans acquired from FTB as a separate portfolio segment, the Company segregates and evaluates its loan portfolio through the remaining five portfolio segments: residential real estate, commercial real estate, land/ land development/construction, commercial and consumer/other.
	Residential real estate loans are a mixture of fixed rate and adjustable rate residential mortgage loans, including first mortgages, second mortgages or home equity lines of credit. As a policy, the Company holds adjustable rate loans and sells a portion of its fixed rate loan originations into the secondary market. Changes in interest rates or market conditions may impact a borrower’s ability to meet contractual principal and interest payments. Residential real estate loans are secured by real property.
	Commercial real estate loans include loans secured by office buildings, warehouses, retail stores and other property located in or near our markets. These loans are originated based on the borrower’s ability to service the debt and secondarily based on the fair value of the underlying collateral.
	Land/land development/construction loans include residential and commercial real estate loans and include a mixture of owner occupied and non-owner occupied. The majority of the loans in this category are land related, either undeveloped land, land held for development, residential building lots and commercial building lots. Generally the terms are three to five years, with a potential for renewal at maturity.
	Commercial loans consist of small-to medium-sized businesses including professional associations, medical services, retail trade, transportation, wholesale trade, manufacturing and tourism. Commercial loans are derived from our market areas and underwritten based on the borrower’s ability to service debt from the business’s underlying cash flows. As a general practice, we obtain collateral such as inventory, accounts receivable, equipment or other assets although such loans may be uncollateralized but guaranteed.
	Consumer and other loans include automobiles, boats, mobile homes without land, or uncollateralized but personally guaranteed loans. These loans are originated based primarily on credit scores, debt-to-income ratios and loan-to-value ratios.
Transfer of Financial Assets	'
		(m)	Transfer of financial assets
	Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Other Repossessed Real Estate Owned	'
		(n)	Other repossessed real estate owned
	Assets acquired through or instead of loan foreclosure are initially recorded at fair value less costs to sell when acquired, establishing a new cost basis. These assets are subsequently accounted for at lower of cost or fair value less estimated costs to sell. If fair value declines subsequent to foreclosure, a valuation allowance is recorded through expense. Operating costs after acquisition are expensed. Repossessed real estate is included in other repossessed real estate owned and other repossessed assets other than real estate is included in prepaid expenses and other assets in the Consolidated Balance Sheets.
Premises and Equipment	'
		(o)	Premises and equipment
	Land is carried at cost. Premises and equipment are stated at cost less accumulated depreciation. Depreciation is provided on a straight-line basis over the estimated useful lives of the related assets. Buildings are depreciated over a 39 year period, and furniture, fixtures and equipment are depreciated over their related useful life (3 to 15 years). Leasehold improvements are depreciated over the shorter of their useful lives or the term of the lease. Major renewals and betterments of property are capitalized; maintenance, repairs, and minor renewals and betterments are expensed in the period incurred. Upon retirement or other disposition of the asset, the asset cost and related accumulated depreciation are removed from the accounts, and gains or losses are included in income.
Software Costs	'
		(p)	Software costs
	Costs of software developed for internal use, such as those related to software licenses, programming, testing, configuration, direct materials and integration, are capitalized and included in premises and equipment. Included in the capitalized costs are those costs related to both our personnel and third party consultants involved in the software development and installation. Once placed in service, the capitalized asset is amortized on a straight-line basis over its estimated useful life, generally three to five years. Capitalized costs of software developed for internal use are reviewed periodically for impairment.
Federal Home Loan Bank (FHLB) and Federal Reserve Bank (FRB) Stock	'
		(q)	Federal Home Loan Bank (FHLB) and Federal Reserve Bank (FRB) stock
	The Company’s subsidiary bank is a member of the FHLB and FRB system. Members are required to own a certain amount of stock based on the level of borrowings and other factors, and may invest in additional amounts. FHLB and FRB stock is carried at cost, classified as a restricted security, and periodically evaluated for impairment based on ultimate recovery of par value. Both cash and stock dividends are reported as income.
Bank Owned Life Insurance (BOLI)	'
		(r)	Bank owned life insurance (BOLI)
	The Company, through its subsidiary bank, has purchased life insurance policies on certain key executives. Bank owned life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.
Goodwill and Other Intangible Assets	'
		(s)	Goodwill and other intangible assets
	Goodwill resulting from business combinations prior to January 1, 2009 represents the excess of the purchase price over the fair value of the net assets of businesses acquired. Goodwill resulting from business combinations after January 1, 2009, is generally determined as the excess of the fair value of the consideration transferred, plus the fair value of any noncontrolling interests in the acquiree, over the fair value of the net assets acquired and liabilities assumed as of the acquisition date. Goodwill and intangible assets acquired in a purchase business combination and determined to have an indefinite useful life are not amortized, but tested for impairment at least annually. The Company has selected November 30 as the date to perform the annual impairment test. Intangible assets with definite useful lives are amortized over their estimated useful lives to their estimated residual values. Goodwill is the only intangible asset with an indefinite life on the Company’s balance sheet.
	The core deposit intangibles are intangible assets arising from either whole bank acquisitions or branch acquisitions. They are initially measured at fair value and then amortized over a ten-year period on an accelerated basis using the projected decay rates of the underlying core deposits.
	The trust intangible represents the value of the Trust business (“Trust”) acquired pursuant to the Company’s January 27, 2012 acquisition of First Guaranty Bank and Trust of Jacksonville (“FGB”) in Jacksonville, Florida. The intangible was initially measured at fair value and then amortized over a ten-year period on an accelerated basis.
FDIC Indemnification Asset	'
		(t)	FDIC Indemnification Asset
	The FDIC Indemnification Asset represents the estimated amounts due from the FDIC pursuant to the Loss Share Agreements related to the acquisitions of the three failed banks acquired in 2010 and the two in 2012. At acquisition, the FDIC Indemnification Asset represented the discounted value of the FDIC’s reimbursed portion of the estimated losses the Company expects to realize on the loans and other real estate (“Covered Assets”) acquired as a result of the acquisitions. The range of discount rates used on the FDIC Indemnification Asset was 1.21% to 4.53%. As losses are realized on Covered Assets, the portion that the FDIC pays the Company in cash for principal and up to 90 days of interest reduces the FDIC Indemnification Asset. On a quarterly basis, the Company will evaluate the FDIC Indemnification Asset to determine if the estimated losses on Covered Assets support the amount recorded as the FDIC Indemnification Asset. Income accretion is recognized during the loss share period. If the expectation of future losses decline, the income accretion is reduced prospectively over the lesser of the term of the loss share agreement and the estimated remaining life of the Covered Asset.
Loan Commitments and Related Financial Instruments	'
		(u)	Loan commitments and related financial instruments
	Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and commercial letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Stock-Based Compensation	'
		(v)	Stock-based compensation
	Compensation cost is recognized for stock options and restricted stock awards issued to employees, based on the fair value of these awards at the date of grant. A Black-Scholes model is utilized to estimate the fair value of stock options, while the market price of the Company’s common stock at the date of grant is used for restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period.
Income Taxes	'
		(w)	Income taxes
	Income tax expense is the total of the current year income tax due or refundable and the change in deferred tax assets and liabilities. Deferred tax assets and liabilities are the expected future tax amounts for the temporary differences between carrying amounts and tax bases of assets and liabilities, computed using enacted tax rates. A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized.
	A tax position is recognized as a benefit only if it is “more likely than not” that the tax position would be sustained in a tax examination, with a tax examination being presumed to occur. The amount recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on examination. For tax positions not meeting the “more likely than not” test, no tax benefit is recorded.
	The Company recognizes interest and/or penalties related to income tax matters in other expenses.
Retirement Plans	'
		(x)	Retirement plans
	Employee 401(k) plan expense is the amount of matching contributions. Deferred compensation and supplemental retirement plan expense allocates the benefits over years of service.
Marketing and Advertising Costs	'
		(y)	Marketing and advertising costs
	Marketing and advertising costs are expensed as incurred.
Earnings Per Common Share	'
		(z)	Earnings per common share
	Basic earnings per common share is net income divided by the weighted average number of common shares outstanding during the period. All outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends are considered participating securities for this calculation. Diluted earnings per common share includes the dilutive effect of additional potential common shares issuable under stock options. Earnings and dividends per share are restated for all stock splits and stock dividends through the date of issuance of the financial statements.
Comprehensive Income	'
		(aa)	Comprehensive income
	Comprehensive income consists of net income and other comprehensive income. Other comprehensive income includes unrealized gains and losses on securities available for sale, which are also recognized as separate components of shareholders’ equity.
Loss Contingencies	'
		(ab)	Loss contingencies
	Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated. Management does not believe there now are such matters that will have a material effect on the financial statements.
Restrictions on Cash	'
		(ac)	Restrictions on cash
	Cash on hand or on deposit with the Federal Reserve Bank is generally required to meet regulatory reserve and clearing requirements.
Dividend Restriction	'
		(ad)	Dividend restriction
	Banking regulations require maintaining certain capital levels and may limit the dividends paid by the banks to the holding company or by the holding company to stockholders.
Fair Value of Financial Instruments	'
		(ae)	Fair value of financial instruments
	Fair values of financial instruments are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect the estimates.
Segment Reporting	'
		(af)	Segment reporting
	The Company’s correspondent banking and bond sales division represents a distinct reportable segment which differs from the Company’s primary business of commercial and retail banking in central Florida. Accordingly, a reconciliation of reportable segment revenues, expenses and profit to the Company’s consolidated total has been presented in note 26.
Derivatives	'
		(ag)	Derivatives
	The Company enters into interest rate swaps in order to provide commercial loan clients the ability to swap from fixed to variable interest rates. Under these agreements, the Company enters into a fixed-rate loan with a client in addition to a swap agreement. This swap agreement effectively converts the client’s fixed rate loan into a variable rate. The Company then enters into a matching swap agreement with a third party dealer in order to offset its exposure on the customer swap. The Company does not use derivatives for trading purposes. The derivative transactions are considered instruments with no hedging designation, otherwise known as stand-alone derivatives. Changes in the fair value of the derivatives are reported currently in earnings.
Reclassifications	'
		(ah)	Reclassifications
	Some items in the prior year financial statements were reclassified to conform to the current presentation. Reclassifications had no effect on prior years net income or shareholders’ equity.
Effect of New Pronouncements	'
		(ai)	Effect of new pronouncements
	In February 2013, the Financial Accounting Standards Board (FASB) issued updated guidance related to disclosure of reclassification amounts out of other comprehensive income. The standard requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and the income statement line items affected by the reclassification. The new requirements will take effect for public companies in fiscal years, and interim periods within those years, beginning after December 15, 2012. The Company adopted this standard on January 1, 2013. The effect of adopting this standard increased our disclosure surrounding reclassification items out of accumulated other comprehensive income.
	In July 2013, the FASB amended existing guidance related to the presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss or a tax credit carryforward exists. These amendments provide that an unrecognized tax benefit, or a portion thereof, be presented in the financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except to the extent that a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date to settle any additional income taxes that would result from disallowance of a tax position, or the tax law does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, then the unrecognized tax benefit should be presented as a liability. These amendments are effective for interim and annual reporting periods beginning after December 15, 2013. Early adoption and retrospective application is permitted. The Company does not expect the impact of this amendment on the consolidated financial statements to be material.
	In July 2013, the FASB amended existing guidance related to the inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a benchmark interest rate for hedge accounting purposes These amendments permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes, in addition to UST and LIBOR. The amendments also remove the restriction on using different benchmark rates for similar hedges. The amendments apply to all entities that elect to apply hedge accounting of the benchmark interest rate. These amendments are effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The effect of adopting this standard did not have a material effect on the Company’s operating results or financial condition.

Trading_Securities_Tables

Trading Securities (Tables)	12 Months Ended
Trading Securities (Tables)	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]	'
Trading Securities Portfolio Realized and Unrealized Gains and Losses	'
	A list of the activity in this portfolio for 2013 and 2012 is summarized below.


		2013			2012
	Beginning balance	$	5,048		$	—
	Purchases		198,186			367,105
	Proceeds from sales		(203,489	)		(362,747	)
	Net realized gain on sales		255			715
	Mark to market adjustment		—			(25	)

	Ending balance	$	—		$	5,048

Investment_Securities_Availabl1

Investment Securities Available for Sale (Tables)	12 Months Ended
Investment Securities Available for Sale (Tables)	Dec. 31, 2013
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)	'
	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:


		December 31, 2013
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government agencies and government sponsored enterprises	$	4	$	—	$	—	$	4
	Mortgage backed securities		424,654		4,623		12,396		416,881
	Municipal securities		39,728		921		448		40,201

	Total	$	464,386	$	5,544	$	12,844	$	457,086

		December 31, 2012
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gains		Losses		Value
	Obligations of U.S. government agencies and government sponsored enterprises	$	7,465	$	81	$	—	$	7,546
	Mortgage backed securities		364,014		9,247		71		373,190
	Municipal securities		42,570		2,504		52		45,022

	Total	$	414,049	$	11,832	$	123	$	425,758

Schedule of Sales of Available for Sale Securities	'
	Sales of available for sale securities were as follows:


		2013		2012		2011
	Proceeds	$	69,495	$	168,809	$	173,337
	Gross gains	$	1,060	$	2,706	$	3,595
	Gross losses	$	—	$	283	$	131
Fair Value and Amortized Cost of Available for Sale Securities by Contractual Maturity	'
	The fair value and amortized cost of available for sale securities at year end 2013 by contractual maturity were as follows. Mortgage-backed securities are not due at a single maturity date and are shown separately.


		Fair		Amortized
		Value		Cost
	Investment securities available for sale
	Due in one year or less	$	—	$	—
	Due after one year through five years		1,922		1,799
	Due after five years through ten years		12,491		12,290
	Due after ten years through thirty years		25,792		25,643
	Mortgage backed securities		416,881		424,654

		$	457,086	$	464,386

Investments Gross Unrealized Losses and Fair Value	'
	The following tables show the Company’s investments’ gross unrealized losses and fair value, aggregated by investment category and length of time the individual securities have been in a continuous unrealized loss position, at December 31, 2013 and 2012.


		December 31, 2013
		Less than 12 months				12 months or more				Total
				Unrealized				Unrealized				Unrealized
		Fair Value		Losses		Fair Value		Losses		Fair Value		Losses
	Obligations of U.S. government agencies and government sponsored enterprises	$	—	$	—	$	—	$	—	$	—	$	—
	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 securities	$	247,244	$	10,554	$	19,803	$	2,290	$	267,047	$	12,844

		December 31, 2012
		Less than 12 months				12 months or more				Total
		Fair		Unrealized				Unrealized		Fair		Unrealized
		Value		Losses		Fair Value		Losses		Value		Losses
	Obligations of U.S. government agencies and government sponsored enterprises	$	—	$	—	$	—	$	—	$	—	$	—
	Mortgage backed securities		30,840		71		—		—		30,840		71
	Municipal securities		2,180		52		—		—		2,180		52

	Total temporarily impaired securities	$	33,020	$	123	$	—	$	—	$	33,020	$	123

Loans_Tables

Loans (Tables)	12 Months Ended
Loans (Tables)	Dec. 31, 2013
Receivables [Abstract]	'
Summary of Major Categories of Loans Included in Loan Portfolio	'
	Major categories of loans included in the loan portfolio as of December 31, 2013 and 2012 are:


		December 31,
		2013			2012
	Loans not covered by FDIC loss share agreements:
	Real estate:
	Residential	$	458,331		$	428,554
	Commercial		528,710			480,494
	Land, development, construction		62,503			55,474

	Total real estate		1,049,544			964,522
	Commercial		143,263			124,225
	Consumer and other loans		50,695			51,279

			1,243,502			1,140,026
	Deferred loan origination fees, net of costs		404			(458	)
	Allowance for loan losses for non covered loans		(19,694	)		(24,033	)

	Net loans not covered by FDIC loss share agreements		1,224,212			1,115,535
	Loans covered by FDIC loss share agreements:
	Real estate:
	Residential		120,030			142,480
	Commercial		100,012			134,413
	Land, development, construction		6,381			13,259

	Total real estate		226,423			290,152
	Commercial		3,850			6,143

			230,273			296,295
	Allowance for loan losses for covered loans		(760	)		(2,649	)

	Net loans covered by FDIC loss share agreements		229,513			293,646

	Total net loans	$	1,453,725		$	1,409,181

Summary of Allowance for Loan Losses	'
	Changes in the allowance for loan losses by portfolio segment for the years ended December 31, 2013, 2012 and 2011, are below. The FTB loan segment is not presented separately due to immateriality. The segment is included in the residential real estate segment in the 2012 disclosures presented below and is no longer a separate segment in 2013.


		Real Estate Loans
		Residential			Commercial			Land,develop,			Comm. &			Consumer &			Total
		Residential			Commercial			construction			Industrial			Other			Total
	Loans not covered by FDIC loss share agreements:
	Twelve months ended December 31, 2013
	Beginning of the period	$	6,831		$	8,272		$	6,211		$	1,745		$	974		$	24,033
	Charge-offs		(3,701	)		(1,144	)		(310	)		(120	)		(903	)		(6,178	)
	Recoveries		432			417			193			51			181			1,274
	Provisions		5,223			(1,104	)		(3,025	)		(1,166	)		637			565

	Balance at December 31, 2013	$	8,785		$	6,441		$	3,069		$	510		$	889		$	19,694

	Twelve months ended December 31, 2012
	Beginning of the period	$	6,700		$	8,825		$	9,098		$	1,984		$	978		$	27,585
	Charge-offs		(3,968	)		(2,862	)		(4,646	)		(231	)		(807	)		(12,514	)
	Recoveries		378			871			604			22			157			2,032
	Provisions		3,721			1,438			1,155			(30	)		646			6,930

	Balance at December 31, 2012	$	6,831		$	8,272		$	6,211		$	1,745		$	974		$	24,033

	Twelve months ended December 31, 2011
	Beginning of the period	$	7,704		$	8,587		$	6,893		$	2,182		$	901		$	26,267
	Charge-offs		(9,306	)		(11,179	)		(7,717	)		(1,971	)		(1,091	)		(31,264	)
	Charge-offs – loan sales		(3,019	)		(11,153	)		(456	)		(220	)		—			(14,848	)
	Recoveries		542			665			251			82			258			1,798
	Provisions		10,779			21,905			10,127			1,911			910			45,632

	Balance at December 31, 2011	$	6,700		$	8,825		$	9,098		$	1,984		$	978		$	27,585

	Loans covered by FDIC loss share agreements:
	Twelve months ended December 31, 2013
	Beginning of the period	$	—		$	2,335		$	—		$	314		$	—		$	2,649
	Charge-offs		—			(1,248	)		—			—			—			(1,248	)
	Recoveries		—			—			—			—			—			—
	Provisions		—			(949	)		89			219			—			(641	)

	Balance at December 31, 2013	$	—		$	138		$	89		$	533		$	—		$	760

	Twelve months ended December 31, 2012
	Beginning of the period	$	82		$	223		$	40		$	14		$	—		$	359
	Charge-offs		—			—			—			—			—			0
	Recoveries		—			—			—			—			—			0
	Provisions		(82	)		2,112			(40	)		300			—			2,290

	Balance at December 31, 2012	$	—		$	2,335		$	—		$	314		$	—		$	2,649

	Twelve months ended December 31, 2011
	Beginning of the period	$	—		$	—		$	—		$	—		$	—		$	—
	Charge-offs		—			—			(293	)		—			—			(293	)
	Recoveries		—			—			293			—			—			293
	Provisions		82			223			40			14			—			359

	Balance at December 31, 2011	$	82		$	223		$	40		$	14		$	—		$	359

Allowance for Loan Losses and Recorded Investment in Loans by Portfolio Segment and Based on Impairment Method	'
	The following table presents the balance in the allowance for loan losses and the recorded investment in loans by portfolio segment and based on impairment method as of December 31, 2013 and 2012. Accrued interest receivable and unearned fees/costs are not included in the recorded investment because they are not material.


		Real Estate Loans
	As of December 31, 2013	Residential			Commercial			Land,			Comm. &			Consumer			Total
								develop,			industrial			& other
								constr
	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
	Acquired with deteriorated credit quality		—			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
	Acquired with deteriorated credit quality		120,030			100,012			6,381			3,850			1,148			231,421

	Total ending loans balance	$	578,361		$	628,722		$	68,884		$	147,113		$	50,695		$	1,473,775


		Real Estate Loans
	As of December 31, 2012	Residential			Commercial			Land,			Comm. &			Consumer			Total
								develop,			industrial			& other
								constr
	Allowance for loan losses:
	Ending allowance balance attributable to loans:
	Individually evaluated for impairment	$	610		$	277		$	107		$	1		$	27		$	1,022
	Collectively evaluated for impairment		6,221			7,995			6,104			1,744			947			23,011
	Acquired with deteriorated credit quality		—			2,335			—			314			—			2,649

	Total ending allowance balance	$	6,831		$	10,607		$	6,211		$	2,059		$	974		$	26,682

	Loans:
	Individually evaluated for impairment		9,936			32,860			1,520			3,470			393			48,179
	Collectively evaluated for impairment		418,618			447,634			53,954			120,755			48,154			1,089,115
	Acquired with deteriorated credit quality		142,480			134,413			13,259			6,143			2,732			299,027

	Total ending loans balance:	$	571,034		$	614,907		$	68,733		$	130,368		$	51,279		$	1,436,321

Summary of Impaired Loans	'
	The following is a summary of information regarding impaired loans at December 31, 2013 and 2012:


	Individually impaired loans were as follows:	December 31,
		2013			2012
	Impaired loans with no allocated allowance for loan losses	$	14,656		$	37,435
	Impaired loans with allocated allowance for loan losses		9,454			10,744

	Total impaired loans	$	24,110		$	48,179

	Amount of the allowance for loan losses allocated to impaired loans	$	1,811		$	1,022

	Performing Trouble Debt Restructurings (TDRs)	$	10,763			8,841
	Nonperforming TDRs, included in nonperforming loans		4,684			5,819

	Total TDRs (TDRs are required to be included in impaired loans)	$	15,447		$	14,660
	Impaired loans that are not TDRs		8,663			33,519

	Total impaired loans	$	24,110		$	48,179

Schedule of Troubled Debt Restructured Loans Based on Performing and Non Performing	'

		December 31,
	Troubled debt restructured loans (“TDRs”):	2013			2012
	Performing TDRs	$	10,763		$	8,841
	Non performing TDRs		4,684			5,819

	Total TDRs	$	15,447		$	14,660

Troubled Debt Restructured Loans by Loans Type	'
	TDRs as of December 31, 2013 and 2012 quantified by loan type classified separately as accrual (performing loans) and non-accrual (nonperforming loans) are presented in the table below.


	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


	As of December 31, 2012	Accruing			Non-Accrual			Total
	Real estate loans:
	Residential	$	6,446		$	1,778		$	8,224
	Commercial		1,589			3,701			5,290
	Land, development, construction		202			231			433

	Total real estate loans		8,237			5,710			13,947
	Commercial		315			5			320
	Consumer and other		289			104			393

	Total TDRs	$	8,841		$	5,819		$	14,660

Summary of Loans by Class Modified	'
	The following table presents loans by class modified as TDRs for which there was a payment default within twelve months following the modification during the years ending December 31, 2013 and 2012.


		Year ending						Year ending
		December 31, 2013						December 31, 2012
		Number			Recorded			Number			Recorded
		of loans			investment			of loans			investment
	Residential		3		$	553			10		$	758
	Commercial real estate		6			2,244			4			2,567
	Land, development, construction		—			—			4			156
	Commercial		2			34			—			0
	Consumer and other		1			17			1			45

	Total		12		$	2,848			19		$	3,526

Summary of Loans Individually Evaluated for Impairment by Class of Loans	'
	The following table presents loans individually evaluated for impairment by class of loans as of December 31, 2013 and 2012 excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements, which are evaluated on a pool basis. The recorded investment is less than the unpaid principal balance primarily due to partial charge-offs.


	As of December 31, 2013	Unpaid			Recorded			Allowance for
		principal			investment			loan losses
		balance						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		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		102			56			2
	Consumer, other		340			327			21

	Total	$	26,882		$	24,110		$	1,811


	As of December 31, 2012	Unpaid			Recorded			Allowance for
		principal			investment			loan losses
		balance						allocated
	With no related allowance recorded:
	Residential real estate	$	1,712		$	1,712		$	—
	Commercial real estate		33,789			31,171			—
	Land, development, construction		2,042			1,087			—
	Commercial		3,556			3,465			—
	Consumer, other		—			—			—
	With an allowance recorded:
	Residential real estate		8,624			8,224			610
	Commercial real estate		1,742			1,689			277
	Land, development, construction		664			433			107
	Commercial		5			5			1
	Consumer, other		395			393			27

	Total	$	52,529		$	48,179		$	1,022

Summary of Impairment by Class of Loans	'

	December 31, 2013	Average of			Interest income			Cash basis
		impaired loans			recognized during			interest income
		during the period			impairment			recognized
	Real estate loans:
	Residential	$	8,968		$	290		$	—
	Commercial		26,060			870			—
	Land, development, construction		1,405			17			—

	Total real estate loans		36,433			1,177			—
	Commercial loans		1,878			35			—
	Consumer and other loans		363			11			—

	Total	$	38,674		$	1,223		$	—


	December 31, 2012	Average of			Interest income			Cash basis
		impaired loans			recognized during			interest income
		during the period			impairment			recognized
	Real estate loans:
	Residential	$	10,136		$	306		$	—
	Commercial		29,877			1,215			—
	Land, development, construction		3,888			23			—

	Total real estate loans		43,901			1,544			—
	Commercial loans		4,175			110			—
	Consumer and other loans		439			17			—

	Total	$	48,515		$	1,671		$	—


	December 31, 2011	Average of			Interest income			Cash basis
		impaired loans			recognized during			interest income
		during the period			impairment			recognized
	Real estate loans:
	Residential	$	13,035		$	261		$	—
	Commercial		40,403			855			—
	Land, development, construction		14,348			118			—

	Total real estate loans		67,786			1,234			—
	Commercial loans		6,144			262			—
	Consumer and other loans		572			21			—

	Total	$	74,502		$	1,517		$	—

Summary of Recorded Investment in Nonaccrual Loans and Loans Past Due Over 90 Days Still on Accrual by Class of Loans	'
	The following tables present the recorded investment in nonaccrual loans and loans past due over 90 days still on accrual by class of loans as of December 31, 2013 and 2012 excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements:


	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			30

	Total	$	27,077		$	30


	As of December 31, 2012	Nonaccrual			Loans past due
					over 90 days
					still accruing
	Residential real estate	$	9,993		$	—
	Commercial real estate		11,459			—
	Land, development, construction		2,032			—
	Commercial		1,650			—
	Consumer, other		314			293

	Total	$	25,448		$	293

Summary Aging of Recorded Investment in Past Due Loans	'
	The following tables present the aging of the recorded investment in past due loans as of December 31, 2013 and 2012, excluding loans acquired from the FDIC with evidence of credit deterioration and covered by FDIC loss share agreements:


					Accruing Loans
	As of December 31, 2013	Total			30 - 59			60 - 89			Greater			Total Past			Loans Not			Nonaccrual
					days past			days past			than 90			Due			Past Due			Loans
					due			due			days past
											due
	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		50,695			303			240			30			573			49,813			309

	Total	$	1,243,502		$	6,151		$	4,365		$	30		$	10,546		$	1,205,879		$	27,077



					Accruing Loans
	As of December 31, 2012	Total			30 - 59			60 - 89			Greater			Total Past			Loans Not			Nonaccrual
					days past			days past			than 90			Due			Past Due			Loans
					due			due			days past
											due
	Residential Real Estate	$	428,554		$	1,632		$	677		$	—		$	2,309		$	416,252		$	9,993
	Commercial Real Estate		480,494			1,663			1,147			—			2,810			466,225			11,459
	Land/Dev/Construction		55,474			115			624			—			739			52,703			2,032
	Commercial		124,225			203			416			—			619			121,956			1,650
	Consumer		51,279			456			489			293			1,238			49,727			314

	Total	$	1,140,026		$	4,069		$	3,353		$	293		$	7,715		$	1,106,863		$	25,448

Risk Category of Loans by Class of Loans, Excluding Loans Acquired from FDIC	'
	As of December 31, 2013 and 2012, and based on the most recent analysis performed, the risk category of loans by class of loans, excluding loans with evidence of deterioration of credit quality purchased from the FDIC and covered by FDIC loss share agreements, is as follows:


		As of December 31, 2013
	Loan Category	Pass			Special			Substandard			Doubtful
	Loan Category	Pass			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		49,530			562			603			—

		$	1,112,028		$	67,483		$	63,991		$	—


		As of December 31, 2012
	Loan Category	Pass			Special			Substandard			Doubtful
	Loan Category	Pass			Mention			Substandard			Doubtful
	Residential Real Estate	$	400,244		$	4,797		$	23,513		$	—
	Commercial Real Estate		394,238			44,933			41,323			—
	Land/Dev/Construction		39,650			11,994			3,830			—
	Commercial		114,067			3,978			6,180			—
	Consumer		49,894			613			772			—

		$	998,093		$	66,315		$	75,618		$	—

Investment in Residential and Consumer Loans, Excluding Loans from FDIC	'
	The following table presents the recorded investment in residential and consumer loans, excluding loans with evidence of deterioration of credit quality purchased from the FDIC and covered by FDIC loss share agreements, based on payment activity as of December 31, 2013 and 2012:


	As of December 31, 2013	Residential			Consumer
	Performing	$	448,169		$	50,356
	Nonperforming		10,162			339

	Total	$	458,331		$	50,695


	As of December 31, 2012	Residential			Consumer
	Performing	$	418,561		$	50,672
	Nonperforming		9,993			607

	Total	$	428,554		$	51,279

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 December 31, 2013 and 2012. Contractually required principal and interest payments have been adjusted for estimated prepayments.


		December 31,
		2013			2012			2011
	Contractually required principal and interest	$	389,537		$	534,989		$	291,531
	Non-accretable difference		(55,304	)		(142,855	)		(51,536	)

	Cash flows expected to be collected		334,233			392,134			239,995
	Accretable yield		(102,812	)		(93,107	)		(74,552	)

	Carrying value of acquired loans	$	231,421		$	299,027		$	165,443
	Allowance for loan losses		(760	)		(2,649	)		(385	)

	Carrying value less allowance for loan losses	$	230,661		$	296,378		$	165,058

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 period ending December 31, 2013.


		Balance at			income			all other			Balance at
		December 31, 2012			accretion			adjustments			December 31, 2013
	Contractually required principal and interest	$	534,989		$	—		$	(145,452	)	$	389,537
	Non-accretable difference		(142,855	)		—			87,551			(55,304	)

	Cash flows expected to be collected		392,134			—			(57,901	)		334,233
	Accretable yield		(93,107	)		32,725			(42,430	)		(102,812	)

	Carry value of acquired loans	$	299,027		$	32,725		$	(100,331	)	$	231,421

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	12 Months Ended
FDIC Indemnification Asset (Tables)	Dec. 31, 2013
Text Block [Abstract]	'
FDIC Loss Share Indemnification Asset	'
	The activity in the FDIC loss share indemnification asset which resulted from the July 16, 2010 acquisition of Olde Cypress Community Bank, the August 20, 2010 acquisitions of the Community National Bank of Bartow and Independent National Bank in Ocala, the January 20, 2012 acquisition of Central Florida State Bank and the January 27, 2012 acquisition of First Guaranty Bank & Trust loss share agreements is as follows:


		2013			2012
	Beginning of the year	$	119,289		$	50,642
	Effect of acquisition		—			85,088
	Discount accretion/(amortization)		(13,807	)		(3,096	)
	Indemnification revenue		6,055			4,185
	Indemnification of foreclosure expense		4,413			2,425
	Proceeds from FDIC		(42,004	)		(21,787	)
	Impairment of loan pool		(513	)		1,832

	End of the year	$	73,433		$	119,289

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	12 Months Ended
Other Real Estate Owned (Tables)	Dec. 31, 2013
Real Estate [Abstract]	'
Activity of Valuation Allowance in Other Real Estate Owned and Expense Related to Foreclosed Assets	'
	foreclosure. Activity in the valuation allowance was as follows:


		2013			2012			2011
	Beginning of year	$	5,407		$	4,680		$	2,650
	Valuation write down of repossessed real estate		6,012			4,258			6,751
	Sales and/or dispositions		(5,532	)		(3,531	)		(4,721	)

	End of year	$	5,887		$	5,407		$	4,680

	Expenses related to foreclosed real estate include:


		2013			2012			2011
	Loss on sale of repossessed real estate	$	3,122		$	1,185		$	545
	Valuation write down of repossessed real estate		6,012			4,258			6,751
	Operating expenses, net of rental income		3,191			4,008			4,268

	Total	$	12,325		$	9,451		$	11,564

Fair_value_Tables

Fair value (Tables)	12 Months Ended
Fair value (Tables)	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Assets and Liabilities Measured at Fair Value on Recurring Basis	'
	Assets and liabilities measured at fair value on a recurring basis are summarized below.


				Fair value measurements using
		Carrying		Quoted prices in		Significant		Significant
		value		active markets for		other		unobservable
				identical assets		observable		inputs
				(Level 1)		inputs		(Level 3)
						(Level 2)
	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		—
	at December 31, 2012
	Assets:
	Trading securities	$	5,048		—	$	5,048		—
	Available for sale securities
	U.S. government sponsored entities and agencies		7,546		—		7,546		—
	Mortgage backed securities		373,190		—		373,190		—
	Municipal securities		45,022		—		45,022		—
	Interest rate swap derivatives		1,131		—		1,131		—
	Liabilities:
	Interest rate swap derivatives		2,014		—		2,014		—
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
		Carrying		Quoted prices in		Significant		Significant
		value		active markets for		other		unobservable
				identical assets		observable		inputs
				(Level 1)		inputs		(Level 3)
						(Level 2)
	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 owned real estate held for sale		1,582		—		—		1,582
	at December 31, 2012
	Assets:
	Impaired loans
	Residential real estate	$	837		—		—	$	837
	Commercial real estate		8,379		—		—		8,379
	Land, land development and construction		1,103		—		—		1,103
	Commercial		905		—		—		905
	Consumer		84		—		—		84
	Other real estate owned
	Residential real estate	$	582		—		—	$	582
	Commercial real estate		5,933		—		—		5,933
	Land, land development and construction		4,445		—		—		4,445
	Bank owned real estate held for sale		2,482		—		—		2,482
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 December 31, 2013	Carrying amount		Level 1		Level 2		Level 3		Total
	Financial assets:
	Cash and cash equivalents	$	174,889	$	174,889	$	—	$	—	$	174,889
	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		73,433		—		—		—		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 (correspondent bank deposits)		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


				Fair value measurements
	at December 31, 2012	Carrying amount		Level 1		Level 2		Level 3		Total
	Financial assets:
	Cash and cash equivalents	$	136,748	$	136,748	$	—	$	—	$	136,748
	Trading securities		5,048		—		5,048		—		5,048
	Investment securities available for sale		425,758		—		425,758		—		425,758
	FHLB and FRB stock		9,749		—		—		—		n/a
	Loans held for sale		2,709		—		2,709		—		2,709
	Loans, less allowance for loan losses of $26,682		1,409,181		—		—		1,324,630		1,324,630
	FDIC indemnification asset		119,289		—		—		—		n/a
	Interest rate swap derivatives		1,131		—		1,131		—		1,131
	Accrued interest receivable		6,100		—		—		6,100		6,100
	Financial liabilities:
	Deposits- without stated maturities	$	1,521,928	$	1,521,928	$	—	$	—	$	1,521,928
	Deposits- with stated maturities		475,304		—		483,220		—		483,220
	Securities sold under agreement to repurchase		18,792		—		18,792		—		18,792
	Federal funds purchased (correspondent bank deposits)		38,932		—		38,932		—		38,932
	Corporate debentures		16,970		—		—		8,477		8,477
	Interest rate swap derivatives		2,014		—		2,014		—		2,014
	Accrued interest payable		579		—		579		—		579

Bank_Premises_and_Equipment_Ta

Bank Premises and Equipment (Tables)	12 Months Ended
Bank Premises and Equipment (Tables)	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
Summary of Bank Premises and Equipment	'
	A summary of bank premises and equipment as of December 31, 2013 and 2012 is as follows:


		December 31,
		2013		2012
	Land	$	32,591	$	32,642
	Land improvements		864		823
	Buildings		56,651		55,065
	Leasehold improvements		2,450		2,867
	Furniture, fixtures and equipment		26,749		26,278
	Construction in progress		5,828		5,832

			125,133		123,507
	Less: Accumulated depreciation		28,514		25,553

		$	96,619	$	97,954

Minimum Future Contractual Annual Rentals	'
	The Company leases land and certain facilities under noncancellable operating leases. The following is a schedule of future minimum annual rentals under the noncancellable operating leases:


	Year ending December 31,
	2014	$	1,586
	2015		926
	2016		746
	2017		739
	2018		716
	Thereafter		1,731

		$	6,444

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Change in Balance for Goodwill	'
	The change in balance for goodwill during the years 2013, 2012 and 2011 is as follows:


		2013			2012			2011
	Beginning of year	$	44,924		$	38,035		$	38,035
	Acquired goodwill		—			6,889			—
	Impairment		—			—			—

	End of year	$	44,924		$	44,924		$	38,035

Acquired Intangible Assets for Core Deposit Intangibles and Trust	'
	The change in balance for CDI and the Trust during the years 2013, 2012 and 2011 is as follows:


		2013			2012			2011
	Beginning of year	$	7,307		$	5,203		$	3,921
	Acquired CDI		—			1,896			2,086
	Acquired Trust		—			1,580			—
	Amortization expense		(1,191	)		(1,372	)		(804	)
	Impairment expense		—			—			—

	End of year	$	6,116		$	7,307		$	5,203

Schedule of Acquired Intangible Assets	'
	Acquired intangible assets were as follows for years ended December 31, 2013 and 2012:


		December 31, 2013						December 31, 2012
		Gross						Gross
		Carrying			Accumulated			Carrying			Accumulated
		Amount			Amortization			Amount			Amortization
	Amortized intangible assets:
	Core deposit intangibles	$	11,607		$	6,649		$	11,607		$	5,663
	Trust intangible		1,580			422			1,580			217

	Total acquired intangibles	$	13,187		$	7,071		$	13,187		$	5,880

Estimated Amortization Expense	'
	Estimated amortization expense for each of the next five years:


	2014	$	1,061
	2015		977
	2016		950
	2017		754
	2018		700

Deposits_Tables

Deposits (Tables)	12 Months Ended
Deposits (Tables)	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Summary of Deposits	'
	A detail of deposits at December 31, 2013 and 2012 is as follows:


		December 31,
				Weighted					Weighted
				Average					Average
				Interest					Interest
		2013		Rate			2012		Rate
	Non-interest bearing deposits	$	644,915		—	%	$	519,510		—	%
	Interest bearing deposits:
	Interest bearing demand deposits		483,842		0.1	%		452,961		0.1	%
	Savings deposits		232,942		0.1	%		238,216		0.1	%
	Money market accounts		309,657		0.2	%		311,241		0.1	%
	Time deposits less than $100,000		181,635		0.8	%		229,598		1.3	%
	Time deposits of $100,000 or greater		203,240		1.2	%		245,706		1.5	%

		$	2,056,231		0.2	%	$	1,997,232		0.4	%

Summary of Certificate Accounts	'
	The following table presents the amount of certificate accounts at December 31, 2013, maturing during the periods reflected below:


	Year	Amount
	2014	$	236,511
	2015		107,073
	2016		20,422
	2017		9,209
	2018		11,660
	Thereafter		—

	Total	$	384,875

Securities_Sold_Under_Agreemen1

Securities Sold Under Agreements to Repurchase (Tables)	12 Months Ended
Securities Sold Under Agreements to Repurchase (Tables)	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Summary of Repurchase Agreement	'
	Information concerning repurchase agreements is summarized as follows:


		2013			2012			2011
	Average daily balance during the year	$	21,693		$	21,388		$	15,949
	Average interest rate during the year		0.36	%		0.4	%		0.53	%
	Maximum month-end balance during the year	$	24,483		$	24,989		$	18,652
	Weighted average interest rate at year end		0.4	%		0.4	%		0.47	%

Federal_Funds_Purchased_Tables

Federal Funds Purchased (Tables)	12 Months Ended
Federal Funds Purchased (Tables)	Dec. 31, 2013
Text Block [Abstract]	'
Federal Funds Purchased, Overnight Deposits from Correspondent Banks	'
	Federal funds purchased, as listed below, are overnight deposits from correspondent banks. Information concerning these deposits is summarized as follows:


		2013			2012			2011
	Average daily balance during the year	$	37,958		$	53,803		$	70,940
	Average interest rate during the period		0.05	%		0.05	%		0.07	%
	Maximum month-end balance during the year	$	53,274		$	82,473		$	92,111
	Weighted average interest rate at year end		0.05	%		0.05	%		0.05	%

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Allocation of Federal and State Income Tax Expense (Benefit) Between Current and Deferred Portions	'
	Allocation of federal and state income tax expense (benefit) between current and deferred portions for the years ended December 31, 2013, 2012 and 2011, is as follows:


		Current			Deferred			Total
	December 31, 2013:
	Federal	$	4,423		$	27		$	4,450
	State		1,055			5			1,060

		$	5,478		$	32		$	5,510

	December 31, 2012:
	Federal	$	(32	)	$	3,761		$	3,729
	State		271			625			896

		$	239		$	4,386		$	4,625

	December 31, 2011:
	Federal	$	(169	)	$	2,818		$	2,649
	State		288			482			770

		$	119		$	3,300		$	3,419

Components of Deferred Tax Assets and Deferred Tax Liabilities	'
	The tax effect of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities at December 31, 2013 and 2012, are presented below:


		December 31,
		2013			2012
	Deferred tax assets:
	Allowance for loan losses	$	7,890		$	9,975
	Deferred loan fees, net		—			172
	Stock based compensation		469			440
	Deferred compensation		2,598			1,705
	Impairment expenses		403			459
	Net operating loss carryforward		—			8,968
	Other real estate owned expenses		3,074			2,678
	Nonaccrual interest		560			629
	Unrealized loss on investment securities available for sale		2,816			—
	Other		1,007			883

	Total deferred tax assets		18,817			25,909

	Deferred tax liabilities:
	Premises and equipment, due to differences in depreciation methods and useful lives		(4,096	)		(4,840	)
	Deferred loan costs, net		(156	)		—
	Fair value adjustments		(8,937	)		(18,233	)
	Like kind exchange		(300	)		(293	)
	Unrealized gain on investment securities available for sale		—			(4,404	)
	Accretion of discounts on investments		(32	)		(31	)

	Total deferred tax liabilities		(13,521	)		(27,801	)

	Net deferred tax (liability) asset	$	5,296		$	(1,892	)

Reconciliation Between the Actual Tax Expense and the Expected Tax (Benefit) Expense	'
	A reconciliation between the actual tax expense and the “expected” tax (benefit) expense, computed by applying the U.S. federal corporate rate of 35 percent (34 percent for 2012 and 2011) is as follows:


		December 31,
		2013			2012			2011
	“Expected” tax (benefit) expense	$	6,214		$	4,940		$	3,851
	Tax exempt interest, net		(907	)		(925	)		(856	)
	Bank owned life insurance		(391	)		(412	)		(329	)
	State income taxes, net of federal income tax benefits		689			591			508
	Stock based compensation		100			104			111
	Other, net		(195	)		327			134

		$	5,510		$	4,625		$	3,419

RelatedParty_Transactions_Tabl

Related-Party Transactions (Tables)	12 Months Ended
Related-Party Transactions (Tables)	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Summary Loans to Principal Officers, Directors and Their Affiliates	'
	Loans to principal officers, directors, and their affiliates during 2013 and 2012 were as follows:


		2013			2012
	Beginning balance	$	3,957		$	22,941
	New loans		2,354			2,382
	Effect of changes in composition of related parties		—			(18,870	)
	Repayments		(3,050	)		(2,496	)

	Ending balance	$	3,261		$	3,957

Regulatory_Capital_Matters_Tab

Regulatory Capital Matters (Tables)	12 Months Ended
Regulatory Capital Matters (Tables)	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Summary of Actual, Required, and Capital Levels Necessary for Capital Adequacy Purposes	'
	A summary of actual, required, and capital levels necessary for capital adequacy purposes for the Company as of December 31, 2013 and 2012, are presented in the table below. There is no threshold for “well-capitalized” status for bank holding companies.


		Actual					For capital					To be well
							adequacy purposes					capitalized
												under Prompt
												corrective action
												provision
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	December 31, 2013:
	Total capital (to risk weighted assets)	$	262,701		17.9	%	$	117,450		>8	%		n/a		n/a
	Tier 1 capital (to risk weighted assets)		244,323		16.6	%		58,725		>4	%		n/a		n/a
	Tier 1 capital (to average assets)		244,323		10.4	%		94,182		>4	%		n/a		n/a
	December 31, 2012:
	Total capital (to risk weighted assets)	$	249,016		17.9	%	$	111,360		>8	%		n/a		n/a
	Tier 1 capital (to risk weighted assets)		231,501		16.6	%		55,680		>4	%		n/a		n/a
	Tier 1 capital (to average assets)		231,501		9.9	%		93,432		>4	%		n/a		n/a
	A summary of actual, required, and capital levels necessary for capital adequacy purposes in the case of the Company’s subsidiary bank as of December 31, 2013 and 2012, are presented in the table below.


		Actual					For capital					To be well
							adequacy purposes					capitalized under
												prompt corrective
												action provision
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	31-Dec-13
	CenterState Bank of Florida, N.A.
	Total capital (to risk weighted assets)	$	213,744		14.6	%	$	117,021		>8	%	$	146,277		>10	%
	Tier 1 capital (to risk weighted assets)		195,434		13.4	%		58,511		>4	%		87,766		>6	%
	Tier 1 capital (to average assets)		195,434		8.3	%		93,955		>4	%		117,444		>5	%

							For capital					To be well
												capitalized under
												prompt corrective
		Actual					adequacy purposes					action provision
		Amount		Ratio			Amount		Ratio			Amount		Ratio
	31-Dec-12
	CenterState Bank of Florida, N.A.
	Total capital (to risk weighted assets)	$	230,590		16.6	%	$	110,824		>8	%	$	138,530		>10	%
	Tier 1 capital (to risk weighted assets)		213,161		15.4	%		55,412		>4	%		83,118		>6	%
	Tier 1 capital (to average assets)		213,161		9.2	%		92,632		>4	%		115,789		>5	%

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
Stock-Based Compensation (Tables)	Dec. 31, 2013
Summary of Stock Based Compensation Expense Recognized	'
	During the twelve month period ended December 31, 2013, 2012 and 2011, the Company recognized total stock-based compensation expense as listed in the table below.


		2013			2012			2011
	Stock option expense	$	292		$	363		$	398
	RSA expense		317			268			307

	Total stock-based compensation expense	$	609		$	631		$	705

Summary of Estimated Fair Value of Options Granted Weighted-Average Assumptions	'
	The estimated fair value of options granted during these periods were calculated as of the grant date using the Black-Scholes option-pricing model. The weighted-average assumptions as of the grant date are as follows:


		2013			2012			2011
	Expected option life		7.7 years			7.7 years			7.7 years
	Risk-free interest rate		1.91	%		1.08	%		1.6	%
	Expected volatility		44.5	%		44.3	%		42.8	%
	Dividend yield		0.39	%		0.62	%		0.69	%
Information Related to Stock Option Activity	'
	The table below present’s information related to stock option activity for the years ended December 31, 2013, 2012 and 2011:


		2013			2012			2011
	Total intrinsic value of stock options exercised	$	2		$	—		$	13
	Cash received from stock options exercised		—			—			38
	Gross income tax benefit from the exercise of stock options		—			—			—
Summary of Stock Option Activity	'
	A summary of stock option activity for the years ended December 31, 2013, 2012 and 2011 is as follows:


		December 31, 2013						December 31, 2012					December 31, 2011
					Weighted-						Weighted-					Weighted-
					Average						Average					Average
		Number of			Exercise			Number of			Exercise		Number of			Exercise
		Options			Price			Options			Price		Options			Price
	Options outstanding, beginning of period		1,158,646		$	13.64			1,128,304		$	14.03		1,265,054		$	13.59
	Options granted		3,000		$	10.22			57,500		$	6.87		4,000		$	5.78
	Options exercised		(1,714	)	$	8.9			—			—		(14,903	)	$	6.41
	Options forfeited		(86,216	)	$	11.22			(27,158	)	$	15.33		(125,847	)	$	10.26

	Options outstanding, end of period		1,073,716		$	13.83			1,158,646		$	13.64		1,128,304		$	14.03



					Weighted-			Weighted-
					Average			Average			Aggregate
		Number of			Exercise			Contractual			Intrinsic
		Options			Price			Term			Value
	Options outstanding, December 31, 2013		1,073,716		$	13.83			3.7 years		$	268
	Options fully vested and expected to vest, December 31, 2013		1,003,477		$	13.95			3.7 years		$	250
	Options exercisable, December 31, 2013		701,156		$	14.68			2.9 years		$	39
Restricted Stock [Member]	'
Summary of Restricted Stock Awards Activity	'
	A summary of restricted stock awards (“RSAs”) activity for the years ended December 31, 2013, 2012 and 2011 is as follows:


		31-Dec-13						31-Dec-12					31-Dec-11
		Number			Weighted-			Number			Weighted-		Number			Weighted-
		of RSAs			Average			of RSAs			Average		of RSAs			Average
					Grant date						Grant date					Grant date
					Stock price						Stock price					Stock price
	RSAs outstanding, beginning of period		209,384		$	9.62			179,152		$	10.53		197,210		$	11.01
	RSAs granted		59,500		$	10.22			54,500		$	6.87		18,500		$	5.78
	RSAs vested		(28,543	)	$	9.66			(24,268	)	$	10.19		(35,835	)	$	10.75
	RSAs forfeited		—			—			—			—		(723	)	$	10.36

	RSAs outstanding, end of period		240,341		$	9.76			209,384		$	9.62		179,152		$	10.53

Parent_Company_Only_Financial_1

Parent Company Only Financial Statements (Tables)	12 Months Ended
Parent Company Only Financial Statements (Tables)	Dec. 31, 2013
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]	'
Condensed Balance Sheet	'
	Condensed financial statements of CenterState Banks, Inc. (parent company only) follow:


	Condensed Balance Sheet
	December 31, 2013 and 2012
		2013			2012
	Assets:
	Cash and due from banks	$	966		$	270
	Inter-company receivable from bank subsidiary		45,703			2,000
	Investment in wholly-owned bank subsidiary		241,990			272,691
	Investment in other wholly-owned subsidiary		2,322			13,945
	Prepaid expenses and other assets		3,995			5,838

	Total assets	$	294,976		$	294,744

	Liabilities:
	Accounts payable and accrued expenses	$	4,601		$	4,243
	Corporate debenture		16,996			16,970

	Total liabilities		21,597			21,213
	Stockholders’ Equity:
	Common stock		301			301
	Additional paid-in capital		229,544			228,952
	Retained earnings		48,018			36,979
	Accumulated other comprehensive income		(4,484	)		7,299

	Total stockholders’ equity		273,379			273,531

	Total liabilities and stockholders’ equity	$	294,976		$	294,744

Condensed Statements of Operations	'

	Condensed Statements of Operations
	Years ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Dividend income	$	45,725		$	12,282		$	18,789
	Other income		—			5			559
	Interest expense		(602	)		(835	)		(448	)
	Operating expenses		(3,538	)		(3,142	)		(3,480	)

	Income before equity in net earnings of subsidiaries		41,585			8,310			15,420
	Equity in undistributed (losses) income in subsidiaries		(31,040	)		147			(8,660	)

	Net income before income tax benefit		10,545			8,457			6,760
	Income tax benefit		(1,697	)		(1,448	)		(1,149	)

	Net income	$	12,243		$	9,905		$	7,909

Condensed Statements of Cash Flows	'

	Condensed Statements of Cash Flows
	Years ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Cash flows from operating activities:
	Net income	$	12,243		$	9,905		$	7,909
	Adjustments to reconcile net income to net cash used in operating activities:
	Equity in net earnings of subsidiaries		(14,686	)		(12,429	)		(10,129	)
	Increase in payables and accrued expenses		371			893			466
	Decrease (increase) in other assets		1,843			(1,164	)		(837	)
	Stock based compensation expense		107			142			203

	Net cash flows used in operating activities		(122	)		(2,653	)		(2,388	)

	Cash flows from investing activities:
	Inter-company receivables from subsidiary banks		(43,703	)		17,000			(3,550	)
	Net cash from bank acquisition		—			—			5,020
	Cash payments to VSB shareholders		—			—			(151	)
	Investment in subsidiaries		—			(28,000	)		(14,450	)
	Dividends from bank subsidiaries		34,000			10,000			1,170
	Dividends from nonbank subsidiary		11,725			2,282			17,619

	Net cash flows provided by investing activities		2,022			1,282			5,658

	Cash flows from financing activities:
	Stock options exercised, net of tax benefit		—			—			96
	Dividends paid to shareholders		(1,204	)		(1,203	)		(1,201	)

	Net cash flows used in financing activities		(1,204	)		(1,203	)		(1,105	)

	Net increase (decrease) in cash and cash equivalents		696			(2,574	)		2,165
	Cash and cash equivalents at beginning of year		270			2,844			679

	Cash and cash equivalents at end of year	$	966		$	270		$	2,844

Credit_Commitments_Tables

Credit Commitments (Tables)	12 Months Ended
Credit Commitments (Tables)	Dec. 31, 2013
Text Block [Abstract]	'
Summary of Credit Commitments	'
	A summary of commitments to extend credit and standby letters of credit written at December 31, 2013 and 2012, are as follows:


		December 31,
		2013		2012
	Standby letters of credit	$	6,769	$	2,885
	Available lines of credit		143,199		108,525
	Unfunded loan commitments – fixed		9,004		14,509
	Unfunded loan commitments – variable		14,179		32,298

Basic_and_Diluted_Earnings_Per1

Basic and Diluted Earnings Per Share (Tables)	12 Months Ended
Basic and Diluted Earnings Per Share (Tables)	Dec. 31, 2013
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.


		2013		2012		2011
	Numerator for basic and diluted earnings per share:
	Net income	$	12,243	$	9,905	$	7,909

	Net income available for common shareholders	$	12,243	$	9,905	$	7,909

	Denominator:
	Denominator for basic earnings per share
	- weighted-average shares		30,102,777		30,073,959		30,034,573
	Effect of dilutive securities:
	Employee stock based compensation awards		117,350		67,904		4,614
	Denominator for diluted earnings per share

	- adjusted weighted-average shares		30,220,127		30,141,863		30,039,187

	Basic earnings per share	$	0.41	$	0.33	$	0.26
	Diluted earnings per share	$	0.41	$	0.33	$	0.26

Reportable_Segments_Tables

Reportable Segments (Tables)	12 Months Ended
Reportable Segments (Tables)	Dec. 31, 2013
Segment Reporting [Abstract]	'
Reconciliation of Reportable Segment Revenues, Expenses and Profit	'
	The tables below are reconciliations of the reportable segment revenues, expenses, and profit as viewed by management to the Company’s consolidated total for the year ending December 31, 2013, 2012 and 2011.


			Year ending December 31, 2013
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	97,504			$	2,874			$	—							$	100,378
	Interest expense			(5,263	)			(20	)			(602	)							(5,885	)

	Net interest income			92,241				2,854				(602	)							94,493
	Provision for loan losses			76				—				—								76
	Other non interest income			13,536				20,410				—								33,946
	Other non interest expense			(86,726	)			(20,498	)			(3,538	)							(110,762	)

	Net income (loss) before taxes			19,127				2,766				(4,140	)							17,753
	Income tax (provision) benefit			(6,140	)			(1,067	)			1,697								(5,510	)

	Net income (loss)		$	12,987			$	1,699			$	(2,443	)						$	12,243

	Total assets		$	2,278,777			$	132,821			$	294,976			($	291,007	)		$	2,415,567



			Year ending December 31, 2012
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	90,899			$	4,051											$	94,950
	Interest expense			(7,617	)			(28	)			(836	)							(8,481	)

	Net interest income			83,282				4,023				(836	)							86,469
	Provision for loan losses			(9,220	)			—												(9,220	)
	Other non interest income			23,550				35,707				4								59,261
	Other non interest expense			(90,671	)			(28,168	)			(3,141	)							(121,980	)

	Net income (loss) before taxes			6,941				11,562				(3,973	)							14,530
	Income tax (provision) benefit			(1,722	)			(4,351	)			1,448								(4,625	)

	Net income (loss)		$	5,219			$	7,211			($	2,525	)						$	9,905

	Total assets		$	2,204,176			$	153,289			$	294,744			($	288,969	)		$	2,363,240



			Year ending December 31, 2011
							Correspondent				Corporate
			Commercial				banking and				overhead
			and retail				bond sales				and				Elimination
			banking				division				administration				entries				Total
	Interest income		$	78,373			$	3,870			$	—							$	82,243
	Interest expense			(11,711	)			(48	)			(448	)							(12,207	)

	Net interest income			66,662				3,822				(448	)							70,036
	Provision for loan losses			(45,985	)			(6	)			0								(45,991	)
	Other non interest income			74,347				27,066				559								101,972
	Other non interest expense			(87,327	)			(23,883	)			(3,479	)							(114,689	)

	Net (loss) income before taxes			7,697				6,999				(3,368	)							11,328
	Income tax benefit (provision)			(2,021	)			(2,633	)			1,235								(3,419	)

Net (loss) income		$	5,676			$	4,366			($	2,133	)						$	7,909

Total assets		$	2,115,552			$	164,660			$	282,954			($	278,707	)		$	2,284,459

Business_Combinations_Tables

Business Combinations (Tables)	12 Months Ended
Business Combinations (Tables)	Dec. 31, 2013
Business Combinations [Abstract]	'
Fair Values of the Assets Acquired and Liabilities Assumed at the Date of Acquisition	'
	The following table summarizes the fair values of the assets acquired and liabilities assumed at the date of acquisition.


	Acquired institution Date of acquisition	Central FL			FGB
	Acquired institution Date of acquisition	Jan 20, 2012			Jan 27, 2012
	Assets:
	Cash due from banks, Federal Reserve Bank (“FRB”) and Federal Home Loan Bank (“FHLB”)	$	4,870		$	77,642
	Federal funds sold		8,550			—
	Securities available for sale		1,942			3,500
	Loans covered by FDIC loss share agreements		31,376			181,882
	Loans not covered by FDIC loss share agreements		239			961
	Covered repossessed real estate owned (“OREO”)		2,347			15,318
	FDIC indemnification asset		15,018			70,070
	FHLB stock and FRB stock		168			1,627
	Goodwill		—			6,890
	Core deposit intangible		375			1,521
	Trust intangible		—			1,580
	Other assets		1,109			2,742

	Total assets acquired	$	65,994		$	363,733

	Liabilities:
	Deposits	$	65,209		$	353,099
	FHLB advances		—			10,060
	Other liabilities		332			574

	Total liabilities assumed	$	65,541		$	363,733

	Net assets acquired (bargain purchase gain)	$	453

	Deferred tax impact		(170	)

	Net assets acquired, including deferred tax impact	$	283

Contractually Required Principal and Interest Cash Payments, Management's Estimates of Expected Total Cash Payments	'
	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 the respective acquisition dates. Contractually required principal and interest payments have been adjusted for estimated prepayments.


		at acquisition dates
		Type A			Type B
		loans			loans			Total
	Contractually required principal and interest	$	118,393		$	244,737		$	363,130
	Non-accretable difference		(57,632	)		(57,533	)		(115,165	)

	Cash flows expected to be collected		60,761			187,204			247,965
	Accretable yield		(2,950	)		(30,557	)		(33,507	)

	Total acquired loans	$	57,811		$	156,647		$	214,458

Schedule of Measurement Period Adjustments	'
	Based on appraisals received subsequent to the acquisition date, the Company adjusted its initial fair value estimates of certain non-performing loans acquired.


					measurement
		Jan 27, 2012			period			Jan 27, 2012
		(as initially reported)			adjustments			(as adjusted)
	Assets:
	Cash due from banks, Federal Reserve Bank and
	Federal Home Loan Bank	$	77,642		$	—		$	77,642
	Securities available for sale		3,500						3,500
	Loans covered by FDIC loss share agreements		171,949			9,933			181,882
	Loans not covered by FDIC loss share agreements		961						961
	Covered repossessed real estate owned		15,318						15,318
	FDIC indemnification asset		78,148			(8,078	)		70,070
	FHLB stock		1,627						1,627
	Goodwill		8,745			(1,855	)		6,890
	Core deposit intangible		1,521						1,521
	Trust intangible		1,580						1,580
	Other assets		2,742						2,742

	Total assets acquired	$	363,733		$	—		$	363,733

	Liabilities:
	Deposits	$	353,099		$	—		$	353,099
	FHLB advances		10,060						10,060
	Other liabilities		574						574

	Total liabilities assumed	$	363,733		$	—		$	363,733

Derivatives_Tables

Derivatives (Tables)	12 Months Ended
Derivatives (Tables)	Dec. 31, 2013
Derivative Instruments And Hedging Activities Disclosure [Abstract]	'
Summary Information about the Derivative Instruments	'
	Summary information about the derivative instruments is as follows:


		2013			2012
	Notional amount	$	91,058		$	25,133
	Weighted average pay rate on interest-rate swaps		4.34	%		5.03	%
	Weighted average receive rate on interest rate swaps		1.71	%		2	%
	Weighted average maturity (years)		10			12
	Fair value of interest rate swap derivatives (asset)	$	2,603		$	1,131
	Fair value of interest rate swap derivatives (liability)	$	2,496		$	2,014

Subsequent_Events_Tables

Subsequent Events (Tables) (Gulfstream Bancshares, Inc. [Member])	12 Months Ended
	Dec. 31, 2013
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 converted to Gulfstream common shares upon the change in control		155,629

	Total Gulfstream common shares including converted preferred shares		1,724,993
	Per share exchange ratio		3.012

	Number of shares of CenterState common stock - as converted		5,195,679
	Multiplied by CenterState common stock price on January 16, 2014	$	10.23

	Fair value of CenterState common stock issued	$	53,152

	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	$	25,271

	Total Stock Consideration	$	53,152
	Total Cash Consideration		25,271

	Total consideration paid to Gulfstream common shareholders	$	78,423
	Fair value of current Gulfstream stock options converted to CenterState stock options		3,617

	Total purchase price	$	82,040

Summary of Preliminary Estimates of Fair Value of Assets Purchased, Excluding Goodwill and Liabilities Assumed	'
	The list below summarizes the preliminary estimates of the fair value of the assets purchased , excluding goodwill, and liabilities assumed as of the January 17, 2014 purchase date.


		Fair Value
		at Jan 17, 2014
	Cash and cash items	$	102,278
	Loans		329,515
	Purchased credit impaired loans		30,068
	Loan 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 real estate owned		3,365
	Core deposit intangible		4,173
	Deferred income tax asset, net		6,908
	Other assets		4,094

	Total assets acquired	$	554,156

	Deposits	$	478,999
	Federal Home loan advances		5,708
	Repurchase agreements		7,576
	Interest payable		125
	Official checks outstanding		826
	Trust Preferred Security		6,745
	Other liabilities		3,241

	Total liabilities assumed	$	503,220

	Net assets acquired, excluding goodwill	$	50,936

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

Information with Respect to Fair Value of Acquired Loans and their 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		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

Pro-Forma Financial Information Includes Adjustments for Interest Income on Loans Acquired, Amortization of Intangibles	'
	The following table presents pro-forma information as if the acquisition had occurred at the beginning of 2011. The pro-forma information includes adjustments for interest income on loans acquired, amortization of intangibles arising from the transaction, interest expense on deposits acquired, interest expense on trust preferred securities assumed, effect of redeeming preferred stock, and the related income tax effects. The pro-forma financial information is not necessarily indicative of the results of operations that would have occurred had the transactions been effected on the assumed dates.


		2013			2012
	Net interest income	$	113,450		$	107,448

	Net income available to common shareholders	$	16,377		$	15,060

	EPS- basic	$	0.46		$	0.43
	EPS- diluted	$	0.46		$	0.43

Summary_of_Significant_Account2

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jan. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
	Bank	Pools	Bank	Bank
		Segments
		County
		Location
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Number of service banking locations	'	55	'	'
Number of counties	'	18	'	'
Interest bearing deposits in other financial institutions, Maximum maturity period	'	'1 year	'	'
Loans maximum value to be monitored by payment history for nonaccrual status	'	$500	'	'
Loans minimum value of commercial, land, development and construction loans to be monitored for nonaccrual status	'	500	'	'
Non real estate consumer loans typically charged off	'	'120 days	'	'
Number of pools of loans with common risk characteristics for each FDIC failed institution acquired	'	10	'	'
Loans individually evaluated for impairment	'	24,110	48,179	'
Number of loan portfolio segments	'	6	'	'
Period for past due of loans	'	'30 days	'	'
Period of option to put back any loan that became past due by more than 30 days or adversely classified	'	'1 year	'	'
Number of remaining loan portfolio segments	'	5	'	'
Number of failed banks acquired	2	'	2	3
Tax benefit likelihood percentage	'	50.00%	'	'
Core Deposits [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Useful life of intangible assets	'	'10 years	'	'
Buildings [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Useful life of assets	'	'39 years	'	'
Minimum [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Loans individually evaluated for impairment	'	$500	'	'
Majority loans terms	'	'3 years	'	'
Useful life of intangible assets	'	'3 years	'	'
Range of discount rates	'	'	'	1.21%
Minimum [Member] \| Furniture, Fixtures and Equipment [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Useful life of assets	'	'3 years	'	'
Maximum [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Majority loans terms	'	'5 years	'	'
Useful life of intangible assets	'	'5 years	'	'
Range of discount rates	'	'	'	4.53%
Maximum [Member] \| Furniture, Fixtures and Equipment [Member]	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Useful life of assets	'	'15 years	'	'

Trading_Securities_Trading_Sec

Trading Securities - Trading Securities Portfolio Realized and Unrealized Gains and Losses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Investments Debt And Equity Securities [Abstract]	'	'
Beginning balance	$5,048	'
Purchases	198,186	367,105
Proceeds from sales	-203,489	-362,747
Net realized gain on sales	255	715
Mark to market adjustment	'	-25
Ending balance	'	$5,048

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 $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	$464,386	$414,049
Gross Unrealized Gains	5,544	11,832
Gross Unrealized Losses	12,844	123
Fair Value	457,086	425,758
Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	4	7,465
Gross Unrealized Gains	'	81
Fair Value	4	7,546
Mortgage Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	424,654	364,014
Gross Unrealized Gains	4,623	9,247
Gross Unrealized Losses	12,396	71
Fair Value	416,881	373,190
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized Cost	39,728	42,570
Gross Unrealized Gains	921	2,504
Gross Unrealized Losses	448	52
Fair Value	$40,201	$45,022

Investment_Securities_Availabl3

Investment Securities Available for Sale - Schedule of Sales of Available for Sale Securities (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments Debt And Equity Securities [Abstract]	'	'	'
Proceeds	$69,495	$168,809	$173,337
Gross gains	1,060	2,706	3,595
Gross losses	'	$283	$131

Investment_Securities_Availabl4

Investment Securities Available for Sale - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Security	Security	Dec. 31, 2011
Investments Debt And Equity Securities [Abstract]	'	'	'
Tax provision related to net realized gains	$409	$912	$1,303
Securities estimated fair value	$108,528	$108,737	'
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_Availabl5

Investment Securities Available for Sale - Fair Value and Amortized Cost of Available for Sale Securities by Contractual Maturity (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Investments Debt And Equity Securities [Abstract]	'	'
Investment securities available for sale, Due in one year or less, Fair Value	'	'
Investment securities available for sale, Due after one year through five years, Fair Value	1,922	'
Investment securities available for sale, Due after five years through ten years, Fair Value	12,491	'
Investment securities available for sale, Due after ten years through thirty years, Fair Value	25,792	'
Investment securities available for sale, Mortgage backed securities, Fair Value	416,881	'
Fair Value	457,086	425,758
Investment securities available for sale, Due in one year or less, Amortized Cost	'	'
Investment securities available for sale, Due after one year through five years, Amortized Cost	1,799	'
Investment securities available for sale, Due after five years through ten years, Amortized Cost	12,290	'
Investment securities available for sale, Due after ten years through thirty years, Amortized Cost	25,643	'
Investment securities available for sale, Mortgage backed securities, Amortized Cost	424,654	'
Amortized Cost	$464,386	$414,049

Investment_Securities_Availabl6

Investment Securities Available for Sale - Investments Gross Unrealized Losses and Fair Value (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	'	'
Less than 12 months, Unrealized Losses	'	'
12 months or more, Fair Value	'	'
12 months or more, Unrealized Losses	'	'
Total, Fair Value	'	'
Total, Unrealized Losses	'	'
Mortgage Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	239,641	30,840
Less than 12 months, Unrealized Losses	10,221	71
12 months or more, Fair Value	18,793	'
12 months or more, Unrealized Losses	2,175	'
Total, Fair Value	258,434	30,840
Total, Unrealized Losses	12,396	71
Municipal Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	7,603	2,180
Less than 12 months, Unrealized Losses	333	52
12 months or more, Fair Value	1,010	'
12 months or more, Unrealized Losses	115	'
Total, Fair Value	8,613	2,180
Total, Unrealized Losses	448	52
Total Temporarily Impaired Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Value	247,244	33,020
Less than 12 months, Unrealized Losses	10,554	123
12 months or more, Fair Value	19,803	'
12 months or more, Unrealized Losses	2,290	'
Total, Fair Value	267,047	33,020
Total, Unrealized Losses	$12,844	$123

Loans_Summary_of_Major_Categor

Loans - Summary of Major Categories of Loans Included in Loan Portfolio (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Receivables with Imputed Interest [Line Items]	'	'	'	'
Total loans covered by FDIC loss share agreements	$230,273	$296,295	'	'
Total net loans	1,453,725	1,409,181	'	'
Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'
Real estate loans, Residential	458,331	428,554	'	'
Real estate loans, Commercial	528,710	480,494	'	'
Land, development, construction	62,503	55,474	'	'
Total real estate	1,049,544	964,522	'	'
Commercial	143,263	124,225	'	'
Consumer and other loans	50,695	51,279	'	'
Loans before unearned fees and deferred cost	1,243,502	1,140,026	'	'
Deferred loan origination fees, net of costs	404	-458	'	'
Allowance for loan losses for non covered loans	-19,694	-24,033	-27,585	-26,267
Net loans not covered by FDIC loss share agreements	1,224,212	1,115,535	'	'
Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'	'
Receivables with Imputed Interest [Line Items]	'	'	'	'
Real estate loans, Residential	120,030	142,480	'	'
Real estate loans, Commercial	100,012	134,413	'	'
Land, development, construction	6,381	13,259	'	'
Total real estate	226,423	290,152	'	'
Commercial	3,850	6,143	'	'
Total loans covered by FDIC loss share agreements	230,273	296,295	'	'
Allowance for loan losses for covered loans	-760	-2,649	-359	'
Net loans covered by FDIC loss share agreements	$229,513	$293,646	'	'

Loans_Summary_of_Allowance_for

Loans - Summary of Allowance for Loan Losses (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Recoveries	$0	$0	$293
Provisions	-76	9,220	45,991
Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	24,033	27,585	26,267
Charge-offs	-6,178	-12,514	-31,264
Charge-offs - loan sales	'	'	-14,848
Recoveries	1,274	2,032	1,798
Provisions	565	6,930	45,632
Balance at end of period	19,694	24,033	27,585
Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	2,649	359	'
Charge-offs	-1,248	0	-293
Recoveries	'	0	293
Provisions	-641	2,290	359
Balance at end of period	760	2,649	359
Residential Real Estate [Member] \| Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	6,831	6,700	7,704
Charge-offs	-3,701	-3,968	-9,306
Charge-offs - loan sales	'	'	-3,019
Recoveries	432	378	542
Provisions	5,223	3,721	10,779
Balance at end of period	8,785	6,831	6,700
Residential Real Estate [Member] \| Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	'	82	'
Provisions	'	-82	82
Balance at end of period	'	'	82
Commercial Real Estate [Member] \| Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	8,272	8,825	8,587
Charge-offs	-1,144	-2,862	-11,179
Charge-offs - loan sales	'	'	-11,153
Recoveries	417	871	665
Provisions	-1,104	1,438	21,905
Balance at end of period	6,441	8,272	8,825
Commercial Real Estate [Member] \| Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	2,335	223	'
Charge-offs	-1,248	'	'
Provisions	-949	2,112	223
Balance at end of period	138	2,335	223
Land, Development, Construction [Member] \| Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	6,211	9,098	6,893
Charge-offs	-310	-4,646	-7,717
Charge-offs - loan sales	'	'	-456
Recoveries	193	604	251
Provisions	-3,025	1,155	10,127
Balance at end of period	3,069	6,211	9,098
Land, Development, Construction [Member] \| Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	'	40	'
Charge-offs	'	'	-293
Recoveries	'	'	293
Provisions	89	-40	40
Balance at end of period	89	'	40
Commercial and Industrial [Member] \| Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	1,745	1,984	2,182
Charge-offs	-120	-231	-1,971
Charge-offs - loan sales	'	'	-220
Recoveries	51	22	82
Provisions	-1,166	-30	1,911
Balance at end of period	510	1,745	1,984
Commercial and Industrial [Member] \| Loans Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	314	14	'
Provisions	219	300	14
Balance at end of period	533	314	14
Consumer and Other [Member] \| Loans Not Covered by FDIC Loss Share Agreements [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Beginning of the period	974	978	901
Charge-offs	-903	-807	-1,091
Recoveries	181	157	258
Provisions	637	646	910
Balance at end of period	$889	$974	$978

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 $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Allowance for loan losses:	'	'
Individually evaluated for impairment	$1,811	$1,022
Collectively evaluated for impairment	17,883	23,011
Acquired with deteriorated credit quality	760	2,649
Total ending allowance balance	20,454	26,682
Loans:	'	'
Individually evaluated for impairment	24,110	48,179
Collectively evaluated for impairment	1,218,244	1,089,115
Acquired with deteriorated credit quality	231,421	299,027
Total ending loan balance	1,473,775	1,436,321
Residential Real Estate [Member]	'	'
Allowance for loan losses:	'	'
Individually evaluated for impairment	395	610
Collectively evaluated for impairment	8,390	6,221
Total ending allowance balance	8,785	6,831
Loans:	'	'
Individually evaluated for impairment	8,610	9,936
Collectively evaluated for impairment	449,721	418,618
Acquired with deteriorated credit quality	120,030	142,480
Total ending loan balance	578,361	571,034
Commercial Real Estate [Member]	'	'
Allowance for loan losses:	'	'
Individually evaluated for impairment	1,377	277
Collectively evaluated for impairment	5,064	7,995
Acquired with deteriorated credit quality	138	2,335
Total ending allowance balance	6,579	10,607
Loans:	'	'
Individually evaluated for impairment	12,564	32,860
Collectively evaluated for impairment	516,146	447,634
Acquired with deteriorated credit quality	100,012	134,413
Total ending loan balance	628,722	614,907
Land, Development, Construction [Member]	'	'
Allowance for loan losses:	'	'
Individually evaluated for impairment	16	107
Collectively evaluated for impairment	3,053	6,104
Acquired with deteriorated credit quality	89	'
Total ending allowance balance	3,158	6,211
Loans:	'	'
Individually evaluated for impairment	1,307	1,520
Collectively evaluated for impairment	61,196	53,954
Acquired with deteriorated credit quality	6,381	13,259
Total ending loan balance	68,884	68,733
Commercial and Industrial [Member]	'	'
Allowance for loan losses:	'	'
Individually evaluated for impairment	2	1
Collectively evaluated for impairment	508	1,744
Acquired with deteriorated credit quality	533	314
Total ending allowance balance	1,043	2,059
Loans:	'	'
Individually evaluated for impairment	1,297	3,470
Collectively evaluated for impairment	141,966	120,755
Acquired with deteriorated credit quality	3,850	6,143
Total ending loan balance	147,113	130,368
Consumer and Other [Member]	'	'
Allowance for loan losses:	'	'
Individually evaluated for impairment	21	27
Collectively evaluated for impairment	868	947
Total ending allowance balance	889	974
Loans:	'	'
Individually evaluated for impairment	332	393
Collectively evaluated for impairment	49,215	48,154
Acquired with deteriorated credit quality	1,148	2,732
Total ending loan balance	$50,695	$51,279

Loans_Summary_of_Impaired_Loan

Loans - Summary of Impaired Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Impaired Financing Receivable [Abstract]	'	'
Impaired loans with no allocated allowance for loan losses	$14,656	$37,435
Impaired loans with allocated allowance for loan losses	9,454	10,744
Total impaired loans	24,110	48,179
Amount of the allowance for loan losses allocated to impaired loans	1,811	1,022
Performing Trouble Debt Restructurings (TDRs)	10,763	8,841
Nonperforming TDRs, included in nonperforming loans	4,684	5,819
Total TDRs (TDRs are required to be included in impaired loans)	15,447	14,660
Impaired loans that are not TDRs	8,663	33,519
Total impaired loans	$24,110	$48,179

Loans_Additional_Information_D

Loans - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]	'	'	'
Loans modification, modified terms allowance period minimum	'12 months	'	'
Loans modification, modified terms allowance period maximum	'24 months	'	'
Troubled debt restructured loans total	$15,447	$14,660	'
Performing troubled debt restructured loans	10,763	8,841	'
Non performing TDRs, included in NPLs	4,684	5,819	'
Provision for loan loss expense	890	1,163	'
Partial charge offs for troubled debt restructured	449	854	'
Percentage of troubled debt restructured current pursuant to modified terms	70.00%	'	'
Percentage of troubled debt restructured not performing pursuant to their modified terms	30.00%	'	'
Provision for loan loss expense within twelve months	574	815	'
Partial charge offs for troubled debt restructured	197	657	'
Loan receivable modification, Specific reserve for customers	703	851	'
Loans at credit risk outstanding	500	'	'
Allowances for loan losses	-641	2,290	385
Reversals in loan loss allowance for recoveries	0	0	293
Non-accretable expected cash flows	41,454	'	'
Accretion income	$32,725	'	'

Loans_Schedule_of_Troubled_Deb

Loans - Schedule of Troubled Debt Restructured Loans Based on Performing and Non Performing (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Troubled debt restructured loans ("TDRs"):	'	'
Performing TDRs	$10,763	$8,841
Non performing TDRs	4,684	5,819
Total TDRs	$15,447	$14,660

Loans_Troubled_Debt_Restructur

Loans - Troubled Debt Restructured Loans by Loans Type (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	$10,763	$8,841
Non performing TDRs	4,684	5,819
Total TDRs	15,447	14,660
Residential Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	7,221	6,446
Non performing TDRs	1,389	1,778
Total TDRs	8,610	8,224
Commercial Real Estate [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	2,169	1,589
Non performing TDRs	3,077	3,701
Total TDRs	5,246	5,290
Land, Development, Construction [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	608	202
Non performing TDRs	47	231
Total TDRs	655	433
Total Real Estate Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	9,998	8,237
Non performing TDRs	4,513	5,710
Total TDRs	14,511	13,947
Commercial Loans [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	555	315
Non performing TDRs	49	5
Total TDRs	604	320
Consumer and Other [Member]	'	'
Financing Receivable, Modifications [Line Items]	'	'
Performing TDRs	210	289
Non performing TDRs	122	104
Total TDRs	$332	$393

Loans_Summary_of_Loans_by_Clas

Loans - Summary of Loans by Class Modified (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	SecurityLoan	SecurityLoan
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	12	19
Recorded investment	$2,848	$3,526
Residential Real Estate [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	3	10
Recorded investment	553	758
Commercial Real Estate [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	6	4
Recorded investment	2,244	2,567
Land, Development, Construction [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	'	4
Recorded investment	'	156
Commercial Loans [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	2	'
Recorded investment	34	0
Consumer and Other [Member]	'	'
Mortgage Loans on Real Estate [Line Items]	'	'
Number of loans	1	1
Recorded investment	$17	$45

Loans_Summary_of_Loans_Individ

Loans - Summary of Loans Individually Evaluated for Impairment by Class of Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Impaired [Line Items]	'	'
Recorded investment, With no related allowance	$14,656	$37,435
Unpaid principal balance	26,882	52,529
Recorded investment, With an allowance recorded	9,454	10,744
Total impaired loans	24,110	48,179
Amount of allowance for loan losses allocated to impaired loans	1,811	1,022
Residential Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	5,052	1,712
Unpaid principal balance, With an allowance recorded	3,942	8,624
Recorded investment, With no related allowance	4,803	1,712
Recorded investment, With an allowance recorded	3,807	8,224
Amount of allowance for loan losses allocated to impaired loans	395	610
Commercial Real Estate [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	9,330	33,789
Unpaid principal balance, With an allowance recorded	5,257	1,742
Recorded investment, With no related allowance	7,439	31,171
Recorded investment, With an allowance recorded	5,125	1,689
Amount of allowance for loan losses allocated to impaired loans	1,377	277
Land, Development, Construction [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	1,377	2,042
Unpaid principal balance, With an allowance recorded	147	664
Recorded investment, With no related allowance	1,168	1,087
Recorded investment, With an allowance recorded	139	433
Amount of allowance for loan losses allocated to impaired loans	16	107
Commercial Loans [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	1,330	3,556
Unpaid principal balance, With an allowance recorded	102	5
Recorded investment, With no related allowance	1,241	3,465
Recorded investment, With an allowance recorded	56	5
Amount of allowance for loan losses allocated to impaired loans	2	1
Consumer and Other [Member]	'	'
Financing Receivable, Impaired [Line Items]	'	'
Unpaid principal balance, With no allowance recorded	5	'
Unpaid principal balance, With an allowance recorded	340	395
Recorded investment, With no related allowance	5	'
Recorded investment, With an allowance recorded	327	393
Amount of allowance for loan losses allocated to impaired loans	$21	$27

Loans_Summary_of_Impairment_by

Loans - Summary of Impairment by Class of Loans (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	$38,674	$48,515	$74,502
Interest income recognized during impairment	1,223	1,671	1,517
Cash basis interest income recognized	'	'	'
Residential Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	8,968	10,136	13,035
Interest income recognized during impairment	290	306	261
Cash basis interest income recognized	'	'	'
Commercial Real Estate [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	26,060	29,877	40,403
Interest income recognized during impairment	870	1,215	855
Cash basis interest income recognized	'	'	'
Land, Development, Construction [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	1,405	3,888	14,348
Interest income recognized during impairment	17	23	118
Cash basis interest income recognized	'	'	'
Total Real Estate Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	36,433	43,901	67,786
Interest income recognized during impairment	1,177	1,544	1,234
Cash basis interest income recognized	'	'	'
Commercial Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	1,878	4,175	6,144
Interest income recognized during impairment	35	110	262
Cash basis interest income recognized	'	'	'
Consumer and Other Loans [Member]	'	'	'
Financing Receivable, Impaired [Line Items]	'	'	'
Average of impaired loans during the period	363	439	572
Interest income recognized during impairment	11	17	21
Cash basis interest income recognized	'	'	'

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 $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	$27,077	$25,448
Loans past due over 90 days still accruing, Total	30	293
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	10,162	9,993
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	13,925	11,459
Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	1,099	2,032
Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	1,582	1,650
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Nonaccrual, Total	309	314
Loans past due over 90 days still accruing, Total	$30	$293

Loans_Summary_Aging_of_Recorde

Loans - Summary Aging of Recorded Investment in Past Due Loans (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	$1,243,502	$1,140,026
30 - 59 days past due	6,151	4,069
60 - 89 days past due	4,365	3,353
Greater than 90 days past due	30	293
Total Past Due	10,546	7,715
Loans Not Past Due	1,205,879	1,106,863
Nonaccrual Loans	27,077	25,448
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	458,331	428,554
30 - 59 days past due	2,801	1,632
60 - 89 days past due	1,942	677
Total Past Due	4,743	2,309
Loans Not Past Due	443,426	416,252
Nonaccrual Loans	10,162	9,993
Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	528,710	480,494
30 - 59 days past due	2,420	1,663
60 - 89 days past due	1,941	1,147
Total Past Due	4,361	2,810
Loans Not Past Due	510,424	466,225
Nonaccrual Loans	13,925	11,459
Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	62,503	55,474
30 - 59 days past due	136	115
60 - 89 days past due	241	624
Total Past Due	377	739
Loans Not Past Due	61,027	52,703
Nonaccrual Loans	1,099	2,032
Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	143,263	124,225
30 - 59 days past due	491	203
60 - 89 days past due	1	416
Total Past Due	492	619
Loans Not Past Due	141,189	121,956
Nonaccrual Loans	1,582	1,650
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	50,695	51,279
30 - 59 days past due	303	456
60 - 89 days past due	240	489
Greater than 90 days past due	30	293
Total Past Due	573	1,238
Loans Not Past Due	49,813	49,727
Nonaccrual Loans	$309	$314

Loans_Risk_Category_of_Loans_b

Loans - Risk Category of Loans by Class of Loans, Excluding Loans Acquired from FDIC (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$458,331	$428,554
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	50,695	51,279
Pass [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	1,112,028	998,093
Pass [Member] \| Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	428,671	400,244
Pass [Member] \| Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	448,762	394,238
Pass [Member] \| Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	50,164	39,650
Pass [Member] \| Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	134,901	114,067
Pass [Member] \| Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	49,530	49,894
Special Mention [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	67,483	66,315
Special Mention [Member] \| Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	6,438	4,797
Special Mention [Member] \| Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	46,427	44,933
Special Mention [Member] \| Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	9,566	11,994
Special Mention [Member] \| Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	4,490	3,978
Special Mention [Member] \| Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	562	613
Substandard [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	63,991	75,618
Substandard [Member] \| Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	23,222	23,513
Substandard [Member] \| Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	33,521	41,323
Substandard [Member] \| Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	2,773	3,830
Substandard [Member] \| Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	3,872	6,180
Substandard [Member] \| Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	603	772
Doubtful [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'
Doubtful [Member] \| Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'
Doubtful [Member] \| Commercial Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'
Doubtful [Member] \| Land, Development, Construction [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'
Doubtful [Member] \| Commercial Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'
Doubtful [Member] \| Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	'	'

Loans_Investment_in_Residentia

Loans - Investment in Residential and Consumer Loans, Excluding Loans from FDIC (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Residential Real Estate [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$458,331	$428,554
Residential Real Estate [Member] \| Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	448,169	418,561
Residential Real Estate [Member] \| Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	10,162	9,993
Consumer and Other [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	50,695	51,279
Consumer and Other [Member] \| Performing [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	50,356	50,672
Consumer and Other [Member] \| Nonperforming [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans	$339	$607

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 $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]	'	'	'
Contractually required principal and interest	$389,537	$534,989	$291,531
Non-accretable difference	-55,304	-142,855	-51,536
Cash flows expected to be collected	334,233	392,134	239,995
Accretable yield	-102,812	-93,107	-74,552
Carrying value of acquired loans	231,421	299,027	165,443
Allowance for loan losses	-760	-2,649	-385
Carrying value less allowance for loan losses	$230,661	$296,378	$165,058

Loans_Summary_of_Changes_in_To

Loans - Summary of Changes in Total Contractually Required Principal and Interest Cash Payments (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2011
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	$93,107	$74,552
Income accretion	32,725	'
Accretable yield, ending balance	102,812	74,552
Contractually Required Principal and Interest [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	534,989	'
Income accretion	'	'
All other adjustments	-145,452	'
Accretable yield, ending balance	389,537	'
Non-Accretable Difference [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	142,855	'
Income accretion	'	'
All other adjustments	87,551	'
Accretable yield, ending balance	55,304	'
Cash Flows Expected to be Collected [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	392,134	'
Income accretion	'	'
All other adjustments	-57,901	'
Accretable yield, ending balance	334,233	'
Accretable Yield [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	93,107	'
Income accretion	32,725	'
All other adjustments	-42,430	'
Accretable yield, ending balance	102,812	'
Carry Value of Acquired Loans [Member]	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Accretable yield, beginning balance	299,027	'
Income accretion	32,725	'
All other adjustments	-100,331	'
Accretable yield, ending balance	$231,421	'

FDIC_Indemnification_Asset_FDI

FDIC Indemnification Asset - FDIC Loss Share Indemnification Asset (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fdic Loss Share Indemnification Asset [Abstract]	'	'	'
Beginning of the year	$119,289	$50,642	'
Effect of acquisitions	'	85,088	'
Discount accretion/(amortization)	-13,807	-3,096	-503
Indemnification revenue	6,055	4,185	'
Indemnification of foreclosure expense	4,413	2,425	'
Proceeds from FDIC	-42,004	-21,787	'
Impairment of loan pool	-513	1,832	'
End of the year	$73,433	$119,289	$50,642

FDIC_Indemnification_Asset_Add

FDIC Indemnification Asset - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fdic Indemnification Asset [Abstract]	'	'
Loan pools covered by FDIC loss share agreements	$641	'
Percentage of Federal Deposit Insurance Corporation reimbursable amount	80.00%	'
Federal Deposit Insurance Corporation reimbursable expenses	($513)	$1,832
Cost incurred as a percentage of indemnification revenue	80.00%	'
Percentage of indemnification of foreclosure expense from FDIC	80.00%	'

Other_Real_Estate_Owned_Activi

Other Real Estate Owned - Activity of Valuation Allowance in Other Real Estate Owned and Expense Related to Foreclosed Assets (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Real Estate [Abstract]	'	'	'
Beginning of year	$5,407	$4,680	$2,650
Valuation write down of repossessed real estate	6,012	4,258	6,751
Sales and/or dispositions	-5,532	-3,531	-4,721
End of year	5,887	5,407	4,680
Expenses related to foreclosed real estate include:	'	'	'
Loss on sale of repossessed real estate	3,122	1,185	545
Valuation write down of repossessed real estate	6,012	4,258	6,751
Operating expenses, net of rental income	3,191	4,008	4,268
Total	$12,325	$9,451	$11,564

Fair_Value_Additional_Informat

Fair Value - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Property	Dec. 31, 2012	Dec. 31, 2011
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'
Impaired loans with allocated allowance for loan losses	$13,528	$11,678	'
Impaired valuation allowance	1,644	370	'
Provision for loan loss expense	1,895	2,501	'
Additions charged to expenses	6,012	4,258	6,751
Proceeds from sale of bank property held for sale	931	505	'
Gain on disposal of bank property held for sale	31	'	'
Total impairment charges	'	$614	'
Properties sold during the current year	1	'	'
Office Building [Member]	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'
Number of branch office buildings held for sale	3	'	'
Minimum [Member]	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'
Capitalization rates to determine fair value of collateral	8.00%	'	'
Maximum [Member]	'	'	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'
Capitalization rates to determine fair value of collateral	11.00%	'	'

Fair_Value_Assets_and_Liabilit

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets:	'	'
Interest rate swap derivatives, assets	$2,603	$1,131
Trading securities, at fair value	'	5,048
Available for sale securities	457,086	425,758
Interest rate swap derivatives, carrying amount assets	2,603	1,131
Liabilities:	'	'
Interest rate swap derivatives, carrying amount liability	2,496	2,014
Interest rate swap derivatives, liabilities	2,496	2,014
Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	416,881	373,190
Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	40,201	45,022
Fair Value Measurements on Recurring [Member]	'	'
Assets:	'	'
Trading securities, at fair value	'	5,048
Interest rate swap derivatives, carrying amount assets	2,603	1,131
Liabilities:	'	'
Interest rate swap derivatives, carrying amount liability	2,496	2,014
Fair Value Measurements on Recurring [Member] \| Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Assets:	'	'
Available for sale securities	4	7,546
Fair Value Measurements on Recurring [Member] \| Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	416,881	373,190
Fair Value Measurements on Recurring [Member] \| Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	40,201	45,022
Fair Value Measurements on Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Assets:	'	'
Interest rate swap derivatives, assets	'	'
Trading securities, at fair value	'	'
Liabilities:	'	'
Interest rate swap derivatives, liabilities	'	'
Fair Value Measurements on Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Assets:	'	'
Available for sale securities	'	'
Fair Value Measurements on Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	'	'
Fair Value Measurements on Recurring [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	'	'
Fair Value Measurements on Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member]	'	'
Assets:	'	'
Interest rate swap derivatives, assets	2,603	1,131
Trading securities, at fair value	'	5,048
Liabilities:	'	'
Interest rate swap derivatives, liabilities	2,496	2,014
Fair Value Measurements on Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Assets:	'	'
Available for sale securities	4	7,546
Fair Value Measurements on Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	416,881	373,190
Fair Value Measurements on Recurring [Member] \| Significant Other Observable Inputs (Level 2) [Member] \| Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	40,201	45,022
Fair Value Measurements on Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member]	'	'
Assets:	'	'
Interest rate swap derivatives, assets	'	'
Trading securities, at fair value	'	'
Liabilities:	'	'
Interest rate swap derivatives, liabilities	'	'
Fair Value Measurements on Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Obligations of U.S. Government Agencies and Government Sponsored Enterprises [Member]	'	'
Assets:	'	'
Available for sale securities	'	'
Fair Value Measurements on Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Mortgage Backed Securities [Member]	'	'
Assets:	'	'
Available for sale securities	'	'
Fair Value Measurements on Recurring [Member] \| Significant Unobservable Inputs (Level 3) [Member] \| Municipal Securities [Member]	'	'
Assets:	'	'
Available for sale securities	'	'

Fair_Value_Assets_and_Liabilit1

Fair Value - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans on Residential real estate at Carrying value	$3,191	$837
Impaired loans on Commercial real estate at Carrying value	7,515	8,379
Impaired loans on Land, land development and construction at Carrying value	290	1,103
Impaired loans on Commercial at Carrying value	731	905
Impaired loans on Consumer at Carrying value	157	84
Other real estate owned on Residential real estate at Carrying value	27	582
Other real estate owned on Commercial real estate at Carrying value	3,837	5,933
Other real estate owned on Land, land development and construction at Carrying value	3,949	4,445
Bank owned real estate held for sale	1,582	2,482
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans on Residential real estate	'	'
Impaired loans on Commercial real estate	'	'
Impaired loans on Land, land development and construction	'	'
Impaired loans on Commercial	'	'
Impaired loans on Consumer	'	'
Other real estate owned on Residential real estate	'	'
Other real estate owned on Commercial real estate	'	'
Other real estate owned on Land, land development and construction	'	'
Bank owned real estate held for sale	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired loans on Residential real estate	'	'
Impaired loans on Commercial real estate	'	'
Impaired loans on Land, land development and construction	'	'
Impaired loans on Commercial	'	'
Impaired loans on Consumer	'	'
Other real estate owned on Residential real estate	'	'
Other real estate owned on Commercial real estate	'	'
Other real estate owned on Land, land development and construction	'	'
Bank owned real estate held for sale	'	'
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	3,191	837
Impaired loans on Commercial real estate	7,515	8,379
Impaired loans on Land, land development and construction	290	1,103
Impaired loans on Commercial	731	905
Impaired loans on Consumer	157	84
Other real estate owned on Residential real estate	27	582
Other real estate owned on Commercial real estate	3,837	5,933
Other real estate owned on Land, land development and construction	3,949	4,445
Bank owned real estate held for sale	$1,582	$2,482

Fair_Value_Carrying_Amounts_an

Fair Value - Carrying Amounts and Estimated Fair Values of Company's Financial Instruments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Financial assets:	'	'	'	'
Cash and cash equivalents	$174,889	$136,748	$151,095	$177,515
Cash and cash equivalents, fair value	174,889	136,748	'	'
Trading securities, at fair value	'	5,048	'	'
Investment securities available for sale, at fair value	457,086	425,758	'	'
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	8,189	9,749	'	'
Loans held for sale, carrying amount	1,010	2,709	'	'
Loans held for sale, fair value	1,010	2,709	'	'
Loans, less allowance for loan losses, carrying amount	1,453,725	1,409,181	'	'
Loans, less allowance for loan losses, fair value	1,456,295	1,324,630	'	'
FDIC indemnification asset, carrying amount	73,433	119,289	50,642	'
Interest rate swap derivatives, carrying amount assets	2,603	1,131	'	'
Interest rate swap derivatives, assets fair value	2,603	1,131	'	'
Accrued interest receivable, carrying amount	6,337	6,100	'	'
Accrued interest receivable, fair value	6,337	6,100	'	'
Financial liabilities:	'	'	'	'
Deposits- without stated maturities, carrying amount	1,671,356	1,521,928	'	'
Deposits- without stated maturities, fair value	1,671,356	1,521,928	'	'
Deposits- with stated maturities, carrying amount	384,875	475,304	'	'
Deposits- with stated maturities, fair value	389,115	483,220	'	'
Securities sold under agreement to repurchase	20,457	18,792	'	'
Securities sold under agreement to repurchase, fair value	20,457	18,792	'	'
Federal funds purchased (correspondent bank deposits), carrying amount	29,909	38,932	'	'
Federal funds purchased (correspondent bank deposits), fair value	29,909	38,932	'	'
Corporate debentures, carrying amount	16,996	16,970	'	'
Corporate debentures, fair value	11,091	8,477	'	'
Interest rate swap derivatives, carrying amount	2,496	2,014	'	'
Interest rate swap derivatives, fair value	2,496	2,014	'	'
Accrued interest payable, carrying amount	333	579	'	'
Accrued interest payable, fair value	333	579	'	'
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Cash and cash equivalents, fair value	174,889	136,748	'	'
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	'	'	'	'
FDIC Indemnification asset, fair value	'	'	'	'
Financial liabilities:	'	'	'	'
Deposits- without stated maturities, fair value	1,671,356	1,521,928	'	'
Significant Other Observable Inputs (Level 2) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Trading securities, at fair value	'	5,048	'	'
Investment securities available for sale, at fair value	457,086	425,758	'	'
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	'	'	'	'
Loans held for sale, fair value	1,010	2,709	'	'
FDIC Indemnification asset, fair value	'	'	'	'
Interest rate swap derivatives, assets fair value	2,603	1,131	'	'
Financial liabilities:	'	'	'	'
Deposits- with stated maturities, fair value	389,115	483,220	'	'
Securities sold under agreement to repurchase, fair value	20,457	18,792	'	'
Federal funds purchased (correspondent bank deposits), fair value	29,909	38,932	'	'
Interest rate swap derivatives, fair value	2,496	2,014	'	'
Accrued interest payable, fair value	333	579	'	'
Significant Unobservable Inputs (Level 3) [Member]	'	'	'	'
Financial assets:	'	'	'	'
Federal Home Loan Bank and Federal Reserve Bank stock, at cost	'	'	'	'
Loans, less allowance for loan losses, fair value	1,456,295	1,324,630	'	'
FDIC Indemnification asset, fair value	'	'	'	'
Accrued interest receivable, fair value	6,337	6,100	'	'
Financial liabilities:	'	'	'	'
Corporate debentures, fair value	$11,091	$8,477	'	'

Fair_Value_Carrying_Amounts_an1

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

Bank_Premises_and_Equipment_Su

Bank Premises and Equipment - Summary of Bank Premises and Equipment (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	$125,133	$123,507
Less: Accumulated depreciation	28,514	25,553
Bank premises and equipment, Net	96,619	97,954
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	32,591	32,642
Land Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	864	823
Buildings [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	56,651	55,065
Leasehold Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	2,450	2,867
Furniture, Fixtures and Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	26,749	26,278
Construction in Progress [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Bank premises and equipment, Gross	$5,828	$5,832

Bank_Premises_and_Equipment_Mi

Bank Premises and Equipment - Minimum Future Contractual Annual Rentals (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2013
Property Plant And Equipment [Abstract]	'
2014	$1,586
2015	926
2016	746
2017	739
2018	716
Thereafter	1,731
Total	$6,444

Bank_Premises_and_Equipment_Ad

Bank Premises and Equipment - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property Plant And Equipment [Abstract]	'	'	'
Rental expense, net	$1,099	$1,455	$1,212
Annual rental income	$540	$507	$487

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Change in Balance for Goodwill (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 27, 2012
Goodwill And Intangible Assets Disclosure [Abstract]	'	'	'	'
Beginning of year	$44,924	$38,035	$38,035	$6,890
Acquired goodwill	'	6,889	'	'
Impairment	'	'	'	'
End of year	$44,924	$44,924	$38,035	$6,890

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Amortized period on accelerated basis	'10 years

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Acquired Intangible Assets for Core Deposit Intangibles and Trust (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'
Beginning of year	$7,307	$5,203	$3,921
Acquired	13,187	13,187	'
Amortization expense	-1,191	-1,372	-804
Impairment expense	'	'	'
End of year	6,116	7,307	5,203
Core Deposits [Member]	'	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'
Acquired	'	1,896	2,086
Trust [Member]	'	'	'
Acquired Finite-Lived Intangible Assets [Line Items]	'	'	'
Acquired	'	$1,580	'

Goodwill_and_Intangible_Assets5

Goodwill and Intangible Assets - Schedule of Acquired Intangible Assets (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Amortized intangible assets:	'	'
Core deposit intangibles, Gross Carrying Amount	$11,607	$11,607
Trust Intangible, Gross Carrying Amount	1,580	1,580
Total acquired intangibles, Gross Carrying Amount	13,187	13,187
Core deposit intangibles, Accumulated Amortization	6,649	5,663
Trust intangible, Accumulated Amortization	422	217
Total acquired intangibles, Accumulated Amortization	$7,071	$5,880

Goodwill_and_Intangible_Assets6

Goodwill and Intangible Assets - Estimated Amortization Expense (Detail) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
2014	$1,061
2015	977
2016	950
2017	754
2018	$700

Deposits_Summary_of_Deposits_D

Deposits - Summary of Deposits (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]	'	'
Non-interest bearing deposits	$644,915	$519,510
Interest bearing deposits:	'	'
Interest bearing demand deposits	483,842	452,961
Savings deposits	232,942	238,216
Money market accounts	309,657	311,241
Time deposits less than $100,000	181,635	229,598
Time deposits of $100,000 or greater	203,240	245,706
Total deposits	$2,056,231	$1,997,232
Interest bearing demand deposits, weighted average interest rate	0.10%	0.10%
Savings deposits, weighted average interest rate	0.10%	0.10%
Money market accounts, weighted average interest rate	0.20%	0.10%
Time deposits less than $100,000, weighted average interest rate	0.80%	1.30%
Time deposits of $100,000 or greater, weighted average interest rate	1.20%	1.50%
Total deposits, weighted average interest rate	0.20%	0.40%

Deposits_Summary_of_Certificat

Deposits - Summary of Certificate Accounts (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]	'	'
2014	$236,511	'
2015	107,073	'
2016	20,422	'
2017	9,209	'
2018	11,660	'
Thereafter	'	'
Total	$384,875	$475,304

Securities_Sold_Under_Agreemen2

Securities Sold Under Agreements to Repurchase - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]	'	'
Repurchase Agreement entered by entity	$20,457	$18,792
Collateral pledged against repurchase agreement	$37,845	$41,142

Securities_Sold_Under_Agreemen3

Securities Sold Under Agreements to Repurchase - Summary of Repurchase Agreement (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Banking And Thrift [Abstract]	'	'	'
Average daily balance during the year	$21,693	$21,388	$15,949
Average interest rate during the year	0.36%	0.40%	0.53%
Maximum month-end balance during the year	$24,483	$24,989	$18,652
Weighted average interest rate at year end	0.40%	0.40%	0.47%

Federal_Funds_Purchased_Federa

Federal Funds Purchased - Federal Funds Purchased Overnight Deposits from Correspondent Banks (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Banking And Thrift [Abstract]	'	'	'
Average daily balance during the year	$37,958	$53,803	$70,940
Average interest rate during the period	0.05%	0.05%	0.07%
Maximum month-end balance during the year	$53,274	$82,473	$92,111
Weighted average interest rate at year end	0.05%	0.05%	0.05%

Federal_Home_Loan_Bank_Advance1

Federal Home Loan Bank Advances and Other Borrowed Funds - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Banking And Thrift [Abstract]	'	'
Federal Home Loan Bank advances, maximum eligible amount under collateralized transaction	$137,022	'
Advances from the Federal Home Loan Bank	$0	$0

Note_Payable_Additional_Inform

Note Payable - Additional Information (Detail) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jan. 25, 2012	Jan. 31, 2012	Dec. 31, 2012	Dec. 31, 2010
	Jan. 25, 2012	Bank	Bank	Bank
Debt Disclosure [Abstract]	'	'	'	'
Amount of funds borrowed by holding company	$10,000	'	'	'
Deposits reprice pursuant to acquisition	$127,856	'	'	'
Duration of LIBOR interest rate period	'90 days	'	'	'
LIBOR plus basic points	0.04	'	'	'
Note payable, interest rate description	'90 day LIBOR plus 400 bps	'	'	'
Number of acquired banks	'	2	2	3

Corporate_Debenture_Additional

Corporate Debenture - Additional Information (Detail) (USD $)	0 Months Ended			12 Months Ended	0 Months Ended	1 Months Ended	0 Months Ended			1 Months Ended
In Thousands, unless otherwise specified	Jan. 25, 2012	Sep. 09, 2004	Sep. 22, 2003	Dec. 31, 2013	Sep. 09, 2004	Nov. 30, 2011	Sep. 22, 2003	Sep. 09, 2004	Sep. 17, 2003	Nov. 30, 2011	Nov. 01, 2011
	Jan. 25, 2012	Sep. 09, 2004	Sep. 22, 2003	Dec. 31, 2013	Valrico Bancorp [Member]	Federal Trust Corporation [Member]	Trust [Member]	Valrico Trust [Member]	Federal Trust Statutory I [Member]	Federal Trust Statutory Trust [Member]	Federal Trust Statutory Trust [Member]
Corporate Debenture [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Floating rate corporate debenture issued, amount	'	$2,500	'	'	'	'	$10,000	'	$5,000	'	'
Trust preferred securities, basis spread on LIBOR rate	'	'	'	'	'	2.95%	3.05%	2.70%	'	'	'
Debenture interest rate description	'90 day LIBOR plus 400 bps	'	'	'	'Three month LIBOR plus 270 basis points	'Three month LIBOR plus 295 basis points	'Three month LIBOR plus 305 basis points	'	'	'	'
Trust preferred security lives	'	'	'	'	'	'30 years	'30 years	'30 years	'	'	'
Trust preferred securities callable, call option period	'	'	'	'	'	'5 years	'5 years	'5 years	'	'	'
Investment in the common stock of the trust	'	'	'	'	'	'	$310	$77	'	'	$155
Corporate debenture, basis spread on LIBOR rate	'	'	'	'	2.70%	'	3.05%	'	'	2.95%	'
Corporate debenture lives	'	'	'30 years	'	'30 years	'	'	'	'	'30 years	'
Corporate debenture callable, Call option period	'	'	'5 years	'	'5 years	'	'	'	'	'5 years	'
Debt instrument maturity year	'	'	'	'2033	'	'	'	'	'	'	'

Income_Taxes_Allocation_of_Fed

Income Taxes - Allocation of Federal and State Income Tax Expense (Benefit) Between Current and Deferred Portions (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Current, Federal Tax Expense	$4,423	($32)	($169)
Current, State Tax Expense	1,055	271	288
Current, Total	5,478	239	119
Deferred, Federal Tax Expense	27	3,761	2,818
Deferred, State Tax Expense	5	625	482
Deferred, Total	32	4,386	3,300
Federal, Total	4,450	3,729	2,649
State, Total	1,060	896	770
Total	$5,510	$4,625	$3,419

Income_Taxes_Components_of_Def

Income Taxes - Components of Deferred Tax Assets and Deferred Tax Liabilities (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:	'	'
Allowance for loan losses	$7,890	$9,975
Deferred loan fees, net	'	172
Stock based compensation	469	440
Deferred compensation	2,598	1,705
Impairment expenses	403	459
Net operating loss carryforward	'	8,968
Other real estate owned expenses	3,074	2,678
Nonaccrual interest	560	629
Unrealized loss on investment securities available for sale	2,816	'
Other	1,007	883
Total deferred tax assets	18,817	25,909
Deferred tax liabilities:	'	'
Premises and equipment, due to differences in depreciation methods and useful lives	-4,096	-4,840
Deferred loan costs, net	-156	'
Fair value adjustments	-8,937	-18,233
Like kind exchange	-300	-293
Unrealized gain on investment securities available for sale	'	-4,404
Accretion of discounts on investments	-32	-31
Total deferred tax liabilities	-13,521	-27,801
Net deferred tax (liability) asset	$5,296	($1,892)

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail)	12 Months Ended
Income Taxes - Additional Information (Detail)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
U.S. federal corporate rate	35.00%	34.00%	34.00%

Income_Taxes_Reconciliation_Be

Income Taxes - Reconciliation Between the Actual Tax Expense and the Expected Tax (Benefit) Expense (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
"Expected" tax (benefit) expense	$6,214	$4,940	$3,851
Tax exempt interest, net	-907	-925	-856
Bank owned life insurance	-391	-412	-329
State income taxes, net of federal income tax benefits	689	591	508
Stock based compensation	100	104	111
Other, net	-195	327	134
Total	$5,510	$4,625	$3,419

RelatedParty_Transactions_Summ

Related-Party Transactions - Summary Loans to Principal Officers, Directors and Their Affiliates (Detail) (Principal Officer Directors and Their Affiliates [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Principal Officer Directors and Their Affiliates [Member]	'	'
Related Party Transaction [Line Items]	'	'
Beginning balance	$3,957	$22,941
New loans	2,354	2,382
Effect of changes in composition of related parties	'	-18,870
Repayments	-3,050	-2,496
Ending balance	$3,261	$3,957

RelatedParty_Transactions_Addi

Related-Party Transactions - Additional Information (Detail) (Principal Officer Directors and Their Affiliates [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Principal Officer Directors and Their Affiliates [Member]	'	'
Related Party Transaction [Line Items]	'	'
Line of credit available for principal officers, directors, and their affiliates	$2,057	$1,257
Deposits from principal officers, directors, and their affiliates	$12,694	$15,018

Regulatory_Capital_Matters_Add

Regulatory Capital Matters - Additional Information (Detail)	Dec. 31, 2013
Banking And Thrift [Abstract]	'
Tier 1 leverage ratio	8.00%

Regulatory_Capital_Matters_Sum

Regulatory Capital Matters - Summary of Actual, Required, and Capital Levels Necessary for Capital Adequacy Purposes (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Total capital (to risk weighted assets), Amount	$262,701	$249,016
Tier 1 capital (to risk weighted assets), Amount	244,323	231,501
Tier 1 capital (to average assets), Amount	244,323	231,501
Total capital (to risk weighted assets), Ratio	17.90%	17.90%
Tier 1 capital (to risk weighted assets), Ratio	16.60%	16.60%
Tier 1 capital (to average assets), Ratio	10.40%	9.90%
Total capital (to risk weighted assets) For capital adequacy purposes, Amount	117,450	111,360
Tier 1 capital (to risk weighted assets) For capital adequacy purposes, Amount	58,725	55,680
Tier 1 capital (to average assets) For capital adequacy purposes, Amount	94,182	93,432
Total capital (to risk weighted assets) For capital adequacy purposes, Ratio	8.00%	8.00%
Tier 1 capital (to risk weighted assets) For capital adequacy purposes, Ratio	4.00%	4.00%
Tier 1 capital (to average assets) For capital adequacy purposes, Ratio	4.00%	4.00%
Total capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Amount	'	'
Tier 1 capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Amount	'	'
Tier 1 capital (to average assets) To be well capitalized under Prompt corrective action provision, Amount	'	'
Total capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Ratio	'	'
Tier 1 capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Ratio	'	'
Tier 1 capital (to average assets) To be well capitalized under Prompt corrective action provision, Ratio	'	'
CenterState Bank of Florida, N.A. [Member]	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Total capital (to risk weighted assets), Amount	213,744	230,590
Tier 1 capital (to risk weighted assets), Amount	195,434	213,161
Tier 1 capital (to average assets), Amount	195,434	213,161
Total capital (to risk weighted assets), Ratio	14.60%	16.60%
Tier 1 capital (to risk weighted assets), Ratio	13.40%	15.40%
Tier 1 capital (to average assets), Ratio	8.30%	9.20%
Total capital (to risk weighted assets) For capital adequacy purposes, Amount	117,021	110,824
Tier 1 capital (to risk weighted assets) For capital adequacy purposes, Amount	58,511	55,412
Tier 1 capital (to average assets) For capital adequacy purposes, Amount	93,955	92,632
Total capital (to risk weighted assets) For capital adequacy purposes, Ratio	8.00%	8.00%
Tier 1 capital (to risk weighted assets) For capital adequacy purposes, Ratio	4.00%	4.00%
Tier 1 capital (to average assets) For capital adequacy purposes, Ratio	4.00%	4.00%
Total capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Amount	146,277	138,530
Tier 1 capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Amount	87,766	83,118
Tier 1 capital (to average assets) To be well capitalized under Prompt corrective action provision, Amount	$117,444	$115,789
CenterState Bank of Florida, N.A. [Member] \| Minimum [Member]	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Total capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Ratio	10.00%	10.00%
Tier 1 capital (to risk weighted assets) To be well capitalized under Prompt corrective action provision, Ratio	6.00%	6.00%
Tier 1 capital (to average assets) To be well capitalized under Prompt corrective action provision, Ratio	5.00%	5.00%

Dividends_Additional_Informati

Dividends - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity [Abstract]	'	'	'	'
Cash dividends declared & paid on common stock	'	$1,204	$1,203	$1,201
Dividend received from subsidiary banks	$34,000	'	'	'

StockBased_Compensation_Additi

Stock-Based Compensation - Additional Information (Detail) (USD $)

12 Months Ended

0 Months Ended

12 Months Ended

In Thousands, except Share data, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Apr. 25, 2013

Apr. 24, 2007

Dec. 31, 2013

Apr. 25, 2013

Dec. 31, 2013

Apr. 24, 2007

Apr. 25, 2013

Apr. 24, 2007

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

1999 plan [Member]

2013 Equity Incentive Plan [Member]

2007 Equity Incentive Plan [Member]

Employee [Member]

Director [Member]

Non Qualified Incentive Stock Options [Member]

Qualified Incentive Stock Options [Member]

Restricted Stock [Member]

Stock Option [Member]

2013 Equity Incentive Plan [Member]

2007 Equity Incentive Plan [Member]

2013 Equity Incentive Plan [Member]

2007 Equity Incentive Plan [Member]

Employee [Member]

Weighted Average [Member]

Maximum [Member]

Minimum [Member]

Employee [Member]

Weighted Average [Member]

2013 Equity Incentive Plan [Member]

2007 Equity Incentive Plan [Member]

2013 Equity Incentive Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Maximum number of shares available for issuance

730,000

1,600,000

1,350,000

1,525,000

1,200,000

75,000

150,000

2013 Plan expiration

'2023

Employee incentive stock options, granted

3,000

57,500

4,000

3,000

Average exercise price of shares granted

$10.22

$6.87

$5.78

$10.22

Stock option expiration period

'10 years

Restricted stock awards vesting period

'4 years

'10 years

'4 years

'9 years

Restricted stock, granted

59,000

500

Fair value of restricted stock granted

$10.24

$8.48

Shares available for future grants

1,535,549

Stock options vesting description

'25% vested immediately as of the grant date and continued to vest at a rate of 25% on each anniversary date thereafter until fully vested.

Stock Options vesting immediately on grant date

25.00%

Stock Options vesting subsequently on each anniversary

25.00%

Stock options outstanding

1,073,716

1,158,646

1,128,304

1,265,054

262,000

Stock option plans of subsidiary banks , assumed and converted, Outstanding exercisable options

701,156

58,716

Income tax benefit provided by share based awards

$122

$101

$115

Remaining unrecognized compensation cost related to non-vested stock options

$1,010

$2,086

Non vested stock options, unrecognized compensation cost, recognition period

'9 years

'2 years 8 months 12 days

'9 years

'3 years 6 months

Weighted-average estimated fair value of stock options granted

$4.91

$3.09

$2.46

StockBased_Compensation_Summar

Stock-Based Compensation - Summary of Stock Based Compensation Expense Recognized (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Stock option expense	$292	$363	$398
RSA expense	317	268	307
Total stock-based compensation expense	$609	$631	$705

StockBased_Compensation_Summar1

Stock-Based Compensation - Summary of Estimated Fair Value of Options Granted Weighted-Average Assumptions (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Expected option life	'7 years 8 months 12 days	'7 years 8 months 12 days	'7 years 8 months 12 days
Risk-free interest rate	1.91%	1.08%	1.60%
Expected volatility	44.50%	44.30%	42.80%
Dividend yield	0.39%	0.62%	0.69%

StockBased_Compensation_Inform

Stock-Based Compensation - Information Related to Stock Option Activity (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Total intrinsic value of stock options exercised	$2	'	$13
Cash received from stock options exercised	'	'	38
Gross income tax benefit from the exercise of stock options	'	'	'

StockBased_Compensation_Summar2

Stock-Based Compensation - Summary of Stock Option Activity (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]	'	'	'
Options outstanding, beginning of period, Number of Options	1,158,646	1,128,304	1,265,054
Options granted, Number of Options	3,000	57,500	4,000
Options exercised, Number of Options	-1,714	'	-14,903
Options forfeited, Number of Options	-86,216	-27,158	-125,847
Options outstanding, end of period, Number of Options	1,073,716	1,158,646	1,128,304
Options outstanding, beginning of period, Weighted-Average Exercise Price	$13.64	$14.03	$13.59
Options fully vested and expected to vest, Number of Options	1,003,477	'	'
Options granted, Weighted-Average Exercise Price	$10.22	$6.87	$5.78
Options exercisable, Number of Options	701,156	'	'
Options exercised, Weighted-Average Exercise Price	$8.90	'	$6.41
Options forfeited, Weighted-Average Exercise Price	$11.22	$15.33	$10.26
Options outstanding, end of period, Weighted-Average Exercise Price	$13.83	$13.64	$14.03
Options fully vested and expected to vest, Weighted Average Exercise Price	$13.95	'	'
Options exercisable, end of period, Weighted-Average Exercise Price	$14.68	'	'
Options outstanding, Weighted-Average Contractual Term	'3 years 8 months 12 days	'	'
Options fully vested and expected to vest, Weighted-Average Contractual Term	'3 years 8 months 12 days	'	'
Options exercisable, Weighted-Average Contractual Term	'2 years 10 months 24 days	'	'
Options outstanding, Aggregate Intrinsic Value	$268	'	'
Options fully vested and expected to vest, Aggregate Intrinsic Value	250	'	'
Options exercisable, Aggregate Intrinsic Value	$39	'	'

StockBased_Compensation_Summar3

Stock-Based Compensation - Summary of Restricted Stock Awards Activity (Detail) (Restricted Stock [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of RSAs outstanding, beginning of period	209,384	179,152	197,210
Number of RSAs, granted	59,500	54,500	18,500
Number of RSAs, vested	-28,543	-24,268	-35,835
Number of RSAs, forfeited	'	'	-723
Number of RSAs, outstanding, end of period	240,341	209,384	179,152
Weighted-Average Grant date Stock price, RSAs outstanding, beginning of period	$9.62	$10.53	$11.01
Weighted-Average Grant date Stock price, RSAs granted	$10.22	$6.87	$5.78
Weighted-Average Grant date Stock price, RSAs vested	$9.66	$10.19	$10.75
Weighted-Average Grant date Stock price, RSAs forfeited	'	'	$10.36
Weighted-Average Grant date Stock price, RSAs outstanding, end of period	$9.76	$9.62	$10.53

Employee_Benefit_Plan_Addition

Employee Benefit Plan - Additional Information (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2007
	Officers	Dec. 31, 2012	Dec. 31, 2011	Officers	Officers
Schedule Of Sale Of Subsidiary [Abstract]	'	'	'	'	'
Company's contributions for the plan	$1,219	$1,144	$983	'	'
Eligibility period to participate in the plan	'6 months	'	'	'	'
Additional number of executive officers entered into salary continuation agreements	'	'	'	5	'
Number of executive officers entered into salary continuation agreements due to acquisition	4	'	'	'	'
Company expensed for the accrual of future salary continuation benefits	569	501	532	'	'
Salary continuation benefits payable	3,143	2,597	2,096	'	'
Asset and the related deferred compensation payable	1,355	1,158	1,034	'	'
Administration expenses of the trust	$5	'	'	'	'
Number of Valrico state bank executive officers pursuant to acquisition entered into rabbi trust agreement	'	'	'	'	2

Parent_Company_Only_Financial_2

Parent Company Only Financial Statements - Condensed Balance Sheet (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets:	'	'	'	'
Cash and due from banks	$21,581	$19,160	'	'
Prepaid expenses and other assets	13,138	16,858	'	'
Total assets	2,415,567	2,363,240	2,284,459	'
Liabilities:	'	'	'	'
Accounts payable and accrued expenses	18,262	15,312	'	'
Corporate debenture	16,996	16,970	'	'
Total liabilities	2,142,188	2,089,709	'	'
Stockholders' Equity:	'	'	'	'
Additional paid-in capital	229,544	228,952	'	'
Retained earnings	48,018	36,979	'	'
Accumulated other comprehensive income	-4,484	7,299	'	'
Total stockholders' equity	273,379	273,531	262,633	252,249
Total liabilities and stockholders' equity	2,415,567	2,363,240	'	'
Parent Company [Member]	'	'	'	'
Assets:	'	'	'	'
Cash and due from banks	966	270	'	'
Inter-company receivable from bank subsidiary	45,703	2,000	'	'
Investment in wholly-owned bank subsidiary	241,990	272,691	'	'
Investment in other wholly-owned subsidiary	2,322	13,945	'	'
Prepaid expenses and other assets	3,995	5,838	'	'
Total assets	294,976	294,744	'	'
Liabilities:	'	'	'	'
Accounts payable and accrued expenses	4,601	4,243	'	'
Corporate debenture	16,996	16,970	'	'
Total liabilities	21,597	21,213	'	'
Stockholders' Equity:	'	'	'	'
Common stock	301	301	'	'
Additional paid-in capital	229,544	228,952	'	'
Retained earnings	48,018	36,979	'	'
Accumulated other comprehensive income	-4,484	7,299	'	'
Total stockholders' equity	273,379	273,531	'	'
Total liabilities and stockholders' equity	$294,976	$294,744	'	'

Parent_Company_Only_Financial_3

Parent Company Only Financial Statements - Condensed Statements of Operations (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]	'	'	'
Interest expense	($5,885)	($8,481)	($12,207)
Income before provision for income taxes	17,753	14,530	11,328
Income tax benefit	5,510	4,625	3,419
Net income	12,243	9,905	7,909
Parent Company [Member]	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'
Dividend income	45,725	12,282	18,789
Other income	'	5	559
Interest expense	-602	-835	-448
Operating expenses	-3,538	-3,142	-3,480
Income before equity in net earnings of subsidiaries	41,585	8,310	15,420
Equity in undistributed (losses) income in subsidiaries	-31,040	147	-8,660
Income before provision for income taxes	10,545	8,457	6,760
Income tax benefit	-1,697	-1,448	-1,149
Net income	$12,243	$9,905	$7,909

Parent_Company_Only_Financial_4

Parent Company Only Financial Statements - Condensed Statements of Cash Flows (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:	'	'	'
Net income	$12,243	$9,905	$7,909
Adjustments to reconcile net income to net cash used in operating activities:	'	'	'
Stock based compensation expense	609	631	705
Net cash flows used in (from) operating activities	14,259	8,037	-1,857
Cash flows from investing activities:	'	'	'
Net cash from bank acquisition	'	81,061	77,577
Net cash flows provided by (from) investing activities	-27,006	329,571	81,963
Cash flows from financing activities:	'	'	'
Stock options exercised, net of tax benefit	'	'	38
Dividends paid to shareholders	-1,204	-1,203	-1,201
Net cash flows used in (from) financing activities	50,888	-351,955	-106,526
Net increase (decrease) in cash and cash equivalents	38,141	-14,347	-26,420
Cash and cash equivalents at beginning of year	136,748	151,095	177,515
Cash and cash equivalents at end of year	174,889	136,748	151,095
Parent Company [Member]	'	'	'
Cash flows from operating activities:	'	'	'
Net income	12,243	9,905	7,909
Adjustments to reconcile net income to net cash used in operating activities:	'	'	'
Equity in net earnings of subsidiaries	-14,686	-12,429	-10,129
Increase in payables and accrued expenses	371	893	466
Decrease (increase) in other assets	1,843	-1,164	-837
Stock based compensation expense	107	142	203
Net cash flows used in (from) operating activities	-122	-2,653	-2,388
Cash flows from investing activities:	'	'	'
Inter-company receivables from subsidiary banks	-43,703	17,000	-3,550
Net cash from bank acquisition	'	'	5,020
Cash payments to VSB shareholders	'	'	-151
Investment in subsidiaries	'	-28,000	-14,450
Dividends from bank subsidiaries	34,000	10,000	1,170
Dividends from nonbank subsidiary	11,725	2,282	17,619
Net cash flows provided by (from) investing activities	2,022	1,282	5,658
Cash flows from financing activities:	'	'	'
Stock options exercised, net of tax benefit	'	'	96
Dividends paid to shareholders	-1,204	-1,203	-1,201
Net cash flows used in (from) financing activities	-1,204	-1,203	-1,105
Net increase (decrease) in cash and cash equivalents	696	-2,574	2,165
Cash and cash equivalents at beginning of year	270	2,844	679
Cash and cash equivalents at end of year	$966	$270	$2,844

Credit_Commitments_Summary_of_

Credit Commitments - Summary of Credit Commitments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Standby Letters of Credit [Member]	'	'
Loss Contingencies [Line Items]	'	'
Credit Commitments, Total	$6,769	$2,885
Available Lines of Credit [Member]	'	'
Loss Contingencies [Line Items]	'	'
Credit Commitments, Total	143,199	108,525
Unfunded Loan Commitments - Fixed [Member]	'	'
Loss Contingencies [Line Items]	'	'
Credit Commitments, Total	9,004	14,509
Unfunded Loan Commitments - Variable [Member]	'	'
Loss Contingencies [Line Items]	'	'
Credit Commitments, Total	$14,179	$32,298

Basic_and_Diluted_Earnings_Per2

Basic and Diluted Earnings Per Share - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]	'	'	'
Anti dilutive stock options	1,110,465	1,143,598	1,128,304

Basic_and_Diluted_Earnings_Per3

Basic and Diluted Earnings Per Share - Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Computations (Detail) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Numerator for basic and diluted earnings per share:	'	'	'
Net income	$12,243	$9,905	$7,909
Net income available for common shareholders	$12,243	$9,905	$7,909
Denominator:	'	'	'
Denominator for basic earnings per share - weighted-average shares	30,102,777	30,073,959	30,034,573
Effect of dilutive securities:	'	'	'
Employee stock based compensation awards	117,350	67,904	4,614
Denominator for diluted earnings per share - adjusted weighted-average shares	30,220,127	30,141,863	30,039,187
Basic earnings per share	$0.41	$0.33	$0.26
Diluted earnings per share	$0.41	$0.33	$0.26

Reportable_Segments_Reconcilia

Reportable Segments - Reconciliation of Reportable Segment Revenues, Expenses and Profit (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'
Interest income	$100,378	$94,950	$82,243
Interest expense	-5,885	-8,481	-12,207
Net interest income	94,493	86,469	70,036
Provision for loan losses	76	-9,220	-45,991
Other non interest income	33,946	59,261	101,972
Other non interest expense	-110,762	-121,980	-114,689
Income before provision for income taxes	17,753	14,530	11,328
Income tax (provision) benefit	-5,510	-4,625	-3,419
Net income (loss)	12,243	9,905	7,909
Total assets	2,415,567	2,363,240	2,284,459
Operating Segments [Member] \| Commercial and Retail Banking [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Interest income	97,504	90,899	78,373
Interest expense	-5,263	-7,617	-11,711
Net interest income	92,241	83,282	66,662
Provision for loan losses	76	-9,220	-45,985
Other non interest income	13,536	23,550	74,347
Other non interest expense	-86,726	-90,671	-87,327
Income before provision for income taxes	19,127	6,941	7,697
Income tax (provision) benefit	-6,140	-1,722	-2,021
Net income (loss)	12,987	5,219	5,676
Total assets	2,278,777	2,204,176	2,115,552
Operating Segments [Member] \| Correspondent Banking and Bond Sales Division [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Interest income	2,874	4,051	3,870
Interest expense	-20	-28	-48
Net interest income	2,854	4,023	3,822
Provision for loan losses	'	'	-6
Other non interest income	20,410	35,707	27,066
Other non interest expense	-20,498	-28,168	-23,883
Income before provision for income taxes	2,766	11,562	6,999
Income tax (provision) benefit	-1,067	-4,351	-2,633
Net income (loss)	1,699	7,211	4,366
Total assets	132,821	153,289	164,660
Corporate Overhead and Administration [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Interest expense	-602	-836	-448
Net interest income	-602	-836	-448
Provision for loan losses	'	'	0
Other non interest income	'	4	559
Other non interest expense	-3,538	-3,141	-3,479
Income before provision for income taxes	-4,140	-3,973	-3,368
Income tax (provision) benefit	1,697	1,448	1,235
Net income (loss)	-2,443	-2,525	-2,133
Total assets	294,976	294,744	282,954
Elimination Entries [Member]	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	($291,007)	($288,969)	($278,707)

Reportable_Segments_Additional

Reportable Segments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2013
	Location
	County
	Subsidiary
Segment Reporting Measurement Disclosures [Abstract]	'
Number of non bank subsidiary	1
Number of counties in which company operates	18
Number of bank locations	55

Business_Combinations_Addition

Business Combinations - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended			0 Months Ended	3 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jan. 27, 2012	Jun. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 20, 2012	Mar. 31, 2012	Jan. 27, 2012	Jun. 30, 2012	Dec. 31, 2013
		Branch	Office			Central FL [Member]	Central FL [Member]	FGB [Member]	First Guaranty Bank and Trust [Member]	First Guaranty Bank and Trust [Member]
			Institution				Branch		Office	Branch
										Office
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of failed financial institutions purchased	'	'	2	'	'	'	'	'	'	'
Merger and acquisition related expenses	'	'	$722	$2,714	$7,696	$583	'	$1,463	'	'
Number of branch offices acquired	'	6	'	'	'	'	3	'	2	'
Aggregate number of branch offices	'	'	'	'	'	'	4	'	'	8
Business acquisition, branch offices not acquired	'	'	'	'	'	'	'	'	'	6
Percentage of deposit held in the holding company ( by FGB)	'	75.00%	'	'	'	'	'	'	'	'
Number of existing branches	'	2	'	'	'	'	'	'	'	'
Number of banking offices purchased at market price	'	'	2	'	'	'	'	'	'	'
Tax deductible period of goodwill and other intangible	'	'	'15 years	'	'	'	'	'	'	'
Loss share agreement reimbursement percentage on covered assets	'	'	80.00%	'	'	'	'	'	'	'
Period for loss share agreements applicable to single family residential mortgage loans	'	'	'10 years	'	'	'	'	'	'	'
Period for loss share agreements applicable to commercial loans and other covered assets	'	'	'5 years	'	'	'	'	'	'	'
Number of years for recoveries through Company reimbursement to FDIC	'	'	'8 years	'	'	'	'	'	'	'
Factors used on acquired loans in business combination - 60 days or more past due	'	'	'60 days or more past due	'	'	'	'	'	'	'
Factors used on acquired loans in business combination - Frequency of 30 days past due or 60 - 90 days past due	'	'	'More than five 30 day past due notices or had any 60 day or 90 day past due notices during the loan term	'	'	'	'	'	'	'
Maximum period for refinement of fair values	'1 year	'	'	'	'	'	'	'	'	'

Business_Combinations_Fair_Val

Business Combinations - Fair Values of the Assets Acquired and Liabilities Assumed at the Date of Acquisition (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Jan. 27, 2012	Dec. 31, 2011	Dec. 31, 2010	Jan. 27, 2012	Jan. 20, 2012	Jan. 20, 2012	Jan. 27, 2012	Jan. 27, 2012
In Thousands, unless otherwise specified						Core Deposits [Member]	Central FL [Member]	Central FL [Member]	FGB [Member]	FGB [Member]
								Core Deposits [Member]		Core Deposits [Member]
Assets:	'	'	'	'	'	'	'	'	'	'
Cash due from banks, Federal Reserve Bank ("FRB") and Federal Home Loan Bank ("FHLB")	'	'	$77,642	'	'	'	$4,870	'	$77,642	'
Federal funds sold	'	'	'	'	'	'	8,550	'	'	'
Securities available for sale	'	'	3,500	'	'	'	1,942	'	3,500	'
Loans covered by FDIC loss share agreements	'	'	181,882	'	'	'	31,376	'	181,882	'
Loans not covered by FDIC loss share agreements	'	'	961	'	'	'	239	'	961	'
Covered repossessed real estate owned ("OREO")	'	'	15,318	'	'	'	2,347	'	15,318	'
FDIC indemnification asset	'	'	70,070	'	'	'	15,018	'	70,070	'
FHLB stock and FRB stock	'	'	1,627	'	'	'	168	'	1,627	'
Goodwill	44,924	44,924	6,890	38,035	38,035	'	'	'	6,890	'
Core deposit intangible	'	'	'	'	'	1,521	'	375	'	1,521
Trust intangible	'	'	'	'	'	'	'	'	1,580	'
Other assets	'	'	2,742	'	'	'	1,109	'	2,742	'
Total assets acquired	'	'	363,733	'	'	'	65,994	'	363,733	'
Liabilities:	'	'	'	'	'	'	'	'	'	'
Deposits	'	'	353,099	'	'	'	65,209	'	353,099	'
FHLB advances	'	'	10,060	'	'	'	'	'	10,060	'
Other liabilities	'	'	574	'	'	'	332	'	574	'
Total liabilities assumed	'	'	363,733	'	'	'	65,541	'	363,733	'
Net assets acquired (bargain purchase gain)	'	'	'	'	'	'	453	'	'	'
Deferred tax impact	'	'	'	'	'	'	-170	'	'	'
Net assets acquired, including deferred tax impact	'	'	'	'	'	'	$283	'	'	'

Business_Combinations_Contract

Business Combinations - Contractually Required Principal and Interest Cash Payments, Management's Estimates of Expected Total Cash Payments (Detail) (Central FL [Member], USD $)	Jan. 20, 2012
In Thousands, unless otherwise specified	Jan. 20, 2012
Business Acquisition [Line Items]	'
Contractually required principal and interest	$363,130
Non-accretable difference	-115,165
Cash flows expected to be collected	247,965
Accretable yield	-33,507
Total acquired loans	214,458
Type A Loans [Member]	'
Business Acquisition [Line Items]	'
Contractually required principal and interest	118,393
Non-accretable difference	-57,632
Cash flows expected to be collected	60,761
Accretable yield	-2,950
Total acquired loans	57,811
Type B Loans [Member]	'
Business Acquisition [Line Items]	'
Contractually required principal and interest	244,737
Non-accretable difference	-57,533
Cash flows expected to be collected	187,204
Accretable yield	-30,557
Total acquired loans	$156,647

Business_Combinations_Schedule

Business Combinations- Schedule of Measurement Period Adjustments (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Jan. 27, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jan. 27, 2012	Dec. 31, 2011	Dec. 31, 2010
Assets:	'	'	'	'	'
Cash due from banks, Federal Reserve Bank and Federal Home Loan Bank	'	'	$77,642	'	'
Securities available for sale	'	'	3,500	'	'
Loans covered by FDIC loss share agreements	'	'	181,882	'	'
Loans not covered by FDIC loss share agreements	'	'	961	'	'
Covered repossessed real estate owned	'	'	15,318	'	'
FDIC indemnification asset	'	'	70,070	'	'
FHLB stock	'	'	1,627	'	'
Goodwill	44,924	44,924	6,890	38,035	38,035
Other assets	'	'	2,742	'	'
Total assets acquired	'	'	363,733	'	'
Liabilities:	'	'	'	'	'
Deposits	'	'	353,099	'	'
FHLB advances	'	'	10,060	'	'
Other liabilities	'	'	574	'	'
Total liabilities assumed	'	'	363,733	'	'
Core Deposits [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Core deposit intangible	'	'	1,521	'	'
Trust [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Core deposit intangible	'	'	1,580	'	'
As Initially Reported [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Cash due from banks, Federal Reserve Bank and Federal Home Loan Bank	'	'	77,642	'	'
Securities available for sale	'	'	3,500	'	'
Loans covered by FDIC loss share agreements	'	'	171,949	'	'
Loans not covered by FDIC loss share agreements	'	'	961	'	'
Covered repossessed real estate owned	'	'	15,318	'	'
FDIC indemnification asset	'	'	78,148	'	'
FHLB stock	'	'	1,627	'	'
Goodwill	'	'	8,745	'	'
Other assets	'	'	2,742	'	'
Total assets acquired	'	'	363,733	'	'
Liabilities:	'	'	'	'	'
Deposits	'	'	353,099	'	'
FHLB advances	'	'	10,060	'	'
Other liabilities	'	'	574	'	'
Total liabilities assumed	'	'	363,733	'	'
As Initially Reported [Member] \| Core Deposits [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Core deposit intangible	'	'	1,521	'	'
As Initially Reported [Member] \| Trust [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Core deposit intangible	'	'	1,580	'	'
Measurement Period Adjustments [Member]	'	'	'	'	'
Assets:	'	'	'	'	'
Loans covered by FDIC loss share agreements	'	'	9,933	'	'
FDIC indemnification asset	'	'	-8,078	'	'
Goodwill	'	'	($1,855)	'	'

Derivatives_Additional_Informa

Derivatives - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments Notional And Fair Value [Line Items]	'	'
Investment securities with a fair value	$6,140	$3,398
Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]	'	'
Derivative Instruments Notional And Fair Value [Line Items]	'	'
Notional amount	$91,058	$25,133

Derivatives_Summary_Informatio

Derivatives - Summary Information about the Derivative Instruments (Detail) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative [Line Items]	'	'
Fair value of interest rate swap derivatives (asset)	$2,603	$1,131
Fair value of interest rate swap derivatives (liability)	2,496	2,014
Interest Rate Swap [Member] \| Not Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Notional amount	91,058	25,133
Weighted average pay rate on interest-rate swaps	4.34%	5.03%
Weighted average receive rate on interest rate swaps	1.71%	2.00%
Weighted average maturity (years)	'10 years	'12 years
Fair value of interest rate swap derivatives (asset)	2,603	1,131
Fair value of interest rate swap derivatives (liability)	$2,496	$2,014

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Jan. 27, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Jan. 17, 2014

Jan. 29, 2014

Jan. 17, 2014

Core Deposits [Member]

First Southern Bank [Member]

Subsequent Event [Member]

Core Deposits [Member]

First Southern Bank [Member]

Gulfstream Bancshares, Inc. [Member]

Location

Common Stock [Member]

Purchased Credit-Impaired [Member]

Business Acquisition [Line Items]

Increase in total assets

23.00%

Increase in total deposits

23.00%

Goodwill on the acquisition

$44,924,000

$6,890,000

$38,035,000

$31,104,000

Outstanding common stock acquired percentage

100.00%

Exchanged price

$14.65

Exchanged ratio for share

3.012

Common stock

82,040,000

Loans at fair value

359,583,000

Net Outstanding principal balance

18,267,000

Estimated discount to outstanding principal balance

4.80%

Percentage of loans acquired

24.40%

Loans with credit deficiencies

30,068,000

Loan relationship balances

'Greater than $500

Deposit intangible asset

4,173,000

Estimated economic life

'10 years

Conversion shares of common stock

0.3

Conversion price of common stock

3,000

Assets

2,415,567,000

2,363,240,000

2,284,459,000

1,093,256,000

Loan

635,492,000

Deposits

$2,056,231,000

$1,997,232,000

$882,732,000

Number of banking locations

Subsequent_Events_Summary_of_P

Subsequent Events - Summary of Purchase Price Calculation (Detail) (Subsequent Event [Member], Gulfstream Bancshares, Inc. [Member], USD $)	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Jan. 17, 2014
Subsequent Event [Member] \| Gulfstream Bancshares, Inc. [Member]	'
Business Acquisition [Line Items]	'
Number of shares of Gulfstream common stock outstanding at January 16, 2014	1,569,364
Gulfstream preferred shares that converted to Gulfstream common shares upon the change in control	155,629
Total Gulfstream common shares including converted preferred shares	1,724,993
Per share exchange ratio	3.012
Number of shares of CenterState common stock - as converted	5,195,679
Multiplied by CenterState common stock price on January 16, 2014	$10.23
Fair value of CenterState common stock issued	$53,152
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	25,271
Total Stock Consideration	53,152
Total Cash Consideration	25,271
Total consideration paid to Gulfstream common shareholders	78,423
Fair value of current Gulfstream stock options converted to CenterState stock options	3,617
Total purchase price	$82,040

Subsequent_Events_Summary_of_P1

Subsequent Events - Summary of Preliminary Estimates of Fair Value of Assets Purchased, Excluding Goodwill and Liabilities Assumed (Detail) (USD $)	Jan. 27, 2012	Jan. 17, 2014
In Thousands, unless otherwise specified		Subsequent Event [Member]
		Gulfstream Bancshares, Inc. [Member]
Business Acquisition [Line Items]	'	'
Cash and cash items	$77,642	$102,278
Loans	'	329,515
Purchased credit impaired loans	'	30,068
Loan held for sale	'	247
Investments	'	61,816
Interest receivable	'	1,087
Branch real estate	'	5,519
Furniture and fixtures	'	262
FHLB stock	'	885
Bank owned life insurance	'	4,939
Other real estate owned	'	3,365
Core deposit intangible	'	4,173
Deferred income tax asset, net	'	6,908
Other assets	'	4,094
Total assets acquired	363,733	554,156
Deposits	'	478,999
Federal Home loan advances	'	5,708
Repurchase agreements	'	7,576
Interest payable	'	125
Official checks outstanding	'	826
Trust Preferred Security	'	6,745
Other liabilities	'	3,241
Total liabilities assumed	363,733	503,220
Net assets acquired, excluding goodwill	'	$51,936

Subsequent_Events_Summary_of_C

Subsequent Events - Summary of Contractually Required Principal and Interest Cash Payments for Purchased Credit Impaired Loans (Detail) (Purchased Credit-Impaired [Member], Subsequent Event [Member], Gulfstream Bancshares, Inc. [Member], USD $)	Jan. 17, 2014
In Thousands, unless otherwise specified	Jan. 17, 2014
Purchased Credit-Impaired [Member] \| Subsequent Event [Member] \| Gulfstream Bancshares, Inc. [Member]	'
Business Acquisition [Line Items]	'
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

Subsequent_Events_Information_

Subsequent Events - Information with Respect to Fair Value of Acquired Loans and their Unpaid Principal Balance (Detail) (Subsequent Event [Member], Gulfstream Bancshares, Inc. [Member], USD $)

Jan. 17, 2014

Dec. 31, 2013

In Thousands, unless otherwise specified

Book Balance [Member]

Fair Value [Member]

Single Family Residential Real Estate [Member]

Commercial Real Estate [Member]

Land, Development, Construction [Member]

Commercial Loans [Member]

Consumer and Other Loans [Member]

Purchased Credit-Impaired [Member]

Single Family Residential Real Estate [Member]

Commercial Real Estate [Member]

Land, Development, Construction [Member]

Commercial Loans [Member]

Consumer and Other Loans [Member]

Purchased Credit-Impaired [Member]

Business Acquisition [Line Items]

Carrying value and Fair value of acquired loans

$359,583

$377,850

$33,506

$185,250

$30,387

$85,940

$2,112

$40,655

$359,583

$32,319

$183,189

$27,704

$84,203

$2,100

$30,068

Subsequent_Events_ProForma_Fin

Subsequent Events - Pro-Forma Financial Information Includes Adjustments for Interest Income on Loans Acquired, Amortization of Intangibles (Detail) (Subsequent Event [Member], Gulfstream Bancshares, Inc. [Member], USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Subsequent Event [Member] \| Gulfstream Bancshares, Inc. [Member]	'	'
Business Acquisition [Line Items]	'	'
Net interest income	$113,450	$107,448
Net income available to common shareholders	$16,377	$15,060
EPS- basic	$0.46	$0.43
EPS- diluted	$0.46	$0.43