SouthState (SSB) 10-K 27 Feb 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 26, 2015	Jun. 30, 2014
Document and Entity Information
Entity Registrant Name	SOUTH STATE Corp
Entity Central Index Key	764038
Document Type	10-K
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$1,427,741,000
Entity Common Stock, Shares Outstanding		24,156,759
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Cash and cash equivalents:
Cash and due from banks	$229,901	$212,473
Interest-bearing deposits with banks	7,456	4,770
Federal funds sold and securities purchased under agreements to resell	180,512	262,218
Total cash and cash equivalents	417,869	479,461
Investment securities:
Securities held to maturity (fair value of $10,233 and $12,891, respectively)	9,659	12,426
Securities available for sale, at fair value	806,766	786,791
Other investments	10,518	13,386
Total investment securities	826,943	812,603
Loans held for sale	60,270	30,586
Loans:
Loans, net	5,680,688	5,652,458
FDIC receivable for loss share agreements	22,161	86,447
Other real estate owned (covered of $16,227, and $27,520, respectively; non-covered of $26,499, and $37,398, respectively)	42,726	64,918
Premises and equipment, net	171,772	188,114
Bank owned life insurance	99,140	97,197
Deferred tax assets	42,692	73,763
Mortgage servicing rights	21,601	20,729
Core deposit and other intangibles	49,239	59,908
Goodwill	317,688	317,688
Other assets	73,438	47,626
Total assets	7,826,227	7,931,498
Deposits:
Noninterest-bearing	1,639,953	1,486,445
Interest-bearing	4,821,092	5,067,699
Total deposits	6,461,045	6,554,144
Federal funds purchased and securities sold under agreements to repurchase	221,541	211,401
Other borrowings	101,210	102,060
Other liabilities	57,511	82,424
Total liabilities	6,841,307	6,950,029
Shareholders' equity:
Preferred stock-$.01 par value; authorized 10,000,000 shares; 65,000, and 0 shares issued and outstanding, respectively		1
Common stock - $2.50 par value; authorized 40,000,000 shares; 24,150,702 and 24,104,124 shares issued and outstanding, respectively	60,377	60,260
Surplus	701,764	762,354
Retained earnings	223,156	168,577
Accumulated other comprehensive income (loss)	-377	-9,723
Total shareholders' equity	984,920	981,469
Total liabilities and shareholders' equity	7,826,227	7,931,498
Non-acquired loans
Loans:
Loans, gross	3,467,826	2,865,216
Less allowance for non-acquired loan losses	-34,539	-34,331
Credit impaired | Acquired loans
Loans:
Loans, net	919,402	1,220,638
Non-Credit impaired | Acquired loans
Loans:
Loans, net	$1,327,999	$1,600,935

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Investment securities:
Securities held to maturity, fair value (in dollars)	$10,233	$12,891
Other real estate owned
Other real estate owned, covered (in dollars)	16,227	27,520
Other real estate owned, non-covered (in dollars)	26,499	37,398
Shareholders' equity:
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	65,000
Preferred stock, shares outstanding	0	65,000
Common stock, par value (in dollars per share)	$2.50	$2.50
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	24,150,702	24,104,124
Common stock, shares outstanding	24,150,702	24,104,124
Non-Credit impaired | Acquired loans
Loans:
Covered loans	9,376	7,824
Non-covered	$1,318,623	$1,593,111

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Interest income:
Loans, including fees	$319,882	$268,596	$174,807
Investment securities:
Taxable	15,758	11,073	7,577
Tax-exempt	4,589	4,773	3,947
Federal funds sold and securities purchased under agreements to resell	1,793	1,906	1,157
Total interest income	342,022	286,348	187,488
Interest expense:
Deposits	9,301	8,489	8,424
Federal funds purchased and securities sold under agreements to repurchase	357	426	451
Other borrowings	6,004	4,072	2,219
Total interest expense	15,662	12,987	11,094
Net interest income	326,360	273,361	176,394
Provision for loan losses	6,590	1,886	13,619
Net interest income after provision for loan losses	319,770	271,475	162,775
Noninterest income:
Service charges on deposit accounts	36,244	30,561	23,815
Bankcard services income	29,634	21,844	14,173
Trust and investment services income	18,344	12,661	6,360
Mortgage banking income	16,170	9,149	12,545
Securities gains (losses), net	-2		189
Amortization of FDIC indemnification assets	-21,895	-29,535	-20,773
Other	16,201	9,040	4,974
Total noninterest income	94,696	53,720	41,283
Noninterest expense:
Salaries and employee benefits	158,432	122,096	76,308
Merger expense	23,940	22,534	10,214
Net occupancy expense	22,459	17,590	11,608
Information services expense	15,844	14,470	11,092
Furniture and equipment expense	13,271	12,112	9,115
OREO expense and loan related	11,833	13,727	12,003
Bankcard expense	8,563	6,550	4,062
Amortization of intangibles	8,320	6,081	2,172
Supplies, printing and postage expense	6,937	4,891	3,234
FDIC assessment and other regulatory charges	5,432	5,034	3,875
Professional fees	4,960	4,210	2,681
Advertising and marketing	4,156	4,532	2,735
Other	18,891	16,794	9,799
Total noninterest expense	303,038	250,621	158,898
Earnings:
Income before provision for income taxes	111,428	74,574	45,160
Provision for income taxes	35,991	25,355	15,128
Net income	75,437	49,219	30,032
Preferred stock dividends	1,073	1,354
Net income available to common shareholders	$74,364	$47,865	$30,032
Earnings per common share:
Basic (in dollars per share)	$3.11	$2.41	$2.04
Diluted (in dollars per share)	$3.08	$2.38	$2.03
Dividends per common share (in dollars per share)	$0.82	$0.74	$0.69
Weighted-average common shares outstanding:
Basic (in shares)	23,897	19,866	14,698
Diluted (in shares)	24,154	20,077	14,796

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements of Comprehensive Income
Net income	$75,437	$49,219	$30,032
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	17,843	-23,069	4,739
Tax effect	-6,804	8,732	-1,793
Reclassification adjustment for gains included in net income	2		-189
Tax effect	-1		72
Net of tax amount	11,040	-14,337	2,829
Unrealized gains (losses) on derivative financial instruments qualifying as cash flow hedges:
Unrealized holding gains (losses) arising during period	-252	283	-403
Tax effect	96	-108	153
Reclassification adjustment for losses included in interest expense	310	307	293
Tax effect	-118	-117	-112
Net of tax amount	36	365	-69
Change in pension and retiree medical plan obligation:
Change in pension and retiree medical plan obligation during period	-3,727	5,804	139
Tax effect	1,526	-2,249	-87
Reclassification adjustment for actuarial (gains) losses included in salaries and employee benefits	761	482	471
Tax effect	-290	-164	-158
Net of tax amount	-1,730	3,873	365
Other comprehensive income (loss), net of tax	9,346	-10,099	3,125
Comprehensive income	$84,783	$39,120	$33,157

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (USD $)	Preferred Stock	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2011		$35,099,000	$233,232,000	$116,198,000	($2,749,000)	$381,780,000
Balance (in shares) at Dec. 31, 2011		14,039,422
Comprehensive income (loss):
Net income				30,032,000		30,032,000
Other comprehensive income (loss), net of tax					3,125,000	3,125,000
Comprehensive income						33,157,000
Cash dividends declared on common stock at $.74, $.74 and $.69 for the years ending December 2014, 2013 and 2012 respectively				-10,244,000		-10,244,000
Stock options exercised		129,000	1,115,000			1,244,000
Stock options exercised (in shares)		51,887
Employee stock purchases		55,000	665,000			720,000
Employee stock purchases (in shares)		22,135
Restricted stock awards		106,000	-106,000
Restricted stock awards (in shares)		42,674
Common stock repurchased		-58,000	-778,000			-836,000
Common stock repurchased (in shares)		-23,532
Share-based compensation expense			1,741,000			1,741,000
Common stock issued in Peoples Bancorporation acquisition		2,507,000	28,638,000			31,145,000
Common stock issued in Peoples Bancorporation acquisition (in shares)		1,002,741
Common stock issued for the Savannah acquisition		4,506,000	64,336,000			68,842,000
Common stock issued for the Savannah acquisition (in shares)		1,802,137
Balance at Dec. 31, 2012		42,344,000	328,843,000	135,986,000	376,000	507,549,000
Balance (in shares) at Dec. 31, 2012		16,937,464
Comprehensive income (loss):
Net income				49,219,000		49,219,000
Other comprehensive income (loss), net of tax					-10,099,000	-10,099,000
Comprehensive income						39,120,000
Cash dividends on Series A preferred stock at annual dividend rate of 5				-1,354,000		-1,354,000
Cash dividends declared on common stock at $.74, $.74 and $.69 for the years ending December 2014, 2013 and 2012 respectively				-15,274,000		-15,274,000
Stock options exercised		163,000	1,722,000			1,885,000
Stock options exercised (in shares)		65,555
Employee stock purchases		41,000	740,000			781,000
Employee stock purchases (in shares)		16,907
Restricted stock awards		208,000	-208,000
Restricted stock awards (in shares)		83,110
Common stock repurchased		-42,000	-891,000			-933,000
Common stock repurchased (in shares)		-17,186
Share-based compensation expense			3,322,000			3,322,000
Common stock issued for First Financial Holdings, Inc. acquisition		17,546,000	363,827,000			381,373,000
Common stock issued for First Financial Holdings, Inc. acquisition (in shares)		7,018,274
Preferred stock assumed in First Financial Holdings, Inc. acquisition	1,000		64,999,000			65,000,000
Preferred stock assumed in First Financial Holdings, Inc. acquisition (in shares)	65,000
Balance at Dec. 31, 2013	1,000	60,260,000	762,354,000	168,577,000	-9,723,000	981,469,000
Balance (in shares) at Dec. 31, 2013	65,000	24,104,124				24,104,124
Comprehensive income (loss):
Net income				75,437,000		75,437,000
Other comprehensive income (loss), net of tax					9,346,000	9,346,000
Comprehensive income						84,783,000
Cash dividends on Series A preferred stock at annual dividend rate of 5				-1,073,000		-1,073,000
Cash dividends declared on common stock at $.74, $.74 and $.69 for the years ending December 2014, 2013 and 2012 respectively				-19,785,000		-19,785,000
Stock options exercised		57,000	652,000			709,000
Stock options exercised (in shares)		22,878
Employee stock purchases		38,000	788,000			826,000
Employee stock purchases (in shares)		14,863
Restricted stock awards		59,000	-59,000
Restricted stock awards (in shares)		23,560
Repurchase of Series A preferred stock	-1,000		-64,999,000			-65,000,000
Repurchase of Series A preferred stock (in shares)	-65,000
Common stock repurchased		-37,000	-880,000			-917,000
Common stock repurchased (in shares)		-14,723
Share-based compensation expense			3,908,000			3,908,000
Balance at Dec. 31, 2014		$60,377,000	$701,764,000	$223,156,000	($377,000)	$984,920,000
Balance (in shares) at Dec. 31, 2014		24,150,702				24,150,702

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements of Changes in Shareholders' Equity
Cash dividends declared, per share	$16.50	$20.83
Cash dividends declared, per share (in dollars per share)	$0.82	$0.74
Annual dividend rate (as a percent)	6.91%	5.00%

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income	$75,437	$49,219	$30,032
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,180	17,495	12,092
Provision for loan losses	6,590	1,886	13,619
Deferred income taxes	25,805	2,067	3,322
(Gain) loss on sale of securities available for sale	2		-189
Share-based compensation expense	3,908	3,322	1,741
Amortization on FDIC indemnification asset	21,895	29,535	20,773
Accretion on acquired loans	-10,247	-6,725
Loss on sale of assets	1,390	4	10
Gain on sale of OREO	-7,561	-13,357	-8,482
Net amortization of premium on investment securities	4,091	3,917	3,893
OREO write downs	10,685	8,109	13,190
Originations and purchases of mortgage loans for sale	-746,042	-846,772	-908,034
Proceeds from mortgage loans for sale	716,346	901,330	888,564
Net change in:
Accrued interest receivable	-3,361	953	5,252
Prepaid assets	5,214	1,738	1,239
FDIC Loss Share Receivable	42,391	52,081	95,707
Miscellaneous other assets	-4,687	-3,320	-894
Accrued interest payable	-2,421	-3,916	20,113
Accrued income taxes	-20,809	40,317	-12,502
Miscellaneous other liabilities	-21,159	4,522	-8,921
Net cash provided by operating activities	118,647	242,405	170,525
Cash flows from investing activities:
Proceeds from sales of investment securities available for sale	9,315	177,468	29,301
Proceeds from maturities and calls of investment securities held to maturity	2,265	3,014	1,129
Proceeds from maturities and calls of investment securities available for sale	151,888	142,163	101,582
Proceeds from sales of other investment securities	3,279	17,019	13,251
Purchases of investment securities available for sale	-167,334	-286,912	-130,078
Purchases of other investment securities	-8,318
Proceeds from sale of credit card loans	20,350
Net (increase) decrease in customer loans	-73,639	133,475	-2,061
Net cash received from acquisitions		173,503	97,093
Purchases of premises and equipment	-16,108	-13,751	-8,387
Proceeds from sale of OREO	64,883	72,380	75,970
Proceeds from sale of premises and equipment	3,922	64	58
Net cash provided by (used in) investing activities	-9,497	418,423	177,858
Cash flows from financing activities:
Net decrease in deposits	-94,455	-264,673	-142,812
Net increase (decrease) in federal funds purchased and securities sold under agreements to repurchase and other short-term borrowings	10,140	-27,220	35,152
Repayment of FHLB advances	-1,187	-255,443	-22,168
Common stock issuance	826	781	720
Preferred stock redeemed	-65,000
Common stock repurchase	-917	-933	-836
Dividends paid on preferred stock	-1,073	-1,354
Dividends paid on common stock	-19,785	-15,274	-10,244
Stock options exercised	709	1,885	1,244
Net cash used in financing activities	-170,742	-562,231	-138,944
Net increase (decrease) in cash and cash equivalents	-61,592	98,597	209,439
Cash and cash equivalents at beginning of period	479,461	380,864	171,425
Cash and cash equivalents at end of period	417,869	479,461	380,864
Cash paid for:
Interest	16,739	14,063	11,303
Income taxes	36,017	16,358	6,504
Acquisitions:
Fair value of tangible assets acquired		3,018,522	1,321,482
Other intangible assets acquired		59,931	15,833
Liabilities assumed		2,847,637	1,261,563
Net identifiable assets acquired over (under) liabilities assumed		230,816	75,752
Common stock issued in acquisition		381,423	100,014
Preferred stock issued in acquisition		65,000
Real estate acquired in full or in partial settlement of loans (covered of $16,555, $20,559, and $26,310, respectively; and non-covered of $29,260, $33,761, and $25,958, respectively)	$45,815	$54,320	$46,589

Consolidated_Statements_of_Cas1

Consolidated Statements of Cash Flows (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Statements of Cash Flows
Real estate acquired in full or in partial settlement of loans, covered	$16,555	$20,559	$26,310
Real estate acquired in full or in partial settlement of loans, non-covered	$29,260	$33,761	$25,958

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 1—Summary of Significant Accounting Policies
	Nature of Operations
	South State Corporation (the "Company") is a bank holding company whose principal activity is the ownership and management of its wholly-owned subsidiary, South State Bank (the "Bank"). The Bank also operates Minis & Co., Inc. and First Southeast 401k Fiduciaries, both wholly owned registered investment advisors; and First Southeast Investor Services, a wholly owned limited service broker dealer. The Bank provides general banking services within 19 counties in South Carolina, four counties in North Carolina, ten counties in northeast Georgia and two coastal Georgia counties. The accounting and reporting policies of the Company and its consolidated subsidiary conform to accounting principles generally accepted in the United States of America. There are seven unconsolidated subsidiaries of the Company that were established for the purpose of issuing in the aggregate $98.0 million of trust preferred securities. The seven capital trusts include the following: SCBT Capital Trust I at $12.0 million; SCBT Capital Trust II at $8.0 million; SCBT Capital Trust III at $20.0 million; TSB Statutory Trust I at $3.0 million; SAVB Capital Trust I at $6.0 million; SAVB Capital Trust II at $4.0 million and FFCH Capital Trust I at $45.0 million. See Note 30—Subsequent Events for information about the redemption of the FFCH Capital Trust I trust preferred securities.
	On June 30, 2014, First Financial Holdings, Inc. changed its name to South State Corporation, and SCBT, the wholly-owned bank subsidiary of South State Corporation, changed its name to South State Bank. Unless otherwise mentioned or unless the context requires otherwise, references herein to "South State," the "Company" "we," "us," "our" or similar references mean South State Corporation and its consolidated subsidiaries. References to the "Bank" means South State Bank, a South Carolina banking corporation.
	Basis of Consolidation
	The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Assets held by the Company in trust are not assets of the Company and are not included in the accompanying consolidated financial statements.
	Segments
	The Company, through its subsidiary, provides a broad range of financial services to individuals and companies in South Carolina, North Carolina and Georgia. These services include demand, time and savings deposits; lending and credit card servicing; ATM processing; and wealth management and trust services. While the Company's decision makers monitor the revenue streams of the various financial products and services, operations are managed and financial performance is evaluated on an organization-wide basis. Accordingly, the Company's banking and finance operations are not considered by management to constitute more than one reportable operating segment.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, fair values of assets and liabilities acquired in business combinations, loss estimates related to loans and other real estate acquired which are covered under loss share agreements with the FDIC, evaluating other-than-temporary-impairment of investment securities, goodwill impairment tests and valuation of deferred tax assets.
	With the FDIC loss share agreements, the Company must comply with certain administration requirements of the covered assets and indemnification is limited for the assets covered. Actions by the Company can result in assets becoming uncovered under the loss share provisions, and interpretation of the provisions of the loss share agreement may be different in a way which results in losses increasing and impacting the Company adversely.
	In connection with the determination of the allowance for loan losses, management has identified specific loans as well as adopted a policy of providing amounts for loan valuation purposes which are not identified with any specific loan but are derived from actual loss experience ratios, loan types, loan volume, economic conditions and industry standards. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, regulatory agencies, as an integral part of the examination process, periodically review the banking subsidiary's allowance for loan losses. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination.
	Concentrations of Credit Risk
	The Company's subsidiary grants agribusiness, commercial, and residential loans to customers throughout South Carolina, North Carolina and Georgia. Although the subsidiary has a diversified loan portfolio, a substantial portion of their borrowers' abilities to honor their contracts is dependent upon economic conditions within South Carolina, North Carolina, Georgia and the surrounding regions.
	The Company considers concentrations of credit to exist when, pursuant to regulatory guidelines, the amounts loaned to a multiple number of borrowers engaged in similar business activities which would cause them to be similarly impacted by general economic conditions represents 25% of total risk-based capital, or $188.9 million at December 31, 2014. Based on this criteria, the Company had four such credit concentrations for non-acquired and acquired non-credit impaired loans at December 31, 2014, including $301.4 million of loans to lessors of residential buildings, $395.1 million of loans to lessors of nonresidential buildings (except mini-warehouses), $211.0 million of loans to religious organizations, and $249.4 million of loans to offices of physicians, dentists, and other health practitioners.
	Cash and Cash Equivalents
	For the purpose of presentation in the consolidated statements of cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest bearing deposits with banks, purchases of securities under agreements to resell, and federal funds sold. Due from bank balances are maintained in other financial institutions. Federal funds sold are generally purchased and sold for one-day periods, but may, from time to time, have longer terms.
	The Company enters into purchases of securities under agreements to resell substantially identical securities typically for the purpose of obtaining securities on a short-term basis for collateralizing certain customer deposit relationships. Securities purchased under agreements to resell at December 31, 2014 and 2013 consisted of U.S. government-sponsored entities and agency mortgage-backed securities. It is the Company's policy to take possession of securities purchased under agreements to resell. The securities are delivered into the Company's account maintained by a third-party custodian designated by the Company under a written custodial agreement that explicitly recognizes the Company's interest in the securities. The Company monitors the market value of the underlying securities, including accrued interest, which collateralizes the related receivable on agreements to resell. At December 31, 2014, these agreements were considered to be cash equivalents with maturities of three months or less.
	Investment Securities
	Debt securities that management has the positive intent and ability to hold to maturity are classified as "held to maturity" and carried at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as "available for sale" and carried at fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income.
	Purchase premiums and discounts are recognized in interest income using methods approximating the interest method over the terms of the securities. Declines in the fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. Gains and losses realized on sales of securities available for sale are determined using the specific identification method. The Company evaluates securities for other-than-temporary impairment ("OTTI") at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. In estimating OTTI losses, management considers: (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. (see Note 3—Investment Securities).
	Other investments include stock acquired for regulatory purposes and investments in unconsolidated subsidiaries. Stock acquired for regulatory purposes include Federal Home Loan Bank of Atlanta ("FHLB") stock. These securities do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Investments in unconsolidated subsidiaries represent a minority investment in SCBT Capital Trust I, SCBT Capital Trust II, SCBT Capital Trust III, TSB Statutory Trust I, SAVB Capital Trust I, SAVB Capital Trust II, and FFCH Capital Trust. These investments are recorded at cost and the Company receives quarterly dividend payments on these investments.
	Loans Held for Sale
	Loans originated and intended for sale are carried at the lower of cost or estimated fair value in the aggregate. Estimated fair value is determined on the basis of existing forward commitments, or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held-for-sale are sold to investors either under guaranteed delivery or with the best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor.
	Loans
	Loans that management has originated and has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their unpaid principal balances, less unearned income and net of any deferred loan fees and costs. Unearned income on installment loans is recognized as income over the terms of the loans by methods that generally approximate the interest method. Interest on other loans is calculated by using the simple interest method on daily balances of the principal amount outstanding.
	Loans are placed on nonaccrual status depending upon the type of loan, the past due status, and the collection activities in progress. Well-secured loans, in the process of collection, are allowed to remain on an accrual basis until they become 120 days past due. Partially secured loans are written down to the collateral value and placed on nonaccrual status on or before becoming 120 days past due. Unsecured commercial loans are charged off on or before the date they become 120 days past due. Closed end consumer loans and open end consumer loans are charged off or written down to the fair value of collateral on or before becoming 120 and 180 days past due, respectively. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is charged against interest revenue on loans. Interest payments are applied to the principal balance on nonaccrual loans.
	A loan is considered impaired when, in management's judgment, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines when loans become impaired through its normal loan administration and review functions. Loans identified as nonaccrual are potentially impaired loans. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired, provided that management expects to collect all amounts due, including interest accrued at the contractual interest rate for the period of delay. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest income recognition on non-acquired impaired loans is discontinued when the loans meet the criteria for nonaccrual status described above. Large groups of smaller balance homogeneous non-acquired loans are collectively evaluated for loss and a general reserve is established accordingly.
	Acquired credit impaired loans are initially recorded at a discount to recognize the difference in the fair value of the loans and the contractual balance. The discount includes a component to recognize the absolute difference between the contractual value and the amount expected to be collected (total cash flow) as well as a component to recognize the net present value of that future amount to be collected. The net present value component is accretable into income, and therefore generates a yield on all acquired credit impaired loans, regardless of past due status. Therefore, acquired credit impaired loans are considered to be accruing loans. Acquired credit impaired loans that are greater than 90 days past due are placed into the greater than 90 days past due and still accruing category when analyzing the aging status of the loan portfolio. See Note 4—Loans and Allowance for Loan Losses for further detail.
	Troubled Debt Restructurings ("TDRs")
	The Bank designates loan modifications as TDRs when, for economic or legal reasons related to the borrower's financial difficulties, it grants a concession to the borrower that it would not otherwise consider. Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of modification are initially classified as accruing TDRs at the date of modification, if the note is reasonably assured of repayment and performance is in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the modification date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is well documented credit evaluation of the borrower's financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months).
	Allowance for Loan Losses
	The allowance for loan losses is established for estimated loan losses through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated on a regular basis by management and is based upon management's periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower's ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available.
	The allowance consists of general and specific reserves. The general reserves are determined, for loans not identified as impaired, by applying loss percentages to the portfolio that are based on historical loss experience and management's evaluation and "risk grading" of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. The specific reserves are determined, for impaired loans, on a loan-by-loan basis based on management's evaluation of the Company's exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. Management evaluates nonaccrual loans and TDRs regardless of accrual status to determine whether or not they are impaired. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The Company requires updated appraisals on at least an annual basis for impaired loans that are collateral dependent. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve.
	Although management uses available information to estimate losses on loans, because of uncertainties associated with local, regional, and national economic conditions, collateral values, and future cash flows on impaired loans, and subjection of the model to the review of regulatory authorities, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated.
	Other Real Estate Owned
	Other real estate owned ("OREO"), consisting of properties obtained through foreclosure or through a deed in lieu of foreclosure in satisfaction of loans and property originally acquired for further branch expansion (formerly classified as premises and equipment), is reported at the lower of cost or fair value, determined on the basis of current valuations obtained principally from independent sources, adjusted for estimated selling costs. At the time of foreclosure or initial possession of collateral, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses.
	Subsequent declines in the fair value of OREO below the new cost basis are recorded through valuation adjustments. Significant judgments and complex estimates are required in estimating the fair value of other real estate, and the period of time within which such estimates can be considered current is significantly shortened during periods of market volatility. In response to market conditions and other economic factors, management may utilize liquidation sales as part of its problem asset disposition strategy. As a result of the significant judgments required in estimating fair value and the variables involved in different methods of disposition, the net proceeds realized from sales transactions could differ significantly from the valuations used to determine the fair value of OREO. Management reviews the value of OREO each quarter and adjusts the values as appropriate. Revenue and expenses from OREO operations as well as gains or losses on sales and any subsequent adjustments to the value are recorded as OREO expense and loan related expense, a component of non-interest expense.
	Business Combinations and Method of Accounting for Loans Acquired
	The Company accounts for its acquisitions under Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. No allowance for loan losses related to the acquired loans is recorded on the acquisition date because the fair value of the loans acquired incorporates assumptions regarding credit risk. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in FASB ASC Topic 820, Fair Value Measurements and Disclosures, exclusive of the loss share agreements with the Federal Deposit Insurance Corporation (the "FDIC"). The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest and other cash flows.
	Acquired credit-impaired loans are accounted for under the accounting guidance for loans and debt securities acquired with deteriorated credit quality, found in FASB ASC Topic 310-30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality, formerly American Institute of Certified Public Accountants ("AICPA") Statement of Position (SOP) 03-3, Accounting for Certain Loans or Debt Securities Acquired in a Transfer, and initially measured at fair value, which includes estimated future credit losses expected to be incurred over the life of the loans. Loans acquired in business combinations with evidence of credit deterioration since origination and for which it is probable that all contractually required payments will not be collected are considered to be credit impaired. Evidence of credit quality deterioration as of purchase dates may include information such as past-due and nonaccrual status, borrower credit scores and recent loan to value percentages. The Company considers expected prepayments and estimates the amount and timing of expected principal, interest and other cash flows for each loan or pool of loans meeting the criteria above, and determines the excess of the loan's scheduled contractual principal and contractual interest payments over all cash flows expected to be collected at acquisition as an amount that should not be accreted (nonaccretable difference). The remaining amount, representing the excess of the loan's or pool's cash flows expected to be collected over the fair value for the loan or pool of loans, is accreted into interest income over the remaining life of the loan or pool (accretable difference). In accordance with FASB ASC Topic 310-30, the Company aggregated acquired loans that have common risk characteristics into pools within the following loan categories: commercial loans greater than or equal to $1 million—CBT, commercial real estate, commercial real estate—construction and development, residential real estate, residential real estate junior lien, home equity, consumer, commercial and industrial, and single pay. Single pay loans consist of those instruments for which repayment of principal and interest is expected at maturity. Commercial loans greater than or equal to $1 million-CBT consist of commercial loans acquired through the Community Bank and Trust ("CBT") FDIC-assisted transaction that had outstanding contractual principal balances of $1.0 million or more at the date of acquisition.
	Loans acquired through business combinations that do not meet the specific criteria of FASB ASC Topic 310-30, but for which a discount is attributable at least in part to credit quality are generally accounted for under this guidance. As a result, related discounts are recognized subsequently through accretion based on the expected cash flow of the acquired loans. Certain acquired loans, such as lines of credit (consumer and commercial) and loans for which there was no discount attributable to credit are accounted for in accordance with FASB ASC Topic 310-20, where the discount is accreted through earnings based on estimated cash flows over the estimated life of the loan.
	Subsequent to the acquisition date, increases in cash flows expected to be received in excess of the Company's initial estimates are reclassified from nonaccretable difference to accretable difference and are accreted into interest income on a level-yield basis over the remaining life of the loan. Decreases in cash flows expected to be collected are recognized as impairment through the provision for loan losses. For acquired loans subject to a loss sharing agreement with the FDIC, the FDIC indemnification asset will be adjusted prospectively in a similar, consistent manner with increases and decreases in expected cash flows.
	Probable and significant increases in cash flows (in a loan pool where an allowance for acquired loan losses was previously recorded) reduces the remaining allowance for acquired loan losses before recalculating the amount of accretable yield percentage for the loan pool in accordance with ASC 310-30. For covered loan pools, the reduction of the remaining allowance for acquired loan losses would be offset by the impact to the indemnification asset depending on each covered portfolio's loss share coverage (80%, in the case of Habersham Bank ("Habersham") and BankMeridian, N.A. ("BankMeridian"); 95% in the case of CBT; 80% up to $110.0 million and 95% thereafter, in the case of Cape Fear Bank ("Cape Fear"); or 80% up to $55.0 million, 0% from $55.0 million to $65.0 million, and 60% thereafter, in the case of Plantation Federal Bank ("Plantation")).
	FDIC Indemnification Asset
	The FDIC indemnification asset is measured separately from the related covered asset as it is not contractually embedded in the assets and is not transferable with the assets should the Company choose to dispose of them. Fair value was estimated at the acquisition date using projected cash flows related to the loss sharing agreements based on the expected reimbursements for losses and the applicable loss sharing percentages. These expected reimbursements do not include reimbursable amounts related to future covered expenditures. These cash flows were discounted to reflect the uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. The Company will offset any recorded provision for loan losses related to acquired-covered loans by recording an increase in the FDIC indemnification asset by the increase in expected cash flow, which is the result of a decrease in expected cash flow of acquired loans. An increase in cash flows on acquired loans results in a decrease in cash flows on the FDIC indemnification asset, which is recognized in the future as negative accretion through non-interest income over the shorter of the remaining life of the FDIC indemnification asset or the underlying loans.
	The Company incurs expenses related to the assets indemnified by the FDIC, and pursuant to the loss share agreement certain costs are reimbursable by the FDIC. These costs are included in monthly and quarterly claims made by the Company. The estimates of reimbursements are netted against these covered expenses in the income statement.
	Premises and Equipment
	Land is carried at cost. Office equipment, furnishings, and buildings are carried at cost less accumulated depreciation computed principally on the declining-balance and straight-line methods over the estimated useful lives of the assets. Leasehold improvements are amortized on the straight-line method over the shorter of the estimated useful lives of the improvements or the terms of the related leases including lease renewals only when the Company is reasonably assured of the aggregate term of the lease. Additions to premises and equipment and major replacements are added to the accounts at cost. Maintenance and repairs and minor replacements are charged to expense when incurred. Gains and losses on routine dispositions are reflected in current operations.
	Intangible Assets
	Intangible assets consist of goodwill, core deposit intangibles, client list intangibles, and noncompetition agreement ("noncompete") intangibles that result from the acquisition of other banks or branches from other financial institutions. Core deposit intangibles represent the value of long-term deposit relationships acquired in these transactions. Client list intangibles represent the value of long-term client relationships for the wealth and trust management business. Noncompete intangibles represent the value of key personnel relative to various competitive factors such as ability to compete, willingness or likelihood to compete, and feasibility based upon the competitive environment, and what the Bank could lose from competition. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset's fair value. The goodwill impairment analysis is a two-step test. The first step, used to identify potential impairment, involves comparing the reporting unit's estimated fair value to its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill assigned to that reporting unit is considered not to be impaired. If the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment of goodwill assigned to that reporting unit.
	If required, the second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. The implied fair value of goodwill is determined in a manner similar to the amount of goodwill calculated in a business combination, by measuring the excess of the estimated fair value of the reporting unit, as determined in the first step, over the aggregate estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit, and the loss establishes a new basis in the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Management has determined that the Company has one reporting unit.
	The Company evaluated the carrying value of goodwill as of April 30, 2014, its annual test date, and determined that no impairment charge was necessary. Additionally, should the Company's future earnings and cash flows decline and/or discount rates increase, an impairment charge to goodwill and other intangible assets may be required. There have been no events subsequent to the April 30, 2014 evaluation that caused the Company to perform an interim review of the carrying value of goodwill.
	Core deposit intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the deposit accounts acquired (generally 7 to 13 years) on either (1) the straight-line method or (2) an accelerated basis method which reasonably approximates the anticipated benefit stream from the accounts. The estimated useful lives are periodically reviewed for reasonableness.
	Noncompete intangibles, included in core deposit and other intangibles are amortized over the life of the underlying noncompete agreements (generally 2 to 3 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness.
	Client list intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the client lists acquired (generally 15 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness.
	Mortgage Servicing Rights
	The Company has a mortgage loan servicing portfolio with related mortgage servicing rights. Mortgage servicing rights ("MSRs") represent the present value of the future net servicing fees from servicing mortgage loans. Servicing assets and servicing liabilities must be initially measured at fair value, if practicable. For subsequent measurements, an entity can choose to measure servicing assets and liabilities either based on fair value or lower of cost or market. The Company uses the fair value measurement option for MSRs.
	The methodology used to determine the fair value of MSRs is subjective and requires the development of a number of assumptions, including anticipated prepayments of loan principal. Fair value is determined by estimating the present value of the asset's future cash flows utilizing estimated market-based prepayment rates and discount rates, interest rates and other economic factors and assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Risks inherent in the MSRs valuation include higher than expected prepayment rates and/or delayed receipt of cash flows. The value of MSRs is significantly affected by mortgage interest rates available in the marketplace, which influence mortgage loan prepayment speeds. In general, during periods of declining interest rates, the value of mortgage servicing rights declines due to increasing prepayments attributable to increased mortgage refinance activity. Conversely, during periods of rising interest rates, the value of servicing rights generally increases due to reduced refinance activity. MSRs are carried at fair value with changes in fair value recorded as a component of mortgage banking income each period in the Consolidated Statement of Income. The Company also uses derivative instruments to mitigate the income statement effect of changes in fair value due to changes in valuation inputs and assumptions of its MSRs.
	Transfer of Financial Assets
	With the FFHI merger in July of 2013, the Company acquired a portfolio of residential mortgages serviced for others and began to sell mortgages directly to Fannie Mae. Prior to this merger, all of the Company's loan sales were to third party investors on the secondary market with servicing rights released. Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over the transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company, (2) 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 (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. The Company reviews all sales of loans by evaluating specific terms in the sales documents and believes that the criteria discussed above to qualify for sales treatment have been met as loans have been transferred for cash and the notes and mortgages for all loans in each sale are endorsed and assigned to the transferee. As stated in the commitment document, the Buyer has no recourse with these loans except in the case of fraud. In certain sales, mortgage servicing rights may be retained and in other programs potential loss exposure from the credit enhancement obligation may be retained, both of which are evaluated and appropriately measured at the date of sale.
	The Company packages most of the 30 year fixed rate conforming mortgage loans as securities to investors issued through Fannie Mae and sold to third-party investors or sells them as cash forward mandatory commitments to Fannie Mae. The Company records loan securitizations or cash forwards as a sale when the transferred loans are legally isolated from its creditors and the accounting criteria for a sale are met. Gains or losses recorded on loan securitizations and cash forwards depend in part on the net carrying amount of the loans sold, which is allocated between the loans sold and retained interests based on their relative fair values at the date of sale. The Company generally retains mortgage servicing rights on residential mortgage loans sold in the secondary market. Loans transferred to held for sale with the intention of disposal through a bulk loan sale will be sold with servicing released. Since quoted market prices are not typically available, the fair value of retained interests is estimated through the services of a third-party service provider to determine the net present value of expected future cash flows. Such models incorporate management's best estimates of key variables, such as prepayment speeds and discount rates that would be used by market participants and are appropriate for the risks involved. Gains and losses incurred on loans sold to third-party investors are included in mortgage banking income in the Consolidated Statements of Operations.
	Advertising Costs
The Company expenses advertising costs as they are incurred and advertising communication costs the first time the advertising takes place. The Company may establish accruals for anticipated advertising expenses within the course of a fiscal year.
Comprehensive Income
Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, such as (1) unrealized gains and losses on available-for-sale securities (2) unrealized gains and losses on effective portions of derivative financial instruments accounted for as cash flow hedges and (3) net change in unrecognized amounts related to pension and post-retirement benefits, are reported as a separate component of the equity section of the balance sheet. Such items, along with net income, are components of total comprehensive income (see Consolidated Statements of Comprehensive Income on page F-7).
Employee Benefit Plans
The Company's defined benefit pension and other post retirement plans are accounted for in accordance with FASB ASC 715, Compensation—Retirement Benefits, which requires the Company to recognize the funded status in its statement of financial position. See Note 17 for information regarding the defined benefit pension plan and Note 18 for information regarding our post-retirement benefits plan. The expected costs of the plans are being expensed over the period that employees provide service.
The Employee Stock Purchase Plan ("ESPP") allows for a look-back option which establishes the purchase price as an amount based on the lesser of the stock's market price at the grant date or its market price at the exercise (or purchase) date. For the shares issued in exchange for employee services under the plan, the Company accounts for the plan under the FASB ASC 718, Compensation—Stock Compensation, in which the fair value measurement method is used to estimate the fair value of the equity instruments, based on the share price and other measurement assumptions at the grant date. See Note 19 for the amount the Company recognized as expense for the years ended December 31, 2014, 2013 and 2012.
Income Taxes
Income taxes are provided for the tax effects of the transactions reported in the accompanying consolidated financial statements and consist of taxes currently due plus deferred taxes related primarily to differences between the tax basis and financial statement basis of gains on acquisitions, available-for-sale securities, allowance for loan losses, write downs of OREO properties, accumulated depreciation, net operating loss carryforwards, accretion income, deferred compensation, intangible assets, and pension plan and post-retirement benefits. The deferred tax assets and liabilities represent the future tax return consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred tax assets and liabilities are reflected at income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.
The Company recognizes interest and penalties accrued relative to unrecognized tax benefits in its respective federal or state income taxes accounts. As of December 31, 2014 and 2013, there were no material accruals for uncertain tax positions. The Company and its subsidiary file a consolidated United States federal income tax return, as well as income tax returns for its subsidiary in the state of South Carolina, Georgia, and North Carolina, Florida, Virginia, Alabama, and Mississippi. The Company's filed income tax returns are no longer subject to examination by taxing authorities for years before 2010.
Earnings Per Share
Basic earnings per share ("EPS") represents income available to common shareholders divided by the weighted-average number of shares outstanding during the year. Diluted earnings per share reflects additional shares that would have been outstanding if dilutive potential shares had been issued. Potential shares that may be issued by the Company relate solely to outstanding stock options, restricted stock (non-vested shares), and warrants, and are determined using the treasury stock method. Under the treasury stock method, the number of incremental shares is determined by assuming the issuance of stock for the outstanding stock options and warrants, reduced by the number of shares assumed to be repurchased from the issuance proceeds, using the average market price for the year of the Company's stock. Weighted-average shares for the basic and diluted EPS calculations have been reduced by the average number of unvested restricted shares.
Derivative Financial Instruments
The Company's interest rate risk management strategy incorporates the use of a derivative financial instrument, specifically an interest rate swap, to essentially convert a portion of its variable-rate debt to a fixed rate. Cash flows related to variable-rate debt will fluctuate with changes in an underlying rate index. When effectively hedged, the increases or decreases in cash flows related to the variable-rate debt will generally be offset by changes in cash flows of the derivative instrument designated as a hedge. This strategy is referred to as a cash flow hedge.
In addition, the Company acquired two interest rate swap contracts through the merger transaction with Savannah. These derivatives are not designated as hedges and are not speculative in nature. One of the derivatives is an interest rate swap that was executed with a commercial borrower to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. This interest rate swap was simultaneously hedged by executing an offsetting interest rate swap that was entered into with a third party to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest.
During 2013, the Company acquired derivatives contracts through the merger transaction with FFHI. These instruments are a part of the Company's risk management strategy for its mortgage banking activities. These derivative instruments are used to hedge both the value of the mortgage servicing rights and the mortgage pipeline and are not designated as hedges and are not speculative in nature. The derivative instruments that are used to hedge the value of the mortgage servicing rights include financial forwards, futures contracts, and options written and purchased, while when-issued securities and mandatory cash forward trades are typically used to hedge the mortgage pipeline. These instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate.
By using derivative instruments, the Company is exposed to credit and market risk. If the counterparty fails to perform, credit risk is equal to the fair value gain in a derivative. When the fair value of a derivative contract is positive, this situation generally indicates that the counterparty is obligated to pay the Company, and, therefore, creates a repayment risk for the Company. When the fair value of a derivative contract is negative, the Company is obligated to pay the counterparty and, therefore, has no repayment risk. The Company minimizes the credit risk in derivative instruments by entering into transactions with high-quality counterparties that are reviewed periodically by the Company.
The Company's derivative activities are monitored by its Asset-Liability Management Committee as part of that committee's oversight of the Company's asset/liability and treasury functions. The Company's Asset-Liability Management Committee is responsible for implementing various hedging strategies that are developed through its analysis of data from financial simulation models and other internal and industry sources. The resulting hedging strategies are then incorporated into the overall interest-rate risk management process.
The Company recognizes the fair value of derivatives as assets or liabilities in the financial statements. The accounting for the changes in the fair value of a derivative depends on the intended use of the derivative instrument at inception. The change in fair value of the effective portion of cash flow hedges is accounted for in other comprehensive income rather than net income. Changes in fair value of derivative instruments that are not intended as a hedge are accounted for in the net income in the period of the change (see Note 28—Derivative Financial Instruments for further disclosure).
Reclassification
Certain amounts previously reported have been reclassified to conform to the current year's presentation. Such reclassifications had no effect on net income and shareholders' equity.
Subsequent Events
The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued (see Note 30—Subsequent Events for further disclosure).
Recent Accounting and Regulatory Pronouncements
In November 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity, a consensus of the FASB Emerging Issues Task Force. This ASU clarifies how current U.S. GAAP should be interpreted in subjectively evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. ASU 2014-16 is effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The adoption of ASU 2014-16 is not expected to have a material impact on the Company's financial statements.
In August 2014, the FASB issued ASU 2014-14, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40)—Classification of Certain Government Guaranteed Mortgage Loans upon Foreclosure ("ASU 2014-14"). ASU 2014-14 provides clarifying guidance related to how creditors classify government-guaranteed loans upon foreclosure. ASU 2014-14 requires that a mortgage loan be derecognized and a separate receivable be recognized upon foreclosure if certain conditions are met. Upon foreclosure, the separate receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. ASU 2014-14 is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2014. The amendments can be applied using either a prospective transition method or a modified retrospective transition method. Early adoption is permitted. The adoption of ASU 2014-14 is not expected to have a material impact on the Company's financial statements.
In June 2014, the FASB issued ASU 2014-12, Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, a consensus of the FASB Emerging Issues Task Force ("ASU 2014-12"). ASU 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU 2014-12 is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2015. An entity may apply the standards (1) prospectively to all share-based payment awards that are granted or modified on or after the effective date, or (2) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Earlier application is permitted. The adoption of ASU 2014-12 is not expected to have a material impact on the Company's financial statements.
In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures ("ASU 2014-11"). ASU 2014-11 aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. ASU 2014-11 is effective for the first interim or annual period beginning after December 15, 2014. In addition the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. Early adoption is prohibited. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but does not expect it to have a material impact.
In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, Topic 606 ("ASU 2014-09"). The new standard's core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under existing guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but the Company does not expect it to have a material impact.
In January 2014, the FASB issued ASU 2014-04, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure, a consensus of the FASB Emerging Issues Task Force ("ASU 2014-04"). ASU 2014-04 clarifies that an in-substance foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (i) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (ii) the borrower conveying all interest in the residential real estate property to the creditor to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. ASU 2014-04 also requires disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in loans collateralized by residential real estate property that are in the process of foreclosure. ASU 2014-04 is effective for public companies for interim and annual periods beginning after December 15, 2014, with early adoption permitted. Once adopted, an entity can elect either (i) a modified retrospective transition method or (ii) a prospective transition method. The modified retrospective transition method is applied by means of a cumulative-effect adjustment to residential mortgage loans and foreclosed residential real estate properties existing as of the beginning of the period for which the amendments of ASU 2014-04 are effective, with real estate reclassified to loans measured at the carrying value of the real estate at the date of adoption and loans reclassified to real estate measured at the lower of net carrying value of the loan or the fair value of the real estate less costs to sell at the date of adoption. The prospective transition method is applied by means of applying the amendments of ASU 2014-04 to all instances of receiving physical possession of residential real estate properties that occur after the date of adoption. The adoption of ASU 2014-04 is not expected to have a material impact on the Company's financial statements.
In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects ("ASU 2014-01"). ASU 2014-01 amends FASB ASC 323, Investments—Equity Method and Joint Ventures, to permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). ASU 2014-01 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2014 and should be applied retrospectively. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but the Company does not expect it to have a material impact.

Mergers_and_Acquisitions

Mergers and Acquisitions	12 Months Ended
	Dec. 31, 2014
Mergers and Acquisitions
Mergers and Acquisitions	Note 2—Mergers and Acquisitions
	The following mergers and acquisitions are referenced throughout this Form 10-K:
	•	Community Bank & Trust ("CBT")—January 29, 2010—Federal Deposit Insurance Corporation ("FDIC") purchase and assumption agreement
	•	Habersham Bank ("Habersham")—February 18, 2011—FDIC purchase and assumption agreement
	•	BankMeridian, N.A. ("BankMeridian")—July 29, 2011—FDIC purchase and assumption agreement
	•	Peoples Bancorporation, Inc. ("Peoples")—April 24, 2012—Whole bank acquisition
	•	The Savannah Bancorp, Inc. ("Savannah")—December 13, 2012—Whole bank acquisition
	•	First Financial Holdings, Inc. ("FFHI")—July 26, 2013—Whole bank acquisition with FDIC purchase and assumption agreements of Cape Fear Bank ("Cape Fear")—April 10, 2009 and Plantation Federal Bank ("Plantation")—April 27, 2012
	"FDIC purchase and assumption agreement" means that only certain assets and liabilities were acquired by the bank from the FDIC. A "whole bank acquisition" means that the two parties in the transaction agreed to the transaction, and there was no involvement of the FDIC. A "whole bank acquisition with FDIC purchase and assumption agreements" means that the two parties in the transaction agreed to the merger, and there were existing FDIC purchase and assumption agreements.
	First Financial Holdings, Inc. Merger
	On July 26, 2013, the Company acquired all of the outstanding common stock of FFHI, of Charleston, South Carolina, the bank holding company for First Federal Bank ("First Federal"), in a stock transaction. FFHI common shareholders received 0.4237 shares of the Company's common stock in exchange for each share of FFHI common stock, resulting in the Company issuing 7,018,274 shares of its common stock. Each outstanding share of FFHI Fixed Rate Cumulative Perpetual Preferred Stock, Series A ("FFHI Preferred Stock"), was converted into the right to receive one share of preferred stock of the Company, designated Series A Fixed Rate Cumulative Perpetual Preferred Stock and having such rights, preferences and privileges as are not materially less favorable than the rights, preferences and privileges of the FFHI Preferred Stock. In total, the purchase price for the FFHI acquisition was $447.0 million including $65.0 million in preferred stock and the value of "in the money" outstanding stock options (i.e., stock options for which the exercise price of the stock option is below the market price of the underlying stock) totaling $530,000. On March 28, 2014, the Company redeemed all 65,000 outstanding shares of the Series A Fixed Rate Cumulative Perpetual Preferred Stock. The shares had a liquidation preference of $1,000 per share and dividends were accruing at 9% per annum.
	The FFHI transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at estimated fair value on the acquisition date.
	The following table presents the assets acquired and liabilities assumed as of July 26, 2013, as recorded by FFHI on the acquisition date and initial and subsequent fair value adjustments.
	(Dollars in thousands)		As Recorded by			Initial			Subsequent			As Recorded
			FFHI			Fair Value			Fair Value			by the Company
						Adjustments			Adjustments
	Assets
	Cash and cash equivalents		$	174,082		$	—		$	—		$	174,082
	Investment securities			313,200			(1,388	)(a)		—			311,812
	Loans held for sale			19,858			6	(b)		—			19,864
	Loans			2,355,527			(92,720	)(b)		12,875	(b)		2,275,682
	Premises and equipment			82,399			(5,435	)(c)		(597	)(c)		76,367
	Intangible assets			7,037			33,738	(d)		(2,542	)(d)		38,233
	Mortgage servicing rights			19,156			—			—			19,156
	Other real estate owned			13,271			(2,065	)(e)		1,972	(e)		13,178
	FDIC receivable for loss sharing agreement			47,459			(18,122	)(f),(k)		(7,624	)(f)		21,713
	Bank owned life insurance			51,513			—			(493	)(m)		51,020
	Deferred tax asset			(5,279	)		42,741	(g)		(4,585	)(g)		32,877
	Other assets			47,257			(6,125	)(h)		4,247	(l)		45,379
	Total assets		$	3,125,480		$	(49,370	)	$	3,253		$	3,079,363
	Liabilities
	Deposits:
	Noninterest-bearing		$	430,517		$	—		$	—		$	430,517
	Interest-bearing			2,083,495			7,801	(i)		—			2,091,296
	Total deposits			2,514,012			7,801			—			2,521,813
	Other borrowings			280,187			21,526	(j)		—			301,713
	Other liabilities			25,584			(2,059	)(k)		(245	)(k)		23,280
	Total liabilities			2,819,783			27,268			(245	)		2,846,806
	Net identifiable assets acquired over (under) liabilities assumed			305,697			(76,638	)		3,498			232,557
	Goodwill			—			217,894			(3,498	)		214,396
	Net assets acquired over liabilities assumed		$	305,697		$	141,256		$	—		$	446,953
	Consideration:
	Common shares issued			7,018,274
	Purchase price per share of the Company's common stock		$	54.34
	Company common stock issued and cash exchanged for fractional shares			381,423
	Cash paid for stock options outstanding			530
	Assumption of preferred stock			65,000
	Fair value of total consideration transferred		$	446,953
	Explanation of fair value adjustments
	(a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date.
	(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by FFHI.
	(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
	(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for credit cards and customer lists.
	(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
	(f)—Adjustment reflects the fair value adjustments to the FDIC receivable for loss sharing agreements based on the Company's evaluation of the losses on the acquired assets covered under loss share agreements with the FDIC net of any clawback.
	(g)—Adjustment to record deferred tax asset related to fair value adjustments.
	(h)—Adjustment reflects uncollectible portion of accrued interest receivable and loan fees receivable.
	(i)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
	(j)—Adjustment reflects the fair value adjustment which was equal to the prepayment fee paid to fully pay off the Federal Home Loan Bank (the "FHLB") advances on July 26, 2013. This fair value adjustment and the fair value adjustment of the junior subordinated debt were determined based upon interest rates.
	(k)—Adjustment reflects the reclassification of the clawback to net against the FDIC receivable, the incremental accrual for employee related benefits, lease liabilities, and adjustment of other miscellaneous accruals.
	(l)—Adjustment reflects the change in insurance-related receivable and increase in the current income tax receivable for the short-period income tax returns filed.
	(m)—Adjustment reflects the fair value adjustments to bank owned life insurance based on the Company's evaluation of the policies.
	The operating results of the Company for the year ended December 31, 2014, include the operating results of the acquired assets and assumed liabilities since the acquisition date of July 26, 2013. Merger and branding related charges of $23.9 million are recorded in the consolidated statement of income and include incremental costs related to closing of certain branches, employment related cost, professional cost (legal, accounting and audit related), travel, printing and supplies, advertising and brand related, and other cost.
	The following table discloses the impact of the merger with FFHI (excluding the impact of merger-related expenses) for the year ended December 31, 2014. The table also presents certain pro forma information as if FFHI had been acquired on January, 1 2012. These results combine the historical results of FFHI in the Company's consolidated statement of income and, while certain adjustments were made for the estimated impact of certain fair value adjustments and other acquisition-related activity, they are not indicative of what would have occurred had the acquisition taken place on January 1, 2013 or January 1, 2012.
Merger-related costs of $22.8 million from the Savannah and FFHI acquisitions are included in the Company's consolidated statements of income for the year ended December 31, 2013, and are not included in the pro forma information below. In particular, no adjustments have been made to the pro forma information to eliminate the provision for loan losses for the years ended December 31, 2013 and 2012 of FFHI in the amount of $6.4 million and $20.1 million, respectively. No adjustments have been made to reduce the impact of any OREO write downs recognized by FFHI in either the years ended December 31, 2013 or 2012. The pro forma results below for December 31, 2013 and 2012 do not reflect the operating cost savings and other business synergies related to the acquisition of FFHI:
(Dollars in thousands)		Actual results for			Pro Forma			Pro Forma
		the Year Ended			Year Ended			Year Ended
		Decmeber 31, 2014			December 31, 2013			December 31, 2012
Total revenues (net interest income plus noninterest income)		$	421,056		$	438,625		$	480,672
Net operating income available to the common shareholder		$	90,573		$	80,624		$	54,529
The Savannah Bancorp, Inc. Acquisition
On December 13, 2012, the Company acquired all of the outstanding common stock of The Savannah Bancorp, Inc. ("Savannah"), a bank holding company based in Savannah, Georgia, in a stock transaction. Savannah common shareholders received 0.2503 shares of the Company's common stock in exchange for each share of Savannah common stock, resulting in the Company issuing 1,802,137 shares of common stock. In total, the purchase price for the Savannah acquisition was $68.9 million including the value of "in the money" outstanding stock options (i.e., stock options for which the exercise price of the stock option is below the market price of the underlying stock) totaling $63,000.
The Savannah transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at fair value on the acquisition date.
The following table presents the assets acquired and liabilities assumed as of December 13, 2012, as recorded by Savannah on the acquisition date and initial and subsequent fair value adjustments.
(Dollars in thousands)		As Recorded by			Fair Value			Subsequent			As Recorded
		Savannah			Adjustments			Fair Value			by the Company
								Adjustments
Assets
Cash and cash equivalents		$	86,244		$	—		$	—		$	86,244
Investment securities			75,460			(1,288	)(a)		31	(a)		74,203
Loans			660,555			(59,196	)(b)		—			601,359
Premises and equipment			12,555			(1,843	)(c)		(260	)(c)		10,452
Intangible assets			3,357			9,546	(d)		15	(d)		12,918
Other real estate owned and repossessed assets			13,934			(5,315	)(e)		(1,513	)(e)		7,106
Bank owned life insurance			6,705			—			—			6,705
Deferred tax asset			(790	)		39,143	(f)		(202	)(f)		38,151
Other assets			8,497			(2,348	)(g)		(893	)(k)		5,256
Total assets		$	866,517		$	(21,301	)	$	(2,822	)	$	842,394
Liabilities
Deposits:
Noninterest-bearing		$	129,902		$	—		$	—		$	129,902
Interest-bearing			619,198			2,530	(h)		—			621,728
Total deposits			749,100			2,530			—			751,630
Federal funds purchased and securities sold under agreements to repurchase			13,491			—			—			13,491
Other borrowings			30,613			(232	)(i)		—			30,381
Other liabilities			8,026			6,657	(j)		(311	)(j)		14,372
Total liabilities			801,230			8,955			(311	)		809,874
Net identifiable assets acquired over (under) liabilities assumed			65,287			(30,256	)		(2,511	)		32,520
Goodwill			—			33,886			2,511			36,397
Net assets acquired over liabilities assumed		$	65,287		$	3,630		$	—		$	68,917
Consideration:
Common shares issued			1,802,137
Purchase price per share of the Company's common stock		$	38.2
Company common stock issued and cash exchanged for fractional shares			68,854
Cash paid for stock options outstanding			63
Fair value of total consideration transferred		$	68,917
Explanation of fair value adjustments
(a)—Adjustment reflects marking the available-for-sale portfolio to fair value as of the acquisition date.
(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by Savannah.
(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for non-compete agreements and customer lists.
(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
(f)—Adjustment to record deferred tax asset related to purchase accounting adjustments.
(g)—Adjustment reflects uncollectible portion of accrued interest receivable.
(h)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
(i)—Adjustment reflects the prepayment fee paid when FHLB advances were completely paid off in December of 2012 and the fair value adjustment based on the Company's evaluation of the junior subordinated debt.
(j)—Adjustment reflects the incremental accrual for employee related benefits, asset sale termination fee and other liabilities.
(k)—Adjustment reflects the adjustment for miscellaneous receivables.
Peoples Bancorporation Acquisition
On April 24, 2012, the Company acquired all of the outstanding common stock of Peoples Bancorporation, Inc. ("Peoples"), a bank holding company based in Easley, South Carolina, in a stock transaction. Peoples common shareholders received 0.1413 shares of the Company's common stock in exchange for each share of Peoples stock, resulting in the Company issuing 1,002,741 common shares at a fair value of $31.1 million. Peoples' preferred stock (including accrued and unpaid dividend) issued under the U.S. Treasury's Troubled Asset Relief Program ("TARP") were purchased by the Company for $13.4 million and retired as part of the merger transaction. In total, the purchase price was $44.5 million including the value of the outstanding options to purchase common stock assumed in the merger.
The Peoples transaction was accounted for using the acquisition method of accounting and, accordingly, assets acquired, liabilities assumed and consideration exchanged were recorded at fair value on the acquisition date.
The following table presents the assets acquired and liabilities assumed as of April 24, 2012, as recorded by Peoples on the acquisition date and initial and subsequent fair value adjustments.
(Dollars in thousands)		As Recorded by			Initial			Subsequent			As Recorded
		Peoples			Fair Value			Fair Value			by the Company
					Adjustments			Adjustments
Assets
Cash and cash equivalents		$	24,459		$	—		$	—		$	24,459
Investment securities			176,334			(442	)(a)		—			175,892
Loans			262,858			(28,613	)(b)		—			234,245
Premises and equipment			10,094			3,240	(c)		(38	)(c)		13,296
Intangible assets			—			2,930	(d)		—			2,930
Other real estate owned and repossessed assets			13,257			(5,341	)(e)		188	(e)		8,104
Deferred tax asset			4,702			11,669	(f)		197	(f)		16,568
Other assets			17,588			(883	)(g)		—			16,705
Total assets		$	509,292		$	(17,440	)	$	347		$	492,199
Liabilities
Deposits:
Noninterest-bearing		$	54,884		$	—		$	—		$	54,884
Interest-bearing			378,781			1,405	(h)		—			380,186
Total deposits			433,665			1,405			—			435,070
Other borrowings			9,542			—			—			9,542
Other liabilities			4,291			2,054	(i)		700	(i)		7,045
Total liabilities			447,498			3,459			700			451,657
Net identifiable assets acquired over (under) liabilities assumed			61,794			(20,899	)		(353	)		40,542
Goodwill			—			3,654			353			4,007
Net assets acquired over (under) liabilities assumed		$	61,794		$	(17,245	)	$	—		$	44,549
Consideration:
Common shares issued			1,002,741
Purchase price per share of the Company's common stock		$	31.06
Company common stock issued and cash exchanged for fractional shares			31,160
Cash paid for stock options outstanding			96
Cash paid for TARP preferred stock			13,293
Fair value of total consideration transferred		$	44,549
Explanation of fair value adjustments
(a)—Adjustment reflects marking the available-for-sale portfolio to fair value as of the acquisition date.
(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by Peoples Bancorporation, Inc.
(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for non-compete agreements.
(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
(f)—Adjustment to record deferred tax asset related to purchase accounting adjustments.
(g)—Adjustment reflects uncollectible portion of accrued interest receivable.
(h)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
(i)—Adjustment reflects the incremental accrual for SERP termination, other employee related benefits, and other liabilities.

Investment_Securities

Investment Securities	12 Months Ended
	Dec. 31, 2014
Investment Securities
Investment Securities	Note 3—Investment Securities
	The following is the amortized cost and fair value of investment securities held to maturity:
	(Dollars in thousands)	Amortized			Gross		Gross			Fair Value
		Cost			Unrealized		Unrealized
					Gains		Losses
	December 31, 2014:
	State and municipal obligations	$	9,659		$	574	$	—		$	10,233
	December 31, 2013:
	State and municipal obligations	$	12,426		$	480	$	(15	)	$	12,891
	The following is the amortized cost and fair value of investment securities available for sale:
	(Dollars in thousands)	Amortized			Gross		Gross			Fair Value
		Cost			Unrealized		Unrealized
					Gains		Losses
	December 31, 2014:
	Government-sponsored entities debt*	$	149,720		$	191	$	(1,714	)	$	148,197
	State and municipal obligations		133,635			4,141		(195	)		137,581
	Residential government-sponsored entities mortgage-backed securities		511,414			7,572		(1,040	)		517,946
	Corporate stocks		3,161			573		(692	)		3,042
		$	797,930		$	12,477	$	(3,641	)	$	806,766
	December 31, 2013:
	Government-sponsored entities debt*	$	149,708		$	185	$	(6,899	)	$	142,994
	State and municipal obligations		142,934			1,798		(4,081	)		140,651
	Residential government-sponsored entities mortgage-backed securities		500,000			4,394		(4,915	)		499,479
	Corporate stocks		3,161			638		(132	)		3,667
		$	795,803		$	7,015	$	(16,027	)	$	786,791
	*—The Company's government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation ("FHLMC") or Freddie Mac, Federal National Mortgage Association ("FNMA") or Fannie Mae, FHLB, and Federal Farm Credit Banks ("FFCB"). Also included in the Company's government-sponsored entities are debt securities offered by the Small Business Administration ("SBA"), which have the full faith and credit backing of the United States Government.
	The following is the amortized cost and fair value of other investment securities:
	(Dollars in thousands)	Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
	December 31, 2014:
	Federal Home Loan Bank stock	$	7,484		$	—	$	—		$	7,484
	Investment in unconsolidated subsidiaries		3,034			—		—			3,034
		$	10,518		$	—	$	—		$	10,518
	December 31, 2013:
	Federal Home Loan Bank stock	$	10,352		$	—	$	—		$	10,352
	Investment in unconsolidated subsidiaries		3,034			—		—			3,034
		$	13,386		$	—	$	—		$	13,386
	The Company has determined that the investment in Federal Home Loan Bank stock is not other than temporarily impaired as of December 31, 2014 and ultimate recoverability of the par value of these investments is probable.
	The amortized cost and fair value of debt and equity securities at December 31, 2014 by contractual maturity are detailed below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without prepayment penalties. Equity securities have no set maturity dates and are classified as "Due after ten years".
		Securities					Securities
		Held to Maturity					Available for Sale
	(Dollars in thousands)	Amortized			Fair		Amortized			Fair
		Cost			Value		Cost			Value
	Due in one year or less	$	—		$	—	$	5,635		$	5,681
	Due after one year through five years		986			1,007		45,013			45,186
	Due after five years through ten years		8,673			9,226		221,752			224,690
	Due after ten years		—			—		525,530			531,209
		$	9,659		$	10,233	$	797,930		$	806,766
	The following table summarizes information with respect to sales of available-for-sale and held-to-maturity securities:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013		2012
	Securities Held to Maturity:
	Sale proceeds	$	411		$	—	$	—
	Gross realized gains	$	—		$	—	$	—
	Gross realized losses		(90	)		—		—
	Net realized loss	$	(90	)	$	—	$	—
	Securities Available for Sale:
	Sale proceeds	$	9,315		$	177,468	$	29,301
	Gross realized gains	$	115		$	—	$	193
	Gross realized losses		(27	)		—		(4	)
	Net realized gain	$	88		$	—	$	189
	The Company had 66 securities with gross unrealized losses at December 31, 2014. Information pertaining to securities with gross unrealized losses at December 31, 2014 and 2013, aggregated by investment category and length of time that individual securities have been in a continuous loss position follows:
		Less Than					Twelve Months or More
Twelve Months
(Dollars in thousands)	Gross			Fair		Gross			Fair
	Unrealized			Value		Unrealized			Value
	Losses					Losses
December 31, 2014:
Securities Held to Maturity
State and municipal obligations	$	—		$	—	$	—		$	—
	$	—		$	—	$	—		$	—
Securities Available for Sale
Government-sponsored entities debt	$	98		$	22,896	$	1,616		$	82,798
State and municipal obligations		3			1,444		192			8,269
Mortgage-backed securities		266			61,508		774			55,960
Corporate stocks		—			—		692			1,538
	$	367		$	85,848	$	3,274		$	148,565
December 31, 2013:
Securities Held to Maturity
State and municipal obligations	$	15		$	486	$	—		$	—
	$	15		$	486	$	—		$	—
Securities Available for Sale
Government-sponsored entities debt	$	6,899		$	112,085
State and municipal obligations		3,901			87,060		180			3,900
Mortgage-backed securities		4,874			263,383		41			2,125
Corporate stocks		132			2,099		—			—
	$	15,806		$	464,627	$	221		$	6,025
The unrealized losses in 2014 declined significantly from the unrealized loss position in 2013. This improvement was in all securities classifications, and was the result of the decline in interest rates throughout the year. In analyzing an issuer's financial condition, management considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, the results of reviews of the issuer's financial condition, and the issuer's anticipated ability to pay the contractual cash flows of the investments. The Company does not currently intend to sell the securities within the portfolio and it is not more-likely-than-not that the Company will be required to sell the debt securities; therefore, management does not consider these investments to be other-than-temporarily impaired at December 31, 2014. Management continues to monitor all of these securities with a high degree of scrutiny. There can be no assurance that the Company will not conclude in future periods that conditions existing at that time indicate some or all of these securities may be sold or are other than temporarily impaired, which would require a charge to earnings in such periods.
Management evaluates securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. Consideration is given to (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. As part of the Company's evaluation of its intent and ability to hold investments for a period of time sufficient to allow for any anticipated recovery in the market, the Company considers its investment strategy, cash flow needs, liquidity position, capital adequacy and interest rate risk position.
At December 31, 2014 and 2013, investment securities with a carrying value of $273.2 million and $261.7 million, respectively, were pledged to secure public funds deposits and for other purposes required and permitted by law. At December 31, 2014 and 2013, the carrying amount of the securities pledged to collateralize repurchase agreements was $160.9 million and $163.2 million, respectively.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2014
Loans and Allowance for Loan Losses
Loans and Allowance for Loan Losses	Note 4—Loans and Allowance for Loan Losses
	The following is a summary of non-acquired loans:
			December 31,
	(Dollars in thousands)		2014			2013
	Non-acquired loans:
	Commercial non-owner occupied real estate:
	Construction and land development		$	364,221		$	299,951
	Commercial non-owner occupied			333,590			291,171
	Total commercial non-owner occupied real estate			697,811			591,122
	Consumer real estate:
	Consumer owner occupied			786,778			548,170
	Home equity loans			283,934			257,139
	Total consumer real estate			1,070,712			805,309
	Commercial owner occupied real estate			907,913			833,513
	Commercial and industrial			405,923			321,824
	Other income producing property			150,928			143,204
	Consumer			189,317			136,410
	Other loans			45,222			33,834
	Total non-acquired loans			3,467,826			2,865,216
	Less allowance for loan losses			(34,539	)		(34,331	)
	Non-acquired loans, net		$	3,433,287		$	2,830,885
	The above table includes deferred fees, net of deferred costs, totaling $2.1 million and $0.8 million at December 31, 2014 and 2013, respectively.
	The following is a summary of acquired non-credit impaired loans accounted for under FASB ASC Topic 310-20, net of the related discount:
			December 31,
	(Dollars in thousands)		2014			2013
	Acquired non-credit impaired loans:
	Commercial non-owner occupied real estate:
	Construction and land development		$	24,099		$	58,396
	Commercial non-owner occupied			49,476			58,598
	Total commercial non-owner occupied real estate			73,575			116,994
	Consumer real estate:
	Consumer owner occupied			646,375			745,481
	Home equity loans			234,949			264,150
	Total consumer real estate			881,324			1,009,631
	Commercial owner occupied real estate			62,065			73,714
	Commercial and industrial			41,130			58,773
	Other income producing property			65,139			74,566
	Consumer			204,766			267,257
	Total acquired non-credit impaired loans		$	1,327,999		$	1,600,935
	In accordance with FASB ASC Topic 310-30, the Company aggregated acquired loans that have common risk characteristics into pools of loan categories as described in the table below.
	The following is a summary of acquired credit impaired loans accounted for under FASB ASC Topic 310-30 (identified as credit impaired at the time of acquisition), net of related discount:
			December 31,
	(Dollars in thousands)		2014			2013
	Acquired credit impaired loans:
	Commercial loans greater than or equal to $1 million-CBT		$	15,813		$	24,109
	Commercial real estate			325,109			439,785
	Commercial real estate—construction and development			65,262			114,126
	Residential real estate			390,244			481,247
	Consumer			85,449			103,998
	Commercial and industrial			44,804			68,862
	Single pay			86			129
	Total acquired credit impaired loans			926,767			1,232,256
	Less allowance for loan losses			(7,365	)		(11,618	)
	Acquired credit impaired loans, net		$	919,402		$	1,220,638
	The table below reflects refined contractual loan payments (principal and interest), estimates of the amounts not expected to be collected (non-accretable difference), accretable yield (interest income recognized over time), and the resulting fair values at the acquisition date for FFHI (July 26, 2013) for loans accounted for using ASC Topic 310-30. These refinements did not change the carrying value of these pools of loans. The changes were the result of the conversion to one loan system and a better projection of the timing of cash flows for these acquired credit impaired loans.
			July 26, 2013
	(Dollars in thousands)		Loans Impaired			Loans			Total
			at Acquisition			Not Impaired
						at Acquisition
	Contractual principal and interest		$	662,273		$	238,166		$	900,439
	Non-accretable difference			(110,069	)		(11,905	)		(121,974	)
	Cash flows expected to be collected			552,204			226,261			778,465
	Accretable difference			(129,834	)		(52,122	)		(181,956	)
	Carrying value		$	422,370		$	174,139		$	596,509
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired credit impaired loans accounted for using ASC 310-30 at the acquisition date for Savannah (December 13, 2012) are as follows:
		December 13, 2012
(Dollars in thousands)		Loans Impaired			Loans			Total
		at Acquisition			Not Impaired
					at Acquisition
Contractual principal and interest		$	155,582		$	483,293		$	638,875
Non-accretable difference			(37,492	)		(9,460	)		(46,952	)
Cash flows expected to be collected			118,090			473,833			591,923
Accretable difference			(8,615	)		(51,466	)		(60,081	)
Carrying value		$	109,475		$	422,367		$	531,842
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired credit impaired loans at the acquisition date for Peoples (April 24, 2012) are as follows:
		April 24, 2012
(Dollars in thousands)		Loans Impaired			Loans			Total
		at Acquisition			Not Impaired
					at Acquisition
Contractual principal and interest		$	56,940		$	250,023		$	306,963
Non-accretable difference			(21,237	)		(16,560	)		(37,797	)
Cash flows expected to be collected			35,703			233,463			269,166
Accretable difference			(4,968	)		(29,953	)		(34,921	)
Carrying value		$	30,735		$	203,510		$	234,245
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting carrying values of acquired credit impaired loans as of December 31, 2014, and 2013 are as follows:
		December 31,
(Dollars in thousands)		2014			2013
Contractual principal and interest		$	1,337,703		$	1,727,417
Non-accretable difference			(104,110	)		(193,645	)
Cash flows expected to be collected			1,233,593			1,533,772
Accretable difference			(306,826	)		(301,516	)
Carrying value		$	926,767		$	1,232,256
Allowance for acquired loan losses		$	(7,365	)	$	(11,618	)
Income on acquired credit impaired loans that are not impaired at the acquisition date is recognized in the same manner as loans impaired at the acquisition date. A portion of the fair value discount on acquired non-impaired loans has been ascribed as an accretable difference that is accreted into interest income over the estimated remaining life of the loans. The remaining nonaccretable difference represents cash flows not expected to be collected.
The following are changes in the carrying value of acquired credit impaired loans:
		Years Ended December 31,
(Dollars in thousands)		2014			2013			2012
Balance at beginning of period		$	1,220,638		$	969,395		$	370,581
Fair value of acquired loans			—			596,509			766,087
Net reductions for payments, foreclosures, and accretion			(299,329	)		(344,348	)		(166,761	)
Change in the allowance for loan losses on acquired loans			(1,907	)		(918	)		(512	)
Balance at end of period, net of allowance for loan losses on acquired loans		$	919,402		$	1,220,638		$	969,395
The following are changes in the carrying amount of accretable difference for acquired credit impaired loans:
		Years Ended December 31,
(Dollars in thousands)		2014			2013			2012
Balance at beginning of period		$	301,516		$	160,849		$	94,600
Addition from the FFHI acquisition			—			181,956			—
Addition from the Peoples acquisition			—			—			34,921
Addition from the Savannah acquisition			—			—			60,081
Interest income			(105,254	)		(104,705	)		(52,628	)
Reclass of nonaccretable difference due to improvement in expected cash flows			112,316			71,136			35,739
Other changes, net			(1,752	)		(7,720	)		(11,864	)
Balance at end of period		$	306,826		$	301,516		$	160,849
On December 13, 2006, the FDIC, the Federal Reserve, and other regulatory agencies collectively revised the banking agencies' 1993 policy statement on the allowance for loan and lease losses to ensure consistency with generally accepted accounting principles in the United States and more recent supervisory guidance. Our loan loss policy adheres to the interagency guidance.
The allowance for loan losses is based upon estimates made by management. We maintain an allowance for loan losses at a level that we believe is appropriate to cover estimated credit losses on individually evaluated loans that are determined to be impaired as well as estimated credit losses inherent in the remainder of our loan portfolio. Arriving at the allowance involves a high degree of management judgment and results in a range of estimated losses. We regularly evaluate the adequacy of the allowance through our internal risk rating system, outside credit review, and regulatory agency examinations to assess the quality of the loan portfolio and identify problem loans. The evaluation process also includes our analysis of current economic conditions, composition of the loan portfolio, past due and nonaccrual loans, concentrations of credit, lending policies and procedures, and historical loan loss experience. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on, among other factors, changes in economic conditions in our markets. In addition, regulatory agencies, as an integral part of their examination process, periodically review our allowances for losses on loans. These agencies may require management to recognize additions to the allowances based on their judgments about information available to them at the time of their examination. Because of these and other factors, it is possible that the allowances for losses on loans may change. The provision for loan losses is charged to expense in an amount necessary to maintain the allowance at an appropriate level.
The allowance for loan losses on non-acquired loans consists of general and specific reserves. The general reserves are determined by applying loss percentages to the portfolio that are based on historical loss experience for each class of loans and management's evaluation and "risk grading" of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. Currently, these adjustments are applied to the non-acquired loan portfolio when estimating the level of reserve required. The specific reserves are determined on a loan-by-loan basis based on management's evaluation of our exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. These are loans classified by management as doubtful or substandard. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve. Loans that are determined to be impaired are provided a specific reserve, if necessary, and are excluded from the calculation of the general reserves.
With the FFHI acquisition, the Company segregated the loan portfolio into performing loans ("non-credit impaired) and purchased credit impaired loans. The performing loans and revolving type loans are accounted for under FASB ASC 310-20, with each loan being accounted for individually. The allowance for loan losses on these loans will be measured and recorded consistent with non-acquired loans. The acquired credit impaired loans will follow the description in the next paragraph.
In determining the acquisition date fair value of purchased loans, and in subsequent accounting, the Company generally aggregates purchased loans into pools of loans with common risk characteristics. Expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows of the pool is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are reclassified from the non-accretable difference to accretable difference and recognized as interest income prospectively. Decreases in expected cash flows after the acquisition date are recognized by recording an allowance for loan losses. Management analyzes the acquired loan pools using various assessments of risk to determine an expected loss. The expected loss is derived based upon a loss given default based upon the collateral type and/or detailed review by loan officers of loans greater than $25,000 and the probability of default that is determined based upon historical data at the loan level. The Company changed the threshold of loans reviewed from $500,000 during the second quarter of 2013 to more accurately derive the expected loss in pools where there are few, if any, loans greater than $500,000. Trends are reviewed in terms of accrual status, past due status, and weighted-average grade of the loans within each of the accounting pools. In addition, the relationship between the change in the unpaid principal balance and change in the mark is assessed to correlate the directional consistency of the expected loss for each pool. Offsetting the impact of the provision established for acquired loans covered under FDIC loss share agreements, the receivable from the FDIC is adjusted to reflect the indemnified portion of the post-acquisition exposure with a corresponding credit to the provision for loan losses. (For further discussion of the Company's allowance for loan losses on acquired loans, see Note 1—Summary of Significant Accounting Policies and Note 2—Mergers and Acquisitions.)
An aggregated analysis of the changes in allowance for loan losses is as follows:
(Dollars in thousands)		Non-acquired			Acquired			Acquired			Total
		Loans			Non-credit			Credit
					Impaired			Impaired
					Loans			Loans
Year ended December 31, 2014:
Balance at beginning of period		$	34,331		$	—		$	11,618		$	45,949
Loans charged-off			(7,516	)		(1,531	)		—			(9,047	)
Recoveries of loans previously charged off			2,574			604			—			3,178
Net charge-offs			(4,942	)		(927	)		—			(5,869	)
Provision for loan losses			5,150			927			(1,907	)		4,170
Benefit attributable to FDIC loss share agreements			—			—			2,420			2,420
Total provision for loan losses charged to operations			5,150			927			513			6,590
Provision for loan losses recorded through the FDIC loss share receivable			—			—			(2,420	)		(2,420	)
Reduction due to loan removals			—			—			(2,346	)		(2,346	)
Balance at end of period		$	34,539		$	—		$	7,365		$	41,904
Year ended December 31, 2013:
Balance at beginning of period		$	44,378		$	—		$	17,218		$	61,596
Loans charged-off			(15,289	)		—			—			(15,289	)
Recoveries of loans previously charged off			4,224			—			—			4,224
Net charge-offs			(11,065	)		—			—			(11,065	)
Provision for loan losses			1,018			—			(918	)		100
Benefit attributable to FDIC loss share agreements			—			—			1,786			1,786
Total provision for loan losses charged to operations			1,018			—			868			1,886
Provision for loan losses recorded through the FDIC loss share receivable			—			—			(1,786	)		(1,786	)
Reduction due to loan removals			—			—			(4,682	)		(4,682	)
Balance at end of period		$	34,331		$	—		$	11,618		$	45,949
Year ended December 31, 2012:
Balance at beginning of period		$	49,367		$	—		$	23,607		$	72,974
Loans charged-off			(21,930	)		—			—			(21,930	)
Recoveries of loans previously charged off			3,756			—			—			3,756
Net charge-offs			(18,174	)		—			—			(18,174	)
Provision for loan losses			13,185			—			512			13,697
Benefit attributable to FDIC loss share agreements			—			—			(78	)		(78	)
Total provision for loan losses charged to operations			13,185			—			434			13,619
Provision for loan losses recorded through the FDIC loss share receivable			—			—			78			78
Reduction due to loan removals			—			—			(6,901	)		(6,901	)
Balance at end of period		$	44,378		$	—		$	17,218		$	61,596
The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for non-acquired loans:
(Dollars in thousands)		Construction &			Commercial			Commercial			Consumer			Home			Commercial &			Other Income			Consumer			Other			Total
		Land			Non-owner			Owner			Owner			Equity			Industrial			Producing						Loans
		Development			Occupied			Occupied			Occupied									Property
Year ended December 31, 2014:
Allowance for loan losses:
Balance at beginning of period		$	6,789		$	3,677		$	7,767		$	6,069		$	2,782		$	3,592		$	2,509		$	937		$	209		$	34,331
Charge-offs			(237	)		(442	)		(531	)		(382	)		(1,000	)		(1,114	)		(309	)		(3,501	)		—			(7,516	)
Recoveries			421			390			95			271			69			264			191			873			—			2,574
Provision (benefit)			(1,307	)		(471	)		1,084			908			978			819			(159	)		3,058			240			5,150
Balance at end of period		$	5,666		$	3,154		$	8,415		$	6,866		$	2,829		$	3,561		$	2,232		$	1,367		$	449		$	34,539
Loans individually evaluated for impairment		$	475		$	77		$	172		$	144		$	1		$	41		$	646		$	2		$	—		$	1,558
Loans collectively evaluated for impairment		$	5,191		$	3,077		$	8,243		$	6,722		$	2,828		$	3,520		$	1,586		$	1,365		$	449		$	32,981
Loans:
Loans individually evaluated for impairment		$	4,852		$	3,610		$	9,160		$	2,966		$	31		$	908		$	5,498		$	60		$	—		$	27,085
Loans collectively evaluated for impairment			359,369			329,980			898,753			783,812			283,903			405,015			145,430			189,257			45,222			3,440,741
Total non-acquired loans		$	364,221		$	333,590		$	907,913		$	786,778		$	283,934		$	405,923		$	150,928		$	189,317		$	45,222		$	3,467,826
Year ended December 31, 2013:
Allowance for loan losses:
Balance at beginning of period		$	10,836		$	4,921		$	8,743		$	6,568		$	3,626		$	4,939		$	3,747		$	781		$	217		$	44,378
Charge-offs			(4,656	)		(660	)		(2,695	)		(1,462	)		(1,219	)		(1,329	)		(816	)		(2,452	)		—			(15,289	)
Recoveries			1,395			353			41			633			228			514			224			836			—			4,224
Provision (benefit)			(786	)		(937	)		1,678			330			147			(532	)		(646	)		1,772			(8	)		1,018
Balance at end of period		$	6,789		$	3,677		$	7,767		$	6,069		$	2,782		$	3,592		$	2,509		$	937		$	209		$	34,331
Loans individually evaluated for impairment		$	704		$	—		$	10		$	271		$	—		$	—		$	646		$	—		$	—		$	1,631
Loans collectively evaluated for impairment		$	6,085		$	3,677		$	7,757		$	5,798		$	2,782		$	3,592		$	1,863		$	937		$	209		$	32,700
Loans:
Loans individually evaluated for impairment		$	5,739		$	2,681		$	11,560		$	3,013		$	—		$	405		$	2,649		$	—		$	—		$	26,047
Loans collectively evaluated for impairment			294,212			288,490			821,953			545,157			257,139			321,419			140,555			136,410			33,834			2,839,169
Total non-acquired loans		$	299,951		$	291,171		$	833,513		$	548,170		$	257,139		$	321,824		$	143,204		$	136,410		$	33,834		$	2,865,216
Year ended December 31, 2012:
Allowance for loan losses:
Balance at beginning of period		$	12,373		$	6,109		$	10,356		$	7,453		$	4,269		$	3,901		$	3,636		$	1,145		$	125		$	49,367
Charge-offs			(8,454	)		(2,348	)		(2,781	)		(1,850	)		(1,394	)		(2,033	)		(924	)		(2,146	)		—			(21,930	)
Recoveries			1,428			282			5			124			600			228			361			728			—			3,756
Provision			5,489			878			1,163			841			151			2,843			674			1,054			92			13,185
Balance at end of period		$	10,836		$	4,921		$	8,743		$	6,568		$	3,626		$	4,939		$	3,747		$	781		$	217		$	44,378
Loans individually evaluated for impairment		$	1,573		$	411		$	648		$	213		$	—		$	1,030		$	1,004		$	—		$	—		$	4,879
Loans collectively evaluated for impairment		$	9,263		$	4,510		$	8,095		$	6,355		$	3,626		$	3,909		$	2,743		$	781		$	217		$	39,499
Loans:
Loans individually evaluated for impairment		$	13,549		$	5,344		$	20,212		$	1,954		$	—		$	1,783		$	4,393		$	—		$	—		$	47,235
Loans collectively evaluated for impairment			259,871			284,727			763,940			432,549			255,284			277,980			129,320			86,934			33,163			2,523,768
Total non-acquired loans		$	273,420		$	290,071		$	784,152		$	434,503		$	255,284		$	279,763		$	133,713		$	86,934		$	33,163		$	2,571,003
The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired non-credit impaired loans:
(Dollars in thousands)		Construction			Commercial			Commercial			Consumer			Home			Commercial			Other			Consumer			Total
		& Land			Non-owner			Owner			Owner			Equity			& Industrial			Income
		Development			Occupied			Occupied			Occupied									Producing
																				Property
Year ended December 31, 2014:
Allowance for loan losses:
Balance at beginning of period		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Charge-offs			(78	)		(72	)		—			(150	)		(530	)		(456	)		(14	)		(231	)		(1,531	)
Recoveries			1			—			—			20			262			312			—			9			604
Provision			77			72			—			130			268			144			14			222			927
Balance at end of period		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans:
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment			24,099			49,476			62,065			646,375			234,949			41,130			65,139			204,766			1,327,999
Total acquired non-credit impaired loans		$	24,099		$	49,476		$	62,065		$	646,375		$	234,949		$	41,130		$	65,139		$	204,766		$	1,327,999
As of December 31, 2013 and 2012, the Company has not recorded any allowance for loan losses for loans acquired and accounted for under FASB ASC Topic 310-20.
The following tables present a disaggregated analysis of activity in the allowance for loan losses and loan balances for acquired credit impaired loans:
(Dollars in thousands)		Commercial			Commercial			Commercial			Residential			Consumer			Commercial			Single Pay			Total
		Loans Greater			Real Estate			Real Estate-			Real Estate						and
		Than or						Construction									Industrial
		Equal to						and
		$1 Million-CBT						Development
Year ended December 31, 2014:
Allowance for loan losses:
Balance, December 31, 2013		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
Provision for loan losses before benefit attributable to FDIC loss share agreements			(129	)		(328	)		(621	)		(406	)		(111	)		(314	)		2			(1,907	)
Benefit attributable to FDIC loss share agreements			183			364			792			571			141			371			(2	)		2,420
Total provision for loan losses charged to operations			54			36			171			165			30			57			—			513
Provision for loan losses recorded through the FDIC loss share receivable			(183	)		(364	)		(792	)		(571	)		(141	)		(371	)		2			(2,420	)
Reduction due to loan removals			(39	)		(44	)		(1,287	)		(339	)		(152	)		(449	)		(36	)		(2,346	)
Balance, December 31, 2014		$	135		$	1,444		$	336		$	4,387		$	275		$	718		$	70		$	7,365
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment		$	135		$	1,444		$	336		$	4,387		$	275		$	718		$	70		$	7,365
Loans:*
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment			15,813			325,109			65,262			390,244			85,449			44,804			86			926,767
Total acquired credit impaired loans		$	15,813		$	325,109		$	65,262		$	390,244		$	85,449		$	44,804		$	86		$	926,767
Year ended December 31, 2013:
Allowance for loan losses:
Balance, December 31, 2012		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
Provision for loan losses before benefit attributable to FDIC loss share agreements			(3,109	)		299			2,347			1,057			442			(1,786	)		(168	)		(918	)
Benefit attributable to FDIC loss share agreements			2,934			(456	)		(1,645	)		(520	)		(412	)		1,719			166			1,786
Total provision for loan losses charged to operations			(175	)		(157	)		702			537			30			(67	)		(2	)		868
Provision for loan losses recorded through the FDIC loss share receivable			(2,934	)		456			1,645			520			412			(1,719	)		(166	)		(1,786	)
Reduction due to loan removals			(1,925	)		—			(1,731	)		(132	)		—			(872	)		(22	)		(4,682	)
Balance, December 31, 2013		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
Loans:*
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment			24,109			439,785			114,126			481,247			103,998			68,862			129			1,232,256
Total acquired credit impaired loans		$	24,109		$	439,785		$	114,126		$	481,247		$	103,998		$	68,862		$	129		$	1,232,256
*	—The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
(Dollars in thousands)		Commercial			Commercial			Commercial			Residential			Consumer			Commercial			Single Pay			Total
		Loans Greater			Real Estate			Real Estate-			Real Estate						and
		Than or						Construction									Industrial
		Equal to						and
		$1 Million-CBT						Development
Year ended December 31, 2012:
Allowance for loan losses:
Balance at beginning of period		$	12,417		$	1,318		$	—		$	5,332		$	—		$	4,564		$	(24	)	$	23,607
Provision for loan losses before benefit attributable to FDIC loss share agreements			(1,298	)		199			1,628			(855	)		96			(259	)		1,001			512
Benefit attributable to FDIC loss share agreements			1,233			(30	)		(1,319	)		813			(88	)		264			(951	)		(78	)
Total provision for loan losses charged to operations			(65	)		169			309			(42	)		8			5			50			434
Provision for loan losses recorded through the FDIC loss share receivable			(1,233	)		30			1,319			(813	)		88			(264	)		951			78
Reduction due to loan removals			(5,782	)		—			—			(270	)		—			(166	)		(683	)		(6,901	)
Balance at end of period		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
Loans:*
Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
Loans collectively evaluated for impairment			39,661			372,924			130,451			354,718			15,685			72,718			456			986,613
Total acquired credit impaired loans		$	39,661		$	372,924		$	130,451		$	354,718		$	15,685		$	72,718		$	456		$	986,613
*	—The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
As part of the on-going monitoring of the credit quality of the Company's loan portfolio, management tracks certain credit quality indicators including trends related to (i) the level of classified loans, (ii) net charge-offs, (iii) non-performing loans (see details below) and (iv) the general economic conditions of the markets that we serve.
The Company utilizes a risk grading matrix to assign a risk grade to each of its loans. A description of the general characteristics of the risk grades is as follows:
•	Pass—These loans range from minimal credit risk to average however still acceptable credit risk.
•	Special mention—A special mention loan has potential weaknesses that deserve management's close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or the institution's credit position at some future date.
•	Substandard—A substandard loan is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so classified must have a well-defined weakness, or weaknesses, that may jeopardize the liquidation of the debt. A substandard loan is characterized by the distinct possibility that the Bank will sustain some loss if the deficiencies are not corrected.
•	Doubtful—A doubtful loan has all of the weaknesses inherent in one classified as substandard with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of the currently existing facts, conditions and values, highly questionable and improbable.
	The following table presents the credit risk profile by risk grade of commercial non-acquired loans:
		Construction & Development						Commercial						Commercial Owner Occupied
								Non-owner Occupied
(Dollars in thousands)		December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
		2014			2013			2014			2013			2014			2013
Pass		$	337,641		$	263,698		$	307,450		$	259,120		$	858,220		$	785,406
Special mention			15,466			20,814			20,596			24,779			34,737			26,148
Substandard			11,114			15,439			5,544			7,272			14,956			21,959
Doubtful			—			—			—			—			—			—
		$	364,221		$	299,951		$	333,590		$	291,171		$	907,913		$	833,513
		Commercial & Industrial						Other Income						Commercial Total
								Producing Property
		December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
		2014			2013			2014			2013			2014			2013
Pass		$	397,555		$	309,360		$	135,400		$	124,519		$	2,036,266		$	1,742,103
Special mention			6,718			10,376			10,333			9,903			87,850			92,020
Substandard			1,650			2,088			5,195			8,753			38,459			55,511
Doubtful			—			—			—			29			—			29
		$	405,923		$	321,824		$	150,928		$	143,204		$	2,162,575		$	1,889,663
The following table presents the credit risk profile by risk grade of consumer non-acquired loans:
		Consumer Owner						Home Equity						Consumer
		Occupied
(Dollars in thousands)		December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
		2014			2013			2014			2013			2014			2013
Pass		$	746,847		$	500,999		$	269,844		$	243,615		$	188,049		$	135,476
Special mention			22,129			25,317			8,047			8,437			764			646
Substandard			17,802			21,854			6,021			5,064			504			288
Doubtful			—			—			22			23			—			—
		$	786,778		$	548,170		$	283,934		$	257,139		$	189,317		$	136,410
		Other						Consumer Total
		December 31,			December 31,			December 31,			December 31,
		2014			2013			2014			2013
Pass		$	45,222		$	33,834		$	1,249,962		$	913,924
Special mention			—			—			30,940			34,400
Substandard			—			—			24,327			27,206
Doubtful			—			—			22			23
		$	45,222		$	33,834		$	1,305,251		$	975,553
The following table presents the credit risk profile by risk grade of total non-acquired loans:
		Total Non-acquired Loans
(Dollars in thousands)		December 31,			December 31,
		2014			2013
Pass		$	3,286,228		$	2,656,027
Special mention			118,790			126,420
Substandard			62,786			82,717
Doubtful			22			52
		$	3,467,826		$	2,865,216
At December 31, 2014, the aggregate amount of non-acquired substandard and doubtful loans totaled $62.8 million. When these loans are combined with non-acquired OREO of $7.9 million, our non-acquired classified assets (as defined by the South Carolina Board of Financial Institutions and the FDIC, our primary regulators) were $70.7 million. At December 31, 2013, the amounts were $82.8 million, $13.5 million, and $96.3 million, respectively.
The following table presents the credit risk profile by risk grade of commercial loans for acquired non-credit impaired loans:
		Construction &						Commercial						Commercial
		Development						Non-owner Occupied						Owner Occupied
		December 31,						December 31,						December 31,
(Dollars in thousands)		2014			2013			2014			2013			2014			2013
Pass		$	22,456		$	57,389		$	42,572		$	56,539		$	61,040		$	71,984
Special mention			816			109			6,039			1,565			265			318
Substandard			827			898			865			494			760			1,412
Doubtful			—			—			—			—			—			—
		$	24,099		$	58,396		$	49,476		$	58,598		$	62,065		$	73,714
		Commercial &						Other Income						Commercial Total
		Industrial						Producing Property
		December 31,						December 31,						December 31,
		2014			2013			2014			2013			2014			2013
Pass		$	39,780		$	56,777		$	63,090		$	70,812		$	228,938		$	313,501
Special mention			448			924			896			2,177			8,464			5,093
Substandard			902			1,072			1,153			1,577			4,507			5,453
Doubtful			—			—			—			—			—			—
		$	41,130		$	58,773		$	65,139		$	74,566		$	241,909		$	324,047
The following table presents the credit risk profile by risk grade of consumer loans for acquired non-credit impaired loans:
		Consumer Owner						Home Equity						Consumer
		Occupied
		December 31,						December 31,						December 31,
(Dollars in thousands)		2014			2013			2014			2013			2014			2013
Pass		$	639,555		$	742,778		$	222,653		$	246,274		$	201,636		$	266,645
Special mention			1,241			417			4,491			6,733			619			127
Substandard			5,579			2,286			7,805			11,143			2,511			485
Doubtful			—			—			—			—			—			—
		$	646,375		$	745,481		$	234,949		$	264,150		$	204,766		$	267,257
		Consumer Total
		December 31,
		2014			2013
Pass		$	1,063,844		$	1,255,697
Special mention			6,351			7,277
Substandard			15,895			13,914
Doubtful			—			—
		$	1,086,090		$	1,276,888
The following table presents the credit risk profile by risk grade of total acquired non-credit impaired loans:
		Total Acquired Non-credit
		Impaired Loans
		December 31,
(Dollars in thousands)		2014			2013
Pass		$	1,292,782		$	1,569,198
Special mention			14,815			12,370
Substandard			20,402			19,367
Doubtful			—			—
		$	1,327,999		$	1,600,935
The following table presents the credit risk profile by risk grade of acquired credit impaired loans (identified as credit-impaired at the time of acquisition), net of the related discount (this table should be read in conjunction with the allowance for acquired loan losses table found on page F-45):
		Commercial Loans						Commercial Real Estate						Commercial Real
		Greater Than or												Estate—Construction
		Equal to												and Development
		$1 million-CBT
		December 31,						December 31,						December 31,
(Dollars in thousands)		2014			2013			2014			2013			2014			2013
Pass		$	11,248		$	12,047		$	208,269		$	244,293		$	26,855		$	38,748
Special mention			1,030			2,513			35,896			46,159			9,539			13,762
Substandard			3,535			9,549			80,944			149,333			28,868			61,616
Doubtful			—			—			—			—			—			—
		$	15,813		$	24,109		$	325,109		$	439,785		$	65,262		$	114,126
		Residential Real Estate						Consumer						Commercial &
														Industrial
		December 31,						December 31,						December 31,
		2014			2013			2014			2013			2014			2013
Pass		$	190,931		$	203,296		$	7,493		$	8,804		$	25,530		$	38,450
Special mention			73,699			91,468			29,087			38,322			5,317			3,968
Substandard			125,614			186,405			48,869			56,872			13,957			26,444
Doubtful			—			78			—			—			—			—
		$	390,244		$	481,247		$	85,449		$	103,998		$	44,804		$	68,862
		Single Pay						Total Acquired Credit
								Impaired Loans
		December 31,						December 31,
		2014			2013			2014			2013
Pass		$	58		$	52		$	470,384		$	545,690
Special mention			—			—			154,568			196,192
Substandard			28			77			301,815			490,296
Doubtful			—			—			—			78
		$	86		$	129		$	926,767		$	1,232,256
The risk grading of acquired credit impaired loans is determined utilizing a loan's contractual balance, while the amount recorded in the financial statements and reflected above is the carrying value. In an FDIC-assisted acquisition, covered acquired loans are initially recorded at their fair value, including a credit discount due to the high concentration of substandard and doubtful loans. In addition to the credit discount and the allowance for loan losses on covered acquired loans, the Company's risk of loss is mitigated by the FDIC loss share arrangement.
The following table presents an aging analysis of past due loans, segregated by class for non-acquired loans:
(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
		Past Due			Past Due			Past Due			Past Due
December 31, 2014
Commercial real estate:
Construction and land development		$	318		$	439		$	1,354		$	2,111		$	362,110		$	364,221
Commercial non-owner occupied			1,197			—			1,432			2,629			330,961			333,590
Commercial owner occupied			1,106			95			5,403			6,604			901,309			907,913
Consumer real estate:
Consumer owner occupied			1,946			501			2,746			5,193			781,585			786,778
Home equity loans			679			443			519			1,641			282,293			283,934
Commercial and industrial			760			123			107			990			404,933			405,923
Other income producing property			570			114			1,319			2,003			148,925			150,928
Consumer			512			243			120			875			188,442			189,317
Other loans			65			46			62			173			45,049			45,222
		$	7,153		$	2,004		$	13,062		$	22,219		$	3,445,607		$	3,467,826
December 31, 2013
Commercial real estate:
Construction and land development		$	557		$	476		$	2,707		$	3,740		$	296,211		$	299,951
Commercial non-owner occupied			1,780			1			2,684			4,465			286,706			291,171
Commercial owner occupied			457			650			3,601			4,708			828,805			833,513
Consumer real estate:
Consumer owner occupied			1,526			1,107			2,621			5,254			542,916			548,170
Home equity loans			780			214			422			1,416			255,723			257,139
Commercial and industrial			390			105			370			865			320,959			321,824
Other income producing property			950			19			2,634			3,603			139,601			143,204
Consumer			337			142			28			507			135,903			136,410
Other loans			33			36			30			99			33,735			33,834
		$	6,810		$	2,750		$	15,097		$	24,657		$	2,840,559		$	2,865,216
The following table presents an aging analysis of past due loans, segregated by class for acquired non-credit impaired loans:
(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
		Past Due			Past Due			Past Due			Past Due
December 31, 2014
Commercial real estate:
Construction and land development		$	17		$	—		$	40		$	57		$	24,042		$	24,099
Commercial non-owner occupied			—			—			—			—			49,476			49,476
Commercial owner occupied			414			—			38			452			61,613			62,065
Consumer real estate:
Consumer owner occupied			443			241			1,566			2,250			644,125			646,375
Home equity loans			1,451			866			972			3,289			231,660			234,949
Commercial and industrial			14			250			117			381			40,749			41,130
Other income producing property			97			—			88			185			64,954			65,139
Consumer			885			341			843			2,069			202,697			204,766
		$	3,321		$	1,698		$	3,664		$	8,683		$	1,319,316		$	1,327,999
December 31, 2013
Commercial real estate:
Construction and land development		$	371		$	—		$	464		$	835		$	57,561		$	58,396
Commercial non-owner occupied			105			—			17			122			58,476			58,598
Commercial owner occupied			—			71			272			343			73,371			73,714
Consumer real estate:
Consumer owner occupied			3,368			393			1,196			4,957			740,524			745,481
Home equity loans			857			67			625			1,549			262,601			264,150
Commercial and industrial			827			894			282			2,003			56,770			58,773
Other income producing property			431			—			—			431			74,135			74,566
Consumer			291			213			154			658			266,599			267,257
Other loans			—			—			—			—			—			—
		$	6,250		$	1,638		$	3,010		$	10,898		$	1,590,037		$	1,600,935
The following table presents an aging analysis of past due loans, segregated by class for acquired credit impaired loans:
(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
		Past Due			Past Due			Past Due			Past Due
December 31, 2014
Commercial loans greater than or equal to $1 million—CBT		$	—		$	—		$	2,896		$	2,896		$	12,917		$	15,813
Commercial real estate			4,350			723			15,866			20,939			304,170			325,109
Commercial real estate—construction and development			1,750			452			8,204			10,406			54,856			65,262
Residential real estate			7,194			2,856			15,471			25,521			364,723			390,244
Consumer			2,241			1,106			2,614			5,961			79,488			85,449
Commercial and industrial			451			196			3,413			4,060			40,744			44,804
Single pay			—			—			—			—			86			86
		$	15,986		$	5,333		$	48,464		$	69,783		$	856,984		$	926,767
December 31, 2013
Commercial loans greater than or equal to $1 million—CBT		$	—		$	—		$	7,217		$	7,217		$	16,892		$	24,109
Commercial real estate			4,493			3,728			24,362			32,583			407,202			439,785
Commercial real estate—construction and development			4,847			9,166			17,567			31,580			82,546			114,126
Residential real estate			13,794			3,792			27,061			44,647			436,600			481,247
Consumer			2,390			552			2,050			4,992			99,006			103,998
Commercial and industrial			3,875			634			3,829			8,338			60,524			68,862
Single pay			—			—			46			46			83			129
		$	29,399		$	17,872		$	82,132		$	129,403		$	1,102,853		$	1,232,256
The following is a summary of information pertaining to impaired non-acquired and acquired loans accounted for under FASB ASC Topic 310-20:
(Dollars in thousands)		Unpaid			Recorded			Gross			Total			Related
		Contractual			Investment			Recorded			Recorded			Allowance
		Principal			With No			Investment			Investment
		Balance			Allowance			With
								Allowance
December 31, 2014
Commercial real estate:
Construction and land development		$	7,414		$	1,528		$	3,324		$	4,852		$	475
Commercial non-owner occupied			4,920			2,539			1,071			3,610			77
Commercial owner occupied			12,508			5,546			3,614			9,160			172
Consumer real estate:
Consumer owner occupied			3,393			—			2,966			2,966			144
Home equity loans			131			—			31			31			1
Commercial and industrial			1,625			336			572			908			41
Other income producing property			6,280			360			5,138			5,498			646
Consumer			95			—			60			60			2
Other loans			—			—			—			—			—
Total		$	36,366		$	10,309		$	16,776		$	27,085		$	1,558
December 31, 2013
Commercial real estate:
Construction and land development		$	7,341		$	3,555		$	2,184		$	5,739		$	704
Commercial non-owner occupied			3,592			2,681			—			2,681			—
Commercial owner occupied			14,017			10,441			1,119			11,560			10
Consumer real estate:
Consumer owner occupied			3,063			—			3,013			3,013			271
Home equity loans			—			—			—			—			—
Commercial and industrial			477			405						405
									—						—
Other income producing property			2,794			554			2,095			2,649			646
Consumer			—			—			—			—			—
Other loans			—			—			—			—			—
Total		$	31,284		$	17,636		$	8,411		$	26,047		$	1,631
Acquired credit impaired loans are accounted for in pools as shown on page F-37 rather than being individually evaluated for impairment; therefore, the table above excludes acquired credit impaired loans.
The following summarizes the average investment in impaired loans, non-acquired and acquired loans accounted for under FASB ASC Topic 310-20, and interest income recognized on these loans:
		Years Ended December 31,
		2014						2013						2012
(Dollars in thousands)		Average			Interest			Average			Interest			Average			Interest
		Investment in			Income			Investment in			Income			Investment in			Income
		Impaired			Recognized			Impaired			Recognized			Impaired			Recognized
		Loans						Loans						Loans
Commercial real estate:
Construction and land development		$	5,295		$	80		$	10,589		$	98		$	18,048		$	114
Commercial non-owner occupied			3,145			68			4,030			—			7,503			85
Commercial owner occupied			10,360			141			15,170			106			17,460			347
Consumer real estate:
Consumer owner occupied			2,990			113			845			154			2,223			65
Home equity loans			15			1			—			—			—			—
Commercial and industrial			657			27			1,234						921			23
												—
Other income producing property			4,073			163			3,463			35			3,171			117
Consumer			30			5			—			—			—			—
Other loans			—			—			—			—			—			—
Total Impaired Loans		$	26,565		$	598		$	35,331		$	393		$	49,326		$	751
The following is a summary of information pertaining to non-acquired nonaccrual loans by class, including restructured loans:
		December 31,
(Dollars in thousands)		2014			2013
Commercial non-owner occupied real estate:
Construction and land development		$	2,920		$	5,819
Commercial non-owner occupied			2,325			2,912
Total commercial non-owner occupied real estate			5,245			8,731
Consumer real estate:
Consumer owner occupied			6,015			8,382
Home equity loans			1,412			1,128
Total consumer real estate			7,427			9,510
Commercial owner occupied real estate			3,605			7,753
Commercial and industrial			600			586
Other income producing property			1,348			4,704
Consumer			344			49
Other loans			—			—
Restructured loans			9,425			10,690
Total loans on nonaccrual status		$	27,994		$	42,023
The following is a summary of information pertaining to acquired non-credit impaired nonaccrual loans by class, including restructured loans:
		December 31,
(Dollars in thousands)		2014			2013
Commercial non-owner occupied real estate:
Construction and land development		$	41		$	—
Commercial non-owner occupied			645			—
Total commercial non-owner occupied real estate			686			—
Consumer real estate:
Consumer owner occupied			3,685			—
Home equity loans			1,507			—
Total consumer real estate			5,192			—
Commercial owner occupied real estate			38			—
Commercial and industrial			120			—
Other income producing property			309			—
Consumer			1,193			—
Total loans on nonaccrual status		$	7,538		$	—
In the course of resolving delinquent loans, the Bank may choose to restructure the contractual terms of certain loans. Any loans that are modified are reviewed by the Bank to determine if a troubled debt restructuring ("TDR" or "restructured loan") has occurred. A TDR is a modification in which the Bank grants a concession to a borrower that it would not otherwise consider due to economic or legal reasons related to a borrower's financial difficulties. The concessions granted on TDRs generally include terms to reduce the interest rate, extend the term of the debt obligation, or modify the payment structure on the debt obligation.
The Bank designates loan modifications as TDRs when it grants a concession to the borrower that it would not otherwise consider due to the borrower experiencing financial difficulty (FASB ASC Topic 310-40). Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of concession are initially classified as accruing TDRs if the note is reasonably assured of repayment and performance is expected in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the concession date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is documented credit evaluation of the borrower's financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months).
The following table presents non-acquired and acquired non-credit impaired loans designated as TDRs segregated by class and type of concession that were restructured during the years ended December 31, 2014, 2013 and 2012:
		Years Ended December 31,
		2014									2013									2012
(Dollars in thousands)		Number			Pre-			Post-			Number			Pre-			Post-			Number			Pre-			Post-
		of loans			Modification			Modification			of loans			Modification			Modification			of loans			Modification			Modification
					Outstanding			Outstanding						Outstanding			Outstanding						Outstanding			Outstanding
					Recorded			Recorded						Recorded			Recorded						Recorded			Recorded
					Investment			Investment						Investment			Investment						Investment			Investment
Interest rate modification
Construction and land development			2		$	602		$	562			1		$	120		$	120			1		$	165		$	156
Commercial non-owner occupied			—			—			—			1			246			233			—			—			—
Commercial owner occupied			—			—			—			1			750			747			4			5,355			5,215
Consumer owner occupied			4			484			464			1			124			116			—			—			—
Commercial and industrial			—			—			—			—			—			—			1			474			464
Other Income Producing Property			1			147			128			—			—			—			—			—			—
Total interest rate modifications			7			1,233			1,154			4			1,240			1,216			6			5,994			5,835
Term modification
Construction and land development			1			99			95			—			—			—			2			835			824
Commercial non-owner occupied			—			—			—			—			—			—			1			700			700
Consumer owner occupied			—			—			—			1			2,442			2,442			—			—			—
Other Income Producing Property			1			1,243			1,206			—			—			—			—			—			—
Total term modifications			2			1,342			1,301			1			2,442			2,442			3			1,535			1,524
			9		$	2,575		$	2,455			5		$	3,682		$	3,658			9		$	7,529		$	7,359
At December 31, 2014 and December 31, 2013, the balance of accruing TDRs was $6.6 million, $5.3 million, respectively.
The following table presents the changes in status of non-acquired loans restructured within the previous 12 months as of December 31, 2014 by type of concession:
		Paying Under						Converted to						Foreclosures and
		Restructured Terms						Nonaccrual						Defaults
(Dollars in thousands)		Number			Recorded			Number			Recorded			Number			Recorded
		of Loans			Investment			of Loans			Investment			of Loans			Investment
Interest rate modification			4		$	767			2		$	183			1		$	204
Term modification			2			1,301			—			—			—			—
			6		$	2,068			2		$	183			1		$	204
The amount of specific reserve associated with non-acquired restructured loans was $991,000 at December 31, 2014, none of which was related to the restructured loans that had subsequently defaulted. The Company had no remaining availability under commitments to lend additional funds on these restructured loans at December 31, 2014.

FDIC_Indemnification_Asset

FDIC Indemnification Asset	12 Months Ended
	Dec. 31, 2014
FDIC Indemnification Asset
FDIC Indemnification Asset	Note 5—FDIC Indemnification Asset
	The following table provides changes in the FDIC indemnification asset:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Balance at beginning of period	$	86,447		$	146,171		$	262,651
	FDIC indemnification asset recorded for First Federal's loss share agreements		—			21,891			—
	Increase (decrease) in expected losses on loans		(2,421	)		(3,452	)		78
	Additional losses (gains) on OREO		(4,520	)		(2,252	)		7,467
	Reimbursable expenses		2,829			5,542			9,262
	Amortization of discounts and premiums, net		(21,895	)		(29,535	)		(20,773	)
	Reimbursements from FDIC		(38,279	)		(51,918	)		(112,514	)
	Balance at end of period	$	22,161		$	86,447		$	146,171
	The FDIC indemnification asset is measured separately from the related covered assets. At December 31, 2014, the projected cash flows related to the FDIC indemnification asset for losses on assets acquired were approximately $16.0 million less than the current carrying value. This amount is being recognized as negative accretion (in non-interest income) over the shorter of the underlying asset's remaining life or remaining term of the loss share agreements. Subsequent to year-end, the Company received $1.3 million from loss share claims filed, including reimbursable expenses.
	Included in the FDIC indemnification asset is an expected "true up" with the FDIC related to both the BankMeridian and Plantation acquisitions. This amount is determined each reporting period and at December 31, 2014, was estimated to be approximately $4.1 million related to the BankMeridian acquisition at the end of the loss share agreement (July 2021) and $3.4 million related to the Plantation acquisition at the end of the loss share agreement (April 2017). The actual payment will be determined at the end of the loss sharing agreement term for each of the five FDIC-assisted acquisitions and is based on the negative bid, expected losses, intrinsic loss estimate, and assets covered under loss share. There was no true up expected from the CBT, Cape Fear, or Habersham FDIC-assisted transactions as of December 31, 2014.
	Effective June 30, 2014, the Commercial Shared-Loss Agreement with the FDIC expired for Cape Fear and losses on assets covered under this agreement are no longer claimable after filing the second quarter of 2014 commercial loss share certificate. The Commercial Shared-Loss Agreement for CBT will expire March 31, 2015 and losses on assets covered under this agreement will no longer be claimable after this date; however, 95% of recoveries received over the next three years will be shared with the FDIC. At December 31, 2014, $50.3 million in loans and $3.9 million in OREO were covered under this agreement.

Other_Real_Estate_Owned

Other Real Estate Owned	12 Months Ended
	Dec. 31, 2014
Other Real Estate Owned
Other Real Estate Owned	Note 6—Other Real Estate Owned
	The following is a summary of the changes in the carrying value of OREO:
	(Dollars in thousands)	OREO			Covered			Total
					OREO
	Balance, December 31, 2011	$	18,022		$	65,849		$	83,871
	Acquired in Peoples acquisition		8,104			—			8,104
	Acquired in SAVB acquisition		7,106			—			7,106
	Additions, net		25,958			20,631			46,589
	Writedowns		(5,633	)		(7,557	)		(13,190	)
	Sold		(21,309	)		(44,666	)		(65,975	)
	Balance, December 31, 2012	$	32,248		$	34,257		$	66,505
	Acquired in FFHI acquisition		4,801			6,405			11,206
	Additions, net		33,761			20,559			54,320
	Writedowns		(7,831	)		(278	)		(8,109	)
	Sold		(25,581	)		(33,423	)		(59,004	)
	Balance, December 31, 2013		37,398			27,520			64,918
	Additions, net		29,260			16,555			45,815
	Writedowns		(4,827	)		(5,858	)		(10,685	)
	Sold		(35,332	)		(21,990	)		(57,322	)
	Balance, December 31, 2014	$	26,499		$	16,227		$	42,726
	The covered OREO above is covered pursuant to the FDIC loss share agreements and is presented net of the related fair value discount. At December 31, 2014, there were 279 properties included in OREO, with 166 uncovered and 113 covered by loss share agreement with the FDIC. At December 31, 2013, there were 480 properties in OREO, with 216 uncovered and 264 covered by loss share agreement with the FDIC. During 2014, the Company sold 557 properties with 304 covered by loss share agreements with the FDIC and 253 not covered. For the year ended December 31, 2013, the Company sold 693 properties with 457 covered by loss share agreements with the FDIC and 236 were not covered. See Note 30—Subsequent Event for information about the OREO auction.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2014
Premises and Equipment
Premises and Equipment	Note 7—Premises and Equipment
	Premises and equipment consisted of the following:
				December 31,
	(Dollars in thousands)	Useful Life		2014			2013
	Land			$	54,269		$	67,056
	Buildings and leasehold improvements		15 - 40 years		139,742			145,028
	Equipment and furnishings		3 - 10 years		72,671			70,989
	Construction in process				611			939
	Total				267,293			284,012
	Less accumulated depreciation				(95,521	)		(95,898	)
				$	171,772		$	188,114
	Depreciation expense charged to operations was $11.1 million, $10.0 million, and $8.7 million for the years ended December 31, 2014, 2013, and 2012, respectively.
	At December 31, 2014 and 2013, computer software with an original cost of $6.0 million and $10.7 million, respectively, were being amortized using the straight-line method over thirty-six months. Amortization expense totaled $1.7 million, $1.4 million, and $1.3 million for the years ended December 31, 2014, 2013, and 2012, respectively.

Goodwill_and_Other_Intangible_

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2014
Goodwill and Other Intangible Assets
Goodwill and Other Intangible Assets	Note 8—Goodwill and Other Intangible Assets
	In accordance with FASB ASC 350, Intangibles—Goodwill and Other, the Company ceased amortization of goodwill as of January 1, 2002. The Company has determined that there has been no impairment of goodwill as of December 31, 2014. The following is a summary of changes in the carrying amounts of goodwill:
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Balance at beginning of period	$	317,688		$	103,292
	Additions:
	Goodwill from FFHI acquisition		—			214,396
	Balance at end of period	$	317,688		$	317,688
	The Company's other intangible assets, consisting of core deposit intangibles, noncompete intangibles, and client list intangibles are included on the face of the balance sheet. The following is a summary of gross carrying amounts and accumulated amortization of other intangible assets:
		December 31,
	(Dollars in thousands)	2014			2013
	Gross carrying amount	$	75,354		$	77,896
	Accumulated amortization		(26,115	)		(17,988	)
		$	49,239		$	59,908
	Amortization expense totaled $8.3 million, $6.1 million and $2.2 million for the years ended December 31, 2014, 2013, and 2012, respectively. Other intangibles are amortized using either the straight-line method or an accelerated basis over their estimated useful lives, with lives generally between 2 and 15 years. Estimated amortization expense for other intangibles for each of the next five years is as follows:
	(Dollars in thousands)
	Years ending December 31:
	2015	$	7,890
	2016		6,377
	2017		6,136
	2018		5,797
	2019		5,530
	Thereafter		17,509
		$	49,239

Deposits

Deposits	12 Months Ended
	Dec. 31, 2014
Deposits
Deposits	Note 9—Deposits
	The Company's total deposits are comprised of the following:
		December 31,
	(Dollars in thousands)	2014		2013
	Certificates of deposit	$	1,237,140	$	1,525,567
	Interest-bearing demand deposits		2,927,820		2,893,646
	Non-interest bearing demand deposits		1,639,953		1,486,445
	Savings deposits		655,132		647,648
	Other time deposits		1,000		838
	Total deposits	$	6,461,045	$	6,554,144
	At December 31, 2014, and 2013, the Company had $128.5 million and $152.6 million in certificates of deposits greater than $250,000, respectively. At December 31, 2014 and 2013, the Company had $23.4 million and $34.8 million, respectively, in traditional, out-of-market brokered deposits.
	At December 31, 2014, the scheduled maturities of time deposits (includes $1.0 million of other time deposits) of all denominations are as follows:
	(Dollars in thousands)
	Years ending December 31:
	2015	$	835,296
	2016		229,820
	2017		90,151
	2018		43,179
	2019		31,756
	Thereafter		7,938
		$	1,238,140

Federal_Funds_Purchased_and_Se

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	12 Months Ended
	Dec. 31, 2014
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	Note 10—Federal Funds Purchased and Securities Sold Under Agreements to Repurchase
	Federal funds purchased and securities sold under agreements to repurchase generally mature within one to three days from the transaction date, but may have maturities as long as nine months per our policies. Certain of the borrowings have no defined maturity date. Securities sold under agreements to repurchase are reflected at the amount of cash received in connection with the transaction. The Company monitors the fair value of the underlying securities on a daily basis. Some securities underlying these agreements include arrangements to resell securities from broker-dealers approved by the Company. Information concerning federal funds purchased and securities sold under agreements to repurchase are below:
		December 31,
		2014					2013					2012
	(Dollars in thousands)	Amount		Rate			Amount		Rate			Amount		Rate
	At period-end:
	Federal funds purchased and securities sold under repurchase agreements	$	221,541		0.14	%	$	211,401		0.14	%	$	238,621		0.17	%
	Average for the year:
	Federal funds purchased and securities sold under repurchase agreements	$	253,948		0.14	%	$	274,080		0.16	%	$	229,185		0.20	%
	Maximum month-end balance:
	Federal funds purchased and securities sold under repurchase agreements	$	321,733				$	328,701				$	254,104

Other_Borrowings

Other Borrowings	12 Months Ended
	Dec. 31, 2014
Other Borrowings
Other Borrowings	Note 11—Other Borrowings
	The Company's other borrowings were as follows:
		December 31,
	(Dollars in thousands)	2014		2013
	FFCH Capital Trust I junior subordinated debt with a fixed interest rate of 7.00% and pays interest quarterly; matures on April 6, 2034, and can be called by the issuer without penalty on or after April 7, 2009 for the principal outstanding plus any accrued interest; net of discount of $134 on December 31, 2014. Guaranteed by the Company on a subordinated basis.	$	46,258	$	46,135
	SCBT Capital Trust III junior subordinated debt with a fixed interest rate of 5.92% until September 15, 2015 and thereafter at a rate equal to the three-month LIBOR rate plus a spread of 159 basis points adjusted quarterly; matures on July 18, 2035, and can be called by the issuer without penalty on or after September 15, 2012 for the outstanding principal plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		20,619		20,619
	SCBT Capital Trust I junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 179 basis points adjusted quarterly; matures on June 15, 2035, and can be called by the issuer without penalty on or after June 30, 2010 for the principal outstanding plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		12,372		12,372
	SCBT Capital Trust II junior subordinated debt with a fixed interest rate of 6.37% until June 15, 2010 and thereafter at a rate equal to the three-month LIBOR rate plus a spread of 179 basis points adjusted quarterly; matures on June 15, 2035, and can be called by the issuer without penalty on or after June 30, 2010 for the principal outstanding plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		8,248		8,248
	SAVB Capital Trust I junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 285 basis points adjusted quarterly; matures on October 7, 2033, and can be called by the issuer without penalty on or after October 7, 2008 for the principal outstanding plus any accrued and unpaid interest; net of discount of $342 on December 31, 2014. Guaranteed by the Company on a subordinated basis.		5,844		5,729
	SAVB Capital Trust II junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 220 basis points adjusted quarterly; matures on December 15, 2034, and can be called by the issuer without penalty on or after December 15, 2009 for the principal outstanding plus any accrued and unpaid interest; net of discount of $296 on December 31, 2014. Guaranteed by the Company on a subordinated basis.		3,828		3,729
	TSB Statutory Trust I junior subordinated debt with a variable interest rate of three-month LIBOR plus 172 basis points and pays interest quarterly; rate is subject to quarterly resets; matures on March 14, 2037, and can be called by the issuer without penalty on or after December 15, 2011. Guaranteed by the Company on a subordinated basis.		3,093		3,093
	Other		948		2,135
		$	101,210	$	102,060
	FHLB Advances
	The Company has from time-to-time entered into borrowing agreements with the FHLB. Advances under these agreements are collateralized by stock in the FHLB, qualifying first and second mortgage residential loans, and commercial real estate loans under a blanket-floating lien.
	As of December 31, 2014, and 2013, there was $136,000 and $142,000 in outstanding advances, respectively. Net eligible loans of the Company pledged via a blanket lien to the FHLB for advances and letters of credit at December 31, 2014, were approximately $2.4 billion which allows the Company a total borrowing capacity at FHLB of approximately $960.8 million. After accounting for letters of credit totaling $19.7 million, the Company had unused net credit available with the FHLB in the amount of approximately $940.7 million at December 31, 2014.
	Junior Subordinated Debt
	The obligations of the Company with respect to the issuance of the capital securities constitute a full and unconditional guarantee by the Company of the Trusts' obligations with respect to the capital securities. Subject to certain exceptions and limitations, the Company may elect from time to time to defer interest payments on the junior subordinated debt securities, which would result in a deferral of distribution payments on the related capital securities.
	As of December 31, 2014, the sole assets of the Trusts were an aggregate of $101.0 million of the Company's junior subordinated debt securities with like maturities and like interest rates to the trust preferred securities.
	As of December 31, 2014, the Company recorded a $100.3 million liability for the junior subordinated debt securities, net of a $772,000 discount recorded on SAVB Capital Trust I and II and FFCH Capital Trust I. The Company, as issuer, can call any of these subordinated debt securities without penalty. If the Company were to call the securities, the amount paid to the holders would be $101.0 million and the Company would fully amortize any remaining discount into interest expense. The remaining discount is being amortized over either a two and one-half year period or five year period. See Note 30—Subsequent Events for information about the redemption of the FFCH Capital Trust I junior subordinated debt securities.
	For regulatory purposes, the junior subordinated debt securities may be classified as Tier 1 Capital. The trust preferred securities represent a minority investment in an unconsolidated subsidiary, which is currently included in Tier 1 Capital so long as it does not exceed 25% of total Tier 1 Capital.
	Line of Credit
	On October 27, 2014, the Company entered into a Credit Agreement (the "Agreement") with U.S. Bank National Association (the "Lender"). The Agreement provides for a $20 million unsecured line of credit by the Lender to the Company. The maturity date of the Agreement is October 26, 2015, provided that the Agreement may be extended subject to the approval of the Lender. Borrowings by the Company under the Agreement will bear interest at a rate per annum equal to one-month LIBOR plus 1.75%.
	Principal maturities of other borrowings are summarized below:
	(Dollars in thousands)	Junior		Other		Total
		Subordinated
		Debt
	Years Ended December 31,
	2015	$	—	$	6	$	6
	2016		—		6		6
	2017		—		7		7
	2018		—		7		7
	2019		—		7		7
	Thereafter		100,262		915		101,177
		$	100,262	$	948	$	101,210

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2014
Income Taxes
Income Taxes	Note 12—Income Taxes
	The provision for income taxes consists of the following:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Current:
	Federal	$	8,577		$	22,153		$	10,455
	State		1,609			1,135			1,351
	Total current tax expense		10,186			23,288			11,806
	Deferred:
	Federal		26,156			973			3,161
	State		(351	)		1,094			161
	Total deferred tax expense (benefit)		25,805			2,067			3,322
	Provision for income taxes	$	35,991		$	25,355		$	15,128
	The provision for income taxes differs from that computed by applying the federal statutory income tax rate of 35% to income before provision for income taxes, as indicated in the following analysis:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Income taxes at federal statutory rate	$	39,000		$	26,101		$	15,806
	Increase (reduction) of taxes resulting from:
	State income taxes, net of federal tax benefit		818			1,450			983
	Tax-exempt interest		(1,778	)		(1,792	)		(1,436	)
	Income tax credits		(1,257	)		(1,094	)		(571	)
	Dividends received deduction		(5	)		(4	)		(3	)
	Other, net		(787	)		694			349
		$	35,991		$	25,355		$	15,128
	The components of the net deferred tax asset, included in other assets are as follows:
		December 31,
	(Dollars in thousands)	2014			2013
	Allowance for loan losses	$	13,611		$	13,386
	Other-than-temporary impairment on securities		120			136
	Share-based compensation		1,762			952
	Pension plan and post-retirement benefits		1,063			159
	Deferred compensation		2,523			2,030
	Purchase accounting adjustments		53,052			72,104
	Other real estate owned		1,926			8,141
	Tax deductible goodwill		1,624			1,724
	Net operating loss carryforwards		17,127			17,722
	Cash flow hedge		326			348
	Unrealized losses on investment securities available for sale		—			3,440
	Other		1,024			4,678
	Total deferred tax assets		94,158			124,820
	Gain on FDIC assisted transaction deferred for tax purposes		9,856			11,689
	Unrealized gains on investment securities available for sale		3,369			—
	Depreciation		6,388			5,123
	Intangible assets		15,584			17,985
	Deferred loan fees		3,445			3,698
	Prepaid expense		537			669
	Other		10,809			10,851
	Total deferred tax liabilities		49,988			50,015
	Net deferred tax asset (liability) before valuation allowance		44,170			74,805
	Less, valuation allowance		(1,478	)		(1,042	)
	Net deferred tax asset	$	42,692		$	73,763
	The Company had federal net operating loss and tax credits carryforwards of $34.7 million and $38.2 million for the years ended December 31, 2014 and 2013, respectively, which expire in varying amounts through 2023. As a result of the Peoples and Savannah ownership changes in 2012, Section 382 of the Internal Revenue Code places an annual limitation of the amount of federal net operating loss carryforwards which the Company may utilize. Additionally, section 382 limits the Company's ability to utilize certain tax deductions (realized built-in losses or RBIL) due to the existence of a Net Unrealized Built-in Loss (NUBIL) at the time of the change in control. The Company is allowed to carry forward any such RBIL under terms similar to those related to NOLs. Consequently, $11.8 million of the Company's RBIL carryforwards attributed to the Peoples acquisition are subject to annual limitations of $1.5 million, and $22.9 million of the Company's NOL and RBIL carryforwards attributed to the Savannah acquisition are subject to annual limitation of $2.0 million. All of the NUBIL limitations were exhausted as of December 31, 2013. The Company expects all section 382 limited carryforwards to be realized within the applicable carryforward period.
	The Company had state net operating loss carryforwards of $50.6 million and $40.5 million for the years ended December 31, 2014 and 2013 respectively, which expire in varying amounts through 2024. There is a valuation allowance of $1.5 million that relates to the parent company's state operating loss carryforwards for which realizability is uncertain. The change in the valuation allowance for the years ended December 31, 2014, 2013, and 2012 was immaterial.
	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. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Based on the level of historical taxable income and projections for future taxable income over the periods in which the deferred tax assets are deductible, management believes it is more likely than not that the Company will realize the benefits of these deferred tax assets, net of the valuation allowance at December 31, 2014.
	As of December 31, 2014, the Company had no material unrecognized tax benefits or accrued interest and penalties. It is the Company's policy to account for interest and penalties accrued relative to unrecognized tax benefits as a component of income tax expense.
	Federal and state tax returns for 2010 and subsequent tax years remain subject to examination by taxing authorities as of December 31, 2014.

Other_Expense

Other Expense	12 Months Ended
	Dec. 31, 2014
Other Expense
Other Expense	Note 13—Other Expense
	The following is a summary of the components of other noninterest expense:
		Years Ended December 31,
	(Dollars in thousands)	2014		2013		2012
	Business development and staff related	$	5,684	$	4,962	$	2,916
	Other loan expense		2,056		2,220		1,494
	Courier expense		1,559		962		561
	Director and shareholder expense		1,550		1,290		1,196
	Property and sales tax		616		662		262
	Office supplies		488		397		392
	Other		6,938		6,301		2,978
		$	18,891	$	16,794	$	9,799

Earnings_Per_Common_Share

Earnings Per Common Share	12 Months Ended
	Dec. 31, 2014
Earnings Per Common Share
Earnings Per Common Share	Note 14—Earnings Per Common Share
	The following table sets forth the computation of basic and diluted earnings per common share:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013		2012
	Numerator:
	Net income available to common shareholders—numerator for basic and diluted earnings per share	$	74,364		$	47,865	$	30,032
	Denominator:
	Denominator for basic earnings per share—weighted-average shares outstanding		23,897			19,866		14,698
	Effect of dilutive securities:
	Employee stock options and restricted stock		257			211		98
	Dilutive potential shares:
	Denominator for diluted earnings per share—adjusted weighted-average shares		24,154			20,077		14,796
	Basic earnings per common share	$	3.11		$	2.41	$	2.04
	Diluted earnings per common share	$	3.08		$	2.38	$	2.03
	The calculation of diluted earnings per common share excludes outstanding stock options for which the results would have been antidilutive under the treasury stock method as follows:
		Years Ended December 31,
	(Dollars in thousands)	2014		2013		2012
	Number of shares	22,497		21,361		138,729
	Range of exercise prices	$61.49 to $66.32		$41.45 to $41.45		$31.10 to $40.99

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss).
Accumulated Other Comprehensive Income (Loss)	Note 15—Accumulated Other Comprehensive Income (Loss)
	The changes in each components of accumulated other comprehensive income (loss), net of tax, were as follows:
	(Dollars in thousands)	Benefit			Unrealized Gains			Gains and			Total
		Plans			and Losses			Losses on
					on Securities			Cash Flow
					Available			Hedges
					for Sale
	Balance at December 31, 2011	$	(7,823	)	$	5,935		$	(861	)	$	(2,749	)
	Other comprehensive income (loss) before reclassifications		52			2,946			(250	)		2,748
	Amounts reclassified from accumulated other comprehensive income (loss)		313			(117	)		181			377
	Net comprehensive income (loss)		365			2,829			(69	)		3,125
	Balance at December 31, 2012		(7,458	)		8,764			(930	)		376
	Other comprehensive income (loss) before reclassifications		3,555			(14,337	)		175			(10,607	)
	Amounts reclassified from accumulated other comprehensive income (loss)		318			—			190			508
	Net comprehensive income (loss)		3,873			(14,337	)		365			(10,099	)
	Balance at December 31, 2013		(3,585	)		(5,573	)		(565	)		(9,723	)
	Other comprehensive income (loss) before reclassifications		(2,201	)		11,039			(156	)		8,682
	Amounts reclassified from accumulated other comprehensive income (loss)		471			1			192			664
	Net comprehensive income (loss)		(1,730	)		11,040			36			9,346
	Balance at December 31, 2014	$	(5,315	)	$	5,467		$	(529	)	$	(377	)
	The table below presents the reclassifications out of accumulated other comprehensive income, net of tax, for the year ended December 31, 2014:
		Amount Reclassified from
		Accumulated Other
		Comprehensive Income (Loss)
		For the Year Ended December 31,
											Income Statement Line Item Affected
	Accumulated Other Comprehensive	2014			2013			2012
	Income (Loss) Component
	(Gains) losses on cash flow hedges:
	Interest rate contracts	$	310		$	307		$	293		Interest expense
			(118	)		(117	)		(112	)	Provision for income taxes
			192			190			181		Net income
	(Gains) losses on sales of available for sale securities:
		$	2		$	—		$	(189	)	Other noninterest income
			(1	)		—			72		Provision for income taxes
			1			—			(117	)	Net income
	Amortization of defined benefit pension items:
	Actuarial (gains) losses	$	761		$	482		$	471		Salaries and employee benefits
			(290	)		(164	)		(158	)	Provision for income taxes
			471			318			313		Net income
	Total reclassifications for the period	$	664		$	508		$	377

Restrictions_on_Subsidiary_Div

Restrictions on Subsidiary Dividends, Loans, or Advances	12 Months Ended
	Dec. 31, 2014
Restrictions on Subsidiary Dividends, Loans, or Advances
Restrictions on Subsidiary Dividends, Loans, or Advances	Note 16—Restrictions on Subsidiary Dividends, Loans, or Advances
	The Company pays cash dividends to shareholders from its assets, which are mainly provided by dividends from its banking subsidiary. However, certain restrictions exist regarding the ability of its subsidiary to transfer funds to the Company in form of cash dividends, loans or advances. The approval of the South Carolina Board of Financial Institutions ("SCBFI") is required to pay dividends that exceed current year's net income. The Federal Reserve Board, the OCC, and the FDIC have issued policy statements which provide that bank holding companies and insured banks should generally only pay dividends out of current operating earnings. During 2012 and in conjunction with the acquisition of Peoples, the Bank paid a special dividend of $13.4 million to the Company to allow for the redemption of Peoples preferred stock (TARP). This special dividend along with a special dividend used to pay certain obligations assumed from the Savannah acquisition resulted in the Bank paying dividends that approximated current year net income.
	During January 2013, the Bank requested and received approval, from the SCBFI, to pay a special dividend of $5.0 million to the Company in order to provide working capital and the funds needed to pay the quarterly dividend to its shareholders in February of 2013. In January 2014, the Bank requested and received approval from the SCBFI to pay a special dividend of $31.4 million. These funds were used to redeem $65.0 million of outstanding preferred stock.
	Under Federal Reserve regulations, the bank is also limited as to the amount it may lend to the Company. The maximum amount available for transfer from the bank to the Company in the form of loans or advances was approximately $107.0 million and $106.7 million at December 31, 2014 and 2013, respectively.

Retirement_Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2014
Retirement Plans
Retirement Plans	Note 17—Retirement Plans
	The Company and its subsidiary have a non-contributory defined benefit pension plan covering all employees hired on or before December 31, 2005, who have attained age 21, and who have completed one year of eligible service. The Company's funding policy is based principally, among other considerations, on contributing an amount necessary to satisfy the Internal Revenue Service's funding standards.
	Effective July 1, 2009, the Company suspended the accrual of benefits for pension plan participants under the non-contributory defined benefit plan. The pension plan remained suspended as of December 31, 2014.
	The following sets forth the pension plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements:
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	24,608		$	26,703		$	25,015
	Interest cost		1,111			997			1,033
	Actuarial (gain) loss		3,057			(2,359	)		1,308
	Benefits paid		(774	)		(733	)		(653	)
	Benefit obligation at end of year		28,002			24,608			26,703
	Change in plan assets:
	Fair value of plan assets at beginning of year		27,033			22,219			19,233
	Actual return on plan assets		1,592			4,347			2,439
	Employer contribution		600			1,200			1,200
	Benefits paid		(774	)		(733	)		(653	)
	Fair value of plan assets at end of year		28,451			27,033			22,219
	Funded status	$	449		$	2,425		$	(4,484	)
	At December 31, 2014 and 2013, the net losses recognized in accumulated other comprehensive income excluding related income tax effects were $8.2 million and $5.5 million, respectively.
	The components of net periodic pension cost and other amounts recognized in other comprehensive income are as follows:
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Interest cost	$	1,110		$	997		$	1,033
	Expected return on plan assets		(1,938	)		(1,721	)		(1,631	)
	Recognized net actuarial loss		659			1,206			1,069
	Net periodic benefit cost		(169	)		482			471
	Net (gain) loss		3,404			(4,986	)		500
	Amortization of net loss		(659	)		(1,206	)		(1,069	)
	Total amount recognized in other comprehensive income		2,745			(6,192	)		(569	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	2,576		$	(5,710	)	$	(98	)
	The amount of estimated net loss for the defined benefit pension plan that will be amortized from accumulated other comprehensive income into periodic benefit cost over the next fiscal year is $898,000.
	The following is information as of the measurement date:
		December 31,
	(Dollars in thousands)	2014			2013
	Projected benefit obligation	$	28,002		$	24,608
	Accumulated benefit obligation		28,002			24,608
	Fair value of plan assets		28,451			27,033
	The Company used a 3.70% and 4.60% discount rate in its weighted-average assumptions used to determine the benefit obligation at December 31, 2014, and 2013, respectively. The rate of compensation increase was not applicable in the Company's weighted-average assumptions because of the plan curtailment at June 30, 2009. The weighted-average assumptions used to determine net periodic pension cost are as follows:
		Years Ended December 31,
		2014			2013			2012
	Discount rate		4.60	%		3.80	%		4.20	%
	Expected long-term return on plan assets		7.75	%		7.75	%		7.75	%
	For the years ended December 31, 2014, 2013, and 2012, the discount rate of 4.60%, 3.80%, and 4.20%, respectively, was determined by matching the projected benefit obligation cash flows of the plan to an independently derived yield curve, to arrive at the single equivalent rate.
	The expected rate of return for the pension plan's assets represents the average rate of return to be earned on plan assets over the period the benefits included in the benefit obligation are to be paid. In developing the expected rate of return, the Company considered long-term compound annualized returns of historical market data as well as historical actual returns on the Company's plan assets. Using this reference information, the Company developed forward- looking return expectations for each asset category and a weighted average expected long-term rate of return for a targeted portfolio allocated across these investment categories. In developing the 7.75% long-term rate of return assumption for the pension plan, the Company utilized the following long-term rate of return and standard deviation assumptions:
	Asset Class	Rate of Return			Standard Deviation
		Assumption			Assumption
	Cash Equivalents		3.00	%		0.60	%
	High Grade Fixed Income		6.32	%		3.50	%
	High Yield Fixed Income		8.31	%		8.96	%
	International Fixed Income		6.74	%		8.36	%
	Large Cap Equity		10.05	%		16.95	%
	Mid Cap Equity		11.56	%		17.54	%
	Mid/Small Cap Equity		10.26	%		18.99	%
	Small Cap Equity		8.96	%		20.43	%
	Foreign Equity		7.27	%		17.43	%
	The portfolio's equity weighting is consistent with the long-term nature of the Plan's benefit obligation, and the expected annual return on the portfolio of 7.75%.
	The policy, as established by the Investment Committee of the Defined Benefit Pension Plan, seeks to maximize return within reasonable and prudent levels of risk. The overall long-term objective of the Plan is to achieve a rate of return that exceeds the actuarially assumed rate of return of 7.75%. The investment policy is reviewed on a regular basis and revised when appropriate based on the legal or regulatory environment, market trends, or other fundamental factors. In determining the long-term rate of return for the pension plan, the Company considers historical rates of return and the nature of the plan's investments. Plan assets are divided among various investment classes with allowable allocation percentages as follows: Equities 55-65%, Fixed Income 20-40%, Cash Equivalents 0-35%. As of December 31, 2014, approximately 64% of pension plan assets were invested with equity managers, approximately 28% of pension plan assets were invested with fixed income managers, and approximately 8% of pension plan assets were held in cash equivalents. The difference between actual and expected returns on plan assets is accumulated and amortized over future periods and, therefore, affects the recognized expenses in such future periods.
	Following is a description of valuation methodologies used for assets recorded at fair value.
	Money Market Funds
	Money Market Funds are public investment vehicles valued using $1 for the Net Asset Value (the "NAV"). The money market funds are classified within level 1 of the valuation hierarchy.
	Broad Market Fixed Income, Domestic Equity and Foreign Equity Mutual Funds
	Broad Market Fixed Income, Domestic Equity and Foreign Equity mutual funds are public investment vehicles valued using the NAV provided by the administrator of the fund. The NAV is based on the value of the underlying assets owned by the fund, minus its liabilities, and then divided by the number of shares outstanding. The NAV is a quoted price in an active market and classified within level 1 of the valuation hierarchy.
	The fair values of the Company's pension plan assets at December 31, 2014 by asset category are as follows:
(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
	December 31,			In Active			Other			Unobservable
	2014			Markets			Observable			Inputs
				for Identical			Inputs			(Level 3)
				Assets			(Level 2)
				(Level 1)
Cash and cash equivalents	$	4		$	4		$	—		$	—
Money market funds		2,393			2,393			—			—
Broad market fixed income		8,098			8,098			—			—
Domestic equity		15,459			15,459			—			—
Foreign equity		2,497			2,497			—			—
Total assets	$	28,451		$	28,451		$	—		$	—
As of December 31, 2014 and 2013, the Plan's domestic equity securities did not include any of the Company's common stock. The plan made no purchases of the Company's stock during 2014, 2013 and 2012.
Estimated future benefit payments for the next ten years:
(Dollars in thousands)
2015	$	1,065
2016		1,181
2017		1,297
2018		1,393
2019		1,443
2020-2024		7,792
	$	14,171
Expenses incurred and charged against operations with regard to all of the Company's retirement plans were as follows:
	Years Ended December 31,
(Dollars in thousands)	2014			2013			2012
Pension	$	(169	)	$	482		$	471
Employee savings plan/ 401(k)		4,966			3,508			1,741
Supplemental executive retirement plan		88			455			543
Post-retirement benefits		242			164			59
	$	5,127		$	4,609		$	2,814
The Company does not expect to contribute to the pension plan in 2015, but reserves the right to contribute between the minimum required and maximum deductible amounts as determined under applicable federal laws.
The Company and its subsidiaries have a Safe Harbor plan. Under the plan, electing employees are eligible to participate after attaining age 18. Plan participants elect to contribute portions of their annual base compensation in any combination of pre-tax deferrals or Roth post-tax deferrals subject to the annual IRS limit. Employer contributions may be made from current or accumulated net profits. Participants may elect to contribute 1% to 50% of annual base compensation as a before tax contribution. Employees participating in the plan receive a 100% matching of their 401(k) plan contribution, up to 5% of salary.
Employees hired on January 1, 2006 or thereafter will not participate in the defined benefit pension plan, but are eligible to participate in the employees' savings plan.
Employees can enter the savings plan on or after the first day of each month. The employee may enter into a salary deferral agreement at any time to select an alternative deferral amount or to elect not to defer in the Plan. If the employee does not elect an investment allocation, the plan administrator will select a retirement-based portfolio according to the employee's number of years until normal retirement age. The plan's investment valuations are generally provided on a daily basis.

PostRetirement_Benefits

Post-Retirement Benefits	12 Months Ended
	Dec. 31, 2014
Post-Retirement Benefits
Post-Retirement Benefits	Note 18—Post-Retirement Benefits
	At December 31, 2014, the Company and its subsidiary have two post-retirement health and life insurance benefit plans, South State Bank Retiree Medical Plan (the "retiree medical plan") and the First Federal Retiree Welfare Plan (the "retiree welfare plan").
	Retiree Medical Plan
	Under the retiree medical plan, post-retirement health and life insurance benefits are provided to eligible employees, such benefits being limited to those employees of the Company eligible for early retirement under the pension plan on or before December 31, 1993, and former employees who are currently receiving benefits. The plan was unfunded at December 31, 2014, and the liability for future benefits has been recorded in the consolidated financial statements.
	The following sets forth the retiree medical plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements:
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	444		$	518		$	555
	Interest cost		15			19			22
	Actuarial (gain) loss		24			(41	)		(4	)
	Benefits paid		(47	)		(52	)		(55	)
	Benefit obligation at end of year		436			444			518
	Change in plan assets:
	Fair value of plan assets at beginning of year		—			—			—
	Employer contribution		47			52			55
	Benefits paid		(47	)		(52	)		(55	)
	Fair value of plan assets at end of year		—			—			—
	Funded status	$	(436	)	$	(444	)	$	(518	)
	Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost are as follows:
		Years Ended
		December 31,
		2014			2013			2012
	Weighted-average assumptions used to determine benefit obligation at December 31:
	Discount rate		3.00	%		3.60	%		3.80	%
	Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:
	Discount rate		3.60	%		3.80	%		4.20	%
	Assumed health care cost trend rates at December 31:
	Health care cost trend rate assumed for next year		5.00	%		5.00	%		5.00	%
	Components of net periodic benefit cost and other amounts recognized in other comprehensive income are as follows:
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Interest cost	$	15		$	19		$	22
	Amortization of transition obligation		—			—			26
	Recognized net actuarial loss		6			10			11
	Net periodic benefit cost		21			29			59
	Net (gain) loss		24			(41	)		(4	)
	Amortization of transition obligation		—			—			(26	)
	Amortization of loss		(6	)		(10	)		(11	)
	Total amount recognized in other comprehensive income		18			(51	)		(41	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	39		$	(22	)	$	18
	The estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year is $9,000.
	Assumed health care cost trend rates have a significant effect on the amounts reported for the post-retirement benefit plan. A one-percentage-point change in assumed health care cost trend rates would have the following effects at the end of 2014:
		One-Percentage
		Point
	(Dollars in thousands)	Increase			Decrease
	Effect on total of interest cost	$	1		$	(1	)
	Effect on postretirement benefit obligation		27			(25	)
	Estimated future benefit payments (including expected future service as appropriate):
	(Dollars in thousands)
	2015	$	45
	2016		44
	2017		43
	2018		42
	2019		40
	2020-2024		166
		$	380
	The Company expects to contribute approximately $45,000 to the retiree medical plan in 2015.
	Retiree Welfare Plan
	Under the retiree welfare plan, post-retirement health and life insurance benefits are provided to eligible employees, such benefits being limited to retired FFHI employees who are currently receiving benefits. The plan was unfunded at December 31, 2014, and the liability for future benefits has been recorded in the consolidated financial statements. Prior to the July 26, 2013 FFHI merger, the company had no obligations under the retiree welfare plan, therefore information is presented as of December 31, 2014 and 2013 and for the year ending December 31, 2014 and for the period from July 26, 2013 to December 31, 2013.
	The following sets forth the retiree welfare plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements:
		December 31,
	(Dollars in thousands)	2014			2013
Change in benefit obligation:
Benefit obligation at beginning of year	$	2,197		$	2,231
Interest cost		85			37
Participants' contributions		72			63
Actuarial (gain) loss		299			(4	)
Benefits paid		(322	)		(145	)
less: federal subsidy on benefits paid		—			15
Benefit obligation at end of year		2,331			2,197
Change in plan assets:
Fair value of plan assets at beginning of year		—			—
Employer contribution		250			82
Participants' contributions		72			63
Benefits paid		(322	)		(145	)
Fair value of plan assets at end of year		—			—
Funded status	$	(2,331	)	$	(2,197	)
Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost are as follows:
	Year Ended
	December 31,
	2014			2013
Weighted-average assumptions used to determine benefit obligation at December 31:
Discount rate		3.45	%		4.05	%
Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:
Discount rate		4.05	%		3.95	%
Assumed health care cost trend rates at December 31:
Health care cost trend rate assumed for next year		6.50	%		6.75	%
Components of net periodic benefit cost and other amounts recognized in other comprehensive income are as follows:
	Years Ended
	December 31,
(Dollars in thousands)	2014			2013
Interest cost	$	84		$	36
Recognized net actuarial loss		96			39
Net periodic benefit cost		180			75
Net (gain) loss		299			(4	)
Amortization of loss		(96	)		(39	)
Total amount recognized in other comprehensive income		203			(43	)
Total recognized in net periodic benefit cost and other comprehensive income	$	383		$	32
The estimated net loss for the retiree welfare plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year is $115,000.
Assumed health care cost trend rates have a significant effect on the amounts reported for the post-retirement benefit plan. A one-percentage-point change in assumed health care cost trend rates would have the following effects at the end of 2014:
	One-Percentage
	Point
(Dollars in thousands)	Increase			Decrease
Effect on aggregate service and interest cost	$	6		$	(5	)
The Company expects to contribute approximately $205,000 to the retiree welfare plan in 2015.

ShareBased_Compensation

Share-Based Compensation	12 Months Ended
	Dec. 31, 2014
Share-Based Compensation
Share-Based Compensation	Note 19—Share-Based Compensation
	Compensation cost is recognized for stock options and restricted stock awards issued to employees. Compensation cost is measured as the fair value of these awards on their 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 as the fair value of restricted stock awards. Compensation cost is recognized over the required service period, generally defined as the vesting period for stock option awards and as the restriction period for restricted stock awards. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award.
	The Company's 1999, 2004, and 2012 stock incentive programs are long-term retention programs intended to attract, retain, and provide incentives for key employees and non-employee directors in the form of incentive and non-qualified stock options and restricted stock.
	Stock Options
	With the exception of non-qualified stock options granted to directors under the 1999, 2004, and 2012 plans, which in some cases may be exercised at any time prior to expiration and in some other cases may be exercised at intervals less than a year following the grant date, incentive stock options granted under the plans may not be exercised in whole or in part within a year following the date of the grant, as these incentive stock options become exercisable in 25% increments pro ratably over the four-year period following the grant date. The options are granted at an exercise price at least equal to the fair value of the common stock at the date of grant and expire ten years from the date of grant. No options were granted under the 1999 plan after January 2, 2004, and the 1999 plan is closed other than for any options still unexercised and outstanding. No options were granted under the 2004 plan after January 26, 2012, and the 2004 plan is closed other than for any options still unexercised and outstanding. The 2012 plan is the only plan from which new share-based compensation grants may be issued. It is the Company's policy to grant options out of the 1,684,000 shares registered under the 2012 plan, of which no more than 817,476 shares can be granted as restricted stock.
	Activity in the Company's stock option plans is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits.
		Years Ended December 31,
		2014						2013						2012
		Shares			Weighted			Shares			Weighted			Shares			Weighted
					Average						Average						Average
					Exercise						Exercise						Exercise
					Price						Price						Price
	Outstanding at January 1		295,916		$	33.26			340,140		$	31.79			370,207		$	30.69
	Granted		22,497			65.59			23,007			41.45			28,224			31.75
	Exercised		(22,878	)		31.06			(65,555	)		28.75			(51,887	)		23.99
	Forfeited		(1,180	)		31.97			(220	)		27.22			(6,150	)		31.8
	Expired		(13	)		27.22			(1,456	)		22.17			(254	)		15.93
	Outstanding at December 31		294,342			35.91			295,916			33.26			340,140			31.79
	Exercisable at December 31		239,417			33.17			233,566			32.66			267,941			31.73
	Weighted-average fair value of options granted during the year				$	26.44					$	15.66					$	11.55
	The aggregate intrinsic value of 294,342, 295,916, and 267,941 stock options outstanding at December 31, 2014, 2013, and 2012 was $9.2 million, $9.8 million, and $2.9 million, respectively. The aggregate intrinsic value of 239,417, 233,566, and 267,941 stock options exercisable at December 31, 2014, 2013, and 2012 was $8.1 million, $7.9 million, and $2.3 million, respectively. The aggregate intrinsic value of 22,878, 65,555, and 51,887 stock options exercised for the years ended December 31, 2014, 2013, and 2012 was $724,000, $1.8 million, and $757,000, respectively.
	Information pertaining to options outstanding at December 31, 2014, is as follows:
		Options Outstanding								Options Exercisable
	Range of Exercise Prices	Number			Weighted		Weighted			Number			Weighted			Weighted
		Outstanding			Average		Average			Outstanding			Average			Average
					Remaining		Exercise Price						Exercise Price			Remaining
					Contractual											Contractual
					Life											Life
	$25.01 - $30.00		42,198		3.7 years			27.51			42,196			27.51
	$30.01 - $35.00		142,758		4.1 years			31.80			125,296			31.78
	$35.01 - $40.00		61,482		3.2 years			38.07			61,479			38.07
	$40.01 - $45.00		25,407		7.8 years			41.41			9,384			41.33
	$60.01 - $66.32		22,497		9.1 years			65.59			1,062			65.21
			294,342		4.5 years			35.91			239,417			33.17		3.7 years
	The fair value of options is estimated at the date of grant using the Black- Scholes option pricing model and expensed over the options' vesting periods. The following weighted-average assumptions were used in valuing options issued:
		2014		2013		2012
	Dividend yield	1.27%		1.70%		2.10%
	Expected life	6 years		6 years		6 years
	Expected volatility	43.8% - 44.7%		45.7% - 45.7%		45.8% - 45.8%
	Risk-free interest rate	2.10%		1.02%		1.06%
	As of December 31, 2014, there was $666,000 of total unrecognized compensation cost related to non-vested stock option grants under the plans. The cost is expected to be recognized over a weighted-average period of 1.00 year as of December 31, 2014. The total fair value of shares vested during the years ended December 31, 2014, 2013 and 2012 was approximately $413,000, $402,000 and $402,000, respectively. Compensation expense of $394,000, $419,000, and $382,000 was recorded in 2014, 2013, and 2012, respectively.
	Restricted Stock
	The Company from time-to-time also grants shares of restricted stock to key employees and non-employee directors. These awards help align the interests of these employees and directors with the interests of the shareholders of the Company by providing economic value directly related to increases in the value of the Company's stock. The value of the stock awarded is established as the fair market value of the stock at the time of the grant. The Company recognizes expense, equal to the total value of such awards, ratably over the vesting period of the stock grants. Grants to employees typically cliff vest after four years. Grants to non-employee directors typically vest within a 12-month period.
	All restricted stock agreements are conditioned upon continued employment. Termination of employment prior to a vesting date, as described below, would terminate any interest in non-vested shares. Prior to vesting of the shares, as long as employed by the Company, the key employees and non-employee directors will have the right to vote such shares and to receive dividends paid with respect to such shares. All restricted shares will fully vest in the event of change in control of the Company or upon the death of the recipient.
	Non-vested restricted stock for the year ended December 31, 2014 is summarized in the following table. All information has been retroactively adjusted for stock dividends and stock splits.
	Restricted Stock	Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Nonvested at January 1, 2014		232,547		$	35.15
	Granted		28,014			60.4
	Vested		(27,200	)		40.9
	Forfeited		(4,454	)		41.45
	Nonvested at December 31, 2014		228,907			37.44
	The Company granted 28,014, 83,760, and 47,666 shares for the years ended December 31, 2014, 2013, and 2012, respectively. The weighted-average- grant-date fair value of restricted shares granted in 2014, 2013, and 2012 was $60.40, $43.33, and $32.27, respectively. Compensation expense of $2.3 million, $2.2 million, and $1.3 million was recorded in 2014, 2013, and 2012, respectively.
	The vesting schedule of these shares as of December 31, 2014 is as follows:
		Shares
	2015		35,758
	2016		79,261
	2017		52,892
	2018		34,920
	2019		4,467
	Thereafter		21,609
			228,907
As of December 31, 2014, there was $4.2 million of total unrecognized compensation cost related to non-vested restricted stock granted under the plans. The cost is expected to be recognized over a weighted-average period of 2.31 years as of December 31, 2014. The total fair value of shares vested during the years ended December 31, 2014, 2013 and 2012 was approximately $1.2 million $759,000 and $1.3 million, respectively.
Restricted Stock Units
The Company from time-to-time also grants performance RSUs to key employees. These awards help align the interests of these employees with the interests of the shareholders of the Company by providing economic value directly related to the performance of the Company. Performance RSU grants contain a three year performance period. The Company communicates threshold, target, and maximum performance RSU awards and performance targets to the applicable key employees at the beginning of a performance period. Dividends are not paid in respect to the awards during the performance period. The value of the RSUs awarded is established as the fair market value of the stock at the time of the grant. The Company recognizes expenses on a straight-line basis typically over three years based upon the probable performance target that will be met. For the year ended December 31, 2014, the Company accrued for 70.7% of the RSUs granted, based on Management's expectations of performance.
Nonvested RSUs for the year ended December 31, 2014 is summarized in the following table.
Restricted Stock Units	Shares			Weighted-
				Average
				Grant-Date
				Fair Value
Nonvested at January 1, 2014		43,820		$	51.01
Granted		37,802			61.49
Vested		(2,314	)		54
Nonvested at December 31, 2014		79,308			55.92
The Company granted 37,802 and 43,820 shares for the year ended December 31, 2014 and 2013, respectively. The Company had not granted RSUs prior to 2013. The weighted-average grant-date fair value of restricted shares granted in 2014 was $61.49. Compensation expense of $1.2 million and $700,000 was recorded in 2014 and 2013, respectively.
As of December 31, 2014, there was $2.7 million of total unrecognized compensation cost related to nonvested RSUs granted under the plan. This cost is expected to be recognized over a weighted-average period of 1.48 years as of December 31, 2014.
Employee Stock Purchase Plan
The Company has registered 363,825 shares of common stock in connection with the establishment of an Employee Stock Purchase Plan. The plan, which expires June 30, 2017, is available to all employees who have attained age 21 and completed six months of service. The Company currently has more than 130,000 shares available for issuances under the plan. The price at which common stock may be purchased for each quarterly option period is the lesser of 95% of the common stock's fair value on either the first or last day of the quarter.
The 2002 Employee Stock Purchase Plan permits eligible employees to purchase Company stock at a discounted price. Beginning July 1, 2009, the 15% discount was reduced to 5%. The Company recognized $44,000, $41,000 and $38,000 in share-based compensation expense for the years ended December 31, 2014, 2013 and 2012, respectively.

Stock_Repurchase_Program

Stock Repurchase Program	12 Months Ended
	Dec. 31, 2014
Stock Repurchase Program
Stock Repurchase Program	Note 20—Stock Repurchase Program
	In February 2004, the Company's Board of Directors authorized a repurchase program to acquire up to 250,000 shares of its outstanding common stock. This program superseded any previously announced programs that may have had remaining available shares for repurchase. Under the announced stock repurchase program, the Company did not repurchase any shares during the years ended December 31, 2014, 2013 and 2012. Under other arrangements where directors or officers surrendered currently owned shares to the Company to acquire proceeds for exercising stock options or paying taxes on currently vesting restricted stock, the Company repurchased 14,723, 17,186, and 23,532 shares at a cost of $917,000, $933,000, and $836,000 in 2014, 2013, and 2012, respectively.

Lease_Commitments

Lease Commitments	12 Months Ended
	Dec. 31, 2014
Lease Commitments
Lease Commitments	Note 21—Lease Commitments
	The Company's subsidiary was obligated at December 31, 2014, under certain noncancelable operating leases extending to the year 2038 pertaining to banking premises and equipment. Some of the leases provide for the payment of property taxes and insurance and contain various renewal options. The exercise of renewal options is, of course, dependent upon future events. Accordingly, the following summary does not reflect possible additional payments due if renewal options are exercised.
	Future minimum lease payments, by year and in the aggregate, under noncancelable operating leases with initial or remaining terms in excess of one year are as follows:
	(Dollars in thousands)
	Years Ending December 31,
	2015		5,064
	2016		4,996
	2017		4,737
	2018		4,020
	2019		3,163
	Thereafter		16,302
		$	38,282
	Total lease expense for the years ended December 31, 2014, 2013, and 2012 was $6.2 million, $5.1 million and $3.3 million, respectively.

Contingent_Liabilities

Contingent Liabilities	12 Months Ended
	Dec. 31, 2014
Contingent Liabilities
Contingent Liabilities	Note 22—Contingent Liabilities
	The Company has been named as defendant in various legal actions, arising from its normal business activities, in which damages in various amounts are claimed. The Company is also exposed to litigation risk related to the prior business activities of banks acquired through whole bank acquisitions as well as banks from which assets were acquired and liabilities assumed in FDIC-assisted transactions. Although the amount of any ultimate liability with respect to such matters cannot be determined, in the opinion of management, any such liability will not have a material effect on the Company's consolidated financial statements.
	The Company and its subsidiary are involved at times in certain litigation arising in the normal course of business. In the opinion of management as of December 31, 2014, there is no pending or threatened litigation that will have a material effect on the Company's consolidated financial position or results of operations.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions
Related Party Transactions	Note 23—Related Party Transactions
	During 2014 and 2013, the Company's banking subsidiary had loan and deposit relationships with certain related parties, principally directors and executive officers, their immediate families and their business interests. All of these relationships were in the ordinary course of business at rates and terms substantially consistent with similar transactions with unrelated parties. Loans outstanding to this group (including immediate families and business interests) totaled $10.7 million and $10.2 million at December 31, 2014 and 2013 respectively. During 2014, $5.5 million of new loans were made to this group while repayments of $5.0 million were received during the year. There were also certain individuals that were considered related parties in 2013 who were not considered related parties in 2014 due to retirement, change in job function, or other reasons. Related party deposits totaled approximately $15.5 million and $14.5 million at December 31, 2014 and 2013, respectively.

Financial_Instruments_with_Off

Financial Instruments with Off-Balance Sheet Risk	12 Months Ended
	Dec. 31, 2014
Financial Instruments with Off-Balance Sheet Risk
Financial Instruments with Off-Balance Sheet Risk	Note 24—Financial Instruments with Off-Balance Sheet Risk
	The Company's subsidiary is a party to credit related financial instruments with off-balance sheet risks in the normal course of business to meet the financing needs of their customers. These financial instruments include commitments to extend credit, standby letters of credit and financial guarantees. Such commitments involve, to varying degrees, elements of credit, interest rate, or liquidity risk in excess of the amounts recognized in the consolidated balance sheets. The contract amounts of these instruments express the extent of involvement the subsidiary has in particular classes of financial instruments.
	The subsidiary's exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit, standby letters of credit, and financial guarantees is represented by the contractual amount of those instruments. The subsidiary uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. At December 31, 2014 and 2013, the following financial instruments, whose contract amounts represent credit risk, were outstanding:
		December 31,
	(Dollars in thousands)	2014		2013
	Commitments to extend credit	$	1,259,653	$	1,299,134
	Standby letters of credit and financial guarantees		17,404		28,910
		$	1,277,057	$	1,328,044
	Commitments to Extend Credit
	Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future liquidity requirements. The Bank evaluates each customer's credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the bank upon extension of credit, is based on management's credit evaluation of the customer. Collateral held varies but may include accounts receivable, inventory, property, plant and equipment, and personal guarantees. Unfunded commitments under commercial lines-of-credit, revolving credit lines and overdraft protection agreements are commitments for possible future extensions of credit to existing customers. These lines-of-credit are uncollateralized and usually do not contain a specified maturity date and may not be drawn to the extent to which the banking subsidiary is committed.
	Standby Letters of Credit and Financial Guarantees
	Standby letters of credit and financial guarantees are conditional commitments issued by the banking subsidiary to guarantee the performance of a customer to a third party. Those letters of credit and guarantees are primarily issued to support public and private borrowing arrangements. Essentially, all standby letters of credit have expiration dates within one year. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The amount of collateral obtained, if deemed necessary, is based on management's credit evaluation of the customer.

Fair_Value

Fair Value	12 Months Ended
	Dec. 31, 2014
Fair Value
Fair Value	Note 25—Fair Value
	FASB ASC 820, Fair Value Measurements and Disclosures, defines fair value, establishes a framework for measuring fair value under accounting principles generally accepted in the United States, and enhances disclosures about fair value measurements. FASB ASC 820 clarifies that fair value should be based on the assumptions market participants would use when pricing an asset or liability and establishes a fair value hierarchy that prioritizes the information used to develop those assumptions.
	The Company utilizes fair value measurements to record fair value adjustments to certain assets and liabilities and to determine fair value disclosures. Available for sale securities and derivative contracts are recorded at fair value on a recurring basis. Additionally, from time to time, the Company may be required to record at fair value other assets on a nonrecurring basis, such as loans held for sale, impaired loans, OREO, and certain other assets. These nonrecurring fair value adjustments typically involve application of lower of cost or market accounting or write-downs of individual assets.
	FASB ASC 820 establishes a three-tier fair value hierarchy which prioritizes the inputs used in measuring fair value as follows:
	Level 1    Observable inputs such as quoted prices in active markets;
	Level 2    Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and
	Level 3    Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.
	The following is a description of valuation methodologies used for assets recorded at fair value.
	Investment Securities
	Securities available for sale are valued on a recurring basis at quoted market prices where available. If quoted market prices are not available, fair values are based on quoted market prices of comparable securities. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange and The NASDAQ Stock Market, or U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities and debentures issued by government sponsored entities, municipal bonds and corporate debt securities. Securities held to maturity are valued at quoted market prices or dealer quotes similar to securities available for sale. The carrying value of Federal Home Loan Bank stock approximates fair value based on the redemption provisions.
	Mortgage Loans Held for Sale
	Mortgage loans held for sale are carried at the lower of cost or fair market value. The fair values of mortgage loans held for sale are based on commitments on hand from investors within the secondary market for loans with similar characteristics. As such, the fair value adjustments for mortgage loans held for sale are nonrecurring Level 2.
	Loans
	The Company does not record loans at fair value on a recurring basis. However, from time to time, a loan may be considered impaired and an allowance for loan losses may be established. Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment using estimated fair value methodologies. The fair value of impaired loans is estimated using one of several methods, including collateral value, market value of similar debt, enterprise value, liquidation value and discounted cash flows. Those impaired loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. At December 31, 2014, substantially all of the impaired loans were evaluated based on the fair value of the collateral because such loans were considered collateral dependent. Impaired loans, where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value, the Company considers the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, the Company considers the impaired loan as nonrecurring Level 3.
	Other Real Estate Owned ("OREO")
	Typically non-covered OREO, consisting of properties obtained through foreclosure or in satisfaction of loans, is reported at fair value, determined on the basis of current appraisals, comparable sales, and other estimates of value obtained principally from independent sources, adjusted for estimated selling costs (Level 2). However, both non-covered and covered OREO are considered Level 3 in the fair value hierarchy because management has qualitatively applied a discount due to the size, supply of inventory, and the incremental discounts applied to the appraisals. Management also considers other factors, including changes in absorption rates, length of time the property has been on the market, and anticipated sales values, which have resulted in adjustments to the collateral value estimates indicated in certain appraisals. At the time of foreclosure, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses. Gains or losses on sale and generally any subsequent adjustments to the value are recorded as a component of OREO expense, net of any FDIC indemnification proceeds in the case of covered OREO.
	Derivative Financial Instruments
	Fair value is estimated using pricing models of derivatives with similar characteristics; accordingly, the derivatives are classified within Level 2 of the fair value hierarchy. See Note 28—Derivative Financial Instruments for additional information.
	Mortgage servicing rights ("MSRs")
	The estimated fair value of MSRs is obtained through an independent derivatives dealer analysis of future cash flows. The evaluation utilizes assumptions market participants would use in determining fair value including market discount rates, prepayment speeds, servicing income, servicing costs, default rates and other market driven data, as well as the market's perception of future interest rate movements. MSRs are classified as Level 3.
	Assets and Liabilities Recorded at Fair Value on a Recurring Basis
	The tables below present the recorded amount of assets and liabilities measured at fair value on a recurring basis.
	(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
					In Active			Other			Unobservable
					Markets			Observable			Inputs
					for Identical			Inputs			(Level 3)
					Assets			(Level 2)
					(Level 1)
	December 31, 2014:
	Assets
	Derivative financial instruments	$	3,317		$	—		$	3,317		$	—
	Securities available for sale:
	Government-sponsored entities debt	$	148,197		$	—		$	148,197		$	—
	State and municipal obligations		137,581			—			137,581			—
	Mortgage-backed securities		517,946			—			517,946			—
	Corporate stocks		3,042			2,817			225			—
	Total securities available for sale		806,766			2,817			803,949			—
	Mortgage servicing rights		21,601			—			—			21,601
		$	831,684		$	2,817		$	807,266		$	21,601
	Liabilities
	Derivative financial instruments	$	1,028		$	—		$	1,028		$	—
	December 31, 2013:
	Assets
	Derivative financial instruments	$	701		$	—		$	701		$	—
	Securities available for sale:
	Government-sponsored entities debt	$	142,994		$	—		$	142,994		$	—
	State and municipal obligations		140,651			—			140,651			—
	Mortgage-backed securities		499,479			—			499,479			—
	Corporate stocks		3,667			3,442			225			—
	Total securities available for sale		786,791			3,442			783,349			—
	Mortgage servicing rights		20,729			—			—			20,729
		$	808,221		$	3,442		$	784,050		$	20,729
	Liabilities
	Derivative financial instruments	$	1,857		$	—		$	1,857		$	—
	There were no financial instruments transferred between Level 1 and Level 2 of the valuation hierarchy for the years ended December 31, 2014, and 2013.
	Changes in Level 3 Fair Value Measurements
	When a determination is made to classify a financial instrument within Level 3 of the valuation hierarchy, the determination is based upon the significance of the unobservable factors to the overall fair value measurement. However, since Level 3 financial instruments typically include, in addition to the unobservable or Level 3 components, observable components (that is, components that are actively quoted and can be validated to external sources), the gains and losses below include changes in fair value due in part to observable factors that are part of the valuation methodology.
	There were no changes in hierarchy classifications of Level 3 assets or liabilities for the year ended December 31, 2014. A reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis for the years ended December 31, 2014 and 2013 is as follows:
	(Dollars in thousands)	Assets			Liabilities
	Fair value, January 1, 2013	$	3,851		$	—
	Mortgage and other loan income		172			—
	Acquired in the First Financial acquisition		19,156			—
	Purchases, issuances and settlements, net		(3,851	)		—
	Transfers in and/or out of level 3		1,401			—
Fair value, December 31, 2013	$	20,729		$	—
Mortgage and other loan income		(3,999	)		—
Purchases, issuances and settlements, net		4,871			—
Fair value, December 31, 2014	$	21,601		$	—
There were no unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities at December 31, 2014 or 2013.
See Note 29—Loan Servicing, Mortgage Obligation, and Loans Held for Sale for information about recurring Level 3 fair value measurements of mortgage servicing rights.
Assets and Liabilities Recorded at Fair Value on a Nonrecurring Basis
The tables below present the recorded amount of assets and liabilities measured at fair value on a nonrecurring basis:
(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
				In Active			Other			Unobservable
				Markets			Observable			Inputs
				for Identical			Inputs			(Level 3)
				Assets			(Level 2)
				(Level 1)
December 31, 2014:
OREO	$	42,726		$	—		$	—		$	42,726
Non-acquired impaired loans		12,612			—			—			12,612
December 31, 2013:
OREO	$	64,918		$	—		$	—		$	64,918
Non-acquired impaired loans		13,129			—			—			13,129
Quantitative Information about Level 3 Fair Value Measurements
	Valuation Technique		Unobservable Input		General			Weighted
					Range			Average
Nonrecurring measurements:
Impaired loans	Discounted appraisals		Collateral discounts			0 - 25	%		5.80	%
OREO	Discounted appraisals		Collateral discounts and estimated costs to sell			0 - 50	%		21.89	%
Fair Value of Financial Instruments
The following methods and assumptions were used by the Company in estimating its fair value disclosures for financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques. Those models are significantly affected by the assumptions used, including the discount rates and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instrument. The use of different methodologies may have a material effect on the estimated fair value amounts. The fair value estimates presented herein are based on pertinent information available to management as of December 31, 2014 and 2013. Such amounts have not been revalued for purposes of these consolidated financial statements since those dates and, therefore, current estimates of fair value may differ significantly from the amounts presented herein.
The following methods and assumptions were used to estimate the fair value of each class of financial instruments for which it is practicable to estimate that value:
Cash and Cash Equivalents—The carrying amount is a reasonable estimate of fair value.
Investment Securities—Securities held to maturity are valued at quoted market prices or dealer quotes. The carrying value of FHLB stock approximates fair value based on the redemption provisions. The carrying value of the Company's investment in unconsolidated subsidiaries approximates fair value.
Loans—For variable-rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values. Fair values for certain mortgage loans (e.g., one-to-four family residential) and other consumer loans are estimated using discounted cash flow analyses based on the Company's current rates offered for new loans of the same type, structure and credit quality. Fair values for other loans (e.g., commercial real estate and investment property mortgage loans, commercial and industrial loans) are estimated using discounted cash flow analyses, using interest rates currently being offered by the Company for loans with similar terms to borrowers of similar credit quality. Fair values for non-performing loans are estimated using discounted cash flow analyses or underlying collateral values, where applicable.
FDIC Indemnification Asset—The fair value is estimated based on discounted future cash flows using current discount rates.
Deposit Liabilities—The fair values disclosed for demand deposits (e.g., interest and non-interest bearing checking, passbook savings, and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). The carrying amounts of variable-rate, fixed-term money market accounts, and certificates of deposit approximate their fair values at the reporting date. Fair values for fixed-rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits.
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase—The carrying amount of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings maturing within ninety days approximate their fair values.
Other Borrowings—The fair value of other borrowings is estimated using discounted cash flow analysis on the Company's current incremental borrowing rates for similar types of instruments.
Accrued Interest—The carrying amounts of accrued interest approximate fair value.
Derivative Financial Instruments—The fair value of derivative financial instruments (including interest rate swaps) is estimated using pricing models of derivatives with similar characteristics.
Commitments to Extend Credit, Standby Letters of Credit and Financial Guarantees—The fair values of commitments to extend credit are estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of guarantees and letters of credit are based on fees currently charged for similar agreements or on the estimated costs to terminate them or otherwise settle the obligations with the counterparties at the reporting date.
The estimated fair value, and related carrying amount, of the Company's financial instruments are as follows:
(Dollars in thousands)	Carrying			Fair			Level 1			Level 2		Level 3
	Amount			Value
December 31, 2014
Financial assets:
Cash and cash equivalents	$	417,869		$	417,869		$	417,869		$	—	$	—
Investment securities		826,943			827,517			13,560			813,957		—
Loans, net of allowance for loan losses, and loans held for sale		5,680,688			5,804,951			—			60,270		5,744,681
FDIC receivable for loss share agreements		22,161			7,150			—			—		7,150
Accrued interest receivable		16,366			16,366			—			3,443		12,923
Mortgage servicing rights		21,601			21,601			—			—		21,601
Interest rate swap—non-designated hedge		172			172			—			172		—
Other derivative financial instruments (mortgage banking related)		3,145			3,145			—			3,145		—
Financial liabilities:
Deposits		6,461,045			6,193,580			—			6,193,580		—
Federal funds purchased and securities sold under agreements to repurchase		221,541			221,541			—			221,541		—
Other borrowings		101,210			98,534			—			98,534		—
Accrued interest payable		4,311			4,311			—			4,311		—
Interest rate swap—cash flow hedge		856			856			—			856		—
Interest rate swap—non-designated hedge		172			172			—			172		—
Off balance sheet financial instruments:
Commitments to extend credit		—			27,554			—			27,554		—
Standby letters of credit and financial guarantees		—			—			—			—		—
December 31, 2013
Financial assets:
Cash and cash equivalents	$	479,461		$	479,461		$	479,461		$	—	$	—
Investment securities		812,603			813,068			16,828			796,240		—
Loans, net of allowance for loan losses, and loans held for sale		5,652,458			5,742,078			—			30,586		5,711,492
FDIC receivable for loss share agreements		86,447			48,512			—			—		48,512
Accrued interest receivable		15,024			15,024			—			3,482		11,542
Mortgage servicing rights		20,729			20,729			—			—		20,729
Interest rate swap—non-designated hedge		178			178			—			178		—
Other derivative financial instruments (mortgage banking related)		523			523			—			523		—
Financial liabilities:
Deposits		6,554,144			6,313,543			—			6,313,543		—
Federal funds purchased and securities sold under agreements to repurchase		211,401			211,401			—			211,401		—
Other borrowings		102,060			92,751			—			92,751		—
Accrued interest payable		5,388			5,388			—			5,388		—
Interest rate swap—cash flow hedge		914			914			—			914		—
Interest rate swap—non-designated hedge		178			178			—			178		—
Other derivative financial instruments (mortgage banking related)		765			765			—			765		—
Off balance sheet financial instruments:
Commitments to extend credit		—			15,555			—			15,555		—
Standby letters of credit and
financial guarantees		—			—			—			—		—

Regulatory_Matters

Regulatory Matters	12 Months Ended
	Dec. 31, 2014
Regulatory Matters
Regulatory Matters	Note 26—Regulatory 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 and Bank's 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 the 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. Prompt corrective action provisions are not applicable to bank holding companies.
	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 following table) of total and Tier 1 capital (as defined in the regulations) to risk-weighted assets (as defined), and of Tier 1 capital (as defined) to average assets (as defined). Management believes, at December 31, 2014 and 2013, the Company and the Bank met all capital adequacy requirements to which they are subject.
	As of their most recent regulatory examinations, the Company and the Bank were considered well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, an institution must maintain minimum total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios as set forth in the following table. There are no conditions or events subsequent to the most recent examinations that management believes have changed the institutions' category.
	Actual capital amounts and ratios are presented in the table below:
		Actual					Minimum Capital					Minimum To Be
							Requirement					Well Capitalized
												Under Prompt
												Corrective Action
												Provisions
	(Dollars in thousands)	Amount		Ratio			Amount		Ratio			Amount		Ratio
	December 31, 2014:
	Total risk-based capital (to risk-weighted assets):
	Consolidated	$	755,484		14.43	%	$	418,982		8.00	%		n/a		n/a
	SCBT (the Bank)		742,393		14.18	%		418,877		8.00	%		523,596		10.00	%
	Tier 1 capital (to risk-weighted assets):
	Consolidated		713,371		13.62	%		209,491		4.00	%		n/a		n/a
	SCBT (the Bank)		700,280		13.37	%		209,438		4.00	%		314,158		6.00	%
	Tier 1 capital (to average assets):
	Consolidated		713,371		9.47	%		301,363		4.00	%		n/a		n/a
	SCBT (the Bank)		700,280		9.30	%		301,162		4.00	%		376,452		5.00	%
	December 31, 2013:
	Total risk-based capital (to risk-weighted assets):
	Consolidated	$	752,781		14.47	%	$	416,151		8.00	%		n/a		n/a
	SCBT (the Bank)		741,351		14.26	%		415,904		8.00	%		519,881		10.00	%
	Tier 1 capital (to risk-weighted assets):
	Consolidated		706,531		13.58	%		208,076		4.00	%		n/a		n/a
	SCBT (the Bank)		695,102		13.37	%		207,952		4.00	%		311,928		6.00	%
	Tier 1 capital (to average assets):
	Consolidated		706,531		9.30	%		303,842		4.00	%		n/a		n/a
	SCBT (the Bank)		695,102		9.16	%		303,452		4.00	%		379,315		5.00	%

Condensed_Financial_Statements

Condensed Financial Statements of Parent Company	12 Months Ended
	Dec. 31, 2014
Condensed Financial Statements of Parent Company
Condensed Financial Statements of Parent Company	Note 27—Condensed Financial Statements of Parent Company
	Financial information pertaining only to South State Corporation is as follows:
	Condensed Balance Sheet
		December 31,
	(Dollars in thousands)	2014			2013
	ASSETS
	Cash	$	13,185		$	11,757
	Investment securities available for sale		535			519
	Investment in subsidiaries		1,072,796			1,070,291
	Other assets		1,023			420
	Total assets	$	1,087,539		$	1,082,987
	LIABILITIES AND SHAREHOLDERS' EQUITY
	Liabilities		102,619			101,518
		$			$
	Shareholders' equity		984,920			981,469
	Total liabilities and shareholders' equity	$	1,087,539		$	1,082,987
	Condensed Statements of Income
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Income:
	Dividends from subsidiaries	$	89,922		$	18,135		$	33,669
	Operating income		583			223			59
	Total income		90,505			18,358			33,728
	Operating expenses		12,026			7,294			2,482
	Income before income tax benefit and equity in undistributed earnings of subsidiaries		78,479			11,064			31,246
	Applicable income tax benefit		3,628			2,360			812
	Equity in undistributed earnings of subsidiary (excess distribution)		(6,670	)		35,795			(2,026	)
	Net income		75,437			49,219			30,032
	Preferred stock dividends		1,073			1,354			—
	Net income available to common shareholders	$	74,364		$	47,865		$	30,032
	Condensed Statements of Cash Flows
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Cash flows from operating activities:
	Net income	$	75,437		$	49,219		$	30,032
	Adjustments to reconcile net income to net cash provided by operating activities:
	Depreciation and amortization		339			264			—
	Share-based compensation		3,908			3,322			1,741
	Decrease (increase) in other assets		852			1,231			(83	)
	Decrease in other liabilities		(715	)		(788	)		(3,511	)
	Undistributed earnings of subsidiary		6,670			(35,795	)		2,026
	Net cash provided by operating activities		86,491			17,453			30,205
	Cash flows from investing activities:
	Net cash outlay for acquisitions		—			2,557			(12,357	)
	Proceeds from business divestitures		—			520			—
	Other, net		177			—			—
	Net cash provided by (used in) investing activities		177			3,077			(12,357	)
	Cash flows from financing activities:
	Note payable repayment		—			—			(7,155	)
	Common stock issuance		826			781			720
	Common stock repurchased		(917	)		(933	)		(836	)
	Preferred stock redeemed		(65,000	)		—			—
	Dividends paid on preferred stock		(1,073	)		(1,354	)		—
	Dividends paid on common stock		(19,785	)		(15,274	)		(10,244	)
	Stock options exercised		709			1,885			1,244
	Net cash used in financing activities		(85,240	)		(14,895	)		(16,271	)
	Net increase in cash and cash equivalents		1,428			5,635			1,577
	Cash and cash equivalents at beginning of period		11,757			6,122			4,545
	Cash and cash equivalents at end of period	$	13,185		$	11,757		$	6,122

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2014
Derivative Financial Instruments
Derivative Financial Instruments	Note 28—Derivative Financial Instruments
	Cash Flow Hedges of Interest Rate Risk
	The Company is exposed to interest rate risk in the course of its business operations and manages a portion of this risk through the use of derivative financial instruments, in the form of interest rate swaps. The Company accounts for its interest rate swap that is classified as a cash flow hedge in accordance with FASB ASC 815, Derivatives and Hedging, which requires that all derivatives be recognized as assets or liabilities on the balance sheet at fair value. For more information regarding the fair value of the Company's derivative financial instruments, see Note 25 to these financial statements.
	The Company utilizes the interest rate swap agreement to essentially convert a portion of its variable-rate debt to a fixed rate (cash flow hedge). For derivatives designated as hedging exposure to variable cash flows of a forecasted transaction (cash flow hedge), the effective portion of the derivative's gain or loss is initially reported as a component of other comprehensive income and subsequently reclassified into earnings when the forecasted transaction affects earnings or when the hedge is terminated. The ineffective portion of the gain or loss is reported in earnings immediately. For derivatives that are not designated as hedging instruments, changes in the fair value of the derivatives are recognized in earnings immediately.
	When applying hedge accounting for derivatives, the Company establishes a method for assessing the effectiveness of the hedging derivative and a measurement approach for determining the ineffective aspect of the hedge upon the inception of the hedge.
	During 2009, the Company entered into a forward starting interest rate swap agreement with a notional amount of $8.0 million to manage interest rate risk due to periodic rate resets on its junior subordinated debt issued by SCBT Capital Trust II, an unconsolidated subsidiary of the Company established for the purpose of issuing trust preferred securities. The Company hedges the variable rate cash flows of subordinated debt against future interest rate increases by using an interest rate swap to effectively fix the rate on the debt beginning on June 15, 2010, at which time the debt contractually converted from a fixed interest rate to a variable interest rate. This hedge expires on June 15, 2019. The notional amount on which the interest payments are based will not be exchanged. This derivative contract calls for the Company to pay a fixed rate of 4.06% on $8.0 million notional amount and receive a variable rate of three-month LIBOR on the $8.0 million notional amount.
	The Company recognized an after-tax unrealized gain on its cash flow hedge in other comprehensive income for the year ended December 31, 2014 of $36,000, compared to a $365,000 gain for the year ended December 31, 2013. The Company recognized an $856,000 and a $914,000 cash flow hedge liability in other liabilities on the balance sheet at December 31, 2014 and 2013, respectively. There was no ineffectiveness in the cash flow hedge during the years ended December 31, 2014 and 2013.
	Credit risk related to the derivative arises when amounts receivable from the counterparty (derivative dealer) exceed those payable. The Company controls the risk of loss by only transacting with derivative dealers that are national market makers whose credit ratings are strong. Each party to the interest rate swap is required to provide collateral in the form of cash or securities to the counterparty when the counterparty's exposure to a mark-to-market replacement value exceeds certain negotiated limits. These limits are typically based on current credit ratings and vary with ratings changes. As of December 31, 2014 and 2013, respectively, the Company was provided $1.1 million and $950,000 of collateral, which is included in cash and cash equivalents on the balance sheet as interest-bearing deposits with banks. Also, the Company has a netting agreement with the counterparty.
	Non-designated Hedges of Interest Rate Risk
	Customer Swap
	As of December 31, 2014, the Company has two interest rate swap contracts that were classified as non-designated hedges that were acquired through the merger transaction with Savannah. These derivatives are not designated as hedges and are not speculative in nature. One of the derivatives is an interest rate swap that was executed with a commercial borrower to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. This interest rate swap was simultaneously hedged by executing an offsetting interest rate swap that was entered into with a third party to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest.
	The interest rate swap contract with the commercial borrower requires the borrower to pay or receive from the Company an amount equal to and offsetting the value of the interest rate swap. If the commercial borrower fails to perform and the market value for the interest rate swap with the third party is negative (net liability position), the Company would be obligated to pay the settlement amount for the financial derivative. If the market value for the interest rate swap with the third party is positive (net asset position), the Company would receive a payment for the settlement amount for the financial derivative. The settlement amount is determined by the fluctuation of interest rates.
	As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer swaps and the offsetting swaps are recognized directly in earnings. As of December 31, 2014, the interest rate swaps had an aggregate notional amount of approximately $4.0 million and the fair value of these two offsetting interest rate swap derivatives are recorded in other assets and in other liabilities for $172,000 on the balance sheet. The net effect of recording the derivatives at fair value through earnings was immaterial to the Company's financial condition and results of operations during 2014.
	The Company also has an agreement with the third party in this derivative relationship that contains a provision where if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. As of December 31, 2014 the fair value of the interest rate swap derivative with the third party was in a net liability position of $172,000, which excludes any adjustment for nonperformance risk, related to these agreements. As of December 31, 2014, the Company was required to provide $355,000 of collateral, which is included in cash and cash equivalents on the balance sheet as interest-bearing deposits with banks. If the Company had breached any of these provisions at December 31, 2014, it would have been required to settle its obligations under the agreements at the termination value, $179,000 at December 31, 2014.
	Mortgage Banking
	The Company also has derivatives contracts that were classified as non-designated hedges. These derivatives contracts are a part of the Company's risk management strategy for its mortgage banking activities. These instruments may include financial forwards, futures contracts, and options written and purchased, which are used to hedge mortgage servicing rights; while when-issued securities and mandatory cash forward trades are typically used to hedge the mortgage pipeline. Such instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate. The Company does not elect hedge accounting treatment for any of these derivative instruments acquired through the merger with FFHI and as a result, changes in fair value of the instruments (both gains and losses) are recorded in the Consolidated Statements of Income in mortgage banking income.
	Mortgage Servicing Rights
	Derivatives contracts related to mortgage servicing rights are used to help offset changes in fair value and are written in amounts referred to as notional amounts. Notional amounts provide a basis for calculating payments between counterparties but do not represent amounts to be exchanged between the parties, and are not a measure of financial risk. On December 31, 2014, the Company had derivative financial instruments outstanding with notional amounts totaling $102.0 million related to mortgage servicing rights. The estimated net fair value of the open contracts related to the mortgage servicing rights was recorded as a gain of $640,000 at December 31, 2014.
	The following table presents the Company's notional value of forward sale commitments and the fair value of those obligations along with the fair value of the mortgage pipeline.
		December 31,
	(Dollars in thousands)	2014		2013
	Mortgage loan pipeline	$	67,201	$	44,678
	Expected closures		50,760		33,508
	Fair Value of mortgage loan pipeline commitments		1,454		112
	Forward commitments		57,463		36,230
	Fair value of forward commitments		1,051		296

Loan_Servicing_Mortgage_Origin

Loan Servicing, Mortgage Origination, and Loans Held for Sale	12 Months Ended
	Dec. 31, 2014
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Loan Servicing, Mortgage Origination, and Loans Held for Sale	Note 29—Loan Servicing, Mortgage Origination, and Loans Held for Sale
	The portfolio of residential mortgages serviced for others, which are not included in the accompanying balance sheets, was $2.3 billion and $2.1 billion at December 31, 2014 and 2013, respectively. Servicing loans for others generally consists of collecting mortgage payments, maintaining escrow accounts and disbursing payments to investors. The amount of contractually specified servicing fees earned by the Company during the year ended December 31, 2014 and 2013 was $5.4 million and $2.3 million, respectively. Servicing fees are recorded in mortgage banking income in the Company's consolidated statements of income.
	At December 31, 2014 and 2013, MSRs were $21.6 million and $20.7 million, respectively, on the Company's consolidated balance sheet. MSRs are recorded at fair value with changes in fair value recorded as a component of mortgage banking income in the Consolidated Statements of Operations. The market value adjustments related to MSRs recorded in mortgage banking income for the years ended December 31, 2014 and 2013 were a loss of $1.6 million and a gain of $1.1 million respectively. Since the merger with FFHI, the Company has used various free standing derivative instruments to mitigate the income statement effect of changes in fair value due to changes in market value adjustments and to changes in valuation inputs and assumptions related to MSRs.
	The following table presents the changes in the fair value of MSRs and its offsetting hedge.
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Increase/(Decrease) in fair value of MSRs	$	(1,618	)	$	1,058
	Decay of MSRs		(2,381	)		(886	)
	Gains/(Losses) related to derivatives		3,872			(681	)
	Net effect on Statements of Income	$	(127	)	$	(509	)
	The following table is an analysis of the activity in the MSRs.
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Balance at beginning of the period	$	20,729		$	—
	Additions:
	MSRs acquired in the merger with FFHI		—			19,156
	Servicing assets that resulted from transfers of financial assets		4,871			1,401
	Increase (decrease) in fair value due to change in valuation inputs or assumptions		(1,618	)		1,058
	Decay in fair value:
	Due to increases in principal paydowns or runoff		(2,381	)		(886	)
	Balance at end of period	$	21,601		$	20,729
	The fair value of MSRs is highly sensitive to changes in assumptions and fair value is determined by estimating the present value of the asset's future cash flows utilizing market-based prepayment rates, discount rates and other assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Changes in prepayment speed assumptions have the most significant impact on the fair value of MSRs. Generally, as interest rates decline, mortgage loan prepayments accelerate due to increased refinance activity, which results in a decrease in the fair value of the MSR. Measurement of fair value is limited to the conditions existing and the assumptions utilized as of a particular point in time, and those assumptions may not be appropriate if they are applied at a different time.
	The characteristics and sensitivity analysis of the MSR are included in the following table.
		December 31,
	(Dollars in thousands)	2014			2013
	Composition of residential loans serviced for others
	Fixed-rate mortgage loans		99.2	%		99	%
	Adjustable-rate mortgage loans		0.8	%		1	%
	Total		100	%		100	%
	Weighted average life		6.30 years			6.91 years
	Constant Prepayment rate (CPR)		11.4	%		10.2	%
	Weighted average discount rate		9.7	%		10.1	%
	Effect on fair value due to change in interest rates
	25 basis point increase	$	1,365		$	1,059
	50 basis point increase		2,555			1,964
	25 basis point decrease		(1,562	)		(1,248	)
	50 basis point decrease		(3,221	)		(2,255	)
	The sensitivity calculations above are hypothetical and should not be considered to be predictive of future performance. Changes in fair value based on adverse changes in assumptions generally cannot be extrapolated because the relationship of the changes in assumptions to fair value may not be linear. Also, in this table, the effects of an adverse variation in a particular assumption on the fair value of the MSRs is calculated without changing any other assumptions, while in reality, changes in one factor may result in changing another, which may magnify or contract the effect of the change.
	Custodial escrow balances maintained in connection with the loan servicing were $10.1 million and $10.0 million at December 31, 2014 and 2013.
	Mandatory cash forwards and whole loan sales were $596.0 million and $782.5 million for the years ended December 31, 2014 and 2013, of which $462.0 million and $146.5 million or 77.5% and 18.7% were sold with the servicing rights retained by the Company.
	Loans held for sale have historically been comprised of residential mortgage loans awaiting sale in the secondary market, which generally settle in 15 to 45 days. Loans held for sale, which consists of residential mortgage loans to be sold in the secondary market, was $60.3 million at December 31, 2014, compared with $30.6 million at December 31, 2013.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events
Subsequent Events	Note 30—Subsequent Events
	On January 7, 2015, the Company redeemed $46.4 million of Fixed Rate Junior Subordinated Deferrable Interest Debt Securities ("Trust Preferred Securities") due 2034. These Trust Preferred Securities had a fixed rate of interest payable each quarter at 7% per annum and were originally issued on March 24, 2004, by FFHI. The Company acquired FFHI on July 26, 2013 and assumed these Trust Preferred Securities. The Company owned the equity portion of these securities which totaled $1.4 million (of the $46.4 million issuance). The Company incurred approximately $2.2 million in net interest expense, net of tax, in 2014.
	During February 2015, the Company auctioned 75 properties with a carrying value of approximately $4.0 million in other real estate owned. All of these assets had been in this category for at least one year and included both covered and uncovered OREO. These properties are now under contract and expected to close the majority of these by March 31, 2015. The expected loss on the disposition of these assets, net of any loss share agreement of certain covered assets is approximately $600,000.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies
Basis of Consolidation	Basis of Consolidation
	The consolidated financial statements include the accounts of the Company and other entities in which it has a controlling financial interest. All significant intercompany balances and transactions have been eliminated in consolidation. Assets held by the Company in trust are not assets of the Company and are not included in the accompanying consolidated financial statements.
Segments	Segments
	The Company, through its subsidiary, provides a broad range of financial services to individuals and companies in South Carolina, North Carolina and Georgia. These services include demand, time and savings deposits; lending and credit card servicing; ATM processing; and wealth management and trust services. While the Company's decision makers monitor the revenue streams of the various financial products and services, operations are managed and financial performance is evaluated on an organization-wide basis. Accordingly, the Company's banking and finance operations are not considered by management to constitute more than one reportable operating segment.
Use of Estimates	Use of Estimates
	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the consolidated balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, fair value of financial instruments, fair values of assets and liabilities acquired in business combinations, loss estimates related to loans and other real estate acquired which are covered under loss share agreements with the FDIC, evaluating other-than-temporary-impairment of investment securities, goodwill impairment tests and valuation of deferred tax assets.
	With the FDIC loss share agreements, the Company must comply with certain administration requirements of the covered assets and indemnification is limited for the assets covered. Actions by the Company can result in assets becoming uncovered under the loss share provisions, and interpretation of the provisions of the loss share agreement may be different in a way which results in losses increasing and impacting the Company adversely.
	In connection with the determination of the allowance for loan losses, management has identified specific loans as well as adopted a policy of providing amounts for loan valuation purposes which are not identified with any specific loan but are derived from actual loss experience ratios, loan types, loan volume, economic conditions and industry standards. Management believes that the allowance for loan losses is adequate. While management uses available information to recognize losses on loans, future additions to the allowance may be necessary based on changes in economic conditions. In addition, regulatory agencies, as an integral part of the examination process, periodically review the banking subsidiary's allowance for loan losses. Such agencies may require additions to the allowance based on their judgments about information available to them at the time of their examination.
Concentrations of Credit Risk	Concentrations of Credit Risk
	The Company's subsidiary grants agribusiness, commercial, and residential loans to customers throughout South Carolina, North Carolina and Georgia. Although the subsidiary has a diversified loan portfolio, a substantial portion of their borrowers' abilities to honor their contracts is dependent upon economic conditions within South Carolina, North Carolina, Georgia and the surrounding regions.
	The Company considers concentrations of credit to exist when, pursuant to regulatory guidelines, the amounts loaned to a multiple number of borrowers engaged in similar business activities which would cause them to be similarly impacted by general economic conditions represents 25% of total risk-based capital, or $188.9 million at December 31, 2014. Based on this criteria, the Company had four such credit concentrations for non-acquired and acquired non-credit impaired loans at December 31, 2014, including $301.4 million of loans to lessors of residential buildings, $395.1 million of loans to lessors of nonresidential buildings (except mini-warehouses), $211.0 million of loans to religious organizations, and $249.4 million of loans to offices of physicians, dentists, and other health practitioners.
Cash and Cash Equivalents	Cash and Cash Equivalents
	For the purpose of presentation in the consolidated statements of cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest bearing deposits with banks, purchases of securities under agreements to resell, and federal funds sold. Due from bank balances are maintained in other financial institutions. Federal funds sold are generally purchased and sold for one-day periods, but may, from time to time, have longer terms.
	The Company enters into purchases of securities under agreements to resell substantially identical securities typically for the purpose of obtaining securities on a short-term basis for collateralizing certain customer deposit relationships. Securities purchased under agreements to resell at December 31, 2014 and 2013 consisted of U.S. government-sponsored entities and agency mortgage-backed securities. It is the Company's policy to take possession of securities purchased under agreements to resell. The securities are delivered into the Company's account maintained by a third-party custodian designated by the Company under a written custodial agreement that explicitly recognizes the Company's interest in the securities. The Company monitors the market value of the underlying securities, including accrued interest, which collateralizes the related receivable on agreements to resell. At December 31, 2014, these agreements were considered to be cash equivalents with maturities of three months or less.
Investment Securities	Investment Securities
	Debt securities that management has the positive intent and ability to hold to maturity are classified as "held to maturity" and carried at amortized cost. Securities not classified as held to maturity, including equity securities with readily determinable fair values, are classified as "available for sale" and carried at fair value with unrealized gains and losses excluded from earnings and reported in other comprehensive income.
	Purchase premiums and discounts are recognized in interest income using methods approximating the interest method over the terms of the securities. Declines in the fair value of held-to-maturity and available-for-sale securities below their cost that are deemed to be other than temporary are reflected in earnings as realized losses. Gains and losses realized on sales of securities available for sale are determined using the specific identification method. The Company evaluates securities for other-than-temporary impairment ("OTTI") at least on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation. In estimating OTTI losses, management considers: (1) the financial condition and near-term prospects of the issuer, (2) the outlook for receiving the contractual cash flows of the investments, (3) the length of time and the extent to which the fair value has been less than cost, (4) the intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value or for a debt security whether it is more-likely-than-not that the Company will be required to sell the debt security prior to recovering its fair value, and (5) the anticipated outlook for changes in the general level of interest rates. (see Note 3—Investment Securities).
	Other investments include stock acquired for regulatory purposes and investments in unconsolidated subsidiaries. Stock acquired for regulatory purposes include Federal Home Loan Bank of Atlanta ("FHLB") stock. These securities do not have a readily determinable fair value because their ownership is restricted and they lack a market for trading. As a result, these securities are carried at cost and are periodically evaluated for impairment. Investments in unconsolidated subsidiaries represent a minority investment in SCBT Capital Trust I, SCBT Capital Trust II, SCBT Capital Trust III, TSB Statutory Trust I, SAVB Capital Trust I, SAVB Capital Trust II, and FFCH Capital Trust. These investments are recorded at cost and the Company receives quarterly dividend payments on these investments.
Loans Held for Sale	Loans Held for Sale
	Loans originated and intended for sale are carried at the lower of cost or estimated fair value in the aggregate. Estimated fair value is determined on the basis of existing forward commitments, or the current market value of similar loans. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held-for-sale are sold to investors either under guaranteed delivery or with the best effort intent and ability to sell loans as long as they meet the underwriting standards of the potential investor.
Loans	Loans
	Loans that management has originated and has the intent and ability to hold for the foreseeable future or until maturity or pay-off generally are reported at their unpaid principal balances, less unearned income and net of any deferred loan fees and costs. Unearned income on installment loans is recognized as income over the terms of the loans by methods that generally approximate the interest method. Interest on other loans is calculated by using the simple interest method on daily balances of the principal amount outstanding.
	Loans are placed on nonaccrual status depending upon the type of loan, the past due status, and the collection activities in progress. Well-secured loans, in the process of collection, are allowed to remain on an accrual basis until they become 120 days past due. Partially secured loans are written down to the collateral value and placed on nonaccrual status on or before becoming 120 days past due. Unsecured commercial loans are charged off on or before the date they become 120 days past due. Closed end consumer loans and open end consumer loans are charged off or written down to the fair value of collateral on or before becoming 120 and 180 days past due, respectively. When a loan is placed on nonaccrual status, previously accrued and uncollected interest is charged against interest revenue on loans. Interest payments are applied to the principal balance on nonaccrual loans.
	A loan is considered impaired when, in management's judgment, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal and interest when due according to the contractual terms of the loan agreement. Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Management determines when loans become impaired through its normal loan administration and review functions. Loans identified as nonaccrual are potentially impaired loans. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired, provided that management expects to collect all amounts due, including interest accrued at the contractual interest rate for the period of delay. Impairment is measured on a loan by loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's obtainable market price, or the fair value of the collateral if the loan is collateral dependent. Interest income recognition on non-acquired impaired loans is discontinued when the loans meet the criteria for nonaccrual status described above. Large groups of smaller balance homogeneous non-acquired loans are collectively evaluated for loss and a general reserve is established accordingly.
	Acquired credit impaired loans are initially recorded at a discount to recognize the difference in the fair value of the loans and the contractual balance. The discount includes a component to recognize the absolute difference between the contractual value and the amount expected to be collected (total cash flow) as well as a component to recognize the net present value of that future amount to be collected. The net present value component is accretable into income, and therefore generates a yield on all acquired credit impaired loans, regardless of past due status. Therefore, acquired credit impaired loans are considered to be accruing loans. Acquired credit impaired loans that are greater than 90 days past due are placed into the greater than 90 days past due and still accruing category when analyzing the aging status of the loan portfolio. See Note 4—Loans and Allowance for Loan Losses for further detail.
Troubled Debt Restructurings ("TDRs")	Troubled Debt Restructurings ("TDRs")
	The Bank designates loan modifications as TDRs when, for economic or legal reasons related to the borrower's financial difficulties, it grants a concession to the borrower that it would not otherwise consider. Loans on nonaccrual status at the date of modification are initially classified as nonaccrual TDRs. Loans on accruing status at the date of modification are initially classified as accruing TDRs at the date of modification, if the note is reasonably assured of repayment and performance is in accordance with its modified terms. Such loans may be designated as nonaccrual loans subsequent to the modification date if reasonable doubt exists as to the collection of interest or principal under the restructuring agreement. Nonaccrual TDRs are returned to accruing status when there is economic substance to the restructuring, there is well documented credit evaluation of the borrower's financial condition, the remaining balance is reasonably assured of repayment in accordance with its modified terms, and the borrower has demonstrated sustained repayment performance in accordance with the modified terms for a reasonable period of time (generally a minimum of six months).
Allowance for Loan Losses	Allowance for Loan Losses
	The allowance for loan losses is established for estimated loan losses through a provision for loan losses charged to earnings. Loan losses are charged against the allowance when management believes that the collectability of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance.
	The allowance for loan losses is evaluated on a regular basis by management and is based upon management's periodic review of the collectability of the loans in light of historical experience, the nature and volume of the loan portfolio, adverse situations that may affect the borrower's ability to repay, estimated value of any underlying collateral, and prevailing economic conditions. This evaluation is inherently subjective, as it requires estimates that are susceptible to significant revision as more information becomes available.
	The allowance consists of general and specific reserves. The general reserves are determined, for loans not identified as impaired, by applying loss percentages to the portfolio that are based on historical loss experience and management's evaluation and "risk grading" of the loan portfolio. Additionally, the general economic and business conditions affecting key lending areas, credit quality trends, collateral values, loan volumes and concentrations, seasoning of the loan portfolio, the findings of internal and external credit reviews and results from external bank regulatory examinations are included in this evaluation. The specific reserves are determined, for impaired loans, on a loan-by-loan basis based on management's evaluation of the Company's exposure for each credit, given the current payment status of the loan and the value of any underlying collateral. Management evaluates nonaccrual loans and TDRs regardless of accrual status to determine whether or not they are impaired. For such loans that are classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. The Company requires updated appraisals on at least an annual basis for impaired loans that are collateral dependent. Generally, the need for specific reserve is evaluated on impaired loans, and once a specific reserve is established for a loan, a charge off of that amount occurs in the quarter subsequent to the establishment of the specific reserve.
	Although management uses available information to estimate losses on loans, because of uncertainties associated with local, regional, and national economic conditions, collateral values, and future cash flows on impaired loans, and subjection of the model to the review of regulatory authorities, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated.
Other Real Estate Owned	Other Real Estate Owned
	Other real estate owned ("OREO"), consisting of properties obtained through foreclosure or through a deed in lieu of foreclosure in satisfaction of loans and property originally acquired for further branch expansion (formerly classified as premises and equipment), is reported at the lower of cost or fair value, determined on the basis of current valuations obtained principally from independent sources, adjusted for estimated selling costs. At the time of foreclosure or initial possession of collateral, any excess of the loan balance over the fair value of the real estate held as collateral is treated as a charge against the allowance for loan losses.
	Subsequent declines in the fair value of OREO below the new cost basis are recorded through valuation adjustments. Significant judgments and complex estimates are required in estimating the fair value of other real estate, and the period of time within which such estimates can be considered current is significantly shortened during periods of market volatility. In response to market conditions and other economic factors, management may utilize liquidation sales as part of its problem asset disposition strategy. As a result of the significant judgments required in estimating fair value and the variables involved in different methods of disposition, the net proceeds realized from sales transactions could differ significantly from the valuations used to determine the fair value of OREO. Management reviews the value of OREO each quarter and adjusts the values as appropriate. Revenue and expenses from OREO operations as well as gains or losses on sales and any subsequent adjustments to the value are recorded as OREO expense and loan related expense, a component of non-interest expense.
Business Combinations and Method of Accounting for Loans Acquired	Business Combinations and Method of Accounting for Loans Acquired
	The Company accounts for its acquisitions under Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") Topic 805, Business Combinations, which requires the use of the acquisition method of accounting. All identifiable assets acquired, including loans, are recorded at fair value. No allowance for loan losses related to the acquired loans is recorded on the acquisition date because the fair value of the loans acquired incorporates assumptions regarding credit risk. Loans acquired are recorded at fair value in accordance with the fair value methodology prescribed in FASB ASC Topic 820, Fair Value Measurements and Disclosures, exclusive of the loss share agreements with the Federal Deposit Insurance Corporation (the "FDIC"). The fair value estimates associated with the loans include estimates related to expected prepayments and the amount and timing of expected principal, interest and other cash flows.
	Acquired credit-impaired loans are accounted for under the accounting guidance for loans and debt securities acquired with deteriorated credit quality, found in FASB ASC Topic 310-30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality, formerly American Institute of Certified Public Accountants ("AICPA") Statement of Position (SOP) 03-3, Accounting for Certain Loans or Debt Securities Acquired in a Transfer, and initially measured at fair value, which includes estimated future credit losses expected to be incurred over the life of the loans. Loans acquired in business combinations with evidence of credit deterioration since origination and for which it is probable that all contractually required payments will not be collected are considered to be credit impaired. Evidence of credit quality deterioration as of purchase dates may include information such as past-due and nonaccrual status, borrower credit scores and recent loan to value percentages. The Company considers expected prepayments and estimates the amount and timing of expected principal, interest and other cash flows for each loan or pool of loans meeting the criteria above, and determines the excess of the loan's scheduled contractual principal and contractual interest payments over all cash flows expected to be collected at acquisition as an amount that should not be accreted (nonaccretable difference). The remaining amount, representing the excess of the loan's or pool's cash flows expected to be collected over the fair value for the loan or pool of loans, is accreted into interest income over the remaining life of the loan or pool (accretable difference). In accordance with FASB ASC Topic 310-30, the Company aggregated acquired loans that have common risk characteristics into pools within the following loan categories: commercial loans greater than or equal to $1 million—CBT, commercial real estate, commercial real estate—construction and development, residential real estate, residential real estate junior lien, home equity, consumer, commercial and industrial, and single pay. Single pay loans consist of those instruments for which repayment of principal and interest is expected at maturity. Commercial loans greater than or equal to $1 million-CBT consist of commercial loans acquired through the Community Bank and Trust ("CBT") FDIC-assisted transaction that had outstanding contractual principal balances of $1.0 million or more at the date of acquisition.
	Loans acquired through business combinations that do not meet the specific criteria of FASB ASC Topic 310-30, but for which a discount is attributable at least in part to credit quality are generally accounted for under this guidance. As a result, related discounts are recognized subsequently through accretion based on the expected cash flow of the acquired loans. Certain acquired loans, such as lines of credit (consumer and commercial) and loans for which there was no discount attributable to credit are accounted for in accordance with FASB ASC Topic 310-20, where the discount is accreted through earnings based on estimated cash flows over the estimated life of the loan.
	Subsequent to the acquisition date, increases in cash flows expected to be received in excess of the Company's initial estimates are reclassified from nonaccretable difference to accretable difference and are accreted into interest income on a level-yield basis over the remaining life of the loan. Decreases in cash flows expected to be collected are recognized as impairment through the provision for loan losses. For acquired loans subject to a loss sharing agreement with the FDIC, the FDIC indemnification asset will be adjusted prospectively in a similar, consistent manner with increases and decreases in expected cash flows.
	Probable and significant increases in cash flows (in a loan pool where an allowance for acquired loan losses was previously recorded) reduces the remaining allowance for acquired loan losses before recalculating the amount of accretable yield percentage for the loan pool in accordance with ASC 310-30. For covered loan pools, the reduction of the remaining allowance for acquired loan losses would be offset by the impact to the indemnification asset depending on each covered portfolio's loss share coverage (80%, in the case of Habersham Bank ("Habersham") and BankMeridian, N.A. ("BankMeridian"); 95% in the case of CBT; 80% up to $110.0 million and 95% thereafter, in the case of Cape Fear Bank ("Cape Fear"); or 80% up to $55.0 million, 0% from $55.0 million to $65.0 million, and 60% thereafter, in the case of Plantation Federal Bank ("Plantation")).
FDIC Indemnification Asset	FDIC Indemnification Asset
	The FDIC indemnification asset is measured separately from the related covered asset as it is not contractually embedded in the assets and is not transferable with the assets should the Company choose to dispose of them. Fair value was estimated at the acquisition date using projected cash flows related to the loss sharing agreements based on the expected reimbursements for losses and the applicable loss sharing percentages. These expected reimbursements do not include reimbursable amounts related to future covered expenditures. These cash flows were discounted to reflect the uncertainty of the timing and receipt of the loss sharing reimbursement from the FDIC. The Company will offset any recorded provision for loan losses related to acquired-covered loans by recording an increase in the FDIC indemnification asset by the increase in expected cash flow, which is the result of a decrease in expected cash flow of acquired loans. An increase in cash flows on acquired loans results in a decrease in cash flows on the FDIC indemnification asset, which is recognized in the future as negative accretion through non-interest income over the shorter of the remaining life of the FDIC indemnification asset or the underlying loans.
	The Company incurs expenses related to the assets indemnified by the FDIC, and pursuant to the loss share agreement certain costs are reimbursable by the FDIC. These costs are included in monthly and quarterly claims made by the Company. The estimates of reimbursements are netted against these covered expenses in the income statement.
Premises and Equipment	Premises and Equipment
	Land is carried at cost. Office equipment, furnishings, and buildings are carried at cost less accumulated depreciation computed principally on the declining-balance and straight-line methods over the estimated useful lives of the assets. Leasehold improvements are amortized on the straight-line method over the shorter of the estimated useful lives of the improvements or the terms of the related leases including lease renewals only when the Company is reasonably assured of the aggregate term of the lease. Additions to premises and equipment and major replacements are added to the accounts at cost. Maintenance and repairs and minor replacements are charged to expense when incurred. Gains and losses on routine dispositions are reflected in current operations.
Intangible Assets	Intangible Assets
	Intangible assets consist of goodwill, core deposit intangibles, client list intangibles, and noncompetition agreement ("noncompete") intangibles that result from the acquisition of other banks or branches from other financial institutions. Core deposit intangibles represent the value of long-term deposit relationships acquired in these transactions. Client list intangibles represent the value of long-term client relationships for the wealth and trust management business. Noncompete intangibles represent the value of key personnel relative to various competitive factors such as ability to compete, willingness or likelihood to compete, and feasibility based upon the competitive environment, and what the Bank could lose from competition. Goodwill represents the excess of the purchase price over the sum of the estimated fair values of the tangible and identifiable intangible assets acquired less the estimated fair value of the liabilities assumed. Goodwill has an indefinite useful life and is evaluated for impairment annually or more frequently if events and circumstances indicate that the asset might be impaired. An impairment loss is recognized to the extent that the carrying amount exceeds the asset's fair value. The goodwill impairment analysis is a two-step test. The first step, used to identify potential impairment, involves comparing the reporting unit's estimated fair value to its carrying value, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying value, goodwill assigned to that reporting unit is considered not to be impaired. If the carrying value exceeds estimated fair value, there is an indication of potential impairment and the second step is performed to measure the amount of impairment of goodwill assigned to that reporting unit.
	If required, the second step involves calculating an implied fair value of goodwill for each reporting unit for which the first step indicated impairment. The implied fair value of goodwill is determined in a manner similar to the amount of goodwill calculated in a business combination, by measuring the excess of the estimated fair value of the reporting unit, as determined in the first step, over the aggregate estimated fair values of the individual assets, liabilities and identifiable intangibles as if the reporting unit was being acquired in a business combination. If the implied fair value of goodwill exceeds the carrying value of goodwill assigned to the reporting unit, there is no impairment. If the carrying value of goodwill assigned to a reporting unit exceeds the implied fair value of the goodwill, an impairment charge is recorded for the excess. An impairment loss cannot exceed the carrying value of goodwill assigned to a reporting unit, and the loss establishes a new basis in the goodwill. Subsequent reversal of goodwill impairment losses is not permitted. Management has determined that the Company has one reporting unit.
	The Company evaluated the carrying value of goodwill as of April 30, 2014, its annual test date, and determined that no impairment charge was necessary. Additionally, should the Company's future earnings and cash flows decline and/or discount rates increase, an impairment charge to goodwill and other intangible assets may be required. There have been no events subsequent to the April 30, 2014 evaluation that caused the Company to perform an interim review of the carrying value of goodwill.
	Core deposit intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the deposit accounts acquired (generally 7 to 13 years) on either (1) the straight-line method or (2) an accelerated basis method which reasonably approximates the anticipated benefit stream from the accounts. The estimated useful lives are periodically reviewed for reasonableness.
	Noncompete intangibles, included in core deposit and other intangibles are amortized over the life of the underlying noncompete agreements (generally 2 to 3 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness.
	Client list intangibles, included in core deposit and other intangibles, are amortized over the estimated useful lives of the client lists acquired (generally 15 years) on the straight-line method. The estimated useful lives are periodically reviewed for reasonableness.
Mortgage Servicing Rights	Mortgage Servicing Rights
	The Company has a mortgage loan servicing portfolio with related mortgage servicing rights. Mortgage servicing rights ("MSRs") represent the present value of the future net servicing fees from servicing mortgage loans. Servicing assets and servicing liabilities must be initially measured at fair value, if practicable. For subsequent measurements, an entity can choose to measure servicing assets and liabilities either based on fair value or lower of cost or market. The Company uses the fair value measurement option for MSRs.
	The methodology used to determine the fair value of MSRs is subjective and requires the development of a number of assumptions, including anticipated prepayments of loan principal. Fair value is determined by estimating the present value of the asset's future cash flows utilizing estimated market-based prepayment rates and discount rates, interest rates and other economic factors and assumptions validated through comparison to trade information, industry surveys and with the use of independent third party appraisals. Risks inherent in the MSRs valuation include higher than expected prepayment rates and/or delayed receipt of cash flows. The value of MSRs is significantly affected by mortgage interest rates available in the marketplace, which influence mortgage loan prepayment speeds. In general, during periods of declining interest rates, the value of mortgage servicing rights declines due to increasing prepayments attributable to increased mortgage refinance activity. Conversely, during periods of rising interest rates, the value of servicing rights generally increases due to reduced refinance activity. MSRs are carried at fair value with changes in fair value recorded as a component of mortgage banking income each period in the Consolidated Statement of Income. The Company also uses derivative instruments to mitigate the income statement effect of changes in fair value due to changes in valuation inputs and assumptions of its MSRs.
Transfer of Financial Assets	Transfer of Financial Assets
	With the FFHI merger in July of 2013, the Company acquired a portfolio of residential mortgages serviced for others and began to sell mortgages directly to Fannie Mae. Prior to this merger, all of the Company's loan sales were to third party investors on the secondary market with servicing rights released. Transfers of financial assets are accounted for as sales when control over the assets has been surrendered. Control over the transferred assets is deemed to be surrendered when: (1) the assets have been isolated from the Company, (2) 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 (3) the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. The Company reviews all sales of loans by evaluating specific terms in the sales documents and believes that the criteria discussed above to qualify for sales treatment have been met as loans have been transferred for cash and the notes and mortgages for all loans in each sale are endorsed and assigned to the transferee. As stated in the commitment document, the Buyer has no recourse with these loans except in the case of fraud. In certain sales, mortgage servicing rights may be retained and in other programs potential loss exposure from the credit enhancement obligation may be retained, both of which are evaluated and appropriately measured at the date of sale.
	The Company packages most of the 30 year fixed rate conforming mortgage loans as securities to investors issued through Fannie Mae and sold to third-party investors or sells them as cash forward mandatory commitments to Fannie Mae. The Company records loan securitizations or cash forwards as a sale when the transferred loans are legally isolated from its creditors and the accounting criteria for a sale are met. Gains or losses recorded on loan securitizations and cash forwards depend in part on the net carrying amount of the loans sold, which is allocated between the loans sold and retained interests based on their relative fair values at the date of sale. The Company generally retains mortgage servicing rights on residential mortgage loans sold in the secondary market. Loans transferred to held for sale with the intention of disposal through a bulk loan sale will be sold with servicing released. Since quoted market prices are not typically available, the fair value of retained interests is estimated through the services of a third-party service provider to determine the net present value of expected future cash flows. Such models incorporate management's best estimates of key variables, such as prepayment speeds and discount rates that would be used by market participants and are appropriate for the risks involved. Gains and losses incurred on loans sold to third-party investors are included in mortgage banking income in the Consolidated Statements of Operations.
Advertising Costs	Advertising Costs
	The Company expenses advertising costs as they are incurred and advertising communication costs the first time the advertising takes place. The Company may establish accruals for anticipated advertising expenses within the course of a fiscal year.
Comprehensive Income	Comprehensive Income
	Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Certain changes in assets and liabilities, such as (1) unrealized gains and losses on available-for-sale securities (2) unrealized gains and losses on effective portions of derivative financial instruments accounted for as cash flow hedges and (3) net change in unrecognized amounts related to pension and post-retirement benefits, are reported as a separate component of the equity section of the balance sheet. Such items, along with net income, are components of total comprehensive income (see Consolidated Statements of Comprehensive Income on page F-7).
Employee Benefit Plans	Employee Benefit Plans
	The Company's defined benefit pension and other post retirement plans are accounted for in accordance with FASB ASC 715, Compensation—Retirement Benefits, which requires the Company to recognize the funded status in its statement of financial position. See Note 17 for information regarding the defined benefit pension plan and Note 18 for information regarding our post-retirement benefits plan. The expected costs of the plans are being expensed over the period that employees provide service.
	The Employee Stock Purchase Plan ("ESPP") allows for a look-back option which establishes the purchase price as an amount based on the lesser of the stock's market price at the grant date or its market price at the exercise (or purchase) date. For the shares issued in exchange for employee services under the plan, the Company accounts for the plan under the FASB ASC 718, Compensation—Stock Compensation, in which the fair value measurement method is used to estimate the fair value of the equity instruments, based on the share price and other measurement assumptions at the grant date. See Note 19 for the amount the Company recognized as expense for the years ended December 31, 2014, 2013 and 2012.
Income Taxes	Income Taxes
	Income taxes are provided for the tax effects of the transactions reported in the accompanying consolidated financial statements and consist of taxes currently due plus deferred taxes related primarily to differences between the tax basis and financial statement basis of gains on acquisitions, available-for-sale securities, allowance for loan losses, write downs of OREO properties, accumulated depreciation, net operating loss carryforwards, accretion income, deferred compensation, intangible assets, and pension plan and post-retirement benefits. The deferred tax assets and liabilities represent the future tax return consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred tax assets and liabilities are reflected at income tax rates applicable to the period in which the deferred tax assets or liabilities are expected to be realized or settled. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through the provision for income taxes.
	The Company recognizes interest and penalties accrued relative to unrecognized tax benefits in its respective federal or state income taxes accounts. As of December 31, 2014 and 2013, there were no material accruals for uncertain tax positions. The Company and its subsidiary file a consolidated United States federal income tax return, as well as income tax returns for its subsidiary in the state of South Carolina, Georgia, and North Carolina, Florida, Virginia, Alabama, and Mississippi. The Company's filed income tax returns are no longer subject to examination by taxing authorities for years before 2010.
Earnings Per Share	Earnings Per Share
	Basic earnings per share ("EPS") represents income available to common shareholders divided by the weighted-average number of shares outstanding during the year. Diluted earnings per share reflects additional shares that would have been outstanding if dilutive potential shares had been issued. Potential shares that may be issued by the Company relate solely to outstanding stock options, restricted stock (non-vested shares), and warrants, and are determined using the treasury stock method. Under the treasury stock method, the number of incremental shares is determined by assuming the issuance of stock for the outstanding stock options and warrants, reduced by the number of shares assumed to be repurchased from the issuance proceeds, using the average market price for the year of the Company's stock. Weighted-average shares for the basic and diluted EPS calculations have been reduced by the average number of unvested restricted shares.
Derivative Financial Instruments	Derivative Financial Instruments
	The Company's interest rate risk management strategy incorporates the use of a derivative financial instrument, specifically an interest rate swap, to essentially convert a portion of its variable-rate debt to a fixed rate. Cash flows related to variable-rate debt will fluctuate with changes in an underlying rate index. When effectively hedged, the increases or decreases in cash flows related to the variable-rate debt will generally be offset by changes in cash flows of the derivative instrument designated as a hedge. This strategy is referred to as a cash flow hedge.
	In addition, the Company acquired two interest rate swap contracts through the merger transaction with Savannah. These derivatives are not designated as hedges and are not speculative in nature. One of the derivatives is an interest rate swap that was executed with a commercial borrower to facilitate a respective risk management strategy and allow the customer to pay a fixed rate of interest to the Company. This interest rate swap was simultaneously hedged by executing an offsetting interest rate swap that was entered into with a third party to minimize the net risk exposure to the Company resulting from the transactions and allow the Company to receive a variable rate of interest.
	During 2013, the Company acquired derivatives contracts through the merger transaction with FFHI. These instruments are a part of the Company's risk management strategy for its mortgage banking activities. These derivative instruments are used to hedge both the value of the mortgage servicing rights and the mortgage pipeline and are not designated as hedges and are not speculative in nature. The derivative instruments that are used to hedge the value of the mortgage servicing rights include financial forwards, futures contracts, and options written and purchased, while when-issued securities and mandatory cash forward trades are typically used to hedge the mortgage pipeline. These instruments derive their cash flows, and therefore their values, by reference to an underlying instrument, index or referenced interest rate.
	By using derivative instruments, the Company is exposed to credit and market risk. If the counterparty fails to perform, credit risk is equal to the fair value gain in a derivative. When the fair value of a derivative contract is positive, this situation generally indicates that the counterparty is obligated to pay the Company, and, therefore, creates a repayment risk for the Company. When the fair value of a derivative contract is negative, the Company is obligated to pay the counterparty and, therefore, has no repayment risk. The Company minimizes the credit risk in derivative instruments by entering into transactions with high-quality counterparties that are reviewed periodically by the Company.
	The Company's derivative activities are monitored by its Asset-Liability Management Committee as part of that committee's oversight of the Company's asset/liability and treasury functions. The Company's Asset-Liability Management Committee is responsible for implementing various hedging strategies that are developed through its analysis of data from financial simulation models and other internal and industry sources. The resulting hedging strategies are then incorporated into the overall interest-rate risk management process.
	The Company recognizes the fair value of derivatives as assets or liabilities in the financial statements. The accounting for the changes in the fair value of a derivative depends on the intended use of the derivative instrument at inception. The change in fair value of the effective portion of cash flow hedges is accounted for in other comprehensive income rather than net income. Changes in fair value of derivative instruments that are not intended as a hedge are accounted for in the net income in the period of the change (see Note 28—Derivative Financial Instruments for further disclosure).
Reclassification	Reclassification
	Certain amounts previously reported have been reclassified to conform to the current year's presentation. Such reclassifications had no effect on net income and shareholders' equity.
Subsequent Events	Subsequent Events
	The Company has evaluated subsequent events for accounting and disclosure purposes through the date the financial statements are issued (see Note 30—Subsequent Events for further disclosure).
Recent Accounting and Regulatory Pronouncements	Recent Accounting and Regulatory Pronouncements
	In November 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity, a consensus of the FASB Emerging Issues Task Force. This ASU clarifies how current U.S. GAAP should be interpreted in subjectively evaluating the economic characteristics and risks of a host contract in a hybrid financial instrument that is issued in the form of a share. ASU 2014-16 is effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The adoption of ASU 2014-16 is not expected to have a material impact on the Company's financial statements.
	In August 2014, the FASB issued ASU 2014-14, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40)—Classification of Certain Government Guaranteed Mortgage Loans upon Foreclosure ("ASU 2014-14"). ASU 2014-14 provides clarifying guidance related to how creditors classify government-guaranteed loans upon foreclosure. ASU 2014-14 requires that a mortgage loan be derecognized and a separate receivable be recognized upon foreclosure if certain conditions are met. Upon foreclosure, the separate receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. ASU 2014-14 is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2014. The amendments can be applied using either a prospective transition method or a modified retrospective transition method. Early adoption is permitted. The adoption of ASU 2014-14 is not expected to have a material impact on the Company's financial statements.
	In June 2014, the FASB issued ASU 2014-12, Compensation—Stock Compensation (Topic 718): Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period, a consensus of the FASB Emerging Issues Task Force ("ASU 2014-12"). ASU 2014-12 requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. ASU 2014-12 is effective for annual periods and interim periods within those annual periods, beginning after December 15, 2015. An entity may apply the standards (1) prospectively to all share-based payment awards that are granted or modified on or after the effective date, or (2) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. Earlier application is permitted. The adoption of ASU 2014-12 is not expected to have a material impact on the Company's financial statements.
	In June 2014, the FASB issued ASU 2014-11, Transfers and Servicing (Topic 860): Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures ("ASU 2014-11"). ASU 2014-11 aligns the accounting for repurchase to maturity transactions and repurchase agreements executed as a repurchase financing with the accounting for other typical repurchase agreements. Going forward, these transactions would all be accounted for as secured borrowings. ASU 2014-11 is effective for the first interim or annual period beginning after December 15, 2014. In addition the disclosure of certain transactions accounted for as a sale is effective for the first interim or annual period beginning after December 15, 2014, and the disclosure for transactions accounted for as secured borrowings is required for annual periods beginning after December 15, 2014, and interim periods beginning after March 15, 2015. Early adoption is prohibited. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but does not expect it to have a material impact.
	In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers, Topic 606 ("ASU 2014-09"). The new standard's core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, companies will need to use more judgment and make more estimates than under existing guidance. These may include identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation. ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. The amendments can be applied retrospectively to each prior reporting period or retrospectively with the cumulative effect of initially applying this new guidance recognized at the date of initial application. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but the Company does not expect it to have a material impact.
	In January 2014, the FASB issued ASU 2014-04, Receivables—Troubled Debt Restructurings by Creditors (Subtopic 310-40): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure, a consensus of the FASB Emerging Issues Task Force ("ASU 2014-04"). ASU 2014-04 clarifies that an in-substance foreclosure occurs, and a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either (i) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure or (ii) the borrower conveying all interest in the residential real estate property to the creditor to satisfy the loan through completion of a deed in lieu of foreclosure or similar legal agreement. ASU 2014-04 also requires disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in loans collateralized by residential real estate property that are in the process of foreclosure. ASU 2014-04 is effective for public companies for interim and annual periods beginning after December 15, 2014, with early adoption permitted. Once adopted, an entity can elect either (i) a modified retrospective transition method or (ii) a prospective transition method. The modified retrospective transition method is applied by means of a cumulative-effect adjustment to residential mortgage loans and foreclosed residential real estate properties existing as of the beginning of the period for which the amendments of ASU 2014-04 are effective, with real estate reclassified to loans measured at the carrying value of the real estate at the date of adoption and loans reclassified to real estate measured at the lower of net carrying value of the loan or the fair value of the real estate less costs to sell at the date of adoption. The prospective transition method is applied by means of applying the amendments of ASU 2014-04 to all instances of receiving physical possession of residential real estate properties that occur after the date of adoption. The adoption of ASU 2014-04 is not expected to have a material impact on the Company's financial statements.
	In January 2014, the FASB issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects ("ASU 2014-01"). ASU 2014-01 amends FASB ASC 323, Investments—Equity Method and Joint Ventures, to permit reporting entities to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). ASU 2014-01 is effective for annual periods and interim periods within those annual periods beginning after December 15, 2014 and should be applied retrospectively. The Company is currently evaluating the impact of adopting the new guidance on the consolidated financial statements, but the Company does not expect it to have a material impact.

Mergers_and_Acquisitions_Table

Mergers and Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2014
First Financial Holdings, Inc. ("First Financial")
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The following table presents the assets acquired and liabilities assumed as of July 26, 2013, as recorded by FFHI on the acquisition date and initial and subsequent fair value adjustments.
	(Dollars in thousands)	As Recorded by			Initial			Subsequent			As Recorded
		FFHI			Fair Value			Fair Value			by the Company
					Adjustments			Adjustments
	Assets
	Cash and cash equivalents	$	174,082		$	—		$	—		$	174,082
	Investment securities		313,200			(1,388	)(a)		—			311,812
	Loans held for sale		19,858			6	(b)		—			19,864
	Loans		2,355,527			(92,720	)(b)		12,875	(b)		2,275,682
	Premises and equipment		82,399			(5,435	)(c)		(597	)(c)		76,367
	Intangible assets		7,037			33,738	(d)		(2,542	)(d)		38,233
	Mortgage servicing rights		19,156			—			—			19,156
	Other real estate owned		13,271			(2,065	)(e)		1,972	(e)		13,178
	FDIC receivable for loss sharing agreement		47,459			(18,122	)(f),(k)		(7,624	)(f)		21,713
	Bank owned life insurance		51,513			—			(493	)(m)		51,020
	Deferred tax asset		(5,279	)		42,741	(g)		(4,585	)(g)		32,877
	Other assets		47,257			(6,125	)(h)		4,247	(l)		45,379
	Total assets	$	3,125,480		$	(49,370	)	$	3,253		$	3,079,363
	Liabilities
	Deposits:
	Noninterest-bearing	$	430,517		$	—		$	—		$	430,517
	Interest-bearing		2,083,495			7,801	(i)		—			2,091,296
	Total deposits		2,514,012			7,801			—			2,521,813
	Other borrowings		280,187			21,526	(j)		—			301,713
	Other liabilities		25,584			(2,059	)(k)		(245	)(k)		23,280
	Total liabilities		2,819,783			27,268			(245	)		2,846,806
	Net identifiable assets acquired over (under) liabilities assumed		305,697			(76,638	)		3,498			232,557
	Goodwill		—			217,894			(3,498	)		214,396
	Net assets acquired over liabilities assumed	$	305,697		$	141,256		$	—		$	446,953
	Consideration:
	Common shares issued		7,018,274
	Purchase price per share of the Company's common stock	$	54.34
	Company common stock issued and cash exchanged for fractional shares		381,423
	Cash paid for stock options outstanding		530
	Assumption of preferred stock		65,000
	Fair value of total consideration transferred	$	446,953
	Explanation of fair value adjustments
	(a)—Adjustment reflects marking the securities portfolio to fair value as of the acquisition date.
	(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by FFHI.
	(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
	(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for credit cards and customer lists.
	(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
	(f)—Adjustment reflects the fair value adjustments to the FDIC receivable for loss sharing agreements based on the Company's evaluation of the losses on the acquired assets covered under loss share agreements with the FDIC net of any clawback.
	(g)—Adjustment to record deferred tax asset related to fair value adjustments.
	(h)—Adjustment reflects uncollectible portion of accrued interest receivable and loan fees receivable.
	(i)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
	(j)—Adjustment reflects the fair value adjustment which was equal to the prepayment fee paid to fully pay off the Federal Home Loan Bank (the "FHLB") advances on July 26, 2013. This fair value adjustment and the fair value adjustment of the junior subordinated debt were determined based upon interest rates.
	(k)—Adjustment reflects the reclassification of the clawback to net against the FDIC receivable, the incremental accrual for employee related benefits, lease liabilities, and adjustment of other miscellaneous accruals.
	(l)—Adjustment reflects the change in insurance-related receivable and increase in the current income tax receivable for the short-period income tax returns filed.
	(m)—Adjustment reflects the fair value adjustments to bank owned life insurance based on the Company's evaluation of the policies.
Schedule of proforma information
	(Dollars in thousands)	Actual results for			Pro Forma			Pro Forma
		the Year Ended			Year Ended			Year Ended
		Decmeber 31, 2014			December 31, 2013			December 31, 2012
	Total revenues (net interest income plus noninterest income)	$	421,056		$	438,625		$	480,672
	Net operating income available to the common shareholder	$	90,573		$	80,624		$	54,529
Savannah Bancorp ("SAVB")
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The following table presents the assets acquired and liabilities assumed as of December 13, 2012, as recorded by Savannah on the acquisition date and initial and subsequent fair value adjustments.
	(Dollars in thousands)	As Recorded by			Fair Value			Subsequent			As Recorded
		Savannah			Adjustments			Fair Value			by the Company
								Adjustments
	Assets
	Cash and cash equivalents	$	86,244		$	—		$	—		$	86,244
	Investment securities		75,460			(1,288	)(a)		31	(a)		74,203
	Loans		660,555			(59,196	)(b)		—			601,359
	Premises and equipment		12,555			(1,843	)(c)		(260	)(c)		10,452
	Intangible assets		3,357			9,546	(d)		15	(d)		12,918
	Other real estate owned and repossessed assets		13,934			(5,315	)(e)		(1,513	)(e)		7,106
	Bank owned life insurance		6,705			—			—			6,705
	Deferred tax asset		(790	)		39,143	(f)		(202	)(f)		38,151
	Other assets		8,497			(2,348	)(g)		(893	)(k)		5,256
	Total assets	$	866,517		$	(21,301	)	$	(2,822	)	$	842,394
	Liabilities
	Deposits:
	Noninterest-bearing	$	129,902		$	—		$	—		$	129,902
	Interest-bearing		619,198			2,530	(h)		—			621,728
	Total deposits		749,100			2,530			—			751,630
	Federal funds purchased and securities sold under agreements to repurchase		13,491			—			—			13,491
	Other borrowings		30,613			(232	)(i)		—			30,381
	Other liabilities		8,026			6,657	(j)		(311	)(j)		14,372
	Total liabilities		801,230			8,955			(311	)		809,874
	Net identifiable assets acquired over (under) liabilities assumed		65,287			(30,256	)		(2,511	)		32,520
	Goodwill		—			33,886			2,511			36,397
	Net assets acquired over liabilities assumed	$	65,287		$	3,630		$	—		$	68,917
	Consideration:
	Common shares issued		1,802,137
	Purchase price per share of the Company's common stock	$	38.2
	Company common stock issued and cash exchanged for fractional shares		68,854
	Cash paid for stock options outstanding		63
	Fair value of total consideration transferred	$	68,917
	Explanation of fair value adjustments
	(a)—Adjustment reflects marking the available-for-sale portfolio to fair value as of the acquisition date.
	(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by Savannah.
	(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
	(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for non-compete agreements and customer lists.
	(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
	(f)—Adjustment to record deferred tax asset related to purchase accounting adjustments.
	(g)—Adjustment reflects uncollectible portion of accrued interest receivable.
	(h)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
	(i)—Adjustment reflects the prepayment fee paid when FHLB advances were completely paid off in December of 2012 and the fair value adjustment based on the Company's evaluation of the junior subordinated debt.
	(j)—Adjustment reflects the incremental accrual for employee related benefits, asset sale termination fee and other liabilities.
	(k)—Adjustment reflects the adjustment for miscellaneous receivables.
Peoples
Mergers and Acquisitions
Schedule of assets acquired, liabilities assumed, and fair value of total consideration transferred	The following table presents the assets acquired and liabilities assumed as of April 24, 2012, as recorded by Peoples on the acquisition date and initial and subsequent fair value adjustments.
	(Dollars in thousands)	As Recorded by			Initial			Subsequent			As Recorded
		Peoples			Fair Value			Fair Value			by the Company
					Adjustments			Adjustments
	Assets
	Cash and cash equivalents	$	24,459		$	—		$	—		$	24,459
	Investment securities		176,334			(442	)(a)		—			175,892
	Loans		262,858			(28,613	)(b)		—			234,245
	Premises and equipment		10,094			3,240	(c)		(38	)(c)		13,296
	Intangible assets		—			2,930	(d)		—			2,930
	Other real estate owned and repossessed assets		13,257			(5,341	)(e)		188	(e)		8,104
	Deferred tax asset		4,702			11,669	(f)		197	(f)		16,568
	Other assets		17,588			(883	)(g)		—			16,705
	Total assets	$	509,292		$	(17,440	)	$	347		$	492,199
	Liabilities
	Deposits:
	Noninterest-bearing	$	54,884		$	—		$	—		$	54,884
	Interest-bearing		378,781			1,405	(h)		—			380,186
	Total deposits		433,665			1,405			—			435,070
	Other borrowings		9,542			—			—			9,542
	Other liabilities		4,291			2,054	(i)		700	(i)		7,045
	Total liabilities		447,498			3,459			700			451,657
	Net identifiable assets acquired over (under) liabilities assumed		61,794			(20,899	)		(353	)		40,542
	Goodwill		—			3,654			353			4,007
	Net assets acquired over (under) liabilities assumed	$	61,794		$	(17,245	)	$	—		$	44,549
	Consideration:
	Common shares issued		1,002,741
	Purchase price per share of the Company's common stock	$	31.06
	Company common stock issued and cash exchanged for fractional shares		31,160
	Cash paid for stock options outstanding		96
	Cash paid for TARP preferred stock		13,293
	Fair value of total consideration transferred	$	44,549
	Explanation of fair value adjustments
	(a)—Adjustment reflects marking the available-for-sale portfolio to fair value as of the acquisition date.
	(b)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired loan portfolio and excludes the allowance for loan losses recorded by Peoples Bancorporation, Inc.
	(c)—Adjustment reflects the fair value adjustments based on the Company's evaluation of the acquired premises and equipment.
	(d)—Adjustment reflects the recording of the core deposit intangible on the acquired deposit accounts and other intangibles for non-compete agreements.
	(e)—Adjustment reflects the fair value adjustments to OREO based on the Company's evaluation of the acquired OREO portfolio.
	(f)—Adjustment to record deferred tax asset related to purchase accounting adjustments.
	(g)—Adjustment reflects uncollectible portion of accrued interest receivable.
	(h)—Adjustment arises since the rates on interest-bearing deposits are higher than rates available on similar deposits as of the acquisition date.
	(i)—Adjustment reflects the incremental accrual for SERP termination, other employee related benefits, and other liabilities.

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2014
Investment Securities
Schedule of amortized cost and fair value of investment securities held to maturity
	(Dollars in thousands)	Amortized			Gross		Gross			Fair Value
		Cost			Unrealized		Unrealized
					Gains		Losses
	December 31, 2014:
	State and municipal obligations	$	9,659		$	574	$	—		$	10,233
	December 31, 2013:
	State and municipal obligations	$	12,426		$	480	$	(15	)	$	12,891
Schedule of amortized cost and fair value of investment securities available for sale
	(Dollars in thousands)	Amortized			Gross		Gross			Fair Value
		Cost			Unrealized		Unrealized
					Gains		Losses
	December 31, 2014:
	Government-sponsored entities debt*	$	149,720		$	191	$	(1,714	)	$	148,197
	State and municipal obligations		133,635			4,141		(195	)		137,581
	Residential government-sponsored entities mortgage-backed securities		511,414			7,572		(1,040	)		517,946
	Corporate stocks		3,161			573		(692	)		3,042
		$	797,930		$	12,477	$	(3,641	)	$	806,766
	December 31, 2013:
	Government-sponsored entities debt*	$	149,708		$	185	$	(6,899	)	$	142,994
	State and municipal obligations		142,934			1,798		(4,081	)		140,651
	Residential government-sponsored entities mortgage-backed securities		500,000			4,394		(4,915	)		499,479
	Corporate stocks		3,161			638		(132	)		3,667
		$	795,803		$	7,015	$	(16,027	)	$	786,791
	*—The Company's government-sponsored entities holdings are comprised of debt securities offered by Federal Home Loan Mortgage Corporation ("FHLMC") or Freddie Mac, Federal National Mortgage Association ("FNMA") or Fannie Mae, FHLB, and Federal Farm Credit Banks ("FFCB"). Also included in the Company's government-sponsored entities are debt securities offered by the Small Business Administration ("SBA"), which have the full faith and credit backing of the United States Government.
Schedule of amortized cost and fair value of other investment securities
	(Dollars in thousands)	Amortized			Gross		Gross			Fair
		Cost			Unrealized		Unrealized			Value
					Gains		Losses
	December 31, 2014:
	Federal Home Loan Bank stock	$	7,484		$	—	$	—		$	7,484
	Investment in unconsolidated subsidiaries		3,034			—		—			3,034
		$	10,518		$	—	$	—		$	10,518
	December 31, 2013:
	Federal Home Loan Bank stock	$	10,352		$	—	$	—		$	10,352
	Investment in unconsolidated subsidiaries		3,034			—		—			3,034
		$	13,386		$	—	$	—		$	13,386
Schedule of amortized cost and fair value of debt securities by contractual maturity
		Securities					Securities
		Held to Maturity					Available for Sale
	(Dollars in thousands)	Amortized			Fair		Amortized			Fair
		Cost			Value		Cost			Value
	Due in one year or less	$	—		$	—	$	5,635		$	5,681
	Due after one year through five years		986			1,007		45,013			45,186
	Due after five years through ten years		8,673			9,226		221,752			224,690
	Due after ten years		—			—		525,530			531,209
		$	9,659		$	10,233	$	797,930		$	806,766
Summary of information with respect to sales of available-for-sale securities
		Years Ended December 31,
	(Dollars in thousands)	2014			2013		2012
	Securities Held to Maturity:
	Sale proceeds	$	411		$	—	$	—
	Gross realized gains	$	—		$	—	$	—
	Gross realized losses		(90	)		—		—
	Net realized loss	$	(90	)	$	—	$	—
	Securities Available for Sale:
	Sale proceeds	$	9,315		$	177,468	$	29,301
	Gross realized gains	$	115		$	—	$	193
	Gross realized losses		(27	)		—		(4	)
	Net realized gain	$	88		$	—	$	189
Schedule of securities with gross unrealized losses, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position
		Less Than					Twelve Months or More
		Twelve Months
	(Dollars in thousands)	Gross			Fair		Gross			Fair
		Unrealized			Value		Unrealized			Value
		Losses					Losses
	December 31, 2014:
	Securities Held to Maturity
	State and municipal obligations	$	—		$	—	$	—		$	—
		$	—		$	—	$	—		$	—
	Securities Available for Sale
	Government-sponsored entities debt	$	98		$	22,896	$	1,616		$	82,798
	State and municipal obligations		3			1,444		192			8,269
	Mortgage-backed securities		266			61,508		774			55,960
	Corporate stocks		—			—		692			1,538
		$	367		$	85,848	$	3,274		$	148,565
	December 31, 2013:
	Securities Held to Maturity
	State and municipal obligations	$	15		$	486	$	—		$	—
		$	15		$	486	$	—		$	—
	Securities Available for Sale
	Government-sponsored entities debt	$	6,899		$	112,085
	State and municipal obligations		3,901			87,060		180			3,900
	Mortgage-backed securities		4,874			263,383		41			2,125
	Corporate stocks		132			2,099		—			—
		$	15,806		$	464,627	$	221		$	6,025

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2014
Loans and Allowance for Loan Losses
Schedule of changes in allowance for loan losses
	(Dollars in thousands)		Non-acquired			Acquired			Acquired			Total
			Loans			Non-credit			Credit
						Impaired			Impaired
						Loans			Loans
	Year ended December 31, 2014:
	Balance at beginning of period		$	34,331		$	—		$	11,618		$	45,949
	Loans charged-off			(7,516	)		(1,531	)		—			(9,047	)
	Recoveries of loans previously charged off			2,574			604			—			3,178
	Net charge-offs			(4,942	)		(927	)		—			(5,869	)
	Provision for loan losses			5,150			927			(1,907	)		4,170
	Benefit attributable to FDIC loss share agreements			—			—			2,420			2,420
	Total provision for loan losses charged to operations			5,150			927			513			6,590
	Provision for loan losses recorded through the FDIC loss share receivable			—			—			(2,420	)		(2,420	)
	Reduction due to loan removals			—			—			(2,346	)		(2,346	)
	Balance at end of period		$	34,539		$	—		$	7,365		$	41,904
	Year ended December 31, 2013:
	Balance at beginning of period		$	44,378		$	—		$	17,218		$	61,596
	Loans charged-off			(15,289	)		—			—			(15,289	)
	Recoveries of loans previously charged off			4,224			—			—			4,224
	Net charge-offs			(11,065	)		—			—			(11,065	)
	Provision for loan losses			1,018			—			(918	)		100
	Benefit attributable to FDIC loss share agreements			—			—			1,786			1,786
	Total provision for loan losses charged to operations			1,018			—			868			1,886
	Provision for loan losses recorded through the FDIC loss share receivable			—			—			(1,786	)		(1,786	)
	Reduction due to loan removals			—			—			(4,682	)		(4,682	)
	Balance at end of period		$	34,331		$	—		$	11,618		$	45,949
	Year ended December 31, 2012:
	Balance at beginning of period		$	49,367		$	—		$	23,607		$	72,974
	Loans charged-off			(21,930	)		—			—			(21,930	)
	Recoveries of loans previously charged off			3,756			—			—			3,756
	Net charge-offs			(18,174	)		—			—			(18,174	)
	Provision for loan losses			13,185			—			512			13,697
	Benefit attributable to FDIC loss share agreements			—			—			(78	)		(78	)
	Total provision for loan losses charged to operations			13,185			—			434			13,619
	Provision for loan losses recorded through the FDIC loss share receivable			—			—			78			78
	Reduction due to loan removals			—			—			(6,901	)		(6,901	)
	Balance at end of period		$	44,378		$	—		$	17,218		$	61,596
Schedule of restructured loans segregated by class and type of concession
			Years Ended December 31,
			2014									2013									2012
	(Dollars in thousands)		Number			Pre-			Post-			Number			Pre-			Post-			Number			Pre-			Post-
			of loans			Modification			Modification			of loans			Modification			Modification			of loans			Modification			Modification
						Outstanding			Outstanding						Outstanding			Outstanding						Outstanding			Outstanding
						Recorded			Recorded						Recorded			Recorded						Recorded			Recorded
						Investment			Investment						Investment			Investment						Investment			Investment
	Interest rate modification
	Construction and land development			2		$	602		$	562			1		$	120		$	120			1		$	165		$	156
	Commercial non-owner occupied			—			—			—			1			246			233			—			—			—
	Commercial owner occupied			—			—			—			1			750			747			4			5,355			5,215
	Consumer owner occupied			4			484			464			1			124			116			—			—			—
	Commercial and industrial			—			—			—			—			—			—			1			474			464
	Other Income Producing Property			1			147			128			—			—			—			—			—			—
	Total interest rate modifications			7			1,233			1,154			4			1,240			1,216			6			5,994			5,835
	Term modification
	Construction and land development			1			99			95			—			—			—			2			835			824
	Commercial non-owner occupied			—			—			—			—			—			—			1			700			700
	Consumer owner occupied			—			—			—			1			2,442			2,442			—			—			—
	Other Income Producing Property			1			1,243			1,206			—			—			—			—			—			—
	Total term modifications			2			1,342			1,301			1			2,442			2,442			3			1,535			1,524
				9		$	2,575		$	2,455			5		$	3,682		$	3,658			9		$	7,529		$	7,359
Non-Credit impaired
Loans and Allowance for Loan Losses
Summary of average investment in impaired loans and interest income recognized on impaired loans
			Years Ended December 31,
			2014						2013						2012
	(Dollars in thousands)		Average			Interest			Average			Interest			Average			Interest
			Investment in			Income			Investment in			Income			Investment in			Income
			Impaired			Recognized			Impaired			Recognized			Impaired			Recognized
			Loans						Loans						Loans
	Commercial real estate:
	Construction and land development		$	5,295		$	80		$	10,589		$	98		$	18,048		$	114
	Commercial non-owner occupied			3,145			68			4,030			—			7,503			85
	Commercial owner occupied			10,360			141			15,170			106			17,460			347
	Consumer real estate:
	Consumer owner occupied			2,990			113			845			154			2,223			65
	Home equity loans			15			1			—			—			—			—
	Commercial and industrial			657			27			1,234						921			23
													—
	Other income producing property			4,073			163			3,463			35			3,171			117
	Consumer			30			5			—			—			—			—
	Other loans			—			—			—			—			—			—
	Total Impaired Loans		$	26,565		$	598		$	35,331		$	393		$	49,326		$	751
Summary of information pertaining to non-acquired nonaccrual loans by class
	(Dollars in thousands)		Unpaid			Recorded			Gross			Total			Related
			Contractual			Investment			Recorded			Recorded			Allowance
			Principal			With No			Investment			Investment
			Balance			Allowance			With
									Allowance
	December 31, 2014
	Commercial real estate:
	Construction and land development		$	7,414		$	1,528		$	3,324		$	4,852		$	475
	Commercial non-owner occupied			4,920			2,539			1,071			3,610			77
	Commercial owner occupied			12,508			5,546			3,614			9,160			172
	Consumer real estate:
	Consumer owner occupied			3,393			—			2,966			2,966			144
	Home equity loans			131			—			31			31			1
	Commercial and industrial			1,625			336			572			908			41
	Other income producing property			6,280			360			5,138			5,498			646
	Consumer			95			—			60			60			2
	Other loans			—			—			—			—			—
	Total		$	36,366		$	10,309		$	16,776		$	27,085		$	1,558
	December 31, 2013
	Commercial real estate:
	Construction and land development		$	7,341		$	3,555		$	2,184		$	5,739		$	704
	Commercial non-owner occupied			3,592			2,681			—			2,681			—
	Commercial owner occupied			14,017			10,441			1,119			11,560			10
	Consumer real estate:
	Consumer owner occupied			3,063			—			3,013			3,013			271
	Home equity loans			—			—			—			—			—
	Commercial and industrial			477			405						405
										—						—
	Other income producing property			2,794			554			2,095			2,649			646
	Consumer			—			—			—			—			—
	Other loans			—			—			—			—			—
	Total		$	31,284		$	17,636		$	8,411		$	26,047		$	1,631
Non-acquired loans
Loans and Allowance for Loan Losses
Summary of loans
			December 31,
	(Dollars in thousands)		2014			2013
	Non-acquired loans:
	Commercial non-owner occupied real estate:
	Construction and land development		$	364,221		$	299,951
	Commercial non-owner occupied			333,590			291,171
	Total commercial non-owner occupied real estate			697,811			591,122
	Consumer real estate:
	Consumer owner occupied			786,778			548,170
	Home equity loans			283,934			257,139
	Total consumer real estate			1,070,712			805,309
	Commercial owner occupied real estate			907,913			833,513
	Commercial and industrial			405,923			321,824
	Other income producing property			150,928			143,204
	Consumer			189,317			136,410
	Other loans			45,222			33,834
	Total non-acquired loans			3,467,826			2,865,216
	Less allowance for loan losses			(34,539	)		(34,331	)
	Non-acquired loans, net		$	3,433,287		$	2,830,885
Schedule of changes in allowance for loan losses
	(Dollars in thousands)		Construction &			Commercial			Commercial			Consumer			Home			Commercial &			Other Income			Consumer			Other			Total
			Land			Non-owner			Owner			Owner			Equity			Industrial			Producing						Loans
			Development			Occupied			Occupied			Occupied									Property
	Year ended December 31, 2014:
	Allowance for loan losses:
	Balance at beginning of period		$	6,789		$	3,677		$	7,767		$	6,069		$	2,782		$	3,592		$	2,509		$	937		$	209		$	34,331
	Charge-offs			(237	)		(442	)		(531	)		(382	)		(1,000	)		(1,114	)		(309	)		(3,501	)		—			(7,516	)
	Recoveries			421			390			95			271			69			264			191			873			—			2,574
	Provision (benefit)			(1,307	)		(471	)		1,084			908			978			819			(159	)		3,058			240			5,150
	Balance at end of period		$	5,666		$	3,154		$	8,415		$	6,866		$	2,829		$	3,561		$	2,232		$	1,367		$	449		$	34,539
	Loans individually evaluated for impairment		$	475		$	77		$	172		$	144		$	1		$	41		$	646		$	2		$	—		$	1,558
	Loans collectively evaluated for impairment		$	5,191		$	3,077		$	8,243		$	6,722		$	2,828		$	3,520		$	1,586		$	1,365		$	449		$	32,981
	Loans:
	Loans individually evaluated for impairment		$	4,852		$	3,610		$	9,160		$	2,966		$	31		$	908		$	5,498		$	60		$	—		$	27,085
	Loans collectively evaluated for impairment			359,369			329,980			898,753			783,812			283,903			405,015			145,430			189,257			45,222			3,440,741
	Total non-acquired loans		$	364,221		$	333,590		$	907,913		$	786,778		$	283,934		$	405,923		$	150,928		$	189,317		$	45,222		$	3,467,826
	Year ended December 31, 2013:
	Allowance for loan losses:
	Balance at beginning of period		$	10,836		$	4,921		$	8,743		$	6,568		$	3,626		$	4,939		$	3,747		$	781		$	217		$	44,378
	Charge-offs			(4,656	)		(660	)		(2,695	)		(1,462	)		(1,219	)		(1,329	)		(816	)		(2,452	)		—			(15,289	)
	Recoveries			1,395			353			41			633			228			514			224			836			—			4,224
	Provision (benefit)			(786	)		(937	)		1,678			330			147			(532	)		(646	)		1,772			(8	)		1,018
	Balance at end of period		$	6,789		$	3,677		$	7,767		$	6,069		$	2,782		$	3,592		$	2,509		$	937		$	209		$	34,331
	Loans individually evaluated for impairment		$	704		$	—		$	10		$	271		$	—		$	—		$	646		$	—		$	—		$	1,631
	Loans collectively evaluated for impairment		$	6,085		$	3,677		$	7,757		$	5,798		$	2,782		$	3,592		$	1,863		$	937		$	209		$	32,700
	Loans:
	Loans individually evaluated for impairment		$	5,739		$	2,681		$	11,560		$	3,013		$	—		$	405		$	2,649		$	—		$	—		$	26,047
	Loans collectively evaluated for impairment			294,212			288,490			821,953			545,157			257,139			321,419			140,555			136,410			33,834			2,839,169
	Total non-acquired loans		$	299,951		$	291,171		$	833,513		$	548,170		$	257,139		$	321,824		$	143,204		$	136,410		$	33,834		$	2,865,216
	Year ended December 31, 2012:
	Allowance for loan losses:
	Balance at beginning of period		$	12,373		$	6,109		$	10,356		$	7,453		$	4,269		$	3,901		$	3,636		$	1,145		$	125		$	49,367
	Charge-offs			(8,454	)		(2,348	)		(2,781	)		(1,850	)		(1,394	)		(2,033	)		(924	)		(2,146	)		—			(21,930	)
	Recoveries			1,428			282			5			124			600			228			361			728			—			3,756
	Provision			5,489			878			1,163			841			151			2,843			674			1,054			92			13,185
	Balance at end of period		$	10,836		$	4,921		$	8,743		$	6,568		$	3,626		$	4,939		$	3,747		$	781		$	217		$	44,378
	Loans individually evaluated for impairment		$	1,573		$	411		$	648		$	213		$	—		$	1,030		$	1,004		$	—		$	—		$	4,879
	Loans collectively evaluated for impairment		$	9,263		$	4,510		$	8,095		$	6,355		$	3,626		$	3,909		$	2,743		$	781		$	217		$	39,499
	Loans:
	Loans individually evaluated for impairment		$	13,549		$	5,344		$	20,212		$	1,954		$	—		$	1,783		$	4,393		$	—		$	—		$	47,235
	Loans collectively evaluated for impairment			259,871			284,727			763,940			432,549			255,284			277,980			129,320			86,934			33,163			2,523,768
	Total non-acquired loans		$	273,420		$	290,071		$	784,152		$	434,503		$	255,284		$	279,763		$	133,713		$	86,934		$	33,163		$	2,571,003
Schedule of credit risk profile by risk grade of loans
			Total Non-acquired Loans
	(Dollars in thousands)		December 31,			December 31,
			2014			2013
	Pass		$	3,286,228		$	2,656,027
	Special mention			118,790			126,420
	Substandard			62,786			82,717
	Doubtful			22			52
			$	3,467,826		$	2,865,216
Aging analysis of past due loans, segregated by class of loans
	(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
			Past Due			Past Due			Past Due			Past Due
	December 31, 2014
	Commercial real estate:
	Construction and land development		$	318		$	439		$	1,354		$	2,111		$	362,110		$	364,221
	Commercial non-owner occupied			1,197			—			1,432			2,629			330,961			333,590
	Commercial owner occupied			1,106			95			5,403			6,604			901,309			907,913
	Consumer real estate:
	Consumer owner occupied			1,946			501			2,746			5,193			781,585			786,778
	Home equity loans			679			443			519			1,641			282,293			283,934
	Commercial and industrial			760			123			107			990			404,933			405,923
	Other income producing property			570			114			1,319			2,003			148,925			150,928
	Consumer			512			243			120			875			188,442			189,317
	Other loans			65			46			62			173			45,049			45,222
			$	7,153		$	2,004		$	13,062		$	22,219		$	3,445,607		$	3,467,826
	December 31, 2013
	Commercial real estate:
	Construction and land development		$	557		$	476		$	2,707		$	3,740		$	296,211		$	299,951
	Commercial non-owner occupied			1,780			1			2,684			4,465			286,706			291,171
	Commercial owner occupied			457			650			3,601			4,708			828,805			833,513
	Consumer real estate:
	Consumer owner occupied			1,526			1,107			2,621			5,254			542,916			548,170
	Home equity loans			780			214			422			1,416			255,723			257,139
	Commercial and industrial			390			105			370			865			320,959			321,824
	Other income producing property			950			19			2,634			3,603			139,601			143,204
	Consumer			337			142			28			507			135,903			136,410
	Other loans			33			36			30			99			33,735			33,834
			$	6,810		$	2,750		$	15,097		$	24,657		$	2,840,559		$	2,865,216
Summary of information pertaining to impaired loans
			December 31,
	(Dollars in thousands)		2014			2013
	Commercial non-owner occupied real estate:
	Construction and land development		$	2,920		$	5,819
	Commercial non-owner occupied			2,325			2,912
	Total commercial non-owner occupied real estate			5,245			8,731
	Consumer real estate:
	Consumer owner occupied			6,015			8,382
	Home equity loans			1,412			1,128
	Total consumer real estate			7,427			9,510
	Commercial owner occupied real estate			3,605			7,753
	Commercial and industrial			600			586
	Other income producing property			1,348			4,704
	Consumer			344			49
	Other loans			—			—
	Restructured loans			9,425			10,690
	Total loans on nonaccrual status		$	27,994		$	42,023
Schedule of changes in status of loans restructured within the previous 12 months
			Paying Under						Converted to						Foreclosures and
			Restructured Terms						Nonaccrual						Defaults
	(Dollars in thousands)		Number			Recorded			Number			Recorded			Number			Recorded
			of Loans			Investment			of Loans			Investment			of Loans			Investment
	Interest rate modification			4		$	767			2		$	183			1		$	204
	Term modification			2			1,301			—			—			—			—
				6		$	2,068			2		$	183			1		$	204
Non-acquired loans | Commercial loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans
			Construction & Development						Commercial						Commercial Owner Occupied
									Non-owner Occupied
	(Dollars in thousands)		December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
			2014			2013			2014			2013			2014			2013
	Pass		$	337,641		$	263,698		$	307,450		$	259,120		$	858,220		$	785,406
	Special mention			15,466			20,814			20,596			24,779			34,737			26,148
	Substandard			11,114			15,439			5,544			7,272			14,956			21,959
	Doubtful			—			—			—			—			—			—
			$	364,221		$	299,951		$	333,590		$	291,171		$	907,913		$	833,513
			Commercial & Industrial						Other Income						Commercial Total
									Producing Property
			December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
			2014			2013			2014			2013			2014			2013
	Pass		$	397,555		$	309,360		$	135,400		$	124,519		$	2,036,266		$	1,742,103
	Special mention			6,718			10,376			10,333			9,903			87,850			92,020
	Substandard			1,650			2,088			5,195			8,753			38,459			55,511
	Doubtful			—			—			—			29			—			29
			$	405,923		$	321,824		$	150,928		$	143,204		$	2,162,575		$	1,889,663
Non-acquired loans | Consumer loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans
			Consumer Owner						Home Equity						Consumer
			Occupied
	(Dollars in thousands)		December 31,			December 31,			December 31,			December 31,			December 31,			December 31,
			2014			2013			2014			2013			2014			2013
	Pass		$	746,847		$	500,999		$	269,844		$	243,615		$	188,049		$	135,476
	Special mention			22,129			25,317			8,047			8,437			764			646
	Substandard			17,802			21,854			6,021			5,064			504			288
	Doubtful			—			—			22			23			—			—
			$	786,778		$	548,170		$	283,934		$	257,139		$	189,317		$	136,410
			Other						Consumer Total
			December 31,			December 31,			December 31,			December 31,
			2014			2013			2014			2013
	Pass		$	45,222		$	33,834		$	1,249,962		$	913,924
	Special mention			—			—			30,940			34,400
	Substandard			—			—			24,327			27,206
	Doubtful			—			—			22			23
			$	45,222		$	33,834		$	1,305,251		$	975,553
Acquired loans | First Financial Holdings, Inc. ("First Financial")
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans impaired and non-impaired at the acquisition date
			July 26, 2013
	(Dollars in thousands)		Loans Impaired			Loans			Total
			at Acquisition			Not Impaired
						at Acquisition
	Contractual principal and interest		$	662,273		$	238,166		$	900,439
	Non-accretable difference			(110,069	)		(11,905	)		(121,974	)
	Cash flows expected to be collected			552,204			226,261			778,465
	Accretable difference			(129,834	)		(52,122	)		(181,956	)
	Carrying value		$	422,370		$	174,139		$	596,509
Acquired loans | Savannah Bancorp ("SAVB")
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans impaired and non-impaired at the acquisition date
			December 13, 2012
	(Dollars in thousands)		Loans Impaired			Loans			Total
			at Acquisition			Not Impaired
						at Acquisition
	Contractual principal and interest		$	155,582		$	483,293		$	638,875
	Non-accretable difference			(37,492	)		(9,460	)		(46,952	)
	Cash flows expected to be collected			118,090			473,833			591,923
	Accretable difference			(8,615	)		(51,466	)		(60,081	)
	Carrying value		$	109,475		$	422,367		$	531,842
Acquired loans | Peoples
Loans and Allowance for Loan Losses
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans impaired and non-impaired at the acquisition date
			April 24, 2012
	(Dollars in thousands)		Loans Impaired			Loans			Total
			at Acquisition			Not Impaired
						at Acquisition
	Contractual principal and interest		$	56,940		$	250,023		$	306,963
	Non-accretable difference			(21,237	)		(16,560	)		(37,797	)
	Cash flows expected to be collected			35,703			233,463			269,166
	Accretable difference			(4,968	)		(29,953	)		(34,921	)
	Carrying value		$	30,735		$	203,510		$	234,245
Acquired loans | Non-Credit impaired
Loans and Allowance for Loan Losses
Summary of loans
			December 31,
	(Dollars in thousands)		2014			2013
	Acquired non-credit impaired loans:
	Commercial non-owner occupied real estate:
	Construction and land development		$	24,099		$	58,396
	Commercial non-owner occupied			49,476			58,598
	Total commercial non-owner occupied real estate			73,575			116,994
	Consumer real estate:
	Consumer owner occupied			646,375			745,481
	Home equity loans			234,949			264,150
	Total consumer real estate			881,324			1,009,631
	Commercial owner occupied real estate			62,065			73,714
	Commercial and industrial			41,130			58,773
	Other income producing property			65,139			74,566
	Consumer			204,766			267,257
	Total acquired non-credit impaired loans		$	1,327,999		$	1,600,935
Schedule of changes in allowance for loan losses
	(Dollars in thousands)		Construction			Commercial			Commercial			Consumer			Home			Commercial			Other			Consumer			Total
			& Land			Non-owner			Owner			Owner			Equity			& Industrial			Income
			Development			Occupied			Occupied			Occupied									Producing
																					Property
	Year ended December 31, 2014:
	Allowance for loan losses:
	Balance at beginning of period		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Charge-offs			(78	)		(72	)		—			(150	)		(530	)		(456	)		(14	)		(231	)		(1,531	)
	Recoveries			1			—			—			20			262			312			—			9			604
	Provision			77			72			—			130			268			144			14			222			927
	Balance at end of period		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans:
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment			24,099			49,476			62,065			646,375			234,949			41,130			65,139			204,766			1,327,999
	Total acquired non-credit impaired loans		$	24,099		$	49,476		$	62,065		$	646,375		$	234,949		$	41,130		$	65,139		$	204,766		$	1,327,999
Schedule of credit risk profile by risk grade of loans
			Total Acquired Non-credit
			Impaired Loans
			December 31,
	(Dollars in thousands)		2014			2013
	Pass		$	1,292,782		$	1,569,198
	Special mention			14,815			12,370
	Substandard			20,402			19,367
	Doubtful			—			—
			$	1,327,999		$	1,600,935
Aging analysis of past due loans, segregated by class of loans
	(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
			Past Due			Past Due			Past Due			Past Due
	December 31, 2014
	Commercial real estate:
	Construction and land development		$	17		$	—		$	40		$	57		$	24,042		$	24,099
	Commercial non-owner occupied			—			—			—			—			49,476			49,476
	Commercial owner occupied			414			—			38			452			61,613			62,065
	Consumer real estate:
	Consumer owner occupied			443			241			1,566			2,250			644,125			646,375
	Home equity loans			1,451			866			972			3,289			231,660			234,949
	Commercial and industrial			14			250			117			381			40,749			41,130
	Other income producing property			97			—			88			185			64,954			65,139
	Consumer			885			341			843			2,069			202,697			204,766
			$	3,321		$	1,698		$	3,664		$	8,683		$	1,319,316		$	1,327,999
	December 31, 2013
	Commercial real estate:
	Construction and land development		$	371		$	—		$	464		$	835		$	57,561		$	58,396
	Commercial non-owner occupied			105			—			17			122			58,476			58,598
	Commercial owner occupied			—			71			272			343			73,371			73,714
	Consumer real estate:
	Consumer owner occupied			3,368			393			1,196			4,957			740,524			745,481
	Home equity loans			857			67			625			1,549			262,601			264,150
	Commercial and industrial			827			894			282			2,003			56,770			58,773
	Other income producing property			431			—			—			431			74,135			74,566
	Consumer			291			213			154			658			266,599			267,257
	Other loans			—			—			—			—			—			—
			$	6,250		$	1,638		$	3,010		$	10,898		$	1,590,037		$	1,600,935
Summary of information pertaining to non-acquired nonaccrual loans by class
			December 31,
	(Dollars in thousands)		2014			2013
	Commercial non-owner occupied real estate:
	Construction and land development		$	41		$	—
	Commercial non-owner occupied			645			—
	Total commercial non-owner occupied real estate			686			—
	Consumer real estate:
	Consumer owner occupied			3,685			—
	Home equity loans			1,507			—
	Total consumer real estate			5,192			—
	Commercial owner occupied real estate			38			—
	Commercial and industrial			120			—
	Other income producing property			309			—
	Consumer			1,193			—
	Total loans on nonaccrual status		$	7,538		$	—
Acquired loans | Non-Credit impaired | Commercial loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans
			Construction &						Commercial						Commercial
			Development						Non-owner Occupied						Owner Occupied
			December 31,						December 31,						December 31,
	(Dollars in thousands)		2014			2013			2014			2013			2014			2013
	Pass		$	22,456		$	57,389		$	42,572		$	56,539		$	61,040		$	71,984
	Special mention			816			109			6,039			1,565			265			318
	Substandard			827			898			865			494			760			1,412
	Doubtful			—			—			—			—			—			—
			$	24,099		$	58,396		$	49,476		$	58,598		$	62,065		$	73,714
			Commercial &						Other Income						Commercial Total
			Industrial						Producing Property
			December 31,						December 31,						December 31,
			2014			2013			2014			2013			2014			2013
	Pass		$	39,780		$	56,777		$	63,090		$	70,812		$	228,938		$	313,501
	Special mention			448			924			896			2,177			8,464			5,093
	Substandard			902			1,072			1,153			1,577			4,507			5,453
	Doubtful			—			—			—			—			—			—
			$	41,130		$	58,773		$	65,139		$	74,566		$	241,909		$	324,047
Acquired loans | Non-Credit impaired | Consumer loans
Loans and Allowance for Loan Losses
Schedule of credit risk profile by risk grade of loans
			Consumer Owner						Home Equity						Consumer
			Occupied
			December 31,						December 31,						December 31,
	(Dollars in thousands)		2014			2013			2014			2013			2014			2013
	Pass		$	639,555		$	742,778		$	222,653		$	246,274		$	201,636		$	266,645
	Special mention			1,241			417			4,491			6,733			619			127
	Substandard			5,579			2,286			7,805			11,143			2,511			485
	Doubtful			—			—			—			—			—			—
			$	646,375		$	745,481		$	234,949		$	264,150		$	204,766		$	267,257
			Consumer Total
			December 31,
			2014			2013
	Pass		$	1,063,844		$	1,255,697
	Special mention			6,351			7,277
	Substandard			15,895			13,914
	Doubtful			—			—
			$	1,086,090		$	1,276,888
Acquired loans | Credit impaired
Loans and Allowance for Loan Losses
Summary of loans
			December 31,
	(Dollars in thousands)		2014			2013
	Acquired credit impaired loans:
	Commercial loans greater than or equal to $1 million-CBT		$	15,813		$	24,109
	Commercial real estate			325,109			439,785
	Commercial real estate—construction and development			65,262			114,126
	Residential real estate			390,244			481,247
	Consumer			85,449			103,998
	Commercial and industrial			44,804			68,862
	Single pay			86			129
	Total acquired credit impaired loans			926,767			1,232,256
	Less allowance for loan losses			(7,365	)		(11,618	)
	Acquired credit impaired loans, net		$	919,402		$	1,220,638
Schedule of contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans impaired and non-impaired at the acquisition date
			December 31,
	(Dollars in thousands)		2014			2013
	Contractual principal and interest		$	1,337,703		$	1,727,417
	Non-accretable difference			(104,110	)		(193,645	)
	Cash flows expected to be collected			1,233,593			1,533,772
	Accretable difference			(306,826	)		(301,516	)
	Carrying value		$	926,767		$	1,232,256
	Allowance for acquired loan losses		$	(7,365	)	$	(11,618	)
Schedule of changes in the carrying value of FASB ASC Topic 310-30
			Years Ended December 31,
	(Dollars in thousands)		2014			2013			2012
	Balance at beginning of period		$	1,220,638		$	969,395		$	370,581
	Fair value of acquired loans			—			596,509			766,087
	Net reductions for payments, foreclosures, and accretion			(299,329	)		(344,348	)		(166,761	)
	Change in the allowance for loan losses on acquired loans			(1,907	)		(918	)		(512	)
	Balance at end of period, net of allowance for loan losses on acquired loans		$	919,402		$	1,220,638		$	969,395
Schedule of changes in the amount of accretable yield for purchased impaired and non-impaired loans
			Years Ended December 31,
	(Dollars in thousands)		2014			2013			2012
	Balance at beginning of period		$	301,516		$	160,849		$	94,600
	Addition from the FFHI acquisition			—			181,956			—
	Addition from the Peoples acquisition			—			—			34,921
	Addition from the Savannah acquisition			—			—			60,081
	Interest income			(105,254	)		(104,705	)		(52,628	)
	Reclass of nonaccretable difference due to improvement in expected cash flows			112,316			71,136			35,739
	Other changes, net			(1,752	)		(7,720	)		(11,864	)
	Balance at end of period		$	306,826		$	301,516		$	160,849
Schedule of changes in allowance for loan losses
	(Dollars in thousands)		Commercial			Commercial			Commercial			Residential			Consumer			Commercial			Single Pay			Total
			Loans Greater			Real Estate			Real Estate-			Real Estate						and
			Than or						Construction									Industrial
			Equal to						and
			$1 Million-CBT						Development
	Year ended December 31, 2014:
	Allowance for loan losses:
	Balance, December 31, 2013		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
	Provision for loan losses before benefit attributable to FDIC loss share agreements			(129	)		(328	)		(621	)		(406	)		(111	)		(314	)		2			(1,907	)
	Benefit attributable to FDIC loss share agreements			183			364			792			571			141			371			(2	)		2,420
	Total provision for loan losses charged to operations			54			36			171			165			30			57			—			513
	Provision for loan losses recorded through the FDIC loss share receivable			(183	)		(364	)		(792	)		(571	)		(141	)		(371	)		2			(2,420	)
	Reduction due to loan removals			(39	)		(44	)		(1,287	)		(339	)		(152	)		(449	)		(36	)		(2,346	)
	Balance, December 31, 2014		$	135		$	1,444		$	336		$	4,387		$	275		$	718		$	70		$	7,365
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment		$	135		$	1,444		$	336		$	4,387		$	275		$	718		$	70		$	7,365
	Loans:*
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment			15,813			325,109			65,262			390,244			85,449			44,804			86			926,767
	Total acquired credit impaired loans		$	15,813		$	325,109		$	65,262		$	390,244		$	85,449		$	44,804		$	86		$	926,767
	Year ended December 31, 2013:
	Allowance for loan losses:
	Balance, December 31, 2012		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
	Provision for loan losses before benefit attributable to FDIC loss share agreements			(3,109	)		299			2,347			1,057			442			(1,786	)		(168	)		(918	)
	Benefit attributable to FDIC loss share agreements			2,934			(456	)		(1,645	)		(520	)		(412	)		1,719			166			1,786
	Total provision for loan losses charged to operations			(175	)		(157	)		702			537			30			(67	)		(2	)		868
	Provision for loan losses recorded through the FDIC loss share receivable			(2,934	)		456			1,645			520			412			(1,719	)		(166	)		(1,786	)
	Reduction due to loan removals			(1,925	)		—			(1,731	)		(132	)		—			(872	)		(22	)		(4,682	)
	Balance, December 31, 2013		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment		$	303		$	1,816		$	2,244		$	5,132		$	538		$	1,481		$	104		$	11,618
	Loans:*
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment			24,109			439,785			114,126			481,247			103,998			68,862			129			1,232,256
	Total acquired credit impaired loans		$	24,109		$	439,785		$	114,126		$	481,247		$	103,998		$	68,862		$	129		$	1,232,256
	*	—The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
	(Dollars in thousands)		Commercial			Commercial			Commercial			Residential			Consumer			Commercial			Single Pay			Total
			Loans Greater			Real Estate			Real Estate-			Real Estate						and
			Than or						Construction									Industrial
			Equal to						and
			$1 Million-CBT						Development
	Year ended December 31, 2012:
	Allowance for loan losses:
	Balance at beginning of period		$	12,417		$	1,318		$	—		$	5,332		$	—		$	4,564		$	(24	)	$	23,607
	Provision for loan losses before benefit attributable to FDIC loss share agreements			(1,298	)		199			1,628			(855	)		96			(259	)		1,001			512
	Benefit attributable to FDIC loss share agreements			1,233			(30	)		(1,319	)		813			(88	)		264			(951	)		(78	)
	Total provision for loan losses charged to operations			(65	)		169			309			(42	)		8			5			50			434
	Provision for loan losses recorded through the FDIC loss share receivable			(1,233	)		30			1,319			(813	)		88			(264	)		951			78
	Reduction due to loan removals			(5,782	)		—			—			(270	)		—			(166	)		(683	)		(6,901	)
	Balance at end of period		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment		$	5,337		$	1,517		$	1,628		$	4,207		$	96		$	4,139		$	294		$	17,218
	Loans:*
	Loans individually evaluated for impairment		$	—		$	—		$	—		$	—		$	—		$	—		$	—		$	—
	Loans collectively evaluated for impairment			39,661			372,924			130,451			354,718			15,685			72,718			456			986,613
	Total acquired credit impaired loans		$	39,661		$	372,924		$	130,451		$	354,718		$	15,685		$	72,718		$	456		$	986,613
	*	—The carrying value of acquired credit impaired loans includes a non-accretable difference which is primarily associated with the assessment of credit quality of acquired loans.
Schedule of credit risk profile by risk grade of loans
			Commercial Loans						Commercial Real Estate						Commercial Real
			Greater Than or												Estate—Construction
			Equal to												and Development
			$1 million-CBT
			December 31,						December 31,						December 31,
	(Dollars in thousands)		2014			2013			2014			2013			2014			2013
	Pass		$	11,248		$	12,047		$	208,269		$	244,293		$	26,855		$	38,748
	Special mention			1,030			2,513			35,896			46,159			9,539			13,762
	Substandard			3,535			9,549			80,944			149,333			28,868			61,616
	Doubtful			—			—			—			—			—			—
			$	15,813		$	24,109		$	325,109		$	439,785		$	65,262		$	114,126
			Residential Real Estate						Consumer						Commercial &
															Industrial
			December 31,						December 31,						December 31,
			2014			2013			2014			2013			2014			2013
	Pass		$	190,931		$	203,296		$	7,493		$	8,804		$	25,530		$	38,450
	Special mention			73,699			91,468			29,087			38,322			5,317			3,968
	Substandard			125,614			186,405			48,869			56,872			13,957			26,444
	Doubtful			—			78			—			—			—			—
			$	390,244		$	481,247		$	85,449		$	103,998		$	44,804		$	68,862
			Single Pay						Total Acquired Credit
									Impaired Loans
			December 31,						December 31,
			2014			2013			2014			2013
	Pass		$	58		$	52		$	470,384		$	545,690
	Special mention			—			—			154,568			196,192
	Substandard			28			77			301,815			490,296
	Doubtful			—			—			—			78
			$	86		$	129		$	926,767		$	1,232,256
Aging analysis of past due loans, segregated by class of loans
	(Dollars in thousands)		30 - 59 Days			60 - 89 Days			90+ Days			Total			Current			Total Loans
			Past Due			Past Due			Past Due			Past Due
	December 31, 2014
	Commercial loans greater than or equal to $1 million—CBT		$	—		$	—		$	2,896		$	2,896		$	12,917		$	15,813
	Commercial real estate			4,350			723			15,866			20,939			304,170			325,109
	Commercial real estate—construction and development			1,750			452			8,204			10,406			54,856			65,262
	Residential real estate			7,194			2,856			15,471			25,521			364,723			390,244
	Consumer			2,241			1,106			2,614			5,961			79,488			85,449
	Commercial and industrial			451			196			3,413			4,060			40,744			44,804
	Single pay			—			—			—			—			86			86
			$	15,986		$	5,333		$	48,464		$	69,783		$	856,984		$	926,767
	December 31, 2013
	Commercial loans greater than or equal to $1 million—CBT		$	—		$	—		$	7,217		$	7,217		$	16,892		$	24,109
	Commercial real estate			4,493			3,728			24,362			32,583			407,202			439,785
	Commercial real estate—construction and development			4,847			9,166			17,567			31,580			82,546			114,126
	Residential real estate			13,794			3,792			27,061			44,647			436,600			481,247
	Consumer			2,390			552			2,050			4,992			99,006			103,998
	Commercial and industrial			3,875			634			3,829			8,338			60,524			68,862
	Single pay			—			—			46			46			83			129
			$	29,399		$	17,872		$	82,132		$	129,403		$	1,102,853		$	1,232,256

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	12 Months Ended
	Dec. 31, 2014
FDIC Indemnification Asset
Schedule of changes in FDIC indemnification asset
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Balance at beginning of period	$	86,447		$	146,171		$	262,651
	FDIC indemnification asset recorded for First Federal's loss share agreements		—			21,891			—
	Increase (decrease) in expected losses on loans		(2,421	)		(3,452	)		78
	Additional losses (gains) on OREO		(4,520	)		(2,252	)		7,467
	Reimbursable expenses		2,829			5,542			9,262
	Amortization of discounts and premiums, net		(21,895	)		(29,535	)		(20,773	)
	Reimbursements from FDIC		(38,279	)		(51,918	)		(112,514	)
	Balance at end of period	$	22,161		$	86,447		$	146,171

Other_Real_Estate_Owned_Tables

Other Real Estate Owned (Tables)	12 Months Ended
	Dec. 31, 2014
Other Real Estate Owned
Schedule of information pertaining to OREO
	(Dollars in thousands)	OREO			Covered			Total
					OREO
	Balance, December 31, 2011	$	18,022		$	65,849		$	83,871
	Acquired in Peoples acquisition		8,104			—			8,104
	Acquired in SAVB acquisition		7,106			—			7,106
	Additions, net		25,958			20,631			46,589
	Writedowns		(5,633	)		(7,557	)		(13,190	)
	Sold		(21,309	)		(44,666	)		(65,975	)
	Balance, December 31, 2012	$	32,248		$	34,257		$	66,505
	Acquired in FFHI acquisition		4,801			6,405			11,206
	Additions, net		33,761			20,559			54,320
	Writedowns		(7,831	)		(278	)		(8,109	)
	Sold		(25,581	)		(33,423	)		(59,004	)
	Balance, December 31, 2013		37,398			27,520			64,918
	Additions, net		29,260			16,555			45,815
	Writedowns		(4,827	)		(5,858	)		(10,685	)
	Sold		(35,332	)		(21,990	)		(57,322	)
	Balance, December 31, 2014	$	26,499		$	16,227		$	42,726

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Premises and Equipment
Schedule of premises and equipment
				December 31,
	(Dollars in thousands)	Useful Life		2014			2013
	Land			$	54,269		$	67,056
	Buildings and leasehold improvements		15 - 40 years		139,742			145,028
	Equipment and furnishings		3 - 10 years		72,671			70,989
	Construction in process				611			939
	Total				267,293			284,012
	Less accumulated depreciation				(95,521	)		(95,898	)
				$	171,772		$	188,114

Goodwill_and_Other_Intangible_1

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Other Intangible Assets
Summary of changes in the carrying amounts of goodwill
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Balance at beginning of period	$	317,688		$	103,292
	Additions:
	Goodwill from FFHI acquisition		—			214,396
	Balance at end of period	$	317,688		$	317,688
Summary of gross carrying amounts and accumulated amortization of other intangible assets
		December 31,
	(Dollars in thousands)	2014			2013
	Gross carrying amount	$	75,354		$	77,896
	Accumulated amortization		(26,115	)		(17,988	)
		$	49,239		$	59,908
Schedule of estimated amortization expense of intangibles assets
	(Dollars in thousands)
	Years ending December 31:
	2015	$	7,890
	2016		6,377
	2017		6,136
	2018		5,797
	2019		5,530
	Thereafter		17,509
		$	49,239

Deposits_Tables

Deposits (Tables)	12 Months Ended
	Dec. 31, 2014
Deposits
Schedule of total deposits
		December 31,
	(Dollars in thousands)	2014		2013
	Certificates of deposit	$	1,237,140	$	1,525,567
	Interest-bearing demand deposits		2,927,820		2,893,646
	Non-interest bearing demand deposits		1,639,953		1,486,445
	Savings deposits		655,132		647,648
	Other time deposits		1,000		838
	Total deposits	$	6,461,045	$	6,554,144
Schedule of maturities of time deposits of all denominations
	(Dollars in thousands)
	Years ending December 31:
	2015	$	835,296
	2016		229,820
	2017		90,151
	2018		43,179
	2019		31,756
	Thereafter		7,938
		$	1,238,140

Federal_Funds_Purchased_and_Se1

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Tables)	12 Months Ended
	Dec. 31, 2014
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase
Schedule of information concerning federal funds purchased and securities sold under agreements to repurchase
		December 31,
		2014					2013					2012
	(Dollars in thousands)	Amount		Rate			Amount		Rate			Amount		Rate
	At period-end:
	Federal funds purchased and securities sold under repurchase agreements	$	221,541		0.14	%	$	211,401		0.14	%	$	238,621		0.17	%
	Average for the year:
	Federal funds purchased and securities sold under repurchase agreements	$	253,948		0.14	%	$	274,080		0.16	%	$	229,185		0.20	%
	Maximum month-end balance:
	Federal funds purchased and securities sold under repurchase agreements	$	321,733				$	328,701				$	254,104

Other_Borrowings_Tables

Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2014
Other Borrowings
Schedule of other borrowings
		December 31,
	(Dollars in thousands)	2014		2013
	FFCH Capital Trust I junior subordinated debt with a fixed interest rate of 7.00% and pays interest quarterly; matures on April 6, 2034, and can be called by the issuer without penalty on or after April 7, 2009 for the principal outstanding plus any accrued interest; net of discount of $134 on December 31, 2014. Guaranteed by the Company on a subordinated basis.	$	46,258	$	46,135
	SCBT Capital Trust III junior subordinated debt with a fixed interest rate of 5.92% until September 15, 2015 and thereafter at a rate equal to the three-month LIBOR rate plus a spread of 159 basis points adjusted quarterly; matures on July 18, 2035, and can be called by the issuer without penalty on or after September 15, 2012 for the outstanding principal plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		20,619		20,619
	SCBT Capital Trust I junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 179 basis points adjusted quarterly; matures on June 15, 2035, and can be called by the issuer without penalty on or after June 30, 2010 for the principal outstanding plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		12,372		12,372
	SCBT Capital Trust II junior subordinated debt with a fixed interest rate of 6.37% until June 15, 2010 and thereafter at a rate equal to the three-month LIBOR rate plus a spread of 179 basis points adjusted quarterly; matures on June 15, 2035, and can be called by the issuer without penalty on or after June 30, 2010 for the principal outstanding plus any accrued and unpaid interest. Guaranteed by the Company on a subordinated basis.		8,248		8,248
	SAVB Capital Trust I junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 285 basis points adjusted quarterly; matures on October 7, 2033, and can be called by the issuer without penalty on or after October 7, 2008 for the principal outstanding plus any accrued and unpaid interest; net of discount of $342 on December 31, 2014. Guaranteed by the Company on a subordinated basis.		5,844		5,729
	SAVB Capital Trust II junior subordinated debt with a variable interest rate equal to the three-month LIBOR rate plus a spread of 220 basis points adjusted quarterly; matures on December 15, 2034, and can be called by the issuer without penalty on or after December 15, 2009 for the principal outstanding plus any accrued and unpaid interest; net of discount of $296 on December 31, 2014. Guaranteed by the Company on a subordinated basis.		3,828		3,729
	TSB Statutory Trust I junior subordinated debt with a variable interest rate of three-month LIBOR plus 172 basis points and pays interest quarterly; rate is subject to quarterly resets; matures on March 14, 2037, and can be called by the issuer without penalty on or after December 15, 2011. Guaranteed by the Company on a subordinated basis.		3,093		3,093
	Other		948		2,135
		$	101,210	$	102,060
Summary of principal maturities of other borrowings
	(Dollars in thousands)	Junior		Other		Total
		Subordinated
		Debt
	Years Ended December 31,
	2015	$	—	$	6	$	6
	2016		—		6		6
	2017		—		7		7
	2018		—		7		7
	2019		—		7		7
	Thereafter		100,262		915		101,177
		$	100,262	$	948	$	101,210

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Taxes
Schedule of provision for income taxes
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Current:
	Federal	$	8,577		$	22,153		$	10,455
	State		1,609			1,135			1,351
	Total current tax expense		10,186			23,288			11,806
	Deferred:
	Federal		26,156			973			3,161
	State		(351	)		1,094			161
	Total deferred tax expense (benefit)		25,805			2,067			3,322
	Provision for income taxes	$	35,991		$	25,355		$	15,128
Analysis of difference between the provision for income taxes and taxes computed by applying the federal statutory income tax rate to income before provision for income taxes
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Income taxes at federal statutory rate	$	39,000		$	26,101		$	15,806
	Increase (reduction) of taxes resulting from:
	State income taxes, net of federal tax benefit		818			1,450			983
	Tax-exempt interest		(1,778	)		(1,792	)		(1,436	)
	Income tax credits		(1,257	)		(1,094	)		(571	)
	Dividends received deduction		(5	)		(4	)		(3	)
	Other, net		(787	)		694			349
		$	35,991		$	25,355		$	15,128
Schedule of components of the net deferred tax asset
		December 31,
	(Dollars in thousands)	2014			2013
	Allowance for loan losses	$	13,611		$	13,386
	Other-than-temporary impairment on securities		120			136
	Share-based compensation		1,762			952
	Pension plan and post-retirement benefits		1,063			159
	Deferred compensation		2,523			2,030
	Purchase accounting adjustments		53,052			72,104
	Other real estate owned		1,926			8,141
	Tax deductible goodwill		1,624			1,724
	Net operating loss carryforwards		17,127			17,722
	Cash flow hedge		326			348
	Unrealized losses on investment securities available for sale		—			3,440
	Other		1,024			4,678
	Total deferred tax assets		94,158			124,820
	Gain on FDIC assisted transaction deferred for tax purposes		9,856			11,689
	Unrealized gains on investment securities available for sale		3,369			—
	Depreciation		6,388			5,123
	Intangible assets		15,584			17,985
	Deferred loan fees		3,445			3,698
	Prepaid expense		537			669
	Other		10,809			10,851
	Total deferred tax liabilities		49,988			50,015
	Net deferred tax asset (liability) before valuation allowance		44,170			74,805
	Less, valuation allowance		(1,478	)		(1,042	)
	Net deferred tax asset	$	42,692		$	73,763

Other_Expense_Tables

Other Expense (Tables)	12 Months Ended
	Dec. 31, 2014
Other Expense
Summary of the components of other noninterest expense
		Years Ended December 31,
	(Dollars in thousands)	2014		2013		2012
	Business development and staff related	$	5,684	$	4,962	$	2,916
	Other loan expense		2,056		2,220		1,494
	Courier expense		1,559		962		561
	Director and shareholder expense		1,550		1,290		1,196
	Property and sales tax		616		662		262
	Office supplies		488		397		392
	Other		6,938		6,301		2,978
		$	18,891	$	16,794	$	9,799

Earnings_Per_Common_Share_Tabl

Earnings Per Common Share (Tables)	12 Months Ended
	Dec. 31, 2014
Earnings Per Common Share
Schedule of computation of basic and diluted earnings per share
		Years Ended December 31,
	(Dollars in thousands)	2014			2013		2012
	Numerator:
	Net income available to common shareholders—numerator for basic and diluted earnings per share	$	74,364		$	47,865	$	30,032
	Denominator:
	Denominator for basic earnings per share—weighted-average shares outstanding		23,897			19,866		14,698
	Effect of dilutive securities:
	Employee stock options and restricted stock		257			211		98
	Dilutive potential shares:
	Denominator for diluted earnings per share—adjusted weighted-average shares		24,154			20,077		14,796
	Basic earnings per common share	$	3.11		$	2.41	$	2.04
	Diluted earnings per common share	$	3.08		$	2.38	$	2.03
Schedule of anti-dilutive securities excluded from computation of diluted earnings per common share
		Years Ended December 31,
	(Dollars in thousands)	2014		2013		2012
	Number of shares	22,497		21,361		138,729
	Range of exercise prices	$61.49 to $66.32		$41.45 to $41.45		$31.10 to $40.99

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss).
Schedule of components of accumulated other comprehensive loss
	(Dollars in thousands)	Benefit			Unrealized Gains			Gains and			Total
		Plans			and Losses			Losses on
					on Securities			Cash Flow
					Available			Hedges
					for Sale
	Balance at December 31, 2011	$	(7,823	)	$	5,935		$	(861	)	$	(2,749	)
	Other comprehensive income (loss) before reclassifications		52			2,946			(250	)		2,748
	Amounts reclassified from accumulated other comprehensive income (loss)		313			(117	)		181			377
	Net comprehensive income (loss)		365			2,829			(69	)		3,125
	Balance at December 31, 2012		(7,458	)		8,764			(930	)		376
	Other comprehensive income (loss) before reclassifications		3,555			(14,337	)		175			(10,607	)
	Amounts reclassified from accumulated other comprehensive income (loss)		318			—			190			508
	Net comprehensive income (loss)		3,873			(14,337	)		365			(10,099	)
	Balance at December 31, 2013		(3,585	)		(5,573	)		(565	)		(9,723	)
	Other comprehensive income (loss) before reclassifications		(2,201	)		11,039			(156	)		8,682
	Amounts reclassified from accumulated other comprehensive income (loss)		471			1			192			664
	Net comprehensive income (loss)		(1,730	)		11,040			36			9,346
	Balance at December 31, 2014	$	(5,315	)	$	5,467		$	(529	)	$	(377	)
Schedule of reclassifications out of accumulated other comprehensive loss, net of tax
		Amount Reclassified from
		Accumulated Other
		Comprehensive Income (Loss)
		For the Year Ended December 31,
											Income Statement Line Item Affected
	Accumulated Other Comprehensive	2014			2013			2012
	Income (Loss) Component
	(Gains) losses on cash flow hedges:
	Interest rate contracts	$	310		$	307		$	293		Interest expense
			(118	)		(117	)		(112	)	Provision for income taxes
			192			190			181		Net income
	(Gains) losses on sales of available for sale securities:
		$	2		$	—		$	(189	)	Other noninterest income
			(1	)		—			72		Provision for income taxes
			1			—			(117	)	Net income
	Amortization of defined benefit pension items:
	Actuarial (gains) losses	$	761		$	482		$	471		Salaries and employee benefits
			(290	)		(164	)		(158	)	Provision for income taxes
			471			318			313		Net income
	Total reclassifications for the period	$	664		$	508		$	377

Retirement_Plans_Tables

Retirement Plans (Tables) (Non-contributory defined benefit pension plan)	12 Months Ended
	Dec. 31, 2014
Non-contributory defined benefit pension plan
Retirement Plans
Schedule of the pension plan's funded status and amounts recognized in the company's accompanying consolidated financial statements
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	24,608		$	26,703		$	25,015
	Interest cost		1,111			997			1,033
	Actuarial (gain) loss		3,057			(2,359	)		1,308
	Benefits paid		(774	)		(733	)		(653	)
	Benefit obligation at end of year		28,002			24,608			26,703
	Change in plan assets:
	Fair value of plan assets at beginning of year		27,033			22,219			19,233
	Actual return on plan assets		1,592			4,347			2,439
	Employer contribution		600			1,200			1,200
	Benefits paid		(774	)		(733	)		(653	)
	Fair value of plan assets at end of year		28,451			27,033			22,219
	Funded status	$	449		$	2,425		$	(4,484	)
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Interest cost	$	1,110		$	997		$	1,033
	Expected return on plan assets		(1,938	)		(1,721	)		(1,631	)
	Recognized net actuarial loss		659			1,206			1,069
	Net periodic benefit cost		(169	)		482			471
	Net (gain) loss		3,404			(4,986	)		500
	Amortization of net loss		(659	)		(1,206	)		(1,069	)
	Total amount recognized in other comprehensive income		2,745			(6,192	)		(569	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	2,576		$	(5,710	)	$	(98	)
Schedule of accumulated benefit obligations in excess of plan assets
		December 31,
	(Dollars in thousands)	2014			2013
	Projected benefit obligation	$	28,002		$	24,608
	Accumulated benefit obligation		28,002			24,608
	Fair value of plan assets		28,451			27,033
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost
		Years Ended December 31,
		2014			2013			2012
	Discount rate		4.60	%		3.80	%		4.20	%
	Expected long-term return on plan assets		7.75	%		7.75	%		7.75	%
Schedule of long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
	Asset Class	Rate of Return			Standard Deviation
		Assumption			Assumption
	Cash Equivalents		3.00	%		0.60	%
	High Grade Fixed Income		6.32	%		3.50	%
	High Yield Fixed Income		8.31	%		8.96	%
	International Fixed Income		6.74	%		8.36	%
	Large Cap Equity		10.05	%		16.95	%
	Mid Cap Equity		11.56	%		17.54	%
	Mid/Small Cap Equity		10.26	%		18.99	%
	Small Cap Equity		8.96	%		20.43	%
	Foreign Equity		7.27	%		17.43	%
Schedule of fair values of the company's pension plan assets	The fair values of the Company's pension plan assets at December 31, 2014 by asset category are as follows:
	(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
		December 31,			In Active			Other			Unobservable
		2014			Markets			Observable			Inputs
					for Identical			Inputs			(Level 3)
					Assets			(Level 2)
					(Level 1)
	Cash and cash equivalents	$	4		$	4		$	—		$	—
	Money market funds		2,393			2,393			—			—
	Broad market fixed income		8,098			8,098			—			—
	Domestic equity		15,459			15,459			—			—
	Foreign equity		2,497			2,497			—			—
	Total assets	$	28,451		$	28,451		$	—		$	—
Schedule of estimated future benefit payments
	(Dollars in thousands)
	2015	$	1,065
	2016		1,181
	2017		1,297
	2018		1,393
	2019		1,443
	2020-2024		7,792
		$	14,171
Schedule of expenses incurred and charged against operations with regard to all of the company's retirement plans
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Pension	$	(169	)	$	482		$	471
	Employee savings plan/ 401(k)		4,966			3,508			1,741
	Supplemental executive retirement plan		88			455			543
	Post-retirement benefits		242			164			59
		$	5,127		$	4,609		$	2,814

PostRetirement_Benefits_Tables

Post-Retirement Benefits (Tables)	12 Months Ended
	Dec. 31, 2014
Retiree Medical Plan
Post-Retirement Benefits
Schedule of the plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	444		$	518		$	555
	Interest cost		15			19			22
	Actuarial (gain) loss		24			(41	)		(4	)
	Benefits paid		(47	)		(52	)		(55	)
	Benefit obligation at end of year		436			444			518
	Change in plan assets:
	Fair value of plan assets at beginning of year		—			—			—
	Employer contribution		47			52			55
	Benefits paid		(47	)		(52	)		(55	)
	Fair value of plan assets at end of year		—			—			—
	Funded status	$	(436	)	$	(444	)	$	(518	)
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost
		Years Ended
		December 31,
		2014			2013			2012
	Weighted-average assumptions used to determine benefit obligation at December 31:
	Discount rate		3.00	%		3.60	%		3.80	%
	Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:
	Discount rate		3.60	%		3.80	%		4.20	%
	Assumed health care cost trend rates at December 31:
	Health care cost trend rate assumed for next year		5.00	%		5.00	%		5.00	%
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013			2012
	Interest cost	$	15		$	19		$	22
	Amortization of transition obligation		—			—			26
	Recognized net actuarial loss		6			10			11
	Net periodic benefit cost		21			29			59
	Net (gain) loss		24			(41	)		(4	)
	Amortization of transition obligation		—			—			(26	)
	Amortization of loss		(6	)		(10	)		(11	)
	Total amount recognized in other comprehensive income		18			(51	)		(41	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	39		$	(22	)	$	18
Schedule of effects of one-percentage-point change in assumed health care cost trend rates
		One-Percentage
		Point
	(Dollars in thousands)	Increase			Decrease
	Effect on total of interest cost	$	1		$	(1	)
	Effect on postretirement benefit obligation		27			(25	)
Schedule of estimated future benefit payments (including expected future service as appropriate)
	(Dollars in thousands)
	2015	$	45
	2016		44
	2017		43
	2018		42
	2019		40
	2020-2024		166
		$	380
Retiree Welfare Plan
Post-Retirement Benefits
Schedule of the plan's funded status and amounts recognized in the Company's accompanying consolidated financial statements
		December 31,
	(Dollars in thousands)	2014			2013
	Change in benefit obligation:
	Benefit obligation at beginning of year	$	2,197		$	2,231
	Interest cost		85			37
	Participants' contributions		72			63
	Actuarial (gain) loss		299			(4	)
	Benefits paid		(322	)		(145	)
	less: federal subsidy on benefits paid		—			15
	Benefit obligation at end of year		2,331			2,197
	Change in plan assets:
	Fair value of plan assets at beginning of year		—			—
	Employer contribution		250			82
	Participants' contributions		72			63
	Benefits paid		(322	)		(145	)
	Fair value of plan assets at end of year		—			—
	Funded status	$	(2,331	)	$	(2,197	)
Schedule of weighted average assumptions used to determine benefit obligations and net periodic benefit cost
		Year Ended
		December 31,
		2014			2013
	Weighted-average assumptions used to determine benefit obligation at December 31:
	Discount rate		3.45	%		4.05	%
	Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:
	Discount rate		4.05	%		3.95	%
	Assumed health care cost trend rates at December 31:
	Health care cost trend rate assumed for next year		6.50	%		6.75	%
Schedule of components of net periodic benefit cost and other amounts recognized in other comprehensive income
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Interest cost	$	84		$	36
	Recognized net actuarial loss		96			39
	Net periodic benefit cost		180			75
	Net (gain) loss		299			(4	)
	Amortization of loss		(96	)		(39	)
	Total amount recognized in other comprehensive income		203			(43	)
	Total recognized in net periodic benefit cost and other comprehensive income	$	383		$	32
Schedule of effects of one-percentage-point change in assumed health care cost trend rates
		One-Percentage
		Point
	(Dollars in thousands)	Increase			Decrease
	Effect on aggregate service and interest cost	$	6		$	(5	)

ShareBased_Compensation_Tables

Share-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2014
Share-Based Compensation
Schedule of stock option activity
		Years Ended December 31,
		2014						2013						2012
		Shares			Weighted			Shares			Weighted			Shares			Weighted
					Average						Average						Average
					Exercise						Exercise						Exercise
					Price						Price						Price
	Outstanding at January 1		295,916		$	33.26			340,140		$	31.79			370,207		$	30.69
	Granted		22,497			65.59			23,007			41.45			28,224			31.75
	Exercised		(22,878	)		31.06			(65,555	)		28.75			(51,887	)		23.99
	Forfeited		(1,180	)		31.97			(220	)		27.22			(6,150	)		31.8
	Expired		(13	)		27.22			(1,456	)		22.17			(254	)		15.93
	Outstanding at December 31		294,342			35.91			295,916			33.26			340,140			31.79
	Exercisable at December 31		239,417			33.17			233,566			32.66			267,941			31.73
	Weighted-average fair value of options granted during the year				$	26.44					$	15.66					$	11.55
Schedule of information pertaining to options outstanding
		Options Outstanding								Options Exercisable
	Range of Exercise Prices	Number			Weighted		Weighted			Number			Weighted			Weighted
		Outstanding			Average		Average			Outstanding			Average			Average
					Remaining		Exercise Price						Exercise Price			Remaining
					Contractual											Contractual
					Life											Life
	$25.01 - $30.00		42,198		3.7 years			27.51			42,196			27.51
	$30.01 - $35.00		142,758		4.1 years			31.80			125,296			31.78
	$35.01 - $40.00		61,482		3.2 years			38.07			61,479			38.07
	$40.01 - $45.00		25,407		7.8 years			41.41			9,384			41.33
	$60.01 - $66.32		22,497		9.1 years			65.59			1,062			65.21
			294,342		4.5 years			35.91			239,417			33.17		3.7 years
Schedule of weighted-average assumptions used in valuing options
		2014		2013		2012
	Dividend yield	1.27%		1.70%		2.10%
	Expected life	6 years		6 years		6 years
	Expected volatility	43.8% - 44.7%		45.7% - 45.7%		45.8% - 45.8%
	Risk-free interest rate	2.10%		1.02%		1.06%
Summary of nonvested restricted stock
	Restricted Stock	Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Nonvested at January 1, 2014		232,547		$	35.15
	Granted		28,014			60.4
	Vested		(27,200	)		40.9
	Forfeited		(4,454	)		41.45
	Nonvested at December 31, 2014		228,907			37.44
Vesting schedule of shares
		Shares
	2015		35,758
	2016		79,261
	2017		52,892
	2018		34,920
	2019		4,467
	Thereafter		21,609
			228,907
Summary of nonvested RSUs
	Restricted Stock Units	Shares			Weighted-
					Average
					Grant-Date
					Fair Value
	Nonvested at January 1, 2014		43,820		$	51.01
	Granted		37,802			61.49
	Vested		(2,314	)		54
	Nonvested at December 31, 2014		79,308			55.92

Lease_Commitments_Tables

Lease Commitments (Tables)	12 Months Ended
	Dec. 31, 2014
Lease Commitments
Schedule of future minimum lease payments, by year and in the aggregate, under noncancellable operating leases with initial or remaining terms in excess of one year
	(Dollars in thousands)
	Years Ending December 31,
	2015		5,064
	2016		4,996
	2017		4,737
	2018		4,020
	2019		3,163
	Thereafter		16,302
		$	38,282

Financial_Instruments_with_Off1

Financial Instruments with Off-Balance Sheet Risk (Tables)	12 Months Ended
	Dec. 31, 2014
Financial Instruments with Off-Balance Sheet Risk
Schedule of financial instruments of the subsidiary, whose contract amounts represent credit risk
		December 31,
	(Dollars in thousands)	2014		2013
	Commitments to extend credit	$	1,259,653	$	1,299,134
	Standby letters of credit and financial guarantees		17,404		28,910
		$	1,277,057	$	1,328,044

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2014
Fair Value
Schedule of recorded amount of assets and liabilities measured at fair value on a recurring basis
	(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
					In Active			Other			Unobservable
					Markets			Observable			Inputs
					for Identical			Inputs			(Level 3)
					Assets			(Level 2)
					(Level 1)
	December 31, 2014:
	Assets
	Derivative financial instruments	$	3,317		$	—		$	3,317		$	—
	Securities available for sale:
	Government-sponsored entities debt	$	148,197		$	—		$	148,197		$	—
	State and municipal obligations		137,581			—			137,581			—
	Mortgage-backed securities		517,946			—			517,946			—
	Corporate stocks		3,042			2,817			225			—
	Total securities available for sale		806,766			2,817			803,949			—
	Mortgage servicing rights		21,601			—			—			21,601
		$	831,684		$	2,817		$	807,266		$	21,601
	Liabilities
	Derivative financial instruments	$	1,028		$	—		$	1,028		$	—
	December 31, 2013:
	Assets
	Derivative financial instruments	$	701		$	—		$	701		$	—
	Securities available for sale:
	Government-sponsored entities debt	$	142,994		$	—		$	142,994		$	—
	State and municipal obligations		140,651			—			140,651			—
	Mortgage-backed securities		499,479			—			499,479			—
	Corporate stocks		3,667			3,442			225			—
	Total securities available for sale		786,791			3,442			783,349			—
	Mortgage servicing rights		20,729			—			—			20,729
		$	808,221		$	3,442		$	784,050		$	20,729
	Liabilities
	Derivative financial instruments	$	1,857		$	—		$	1,857		$	—
Schedule of reconciliation of the beginning and ending balances of Level 3 assets and liabilities recorded at fair value on a recurring basis
	(Dollars in thousands)	Assets			Liabilities
	Fair value, January 1, 2013	$	3,851		$	—
	Mortgage and other loan income		172			—
	Acquired in the First Financial acquisition		19,156			—
	Purchases, issuances and settlements, net		(3,851	)		—
	Transfers in and/or out of level 3		1,401			—
	Fair value, December 31, 2013	$	20,729		$	—
	Mortgage and other loan income		(3,999	)		—
	Purchases, issuances and settlements, net		4,871			—
	Fair value, December 31, 2014	$	21,601		$	—
Schedule of amounts of assets and liabilities measured at fair value on a nonrecurring basis
	(Dollars in thousands)	Fair Value			Quoted Prices			Significant			Significant
					In Active			Other			Unobservable
					Markets			Observable			Inputs
					for Identical			Inputs			(Level 3)
					Assets			(Level 2)
					(Level 1)
	December 31, 2014:
	OREO	$	42,726		$	—		$	—		$	42,726
	Non-acquired impaired loans		12,612			—			—			12,612
	December 31, 2013:
	OREO	$	64,918		$	—		$	—		$	64,918
	Non-acquired impaired loans		13,129			—			—			13,129
Quantitative Information about Level 3 Fair Value Measurements
		Valuation Technique		Unobservable Input		General			Weighted
						Range			Average
	Nonrecurring measurements:
	Impaired loans	Discounted appraisals		Collateral discounts			0 - 25	%		5.80	%
	OREO	Discounted appraisals		Collateral discounts and estimated costs to sell			0 - 50	%		21.89	%
Schedule of estimated fair value, and related carrying amount, of the Company's financial instruments
	(Dollars in thousands)	Carrying			Fair			Level 1			Level 2		Level 3
		Amount			Value
	December 31, 2014
	Financial assets:
	Cash and cash equivalents	$	417,869		$	417,869		$	417,869		$	—	$	—
	Investment securities		826,943			827,517			13,560			813,957		—
	Loans, net of allowance for loan losses, and loans held for sale		5,680,688			5,804,951			—			60,270		5,744,681
	FDIC receivable for loss share agreements		22,161			7,150			—			—		7,150
	Accrued interest receivable		16,366			16,366			—			3,443		12,923
	Mortgage servicing rights		21,601			21,601			—			—		21,601
	Interest rate swap—non-designated hedge		172			172			—			172		—
	Other derivative financial instruments (mortgage banking related)		3,145			3,145			—			3,145		—
	Financial liabilities:
	Deposits		6,461,045			6,193,580			—			6,193,580		—
	Federal funds purchased and securities sold under agreements to repurchase		221,541			221,541			—			221,541		—
	Other borrowings		101,210			98,534			—			98,534		—
	Accrued interest payable		4,311			4,311			—			4,311		—
	Interest rate swap—cash flow hedge		856			856			—			856		—
	Interest rate swap—non-designated hedge		172			172			—			172		—
	Off balance sheet financial instruments:
	Commitments to extend credit		—			27,554			—			27,554		—
	Standby letters of credit and financial guarantees		—			—			—			—		—
	December 31, 2013
	Financial assets:
	Cash and cash equivalents	$	479,461		$	479,461		$	479,461		$	—	$	—
	Investment securities		812,603			813,068			16,828			796,240		—
	Loans, net of allowance for loan losses, and loans held for sale		5,652,458			5,742,078			—			30,586		5,711,492
	FDIC receivable for loss share agreements		86,447			48,512			—			—		48,512
	Accrued interest receivable		15,024			15,024			—			3,482		11,542
	Mortgage servicing rights		20,729			20,729			—			—		20,729
	Interest rate swap—non-designated hedge		178			178			—			178		—
	Other derivative financial instruments (mortgage banking related)		523			523			—			523		—
	Financial liabilities:
	Deposits		6,554,144			6,313,543			—			6,313,543		—
	Federal funds purchased and securities sold under agreements to repurchase		211,401			211,401			—			211,401		—
	Other borrowings		102,060			92,751			—			92,751		—
	Accrued interest payable		5,388			5,388			—			5,388		—
	Interest rate swap—cash flow hedge		914			914			—			914		—
	Interest rate swap—non-designated hedge		178			178			—			178		—
	Other derivative financial instruments (mortgage banking related)		765			765			—			765		—
	Off balance sheet financial instruments:
	Commitments to extend credit		—			15,555			—			15,555		—
	Standby letters of credit and
	financial guarantees		—			—			—			—		—

Regulatory_Matters_Tables

Regulatory Matters (Tables)	12 Months Ended
	Dec. 31, 2014
Regulatory Matters
Schedule of actual capital amounts and ratios
		Actual					Minimum Capital					Minimum To Be
							Requirement					Well Capitalized
												Under Prompt
												Corrective Action
												Provisions
	(Dollars in thousands)	Amount		Ratio			Amount		Ratio			Amount		Ratio
	December 31, 2014:
	Total risk-based capital (to risk-weighted assets):
	Consolidated	$	755,484		14.43	%	$	418,982		8.00	%		n/a		n/a
	SCBT (the Bank)		742,393		14.18	%		418,877		8.00	%		523,596		10.00	%
	Tier 1 capital (to risk-weighted assets):
	Consolidated		713,371		13.62	%		209,491		4.00	%		n/a		n/a
	SCBT (the Bank)		700,280		13.37	%		209,438		4.00	%		314,158		6.00	%
	Tier 1 capital (to average assets):
	Consolidated		713,371		9.47	%		301,363		4.00	%		n/a		n/a
	SCBT (the Bank)		700,280		9.30	%		301,162		4.00	%		376,452		5.00	%
	December 31, 2013:
	Total risk-based capital (to risk-weighted assets):
	Consolidated	$	752,781		14.47	%	$	416,151		8.00	%		n/a		n/a
	SCBT (the Bank)		741,351		14.26	%		415,904		8.00	%		519,881		10.00	%
	Tier 1 capital (to risk-weighted assets):
	Consolidated		706,531		13.58	%		208,076		4.00	%		n/a		n/a
	SCBT (the Bank)		695,102		13.37	%		207,952		4.00	%		311,928		6.00	%
	Tier 1 capital (to average assets):
	Consolidated		706,531		9.30	%		303,842		4.00	%		n/a		n/a
	SCBT (the Bank)		695,102		9.16	%		303,452		4.00	%		379,315		5.00	%

Condensed_Financial_Statements1

Condensed Financial Statements of Parent Company (Tables)	12 Months Ended
	Dec. 31, 2014
Condensed Financial Statements of Parent Company
Schedule of condensed balance sheet
		December 31,
	(Dollars in thousands)	2014			2013
	ASSETS
	Cash	$	13,185		$	11,757
	Investment securities available for sale		535			519
	Investment in subsidiaries		1,072,796			1,070,291
	Other assets		1,023			420
	Total assets	$	1,087,539		$	1,082,987
	LIABILITIES AND SHAREHOLDERS' EQUITY
	Liabilities		102,619			101,518
		$			$
	Shareholders' equity		984,920			981,469
	Total liabilities and shareholders' equity	$	1,087,539		$	1,082,987
Schedule of condensed statements of income
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Income:
	Dividends from subsidiaries	$	89,922		$	18,135		$	33,669
	Operating income		583			223			59
	Total income		90,505			18,358			33,728
	Operating expenses		12,026			7,294			2,482
	Income before income tax benefit and equity in undistributed earnings of subsidiaries		78,479			11,064			31,246
	Applicable income tax benefit		3,628			2,360			812
	Equity in undistributed earnings of subsidiary (excess distribution)		(6,670	)		35,795			(2,026	)
	Net income		75,437			49,219			30,032
	Preferred stock dividends		1,073			1,354			—
	Net income available to common shareholders	$	74,364		$	47,865		$	30,032
Schedule of condensed statements of cash flows
		Years Ended December 31,
	(Dollars in thousands)	2014			2013			2012
	Cash flows from operating activities:
	Net income	$	75,437		$	49,219		$	30,032
	Adjustments to reconcile net income to net cash provided by operating activities:
	Depreciation and amortization		339			264			—
	Share-based compensation		3,908			3,322			1,741
	Decrease (increase) in other assets		852			1,231			(83	)
	Decrease in other liabilities		(715	)		(788	)		(3,511	)
	Undistributed earnings of subsidiary		6,670			(35,795	)		2,026
	Net cash provided by operating activities		86,491			17,453			30,205
	Cash flows from investing activities:
	Net cash outlay for acquisitions		—			2,557			(12,357	)
	Proceeds from business divestitures		—			520			—
	Other, net		177			—			—
	Net cash provided by (used in) investing activities		177			3,077			(12,357	)
	Cash flows from financing activities:
	Note payable repayment		—			—			(7,155	)
	Common stock issuance		826			781			720
	Common stock repurchased		(917	)		(933	)		(836	)
	Preferred stock redeemed		(65,000	)		—			—
	Dividends paid on preferred stock		(1,073	)		(1,354	)		—
	Dividends paid on common stock		(19,785	)		(15,274	)		(10,244	)
	Stock options exercised		709			1,885			1,244
	Net cash used in financing activities		(85,240	)		(14,895	)		(16,271	)
	Net increase in cash and cash equivalents		1,428			5,635			1,577
	Cash and cash equivalents at beginning of period		11,757			6,122			4,545
	Cash and cash equivalents at end of period	$	13,185		$	11,757		$	6,122

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2014
Derivative Financial Instruments
Summary of obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
		December 31,
	(Dollars in thousands)	2014		2013
	Mortgage loan pipeline	$	67,201	$	44,678
	Expected closures		50,760		33,508
	Fair Value of mortgage loan pipeline commitments		1,454		112
	Forward commitments		57,463		36,230
	Fair value of forward commitments		1,051		296

Loan_Servicing_Mortgage_Origin1

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2014
Loan Servicing, Mortgage Origination, and Loans Held for Sale
Summary of changes in the fair value of MSRs and its offsetting hedge
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Increase/(Decrease) in fair value of MSRs	$	(1,618	)	$	1,058
	Decay of MSRs		(2,381	)		(886	)
	Gains/(Losses) related to derivatives		3,872			(681	)
	Net effect on Statements of Income	$	(127	)	$	(509	)
Schedule of analysis of the activity in the MSRs
		Years Ended
		December 31,
	(Dollars in thousands)	2014			2013
	Balance at beginning of the period	$	20,729		$	—
	Additions:
	MSRs acquired in the merger with FFHI		—			19,156
	Servicing assets that resulted from transfers of financial assets		4,871			1,401
	Increase (decrease) in fair value due to change in valuation inputs or assumptions		(1,618	)		1,058
	Decay in fair value:
	Due to increases in principal paydowns or runoff		(2,381	)		(886	)
	Balance at end of period	$	21,601		$	20,729
Schedule of characteristics and sensitivity analysis of the MSR
		December 31,
	(Dollars in thousands)	2014			2013
	Composition of residential loans serviced for others
	Fixed-rate mortgage loans		99.2	%		99	%
	Adjustable-rate mortgage loans		0.8	%		1	%
	Total		100	%		100	%
	Weighted average life		6.30 years			6.91 years
	Constant Prepayment rate (CPR)		11.4	%		10.2	%
	Weighted average discount rate		9.7	%		10.1	%
	Effect on fair value due to change in interest rates
	25 basis point increase	$	1,365		$	1,059
	50 basis point increase		2,555			1,964
	25 basis point decrease		(1,562	)		(1,248	)
	50 basis point decrease		(3,221	)		(2,255	)

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
	item
Nature of Operations
Number of unconsolidated subsidiaries	7
Trust preferred securities to be issued	$98
Maximum
Segments
Number of reportable operating segments	1
SCBT Capital Trust I
Nature of Operations
Trust preferred securities to be issued	12
SCBT Capital Trust II
Nature of Operations
Trust preferred securities to be issued	8
SCBT Capital Trust III
Nature of Operations
Trust preferred securities to be issued	20
TSB Statutory Trust I
Nature of Operations
Trust preferred securities to be issued	3
SAVB Capital Trust I
Nature of Operations
Trust preferred securities to be issued	6
SAVB Capital Trust II
Nature of Operations
Trust preferred securities to be issued	4
FFCH Capital Trust I
Nature of Operations
Trust preferred securities to be issued	$45
South Carolina
Nature of Operations
Number of counties	19
North Carolina
Nature of Operations
Number of counties	4
Northeast Georgia
Nature of Operations
Number of counties	10
Coastal Georgia
Nature of Operations
Number of counties	2

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details 2) (Loans, Concentrations of Credit Risk, USD $)	Dec. 31, 2014
In Millions, unless otherwise specified	item
Concentrations of Credit Risk
Concentration risk threshold, total risk-based capital threshold (as a percent)	25.00%
Concentration risk threshold, total risk-based capital threshold	$188.90
Number of credit concentrations for non-acquired credit impaired loans	4
Lessors of residential and buildings
Concentrations of Credit Risk
Amount loaned	301.4
Lessors of nonresidential buildings
Concentrations of Credit Risk
Amount loaned	395.1
Religious
Concentrations of Credit Risk
Amount loaned	211
Borrowers engaged in offices of physicians, dentists and other health practitioners
Concentrations of Credit Risk
Amount loaned	$249.40

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014
Cash and Cash Equivalents
Period for sale and purchase of federal funds	1 day
Loans
Past due period allowed for well-secured loans to remain on accrual basis	120 days
Past due period before which partially secured loans are to be written down to collateral value and placed on nonaccrual status	120 days
Past due period before which unsecured commercial loans are to be charged off	120 days
Past due period before which closed end consumer loans are to be charged off or to be written down to fair value of collateral value	120 days
Past due period before which open end consumer loans are to be charged off or to be written down to fair value of collateral value	180 days
Troubled Debt Restructurings (TDRs)
Minimum reasonable period for sustained repayment performance by borrower for returning nonaccrual TDRs to accruing status	6 months
Business Combinations and Method of Accounting for Loans Acquired
Allowance for loan losses on acquired loans	$0

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Minimum amount of commercial loans included in loan categories with common risk categories	1
Habersham
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	80.00%
CBT
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Minimum amount of outstanding contractual principal balances of commercial loans included in loan categories with common risk categories	1
Covered portfolio's loss share coverage percentage	95.00%
Cape Fear | Loss covered under loss share agreements upto 110 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	80.00%
Cape Fear | Minimum | Loss covered under loss share agreements over 110 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	95.00%
Cape Fear | Maximum | Loss covered under loss share agreements upto 110 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage amount	110
Plantation | Loss covered under loss share agreements upto 110 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	80.00%
Plantation | Loss covered under loss share agreements from 55 million to 65 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	0.00%
Plantation | Minimum | Loss covered under loss share agreements from 55 million to 65 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage amount	55
Plantation | Minimum | Loss covered under loss share agreements over 65 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage percentage	60.00%
Plantation | Maximum | Loss covered under loss share agreements upto 55 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage amount	55
Plantation | Maximum | Loss covered under loss share agreements from 55 million to 65 million
Business Combinations, Method of Accounting for Loans Acquired, and FDIC Indemnification Asset
Covered portfolio's loss share coverage amount	65

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014
	item
Intangible Assets
Impairment Charges	$0
Transfer of Financial Assets
Term of fixed-rate mortgage loans	30 years
Number of interest rate swaps contracts that were classified as non-designated hedges acquired through merger	2
Savannah Bancorp ("SAVB")
Transfer of Financial Assets
Number of interest rate swaps held to facilitate a risk management strategy	1
Minimum
Intangible Assets
Estimated useful lives of intangibles	2 years
Maximum
Intangible Assets
Estimated useful lives of intangibles	15 years
Core deposit intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles	7 years
Core deposit intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles	13 years
Noncompete intangibles | Minimum
Intangible Assets
Estimated useful lives of intangibles	2 years
Noncompete intangibles | Maximum
Intangible Assets
Estimated useful lives of intangibles	3 years
Client list intangibles
Intangible Assets
Estimated useful lives of intangibles	15 years

Mergers_and_Acquisitions_Detai

Mergers and Acquisitions (Details) (USD $)	12 Months Ended			0 Months Ended	5 Months Ended	0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 26, 2013	Dec. 31, 2013	Dec. 13, 2012	Dec. 13, 2013
Business Combination Recognized Identifiable Assets Acquired
Bank owned life insurance	$99,140,000	$97,197,000			$97,197,000
Deposits:
Goodwill	317,688,000	317,688,000	103,292,000		317,688,000
Consideration:
Provision for Loan Losses Expensed	6,590,000	1,886,000	13,619,000
First Financial Holdings, Inc. ("First Financial")
Business Combination Recognized Identifiable Assets Acquired
Cash and cash equivalents				174,082,000
Investment securities				311,812,000
Loans held for sale				19,864,000
Loans				2,275,682,000
Premises and equipment				76,367,000
Intangible assets				38,233,000
Mortgage servicing rights				19,156,000
Other real estate owned and repossessed assets				13,178,000
FDIC receivable for loss sharing agreement				21,713,000
Bank owned life insurance				51,020,000
Deferred tax asset				32,877,000
Other assets				45,379,000
Total assets				3,079,363,000
Deposits:
Noninterest-bearing				430,517,000
Interest-bearing				2,091,296,000
Total deposits				2,521,813,000
Other borrowings				301,713,000
Other liabilities				23,280,000
Total liabilities				2,846,806,000
Net identifiable assets acquired over (under) liabilities assumed				232,557,000
Goodwill				214,396,000
Net assets acquired over liabilities assumed				446,953,000
Consideration:
Purchase price per share of the Company's common stock (in dollars per share)				$54.34
Company common stock issued and cash exchanged for fractional shares				381,423,000
Cash paid for stock options outstanding				530,000
Assumption of preferred stock				65,000,000
Fair value of total consideration transferred				446,953,000
Merger-related expense				23,900,000
Provision for Loan Losses Expensed		6,400,000	20,100,000
Proforma amounts
Total revenues (net interest income plus noninterest income), Pro Forma		438,625,000	480,672,000		421,056,000
Net operating income available to the common shareholder		80,624,000	54,529,000		90,573,000
First Financial Holdings, Inc. ("First Financial") | Common Stock
Mergers and Acquisitions
Fixed exchange ratio for shares issued				0.4237
Consideration:
Common shares issued				7,018,274
First Financial Holdings, Inc. ("First Financial") | Preferred Stock
Mergers and Acquisitions
Fixed exchange ratio for shares issued				1
First Financial Holdings, Inc. ("First Financial") | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired
Cash and cash equivalents				174,082,000
Investment securities				313,200,000
Loans held for sale				19,858,000
Loans				2,355,527,000
Premises and equipment				82,399,000
Intangible assets				7,037,000
Mortgage servicing rights				19,156,000
Other real estate owned and repossessed assets				13,271,000
FDIC receivable for loss sharing agreement				47,459,000
Bank owned life insurance				51,513,000
Deferred tax asset				-5,279,000
Other assets				47,257,000
Total assets				3,125,480,000
Deposits:
Noninterest-bearing				430,517,000
Interest-bearing				2,083,495,000
Total deposits				2,514,012,000
Other borrowings				280,187,000
Other liabilities				25,584,000
Total liabilities				2,819,783,000
Net identifiable assets acquired over (under) liabilities assumed				305,697,000
Net assets acquired over liabilities assumed				305,697,000
First Financial Holdings, Inc. ("First Financial") | Initial Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired
Investment securities				-1,388,000
Loans held for sale				6,000
Loans				-92,720,000
Premises and equipment				-5,435,000
Intangible assets				33,738,000
Other real estate owned and repossessed assets				-2,065,000
FDIC receivable for loss sharing agreement				-18,122,000
Deferred tax asset				42,741,000
Other assets				-6,125,000
Total assets				-49,370,000
Deposits:
Interest-bearing				7,801,000
Total deposits				7,801,000
Other borrowings				21,526,000
Other liabilities				-2,059,000
Total liabilities				27,268,000
Net identifiable assets acquired over (under) liabilities assumed				-76,638,000
Goodwill				217,894,000
Net assets acquired over liabilities assumed				141,256,000
First Financial Holdings, Inc. ("First Financial") | Subsequent Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired
Loans				12,875,000
Premises and equipment				-597,000
Intangible assets				-2,542,000
Other real estate owned and repossessed assets				1,972,000
FDIC receivable for loss sharing agreement				-7,624,000
Bank owned life insurance				-493,000
Deferred tax asset				-4,585,000
Other assets				4,247,000
Total assets				3,253,000
Deposits:
Other liabilities				-245,000
Total liabilities				-245,000
Net identifiable assets acquired over (under) liabilities assumed				3,498,000
Goodwill				-3,498,000
Savannah Bancorp and FFCH
Consideration:
Merger-related expense	22,800,000
Savannah Bancorp ("SAVB")
Mergers and Acquisitions
Fixed exchange ratio for shares issued						0.2503
Business Combination Recognized Identifiable Assets Acquired
Cash and cash equivalents							86,244,000
Investment securities							74,203,000
Loans							601,359,000
Premises and equipment							10,452,000
Intangible assets							12,918,000
Other real estate owned and repossessed assets							7,106,000
Bank owned life insurance							6,705,000
Deferred tax asset							38,151,000
Other assets							5,256,000
Total assets							842,394,000
Deposits:
Noninterest-bearing							129,902,000
Interest-bearing							621,728,000
Total deposits							751,630,000
Other borrowings							30,381,000
Other liabilities							14,372,000
Total liabilities							809,874,000
Net identifiable assets acquired over (under) liabilities assumed							32,520,000
Goodwill							36,397,000
Net assets acquired over liabilities assumed							68,917,000
Savannah Bancorp ("SAVB") | Common Stock
Consideration:
Common shares issued						1,802,137
Savannah Bancorp ("SAVB") | As previously recorded by acquiree
Business Combination Recognized Identifiable Assets Acquired
Cash and cash equivalents							86,244,000
Investment securities							75,460,000
Loans							660,555,000
Premises and equipment							12,555,000
Intangible assets							3,357,000
Other real estate owned and repossessed assets							13,934,000
Bank owned life insurance							6,705,000
Deferred tax asset							-790,000
Other assets							8,497,000
Total assets							866,517,000
Deposits:
Noninterest-bearing							129,902,000
Interest-bearing							619,198,000
Total deposits							749,100,000
Other borrowings							30,613,000
Other liabilities							8,026,000
Total liabilities							801,230,000
Net identifiable assets acquired over (under) liabilities assumed							65,287,000
Net assets acquired over liabilities assumed							65,287,000
Consideration:
Common shares issued							1,802,137
Purchase price per share of the Company's common stock (in dollars per share)							$38.20
Company common stock issued and cash exchanged for fractional shares							68,854,000
Cash paid for stock options outstanding							63,000
Fair value of total consideration transferred							68,917,000
Savannah Bancorp ("SAVB") | Subsequent Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired
Investment securities							31,000
Premises and equipment							-260,000
Intangible assets							15,000
Other real estate owned and repossessed assets							-1,513,000
Deferred tax asset							-202,000
Other assets							-893,000
Total assets							-2,822,000
Deposits:
Other liabilities							-311,000
Total liabilities							-311,000
Net identifiable assets acquired over (under) liabilities assumed							-2,511,000
Goodwill							2,511,000
Savannah Bancorp ("SAVB") | Fair Value Adjustments
Business Combination Recognized Identifiable Assets Acquired
Investment securities							-1,288,000
Loans							-59,196,000
Premises and equipment							-1,843,000
Intangible assets							9,546,000
Other real estate owned and repossessed assets							-5,315,000
Deferred tax asset							39,143,000
Other assets							-2,348,000
Total assets							-21,301,000
Deposits:
Interest-bearing							2,530,000
Total deposits							2,530,000
Other borrowings							-232,000
Other liabilities							6,657,000
Total liabilities							8,955,000
Net identifiable assets acquired over (under) liabilities assumed							-30,256,000
Goodwill							33,886,000
Net assets acquired over liabilities assumed							$3,630,000

Mergers_and_Acquisitions_Detai1

Mergers and Acquisitions (Details 2) (USD $)	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 13, 2012	Dec. 13, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Asset
Bank owned life insurance			$99,140	$97,197
Deposits:
Federal funds purchased and securities sold under agreements to repurchase			221,541	211,401
Goodwill			317,688	317,688	103,292
Deposits:
Federal funds purchased and securities sold under agreements to repurchase			221,541	211,401
Goodwill			317,688	317,688	103,292
Savannah Bancorp ("SAVB")
Mergers and Acquisitions
Fixed exchange ratio for shares issued (as a percent)	0.2503
Asset
Cash and cash equivalents		86,244
Investment securities		74,203
Loans		601,359
Premises and equipment		10,452
Intangible assets		12,918
Other real estate owned and repossessed assets		7,106
Bank owned life insurance		6,705
Deferred tax asset		38,151
Other assets		5,256
Total assets		842,394
Deposits:
Noninterest-bearing		129,902
Interest-bearing		621,728
Total deposits		751,630
Federal funds purchased and securities sold under agreements to repurchase		13,491
Other borrowings		30,381
Other liabilities		14,372
Total liabilities		809,874
Net identifiable assets acquired over (under) liabilities assumed		32,520
Goodwill		36,397
Net assets acquired over liabilities assumed		68,917
Deposits:
Noninterest-bearing		129,902
Interest-bearing		621,728
Total deposits		751,630
Federal funds purchased and securities sold under agreements to repurchase		13,491
Other borrowings		30,381
Other liabilities		14,372
Total liabilities		809,874
Net identifiable assets acquired over (under) liabilities assumed		32,520
Goodwill		36,397
Net assets acquired over liabilities assumed		68,917
Savannah Bancorp ("SAVB") | Common Stock
Consideration:
Common shares issued	1,802,137
Savannah Bancorp ("SAVB") | As previously recorded by acquiree
Asset
Cash and cash equivalents		86,244
Investment securities		75,460
Loans		660,555
Premises and equipment		12,555
Intangible assets		3,357
Other real estate owned and repossessed assets		13,934
Bank owned life insurance		6,705
Deferred tax asset		-790
Other assets		8,497
Total assets		866,517
Deposits:
Noninterest-bearing		129,902
Interest-bearing		619,198
Total deposits		749,100
Federal funds purchased and securities sold under agreements to repurchase		13,491
Other borrowings		30,613
Other liabilities		8,026
Total liabilities		801,230
Net identifiable assets acquired over (under) liabilities assumed		65,287
Net assets acquired over liabilities assumed		65,287
Deposits:
Noninterest-bearing		129,902
Interest-bearing		619,198
Total deposits		749,100
Federal funds purchased and securities sold under agreements to repurchase		13,491
Other borrowings		30,613
Other liabilities		8,026
Total liabilities		801,230
Net identifiable assets acquired over (under) liabilities assumed		65,287
Net assets acquired over liabilities assumed		65,287
Consideration:
Common shares issued		1,802,137
Purchase price per share of the Company's common stock (in dollars per share)		$38.20
Company common stock issued and cash exchanged for fractional shares		68,854
Cash paid for stock options outstanding		63
Fair value of total consideration transferred		68,917
Savannah Bancorp ("SAVB") | Fair Value Adjustments
Asset
Investment securities		-1,288
Loans		-59,196
Premises and equipment		-1,843
Intangible assets		9,546
Other real estate owned and repossessed assets		-5,315
Deferred tax asset		39,143
Other assets		-2,348
Total assets		-21,301
Deposits:
Interest-bearing		2,530
Total deposits		2,530
Other borrowings		-232
Other liabilities		6,657
Total liabilities		8,955
Net identifiable assets acquired over (under) liabilities assumed		-30,256
Goodwill		33,886
Net assets acquired over liabilities assumed		3,630
Deposits:
Interest-bearing		2,530
Total deposits		2,530
Other borrowings		-232
Other liabilities		6,657
Total liabilities		8,955
Net identifiable assets acquired over (under) liabilities assumed		-30,256
Goodwill		33,886
Net assets acquired over liabilities assumed		3,630
Savannah Bancorp ("SAVB") | Subsequent Fair Value Adjustments
Asset
Investment securities		31
Premises and equipment		-260
Intangible assets		15
Other real estate owned and repossessed assets		-1,513
Deferred tax asset		-202
Other assets		-893
Total assets		-2,822
Deposits:
Other liabilities		-311
Total liabilities		-311
Net identifiable assets acquired over (under) liabilities assumed		-2,511
Goodwill		2,511
Deposits:
Other liabilities		-311
Total liabilities		-311
Net identifiable assets acquired over (under) liabilities assumed		-2,511
Goodwill		$2,511

Mergers_and_Acquisitions_Detai2

Mergers and Acquisitions (Details 3) (USD $)	0 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 24, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Asset
Bank owned life insurance		$99,140	$97,197
Deposits:
Federal funds purchased and securities sold under agreements to repurchase		221,541	211,401
Goodwill		317,688	317,688	103,292
Peoples
Asset
Cash and cash equivalents	24,459
Investment securities	175,892
Loans	234,245
Premises and equipment	13,296
Intangible assets	2,930
Other real estate owned and repossessed assets	8,104
Deferred tax asset	16,568
Other assets	16,705
Total assets	492,199
Deposits:
Noninterest-bearing	54,884
Interest-bearing	380,186
Total deposits	435,070
Other borrowings	9,542
Other liabilities	7,045
Total liabilities	451,657
Net identifiable assets acquired over (under) liabilities assumed	40,542
Goodwill	4,007
Net assets acquired over liabilities assumed	44,549
Peoples | Common Stock
Mergers and Acquisitions
Number of shares of common stock issued per share	0.1413
Consideration:
Common shares issued	1,002,741
Peoples | As previously recorded by acquiree
Asset
Cash and cash equivalents	24,459
Investment securities	176,334
Loans	262,858
Premises and equipment	10,094
Other real estate owned and repossessed assets	13,257
Deferred tax asset	4,702
Other assets	17,588
Total assets	509,292
Deposits:
Noninterest-bearing	54,884
Interest-bearing	378,781
Total deposits	433,665
Other borrowings	9,542
Other liabilities	4,291
Total liabilities	447,498
Net identifiable assets acquired over (under) liabilities assumed	61,794
Net assets acquired over liabilities assumed	61,794
Consideration:
Common shares issued	1,002,741
Purchase price per share of the Company's common stock (in dollars per share)	31.06
Company common stock issued and cash exchanged for fractional shares	31,160
Cash paid for stock options outstanding	96
Cash paid for TARP preferred stock	13,293
Fair value of total consideration transferred	44,549
Peoples | Initial Fair Value Adjustments
Asset
Investment securities	-442
Loans	-28,613
Premises and equipment	3,240
Intangible assets	2,930
Other real estate owned and repossessed assets	-5,341
Deferred tax asset	11,669
Other assets	-883
Total assets	-17,440
Deposits:
Interest-bearing	1,405
Total deposits	1,405
Other liabilities	2,054
Total liabilities	3,459
Net identifiable assets acquired over (under) liabilities assumed	-20,899
Goodwill	3,654
Net assets acquired over liabilities assumed	-17,245
Peoples | Subsequent Fair Value Adjustments
Asset
Premises and equipment	-38
Other real estate owned and repossessed assets	188
Deferred tax asset	197
Total assets	347
Deposits:
Other liabilities	700
Total liabilities	700
Net identifiable assets acquired over (under) liabilities assumed	-353
Goodwill	353

Investment_Securities_Details

Investment Securities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investment securities held to maturity
Amortized Cost	$9,659	$12,426
Fair Value	10,233	12,891
State and municipal obligations
Investment securities held to maturity
Amortized Cost	9,659	12,426
Gross Unrealized Gains	574	480
Gross Unrealized Losses		-15
Fair Value	$10,233	$12,891

Investment_Securities_Details_

Investment Securities (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investment securities available for sale
Amortized Cost	$797,930	$795,803
Gross Unrealized Gains	12,477	7,015
Gross Unrealized Losses	-3,641	-16,027
Fair Value	806,766	786,791
Government-sponsored entities debt
Investment securities available for sale
Amortized Cost	149,720	149,708
Gross Unrealized Gains	191	185
Gross Unrealized Losses	-1,714	-6,899
Fair Value	148,197	142,994
State and municipal obligations
Investment securities available for sale
Amortized Cost	133,635	142,934
Gross Unrealized Gains	4,141	1,798
Gross Unrealized Losses	-195	-4,081
Fair Value	137,581	140,651
Mortgage-backed securities.
Investment securities available for sale
Amortized Cost	511,414	500,000
Gross Unrealized Gains	7,572	4,394
Gross Unrealized Losses	-1,040	-4,915
Fair Value	517,946	499,479
Common Stock
Investment securities available for sale
Amortized Cost	3,161	3,161
Gross Unrealized Gains	573	638
Gross Unrealized Losses	-692	-132
Fair Value	$3,042	$3,667

Investment_Securities_Details_1

Investment Securities (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other investment securities
Amortized Cost	$10,518	$13,386
Fair Value	10,518	13,386
Amortized Cost
Due after one year through five years	986
Due after five years through ten years	8,673
Total	9,659	12,426
Fair Value
Due after one year through five years	1,007
Due after five years through ten years	9,226
Fair Value	10,233	12,891
Amortized Cost
Due in one year or less	5,635
Due after one year through five years	45,013
Due after five years through ten years	221,752
Due after ten years	525,530
Total	797,930	795,803
Fair Value
Due in one year or less	5,681
Due after one year through five years	45,186
Due after five years through ten years	224,690
Due after ten years	531,209
Fair Value	806,766	786,791
Information with respect to sales of Held to Maturity
Sale proceeds	411
Gross realized losses	-90
Net realized loss	-90
Information with respect to sales of available-for-sale securities
Sale proceeds	9,315	177,468	29,301
Gross realized gains	115		193
Gross realized losses	-27		-4
Net realized gain	-2		189
Federal Home Loan Bank stock
Other investment securities
Amortized Cost	7,484	10,352
Fair Value	7,484	10,352
Investment in unconsolidated subsidiaries
Other investment securities
Amortized Cost	3,034	3,034
Fair Value	$3,034	$3,034

Investment_Securities_Details_2

Investment Securities (Details 4) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	item
Investment Securities
Number of securities with gross unrealized loss	66
Securities Held to Maturity, Gross Unrealized Losses
Less Than Twelve Months		$15
Securities Held to Maturity, Fair Value
Less Than Twelve Months		486
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	367	15,806
Twelve Months or More	3,274	221
Securities Available for Sale, Fair Value
Less Than Twelve Months	85,848	464,627
Twelve Months or More	148,565	6,025
State and municipal obligations
Securities Held to Maturity, Gross Unrealized Losses
Less Than Twelve Months		15
Securities Held to Maturity, Fair Value
Less Than Twelve Months		486
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	3	3,901
Twelve Months or More	192	180
Securities Available for Sale, Fair Value
Less Than Twelve Months	1,444	87,060
Twelve Months or More	8,269	3,900
Government-sponsored entities debt
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	98	6,899
Twelve Months or More	1,616
Securities Available for Sale, Fair Value
Less Than Twelve Months	22,896	112,085
Twelve Months or More	82,798
Mortgage-backed securities.
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months	266	4,874
Twelve Months or More	774	41
Securities Available for Sale, Fair Value
Less Than Twelve Months	61,508	263,383
Twelve Months or More	55,960	2,125
Common Stock
Securities Available for Sale, Gross Unrealized Losses
Less Than Twelve Months		132
Twelve Months or More	692
Securities Available for Sale, Fair Value
Less Than Twelve Months		2,099
Twelve Months or More	$1,538

Investment_Securities_Details_3

Investment Securities (Details 5) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Investment Securities
Carrying value of investment securities pledged to secure public funds deposits and for other purposes required and permitted by law	$273.20	$261.70
Carrying amount of the securities pledged to collateralize repurchase agreements	$160.90	$163.20

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loans and Allowance for Loan Losses
Deferred fees	$2,100,000	$800,000
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,467,826,000	2,865,216,000	2,571,003,000
Less allowance for loan losses	-34,539,000	-34,331,000	-44,378,000	-49,367,000
Loans, net	3,433,287,000	2,830,885,000
Non-acquired loans | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	697,811,000	591,122,000
Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	364,221,000	299,951,000	273,420,000
Less allowance for loan losses	-5,666,000	-6,789,000	-10,836,000	-12,373,000
Non-acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total loans	333,590,000	291,171,000	290,071,000
Less allowance for loan losses	-3,154,000	-3,677,000	-4,921,000	-6,109,000
Non-acquired loans | Consumer real estate
Loans and Allowance for Loan Losses
Total loans	1,070,712,000	805,309,000
Non-acquired loans | Consumer owner occupied
Loans and Allowance for Loan Losses
Total loans	786,778,000	548,170,000	434,503,000
Less allowance for loan losses	-6,866,000	-6,069,000	-6,568,000	-7,453,000
Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	283,934,000	257,139,000	255,284,000
Less allowance for loan losses	-2,829,000	-2,782,000	-3,626,000	-4,269,000
Non-acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	907,913,000	833,513,000	784,152,000
Less allowance for loan losses	-8,415,000	-7,767,000	-8,743,000	-10,356,000
Non-acquired loans | Commercial and industrial
Loans and Allowance for Loan Losses
Total loans	405,923,000	321,824,000	279,763,000
Less allowance for loan losses	-3,561,000	-3,592,000	-4,939,000	-3,901,000
Non-acquired loans | Other income producing property
Loans and Allowance for Loan Losses
Total loans	150,928,000	143,204,000	133,713,000
Less allowance for loan losses	-2,232,000	-2,509,000	-3,747,000	-3,636,000
Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	189,317,000	136,410,000	86,934,000
Less allowance for loan losses	-1,367,000	-937,000	-781,000	-1,145,000
Non-acquired loans | Other Loans
Loans and Allowance for Loan Losses
Total loans	45,222,000	33,834,000	33,163,000
Less allowance for loan losses	($449,000)	($209,000)	($217,000)	($125,000)

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loans and Allowance for Loan Losses
Less allowance for loan losses	$0
Non-Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans		1,600,935,000
Acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	24,099,000	58,396,000
Acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	49,476,000	58,598,000
Acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	62,065,000	73,714,000
Acquired loans | Non-Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans	1,327,999,000	1,600,935,000
Acquired loans | Non-Credit impaired | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	73,575,000
Acquired loans | Non-Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	24,099,000	58,396,000
Acquired loans | Non-Credit impaired | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	49,476,000	58,598,000
Acquired loans | Non-Credit impaired | Consumer real estate
Loans and Allowance for Loan Losses
Total acquired loans	881,324,000	1,009,631,000
Acquired loans | Non-Credit impaired | Consumer owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	646,375,000	745,481,000
Acquired loans | Non-Credit impaired | Home equity loans
Loans and Allowance for Loan Losses
Total acquired loans	234,949,000	264,150,000
Acquired loans | Non-Credit impaired | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	62,065,000	73,714,000
Acquired loans | Non-Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
Total acquired loans	41,130,000	58,773,000
Acquired loans | Non-Credit impaired | Other income producing property
Loans and Allowance for Loan Losses
Total acquired loans	65,139,000	74,566,000
Acquired loans | Non-Credit impaired | Consumer
Loans and Allowance for Loan Losses
Total acquired loans	204,766,000	267,257,000
Acquired loans | Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans	926,767,000	1,232,256,000
Less allowance for loan losses	-7,365,000	-11,618,000
Acquired loans, net	919,402,000	1,220,638,000	969,395,000	370,581,000
Acquired loans | Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	65,262,000	114,126,000
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT
Loans and Allowance for Loan Losses
Total acquired loans	15,813,000	24,109,000
Acquired loans | Credit impaired | Commercial real estate
Loans and Allowance for Loan Losses
Total acquired loans	325,109,000	439,785,000
Acquired loans | Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
Total acquired loans	44,804,000	68,862,000
Acquired loans | Credit impaired | Residential real estate
Loans and Allowance for Loan Losses
Total acquired loans	390,244,000	481,247,000
Acquired loans | Credit impaired | Consumer
Loans and Allowance for Loan Losses
Total acquired loans	85,449,000	103,998,000
Acquired loans | Credit impaired | Single pay
Loans and Allowance for Loan Losses
Total acquired loans	$86,000	$129,000

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses (Details 3) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Jul. 26, 2013	Dec. 13, 2012	Apr. 24, 2012
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Allowance for loan losses on acquired loans	$0
Non-Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Total acquired loans		1,600,935,000
Acquired loans | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest	1,337,703,000	1,727,417,000
Non-accretable difference	-104,110,000	-193,645,000
Cash flows expected to be collected	1,233,593,000	1,533,772,000
Accretable difference	-306,826,000	-301,516,000
Total acquired loans	926,767,000	1,232,256,000
Allowance for loan losses on acquired loans	-7,365,000	-11,618,000
Acquired loans | Non-Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Total acquired loans	1,327,999,000	1,600,935,000
Acquired loans | First Financial Holdings, Inc. ("First Financial")
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			900,439,000
Non-accretable difference			-121,974,000
Cash flows expected to be collected			778,465,000
Accretable difference			-181,956,000
Total acquired loans			596,509,000
Acquired loans | Savannah Bancorp ("SAVB")
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest				638,875,000
Non-accretable difference				-46,952,000
Cash flows expected to be collected				591,923,000
Accretable difference				-60,081,000
Total acquired loans				531,842,000
Acquired loans | Peoples | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest					306,963,000
Non-accretable difference					-37,797,000
Cash flows expected to be collected					269,166,000
Accretable difference					-34,921,000
Total acquired loans					234,245,000
Acquired loans | Loans Impaired at Acquisition | First Financial Holdings, Inc. ("First Financial") | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			662,273,000
Non-accretable difference			-110,069,000
Cash flows expected to be collected			552,204,000
Accretable difference			-129,834,000
Total acquired loans			422,370,000
Acquired loans | Loans Impaired at Acquisition | Savannah Bancorp ("SAVB") | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest				155,582,000
Non-accretable difference				-37,492,000
Cash flows expected to be collected				118,090,000
Accretable difference				-8,615,000
Total acquired loans				109,475,000
Acquired loans | Loans Impaired at Acquisition | Peoples | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest					56,940,000
Non-accretable difference					-21,237,000
Cash flows expected to be collected					35,703,000
Accretable difference					-4,968,000
Total acquired loans					30,735,000
Acquired loans | Loans Not Impaired at Acquisition | First Financial Holdings, Inc. ("First Financial") | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest			238,166,000
Non-accretable difference			-11,905,000
Cash flows expected to be collected			226,261,000
Accretable difference			-52,122,000
Total acquired loans			174,139,000
Acquired loans | Loans Not Impaired at Acquisition | Savannah Bancorp ("SAVB") | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest				483,293,000
Non-accretable difference				-9,460,000
Cash flows expected to be collected				473,833,000
Accretable difference				-51,466,000
Total acquired loans				422,367,000
Acquired loans | Loans Not Impaired at Acquisition | Peoples | Credit impaired
Contractual loan payments receivable, estimates of amounts not expected to be collected, other fair value adjustments and the resulting fair values of acquired loans
Contractual principal and interest					250,023,000
Non-accretable difference					-16,560,000
Cash flows expected to be collected					233,463,000
Accretable difference					-29,953,000
Total acquired loans					$203,510,000

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses (Details 4) (Acquired loans, Credit impaired, USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in the carrying value of acquired loans at the acquisition date
Balance at the beginning of the period	$1,220,638,000	$969,395,000	$370,581,000
Fair value of acquired loans		596,509,000	766,087,000
Net reductions for payments, foreclosures, and accretion	-299,329,000	-344,348,000	-166,761,000
Change in the allowance for loan losses on acquired loans	-1,907,000	-918,000	-512,000
Balance at the end of the period	919,402,000	1,220,638,000	969,395,000
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Balance at beginning of period	301,516,000	160,849,000	94,600,000
Interest income	-105,254,000	-104,705,000	-52,628,000
Reclass of nonaccretable difference due to improvement in expected cash flows	112,316,000	71,136,000	35,739,000
Other changes, net	-1,752,000	-7,720,000	-11,864,000
Balance at end of period	306,826,000	301,516,000	160,849,000
Threshold limit of loans for risk assessment by loan officers	25,000
Previous threshold limit of loans for risk assessment by loan officers	500,000
First Financial Holdings, Inc. ("First Financial")
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Addition from acquisition		181,956,000
Peoples
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Addition from acquisition			34,921,000
Savannah Bancorp ("SAVB")
Changes in the carrying amount of accretable difference for acquired impaired and non-impaired loans
Addition from acquisition			$60,081,000

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Changes in allowance for loan losses
Balance at beginning of period	$45,949	$61,596	$72,974
Loans charged-off	-9,047	-15,289	-21,930
Recoveries of loans previously charged off	3,178	4,224	3,756
Net charge-offs	-5,869	-11,065	-18,174
Provision for loan losses	4,170	100	13,697
Benefit attributable to FDIC loss share agreements	2,420	1,786	-78
Total provision for loan losses charged to operations	6,590	1,886	13,619
Provision for loan losses recorded through the FDIC loss share receivable	-2,420	-1,786	78
Reduction due to loan removals	-2,346	-4,682	-6,901
Balance at end of period	41,904	45,949	61,596
Non-acquired loans
Changes in allowance for loan losses
Balance at beginning of period	34,331	44,378	49,367
Loans charged-off	-7,516	-15,289	-21,930
Recoveries of loans previously charged off	2,574	4,224	3,756
Net charge-offs	-4,942	-11,065	-18,174
Provision for loan losses	5,150	1,018	13,185
Total provision for loan losses charged to operations	5,150	1,018	13,185
Balance at end of period	34,539	34,331	44,378
Acquired loans
Changes in allowance for loan losses
Loans charged-off	-1,531
Recoveries of loans previously charged off	604
Total provision for loan losses charged to operations	927
Acquired loans | Credit impaired
Changes in allowance for loan losses
Balance at beginning of period	11,618	17,218	23,607
Provision for loan losses	-1,907	-918	512
Benefit attributable to FDIC loss share agreements	2,420	1,786	-78
Total provision for loan losses charged to operations	513	868	434
Provision for loan losses recorded through the FDIC loss share receivable	-2,420	-1,786	78
Reduction due to loan removals	-2,346	-4,682	-6,901
Balance at end of period	7,365	11,618	17,218
Acquired loans | Non-Credit impaired
Changes in allowance for loan losses
Loans charged-off	-1,531
Recoveries of loans previously charged off	604
Net charge-offs	-927
Provision for loan losses	927
Total provision for loan losses charged to operations	$927

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses (Details 6) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for loan losses:
Charge-offs	($9,047)	($15,289)	($21,930)
Recoveries	3,178	4,224	3,756
Provision (benefit)	6,590	1,886	13,619
Non-acquired loans
Allowance for loan losses:
Balance at beginning of period	34,331	44,378	49,367
Charge-offs	-7,516	-15,289	-21,930
Recoveries	2,574	4,224	3,756
Provision (benefit)	5,150	1,018	13,185
Balance at end of period	34,539	34,331	44,378
Loans individually evaluated for impairment	1,558	1,631	4,879
Loans collectively evaluated for impairment	32,981	32,700	39,499
Loans:
Loans individually evaluated for impairment	27,085	26,047	47,235
Loans collectively evaluated for impairment	3,440,741	2,839,169	2,523,768
Total loans	3,467,826	2,865,216	2,571,003
Non-acquired loans | Construction and land development
Allowance for loan losses:
Balance at beginning of period	6,789	10,836	12,373
Charge-offs	-237	-4,656	-8,454
Recoveries	421	1,395	1,428
Provision (benefit)	-1,307	-786	5,489
Balance at end of period	5,666	6,789	10,836
Loans individually evaluated for impairment	475	704	1,573
Loans collectively evaluated for impairment	5,191	6,085	9,263
Loans:
Loans individually evaluated for impairment	4,852	5,739	13,549
Loans collectively evaluated for impairment	359,369	294,212	259,871
Total loans	364,221	299,951	273,420
Non-acquired loans | Commercial non-owner occupied
Allowance for loan losses:
Balance at beginning of period	3,677	4,921	6,109
Charge-offs	-442	-660	-2,348
Recoveries	390	353	282
Provision (benefit)	-471	-937	878
Balance at end of period	3,154	3,677	4,921
Loans individually evaluated for impairment	77		411
Loans collectively evaluated for impairment	3,077	3,677	4,510
Loans:
Loans individually evaluated for impairment	3,610	2,681	5,344
Loans collectively evaluated for impairment	329,980	288,490	284,727
Total loans	333,590	291,171	290,071
Non-acquired loans | Commercial owner occupied real estate
Allowance for loan losses:
Balance at beginning of period	7,767	8,743	10,356
Charge-offs	-531	-2,695	-2,781
Recoveries	95	41	5
Provision (benefit)	1,084	1,678	1,163
Balance at end of period	8,415	7,767	8,743
Loans individually evaluated for impairment	172	10	648
Loans collectively evaluated for impairment	8,243	7,757	8,095
Loans:
Loans individually evaluated for impairment	9,160	11,560	20,212
Loans collectively evaluated for impairment	898,753	821,953	763,940
Total loans	907,913	833,513	784,152
Non-acquired loans | Consumer owner occupied
Allowance for loan losses:
Balance at beginning of period	6,069	6,568	7,453
Charge-offs	-382	-1,462	-1,850
Recoveries	271	633	124
Provision (benefit)	908	330	841
Balance at end of period	6,866	6,069	6,568
Loans individually evaluated for impairment	144	271	213
Loans collectively evaluated for impairment	6,722	5,798	6,355
Loans:
Loans individually evaluated for impairment	2,966	3,013	1,954
Loans collectively evaluated for impairment	783,812	545,157	432,549
Total loans	786,778	548,170	434,503
Non-acquired loans | Home equity loans
Allowance for loan losses:
Balance at beginning of period	2,782	3,626	4,269
Charge-offs	-1,000	-1,219	-1,394
Recoveries	69	228	600
Provision (benefit)	978	147	151
Balance at end of period	2,829	2,782	3,626
Loans individually evaluated for impairment	1
Loans collectively evaluated for impairment	2,828	2,782	3,626
Loans:
Loans individually evaluated for impairment	31
Loans collectively evaluated for impairment	283,903	257,139	255,284
Total loans	283,934	257,139	255,284
Non-acquired loans | Commercial and industrial
Allowance for loan losses:
Balance at beginning of period	3,592	4,939	3,901
Charge-offs	-1,114	-1,329	-2,033
Recoveries	264	514	228
Provision (benefit)	819	-532	2,843
Balance at end of period	3,561	3,592	4,939
Loans individually evaluated for impairment	41		1,030
Loans collectively evaluated for impairment	3,520	3,592	3,909
Loans:
Loans individually evaluated for impairment	908	405	1,783
Loans collectively evaluated for impairment	405,015	321,419	277,980
Total loans	405,923	321,824	279,763
Non-acquired loans | Other income producing property
Allowance for loan losses:
Balance at beginning of period	2,509	3,747	3,636
Charge-offs	-309	-816	-924
Recoveries	191	224	361
Provision (benefit)	-159	-646	674
Balance at end of period	2,232	2,509	3,747
Loans individually evaluated for impairment	646	646	1,004
Loans collectively evaluated for impairment	1,586	1,863	2,743
Loans:
Loans individually evaluated for impairment	5,498	2,649	4,393
Loans collectively evaluated for impairment	145,430	140,555	129,320
Total loans	150,928	143,204	133,713
Non-acquired loans | Consumer
Allowance for loan losses:
Balance at beginning of period	937	781	1,145
Charge-offs	-3,501	-2,452	-2,146
Recoveries	873	836	728
Provision (benefit)	3,058	1,772	1,054
Balance at end of period	1,367	937	781
Loans individually evaluated for impairment	2
Loans collectively evaluated for impairment	1,365	937	781
Loans:
Loans individually evaluated for impairment	60
Loans collectively evaluated for impairment	189,257	136,410	86,934
Total loans	189,317	136,410	86,934
Non-acquired loans | Other Loans
Allowance for loan losses:
Balance at beginning of period	209	217	125
Provision (benefit)	240	-8	92
Balance at end of period	449	209	217
Loans collectively evaluated for impairment	449	209	217
Loans:
Loans collectively evaluated for impairment	45,222	33,834	33,163
Total loans	45,222	33,834	33,163
Acquired loans
Allowance for loan losses:
Charge-offs	-1,531
Recoveries	604
Provision (benefit)	927
Loans:
Loans collectively evaluated for impairment	1,327,999
Total loans	1,327,999
Acquired loans | Construction and land development
Allowance for loan losses:
Charge-offs	-78
Recoveries	1
Provision (benefit)	77
Loans:
Loans collectively evaluated for impairment	24,099
Total loans	24,099
Acquired loans | Commercial non-owner occupied
Allowance for loan losses:
Charge-offs	-72
Provision (benefit)	72
Loans:
Loans collectively evaluated for impairment	49,476
Total loans	49,476
Acquired loans | Commercial owner occupied real estate
Loans:
Loans collectively evaluated for impairment	62,065
Total loans	62,065
Acquired loans | Consumer owner occupied
Allowance for loan losses:
Charge-offs	-150
Recoveries	20
Provision (benefit)	130
Loans:
Loans collectively evaluated for impairment	646,375
Total loans	646,375
Acquired loans | Home equity loans
Allowance for loan losses:
Charge-offs	-530
Recoveries	262
Provision (benefit)	268
Loans:
Loans collectively evaluated for impairment	234,949
Total loans	234,949
Acquired loans | Commercial and industrial
Allowance for loan losses:
Charge-offs	-456
Recoveries	312
Provision (benefit)	144
Loans:
Loans collectively evaluated for impairment	41,130
Total loans	41,130
Acquired loans | Other income producing property
Allowance for loan losses:
Charge-offs	-14
Provision (benefit)	14
Loans:
Loans collectively evaluated for impairment	65,139
Total loans	65,139
Acquired loans | Consumer
Allowance for loan losses:
Charge-offs	-231
Recoveries	9
Provision (benefit)	222
Loans:
Loans collectively evaluated for impairment	204,766
Total loans	$204,766

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses (Details 7) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for loan losses:
Provision for loan losses	$4,170,000	$100,000	$13,697,000
Benefit attributable to FDIC loss share agreements	2,420,000	1,786,000	-78,000
Total provision for loan losses charged to operations	6,590,000	1,886,000	13,619,000
Provision for loan losses recorded through the FDIC loss share receivable	-2,420,000	-1,786,000	78,000
Reduction due to loan removals	-2,346,000	-4,682,000	-6,901,000
Balance at the end of the period	0
Credit impaired
Allowance for loan losses:
Balance at the beginning of the period	11,618,000	17,218,000	23,607,000
Provision for loan losses	-1,907,000	-918,000	512,000
Benefit attributable to FDIC loss share agreements	2,420,000	1,786,000	-78,000
Total provision for loan losses charged to operations	513,000	868,000	434,000
Provision for loan losses recorded through the FDIC loss share receivable	-2,420,000	-1,786,000	78,000
Reduction due to loan removals	-2,346,000	-4,682,000	-6,901,000
Balance at the end of the period	7,365,000	11,618,000	17,218,000
Loans collectively evaluated for impairment	7,365,000	11,618,000	17,218,000
Loans:
Loans collectively evaluated for impairment	926,767,000	1,232,256,000	986,613,000
Total acquired loans	926,767,000	1,232,256,000	986,613,000
Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT
Allowance for loan losses:
Balance at the beginning of the period	303,000	5,337,000	12,417,000
Provision for loan losses	-129,000	-3,109,000	-1,298,000
Benefit attributable to FDIC loss share agreements	183,000	2,934,000	1,233,000
Total provision for loan losses charged to operations	54,000	-175,000	-65,000
Provision for loan losses recorded through the FDIC loss share receivable	-183,000	-2,934,000	-1,233,000
Reduction due to loan removals	-39,000	-1,925,000	-5,782,000
Balance at the end of the period	135,000	303,000	5,337,000
Loans collectively evaluated for impairment	135,000	303,000	5,337,000
Loans:
Loans collectively evaluated for impairment	15,813,000	24,109,000	39,661,000
Total acquired loans	15,813,000	24,109,000	39,661,000
Credit impaired | Commercial real estate
Allowance for loan losses:
Balance at the beginning of the period	1,816,000	1,517,000	1,318,000
Provision for loan losses	-328,000	299,000	199,000
Benefit attributable to FDIC loss share agreements	364,000	-456,000	-30,000
Total provision for loan losses charged to operations	36,000	-157,000	169,000
Provision for loan losses recorded through the FDIC loss share receivable	-364,000	456,000	30,000
Reduction due to loan removals	-44,000
Balance at the end of the period	1,444,000	1,816,000	1,517,000
Loans collectively evaluated for impairment	1,444,000	1,816,000	1,517,000
Loans:
Loans collectively evaluated for impairment	325,109,000	439,785,000	372,924,000
Total acquired loans	325,109,000	439,785,000	372,924,000
Credit impaired | Construction and land development
Allowance for loan losses:
Balance at the beginning of the period	2,244,000	1,628,000
Provision for loan losses	-621,000	2,347,000	1,628,000
Benefit attributable to FDIC loss share agreements	792,000	-1,645,000	-1,319,000
Total provision for loan losses charged to operations	171,000	702,000	309,000
Provision for loan losses recorded through the FDIC loss share receivable	-792,000	1,645,000	1,319,000
Reduction due to loan removals	-1,287,000	-1,731,000
Balance at the end of the period	336,000	2,244,000	1,628,000
Loans collectively evaluated for impairment	336,000	2,244,000	1,628,000
Loans:
Loans collectively evaluated for impairment	65,262,000	114,126,000	130,451,000
Total acquired loans	65,262,000	114,126,000	130,451,000
Credit impaired | Residential real estate
Allowance for loan losses:
Balance at the beginning of the period	5,132,000	4,207,000	5,332,000
Provision for loan losses	-406,000	1,057,000	-855,000
Benefit attributable to FDIC loss share agreements	571,000	-520,000	813,000
Total provision for loan losses charged to operations	165,000	537,000	-42,000
Provision for loan losses recorded through the FDIC loss share receivable	-571,000	520,000	-813,000
Reduction due to loan removals	-339,000	-132,000	-270,000
Balance at the end of the period	4,387,000	5,132,000	4,207,000
Loans collectively evaluated for impairment	4,387,000	5,132,000	4,207,000
Loans:
Loans collectively evaluated for impairment	390,244,000	481,247,000	354,718,000
Total acquired loans	390,244,000	481,247,000	354,718,000
Credit impaired | Consumer
Allowance for loan losses:
Balance at the beginning of the period	538,000	96,000
Provision for loan losses	-111,000	442,000	96,000
Benefit attributable to FDIC loss share agreements	141,000	-412,000	-88,000
Total provision for loan losses charged to operations	30,000	30,000	8,000
Provision for loan losses recorded through the FDIC loss share receivable	-141,000	412,000	88,000
Reduction due to loan removals	-152,000
Balance at the end of the period	275,000	538,000	96,000
Loans collectively evaluated for impairment	275,000	538,000	96,000
Loans:
Loans collectively evaluated for impairment	85,449,000	103,998,000	15,685,000
Total acquired loans	85,449,000	103,998,000	15,685,000
Credit impaired | Commercial and industrial
Allowance for loan losses:
Balance at the beginning of the period	1,481,000	4,139,000	4,564,000
Provision for loan losses	-314,000	-1,786,000	-259,000
Benefit attributable to FDIC loss share agreements	371,000	1,719,000	264,000
Total provision for loan losses charged to operations	57,000	-67,000	5,000
Provision for loan losses recorded through the FDIC loss share receivable	-371,000	-1,719,000	-264,000
Reduction due to loan removals	-449,000	-872,000	-166,000
Balance at the end of the period	718,000	1,481,000	4,139,000
Loans collectively evaluated for impairment	718,000	1,481,000	4,139,000
Loans:
Loans collectively evaluated for impairment	44,804,000	68,862,000	72,718,000
Total acquired loans	44,804,000	68,862,000	72,718,000
Credit impaired | Single pay
Allowance for loan losses:
Balance at the beginning of the period	104,000	294,000	-24,000
Provision for loan losses	2,000	-168,000	1,001,000
Benefit attributable to FDIC loss share agreements	-2,000	166,000	-951,000
Total provision for loan losses charged to operations		-2,000	50,000
Provision for loan losses recorded through the FDIC loss share receivable	2,000	-166,000	951,000
Reduction due to loan removals	-36,000	-22,000	-683,000
Balance at the end of the period	70,000	104,000	294,000
Loans collectively evaluated for impairment	70,000	104,000	294,000
Loans:
Loans collectively evaluated for impairment	86,000	129,000	456,000
Total acquired loans	86,000	129,000	456,000
Acquired loans
Allowance for loan losses:
Total provision for loan losses charged to operations	927,000
Loans:
Loans collectively evaluated for impairment	1,327,999,000
Acquired loans | Construction and land development
Allowance for loan losses:
Total provision for loan losses charged to operations	77,000
Loans:
Loans collectively evaluated for impairment	24,099,000
Acquired loans | Consumer
Allowance for loan losses:
Total provision for loan losses charged to operations	222,000
Loans:
Loans collectively evaluated for impairment	204,766,000
Acquired loans | Commercial and industrial
Allowance for loan losses:
Total provision for loan losses charged to operations	144,000
Loans:
Loans collectively evaluated for impairment	41,130,000
Acquired loans | Home equity loans
Allowance for loan losses:
Total provision for loan losses charged to operations	268,000
Loans:
Loans collectively evaluated for impairment	$234,949,000

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses (Details 8) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Loans and Allowance for Loan Losses
Non-acquired OREO	$26,499,000	$37,398,000	$32,248,000	$18,022,000
Non-acquired loans
Loans and Allowance for Loan Losses
Total loans	3,467,826,000	2,865,216,000	2,571,003,000
Non-acquired OREO	7,900,000	13,500,000
Classified Assets	70,700,000	96,300,000
Non-acquired loans | Pass
Loans and Allowance for Loan Losses
Total loans	3,286,228,000	2,656,027,000
Non-acquired loans | Special mention
Loans and Allowance for Loan Losses
Total loans	118,790,000	126,420,000
Non-acquired loans | Substandard and doubtful
Loans and Allowance for Loan Losses
Total loans	62,800,000	82,800,000
Non-acquired loans | Substandard
Loans and Allowance for Loan Losses
Total loans	62,786,000	82,717,000
Non-acquired loans | Doubtful
Loans and Allowance for Loan Losses
Total loans	22,000	52,000
Non-acquired loans | Commercial loans
Loans and Allowance for Loan Losses
Total loans	2,162,575,000	1,889,663,000
Non-acquired loans | Commercial loans | Pass
Loans and Allowance for Loan Losses
Total loans	2,036,266,000	1,742,103,000
Non-acquired loans | Commercial loans | Special mention
Loans and Allowance for Loan Losses
Total loans	87,850,000	92,020,000
Non-acquired loans | Commercial loans | Substandard
Loans and Allowance for Loan Losses
Total loans	38,459,000	55,511,000
Non-acquired loans | Commercial loans | Doubtful
Loans and Allowance for Loan Losses
Total loans		29,000
Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total loans	364,221,000	299,951,000	273,420,000
Non-acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total loans	337,641,000	263,698,000
Non-acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total loans	15,466,000	20,814,000
Non-acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total loans	11,114,000	15,439,000
Non-acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total loans	333,590,000	291,171,000	290,071,000
Non-acquired loans | Commercial non-owner occupied | Pass
Loans and Allowance for Loan Losses
Total loans	307,450,000	259,120,000
Non-acquired loans | Commercial non-owner occupied | Special mention
Loans and Allowance for Loan Losses
Total loans	20,596,000	24,779,000
Non-acquired loans | Commercial non-owner occupied | Substandard
Loans and Allowance for Loan Losses
Total loans	5,544,000	7,272,000
Non-acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total loans	907,913,000	833,513,000	784,152,000
Non-acquired loans | Commercial owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Total loans	858,220,000	785,406,000
Non-acquired loans | Commercial owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Total loans	34,737,000	26,148,000
Non-acquired loans | Commercial owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Total loans	14,956,000	21,959,000
Non-acquired loans | Commercial and industrial
Loans and Allowance for Loan Losses
Total loans	405,923,000	321,824,000	279,763,000
Non-acquired loans | Commercial and industrial | Pass
Loans and Allowance for Loan Losses
Total loans	397,555,000	309,360,000
Non-acquired loans | Commercial and industrial | Special mention
Loans and Allowance for Loan Losses
Total loans	6,718,000	10,376,000
Non-acquired loans | Commercial and industrial | Substandard
Loans and Allowance for Loan Losses
Total loans	1,650,000	2,088,000
Non-acquired loans | Other income producing property
Loans and Allowance for Loan Losses
Total loans	150,928,000	143,204,000	133,713,000
Non-acquired loans | Other income producing property | Pass
Loans and Allowance for Loan Losses
Total loans	135,400,000	124,519,000
Non-acquired loans | Other income producing property | Special mention
Loans and Allowance for Loan Losses
Total loans	10,333,000	9,903,000
Non-acquired loans | Other income producing property | Substandard
Loans and Allowance for Loan Losses
Total loans	5,195,000	8,753,000
Non-acquired loans | Other income producing property | Doubtful
Loans and Allowance for Loan Losses
Total loans		29,000
Non-acquired loans | Consumer loans
Loans and Allowance for Loan Losses
Total loans	1,305,251,000	975,553,000
Non-acquired loans | Consumer loans | Pass
Loans and Allowance for Loan Losses
Total loans	1,249,962,000	913,924,000
Non-acquired loans | Consumer loans | Special mention
Loans and Allowance for Loan Losses
Total loans	30,940,000	34,400,000
Non-acquired loans | Consumer loans | Substandard
Loans and Allowance for Loan Losses
Total loans	24,327,000	27,206,000
Non-acquired loans | Consumer loans | Doubtful
Loans and Allowance for Loan Losses
Total loans	22,000	23,000
Non-acquired loans | Consumer owner occupied
Loans and Allowance for Loan Losses
Total loans	786,778,000	548,170,000	434,503,000
Non-acquired loans | Consumer owner occupied | Pass
Loans and Allowance for Loan Losses
Total loans	746,847,000	500,999,000
Non-acquired loans | Consumer owner occupied | Special mention
Loans and Allowance for Loan Losses
Total loans	22,129,000	25,317,000
Non-acquired loans | Consumer owner occupied | Substandard
Loans and Allowance for Loan Losses
Total loans	17,802,000	21,854,000
Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Total loans	283,934,000	257,139,000	255,284,000
Non-acquired loans | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total loans	269,844,000	243,615,000
Non-acquired loans | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total loans	8,047,000	8,437,000
Non-acquired loans | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total loans	6,021,000	5,064,000
Non-acquired loans | Home equity loans | Doubtful
Loans and Allowance for Loan Losses
Total loans	22,000	23,000
Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Total loans	189,317,000	136,410,000	86,934,000
Non-acquired loans | Consumer | Pass
Loans and Allowance for Loan Losses
Total loans	188,049,000	135,476,000
Non-acquired loans | Consumer | Special mention
Loans and Allowance for Loan Losses
Total loans	764,000	646,000
Non-acquired loans | Consumer | Substandard
Loans and Allowance for Loan Losses
Total loans	504,000	288,000
Non-acquired loans | Other Loans
Loans and Allowance for Loan Losses
Total loans	45,222,000	33,834,000	33,163,000
Non-acquired loans | Other Loans | Pass
Loans and Allowance for Loan Losses
Total loans	$45,222,000	$33,834,000

Recovered_Sheet1

Loans and Allowance for Loan Losses (Details 9) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Non-Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans		$1,600,935
Non-Credit impaired | Pass
Loans and Allowance for Loan Losses
Total acquired loans		1,569,198
Non-Credit impaired | Special mention
Loans and Allowance for Loan Losses
Total acquired loans		12,370
Non-Credit impaired | Substandard
Loans and Allowance for Loan Losses
Total acquired loans		19,367
Acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	24,099	58,396
Acquired loans | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total acquired loans	22,456	57,389
Acquired loans | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	816	109
Acquired loans | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	827	898
Acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	49,476	58,598
Acquired loans | Commercial non-owner occupied | Pass
Loans and Allowance for Loan Losses
Total acquired loans	42,572	56,539
Acquired loans | Commercial non-owner occupied | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	6,039	1,565
Acquired loans | Commercial non-owner occupied | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	865	494
Acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	62,065	73,714
Acquired loans | Commercial owner occupied real estate | Pass
Loans and Allowance for Loan Losses
Total acquired loans	61,040	71,984
Acquired loans | Commercial owner occupied real estate | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	265	318
Acquired loans | Commercial owner occupied real estate | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	760	1,412
Acquired loans | Non-Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans	1,327,999	1,600,935
Acquired loans | Non-Credit impaired | Pass
Loans and Allowance for Loan Losses
Total acquired loans	1,292,782
Acquired loans | Non-Credit impaired | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	14,815
Acquired loans | Non-Credit impaired | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	20,402
Acquired loans | Non-Credit impaired | Commercial loans
Loans and Allowance for Loan Losses
Total acquired loans	241,909	324,047
Acquired loans | Non-Credit impaired | Commercial loans | Pass
Loans and Allowance for Loan Losses
Total acquired loans	228,938	313,501
Acquired loans | Non-Credit impaired | Commercial loans | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	8,464	5,093
Acquired loans | Non-Credit impaired | Commercial loans | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	4,507	5,453
Acquired loans | Non-Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	24,099	58,396
Acquired loans | Non-Credit impaired | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	49,476	58,598
Acquired loans | Non-Credit impaired | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	62,065	73,714
Acquired loans | Non-Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
Total acquired loans	41,130	58,773
Acquired loans | Non-Credit impaired | Commercial and industrial | Pass
Loans and Allowance for Loan Losses
Total acquired loans	39,780	56,777
Acquired loans | Non-Credit impaired | Commercial and industrial | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	448	924
Acquired loans | Non-Credit impaired | Commercial and industrial | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	902	1,072
Acquired loans | Non-Credit impaired | Other income producing property
Loans and Allowance for Loan Losses
Total acquired loans	65,139	74,566
Acquired loans | Non-Credit impaired | Other income producing property | Pass
Loans and Allowance for Loan Losses
Total acquired loans	63,090	70,812
Acquired loans | Non-Credit impaired | Other income producing property | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	896	2,177
Acquired loans | Non-Credit impaired | Other income producing property | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	1,153	1,577
Acquired loans | Non-Credit impaired | Consumer loans
Loans and Allowance for Loan Losses
Total acquired loans	1,086,090	1,276,888
Acquired loans | Non-Credit impaired | Consumer loans | Pass
Loans and Allowance for Loan Losses
Total acquired loans	1,063,844	1,255,697
Acquired loans | Non-Credit impaired | Consumer loans | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	6,351	7,277
Acquired loans | Non-Credit impaired | Consumer loans | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	15,895	13,914
Acquired loans | Non-Credit impaired | Consumer owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	646,375	745,481
Acquired loans | Non-Credit impaired | Consumer owner occupied | Pass
Loans and Allowance for Loan Losses
Total acquired loans	639,555	742,778
Acquired loans | Non-Credit impaired | Consumer owner occupied | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	1,241	417
Acquired loans | Non-Credit impaired | Consumer owner occupied | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	5,579	2,286
Acquired loans | Non-Credit impaired | Home equity loans
Loans and Allowance for Loan Losses
Total acquired loans	234,949	264,150
Acquired loans | Non-Credit impaired | Home equity loans | Pass
Loans and Allowance for Loan Losses
Total acquired loans	222,653	246,274
Acquired loans | Non-Credit impaired | Home equity loans | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	4,491	6,733
Acquired loans | Non-Credit impaired | Home equity loans | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	7,805	11,143
Acquired loans | Non-Credit impaired | Consumer
Loans and Allowance for Loan Losses
Total acquired loans	204,766	267,257
Acquired loans | Non-Credit impaired | Consumer | Pass
Loans and Allowance for Loan Losses
Total acquired loans	201,636	266,645
Acquired loans | Non-Credit impaired | Consumer | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	619	127
Acquired loans | Non-Credit impaired | Consumer | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	2,511	485
Acquired loans | Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans	926,767	1,232,256
Acquired loans | Credit impaired | Pass
Loans and Allowance for Loan Losses
Total acquired loans	470,384	545,690
Acquired loans | Credit impaired | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	154,568	196,192
Acquired loans | Credit impaired | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	301,815	490,296
Acquired loans | Credit impaired | Doubtful
Loans and Allowance for Loan Losses
Total acquired loans		78
Acquired loans | Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	65,262	114,126
Acquired loans | Credit impaired | Construction and land development | Pass
Loans and Allowance for Loan Losses
Total acquired loans	26,855	38,748
Acquired loans | Credit impaired | Construction and land development | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	9,539	13,762
Acquired loans | Credit impaired | Construction and land development | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	28,868	61,616
Acquired loans | Credit impaired | Construction and land development | Doubtful
Loans and Allowance for Loan Losses
Total acquired loans	65,262	114,126
Acquired loans | Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
Total acquired loans	44,804	68,862
Acquired loans | Credit impaired | Commercial and industrial | Pass
Loans and Allowance for Loan Losses
Total acquired loans	25,530	38,450
Acquired loans | Credit impaired | Commercial and industrial | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	5,317	3,968
Acquired loans | Credit impaired | Commercial and industrial | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	13,957	26,444
Acquired loans | Credit impaired | Consumer
Loans and Allowance for Loan Losses
Total acquired loans	85,449	103,998
Acquired loans | Credit impaired | Consumer | Pass
Loans and Allowance for Loan Losses
Total acquired loans	7,493	8,804
Acquired loans | Credit impaired | Consumer | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	29,087	38,322
Acquired loans | Credit impaired | Consumer | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	48,869	56,872
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT
Loans and Allowance for Loan Losses
Total acquired loans	15,813	24,109
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT | Pass
Loans and Allowance for Loan Losses
Total acquired loans	11,248	12,047
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	1,030	2,513
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	3,535	9,549
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT | Doubtful
Loans and Allowance for Loan Losses
Total acquired loans	15,813	24,109
Acquired loans | Credit impaired | Commercial real estate
Loans and Allowance for Loan Losses
Total acquired loans	325,109	439,785
Acquired loans | Credit impaired | Commercial real estate | Pass
Loans and Allowance for Loan Losses
Total acquired loans	208,269	244,293
Acquired loans | Credit impaired | Commercial real estate | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	35,896	46,159
Acquired loans | Credit impaired | Commercial real estate | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	80,944	149,333
Acquired loans | Credit impaired | Commercial real estate | Doubtful
Loans and Allowance for Loan Losses
Total acquired loans	325,109	439,785
Acquired loans | Credit impaired | Residential real estate
Loans and Allowance for Loan Losses
Total acquired loans	390,244	481,247
Acquired loans | Credit impaired | Residential real estate | Pass
Loans and Allowance for Loan Losses
Total acquired loans	190,931	203,296
Acquired loans | Credit impaired | Residential real estate | Special mention
Loans and Allowance for Loan Losses
Total acquired loans	73,699	91,468
Acquired loans | Credit impaired | Residential real estate | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	125,614	186,405
Acquired loans | Credit impaired | Residential real estate | Doubtful
Loans and Allowance for Loan Losses
Total acquired loans		78
Acquired loans | Credit impaired | Single pay
Loans and Allowance for Loan Losses
Total acquired loans	86	129
Acquired loans | Credit impaired | Single pay | Pass
Loans and Allowance for Loan Losses
Total acquired loans	58	52
Acquired loans | Credit impaired | Single pay | Substandard
Loans and Allowance for Loan Losses
Total acquired loans	$28	$77

Recovered_Sheet2

Loans and Allowance for Loan Losses (Details 10) (Non-acquired loans, USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Loans and Allowance for Loan Losses
30-59 Days Past Due	$7,153	$6,810
60-89 Days Past Due	2,004	2,750
90+ Days Past Due	13,062	15,097
Total Past Due	22,219	24,657
Current	3,445,607	2,840,559
Total loans	3,467,826	2,865,216	2,571,003
Construction and land development
Loans and Allowance for Loan Losses
30-59 Days Past Due	318	557
60-89 Days Past Due	439	476
90+ Days Past Due	1,354	2,707
Total Past Due	2,111	3,740
Current	362,110	296,211
Total loans	364,221	299,951	273,420
Commercial non-owner occupied
Loans and Allowance for Loan Losses
30-59 Days Past Due	1,197	1,780
60-89 Days Past Due		1
90+ Days Past Due	1,432	2,684
Total Past Due	2,629	4,465
Current	330,961	286,706
Total loans	333,590	291,171	290,071
Commercial owner occupied real estate
Loans and Allowance for Loan Losses
30-59 Days Past Due	1,106	457
60-89 Days Past Due	95	650
90+ Days Past Due	5,403	3,601
Total Past Due	6,604	4,708
Current	901,309	828,805
Total loans	907,913	833,513	784,152
Consumer owner occupied
Loans and Allowance for Loan Losses
30-59 Days Past Due	1,946	1,526
60-89 Days Past Due	501	1,107
90+ Days Past Due	2,746	2,621
Total Past Due	5,193	5,254
Current	781,585	542,916
Total loans	786,778	548,170	434,503
Home equity loans
Loans and Allowance for Loan Losses
30-59 Days Past Due	679	780
60-89 Days Past Due	443	214
90+ Days Past Due	519	422
Total Past Due	1,641	1,416
Current	282,293	255,723
Total loans	283,934	257,139	255,284
Commercial and industrial
Loans and Allowance for Loan Losses
30-59 Days Past Due	760	390
60-89 Days Past Due	123	105
90+ Days Past Due	107	370
Total Past Due	990	865
Current	404,933	320,959
Total loans	405,923	321,824	279,763
Other income producing property
Loans and Allowance for Loan Losses
30-59 Days Past Due	570	950
60-89 Days Past Due	114	19
90+ Days Past Due	1,319	2,634
Total Past Due	2,003	3,603
Current	148,925	139,601
Total loans	150,928	143,204	133,713
Consumer
Loans and Allowance for Loan Losses
30-59 Days Past Due	512	337
60-89 Days Past Due	243	142
90+ Days Past Due	120	28
Total Past Due	875	507
Current	188,442	135,903
Total loans	189,317	136,410	86,934
Other Loans
Loans and Allowance for Loan Losses
30-59 Days Past Due	65	33
60-89 Days Past Due	46	36
90+ Days Past Due	62	30
Total Past Due	173	99
Current	45,049	33,735
Total loans	$45,222	$33,834	$33,163

Recovered_Sheet3

Loans and Allowance for Loan Losses (Details 11) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Non-Credit impaired
Loans and Allowance for Loan Losses
Total acquired loans		$1,600,935
Acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Total acquired loans	24,099	58,396
Acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Total acquired loans	49,476	58,598
Acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Total acquired loans	62,065	73,714
Acquired loans | Non-Credit impaired
Loans and Allowance for Loan Losses
30-59 Days Past Due	3,321	6,250
60-89 Days Past Due	1,698	1,638
90+ Days Past Due	3,664	3,010
Total Past Due	8,683	10,898
Current	1,319,316	1,590,037
Total acquired loans	1,327,999	1,600,935
Acquired loans | Non-Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
30-59 Days Past Due	17	371
90+ Days Past Due	40	464
Total Past Due	57	835
Current	24,042	57,561
Total acquired loans	24,099	58,396
Acquired loans | Non-Credit impaired | Commercial non-owner occupied
Loans and Allowance for Loan Losses
30-59 Days Past Due		105
90+ Days Past Due		17
Total Past Due		122
Current	49,476	58,476
Total acquired loans	49,476	58,598
Acquired loans | Non-Credit impaired | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
30-59 Days Past Due	414
60-89 Days Past Due		71
90+ Days Past Due	38	272
Total Past Due	452	343
Current	61,613	73,371
Total acquired loans	62,065	73,714
Acquired loans | Non-Credit impaired | Consumer owner occupied
Loans and Allowance for Loan Losses
30-59 Days Past Due	443	3,368
60-89 Days Past Due	241	393
90+ Days Past Due	1,566	1,196
Total Past Due	2,250	4,957
Current	644,125	740,524
Total acquired loans	646,375	745,481
Acquired loans | Non-Credit impaired | Home equity loans
Loans and Allowance for Loan Losses
30-59 Days Past Due	1,451	857
60-89 Days Past Due	866	67
90+ Days Past Due	972	625
Total Past Due	3,289	1,549
Current	231,660	262,601
Total acquired loans	234,949	264,150
Acquired loans | Non-Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
30-59 Days Past Due	14	827
60-89 Days Past Due	250	894
90+ Days Past Due	117	282
Total Past Due	381	2,003
Current	40,749	56,770
Total acquired loans	41,130	58,773
Acquired loans | Non-Credit impaired | Other income producing property
Loans and Allowance for Loan Losses
30-59 Days Past Due	97	431
90+ Days Past Due	88
Total Past Due	185	431
Current	64,954	74,135
Total acquired loans	65,139	74,566
Acquired loans | Non-Credit impaired | Consumer
Loans and Allowance for Loan Losses
30-59 Days Past Due	885	291
60-89 Days Past Due	341	213
90+ Days Past Due	843	154
Total Past Due	2,069	658
Current	202,697	266,599
Total acquired loans	204,766	267,257
Acquired loans | Non-Credit impaired | Consumer real estate
Loans and Allowance for Loan Losses
Total acquired loans	881,324	1,009,631
Acquired loans | Credit impaired
Loans and Allowance for Loan Losses
30-59 Days Past Due	15,986	29,399
60-89 Days Past Due	5,333	17,872
90+ Days Past Due	48,464	82,132
Total Past Due	69,783	129,403
Current	856,984	1,102,853
Total acquired loans	926,767	1,232,256
Acquired loans | Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
30-59 Days Past Due	1,750	4,847
60-89 Days Past Due	452	9,166
90+ Days Past Due	8,204	17,567
Total Past Due	10,406	31,580
Current	54,856	82,546
Total acquired loans	65,262	114,126
Acquired loans | Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
30-59 Days Past Due	451	3,875
60-89 Days Past Due	196	634
90+ Days Past Due	3,413	3,829
Total Past Due	4,060	8,338
Current	40,744	60,524
Total acquired loans	44,804	68,862
Acquired loans | Credit impaired | Consumer
Loans and Allowance for Loan Losses
30-59 Days Past Due	2,241	2,390
60-89 Days Past Due	1,106	552
90+ Days Past Due	2,614	2,050
Total Past Due	5,961	4,992
Current	79,488	99,006
Total acquired loans	85,449	103,998
Acquired loans | Credit impaired | Commercial Loans Greater Than or Equal to $1 Million-CBT
Loans and Allowance for Loan Losses
90+ Days Past Due	2,896	7,217
Total Past Due	2,896	7,217
Current	12,917	16,892
Total acquired loans	15,813	24,109
Acquired loans | Credit impaired | Commercial real estate
Loans and Allowance for Loan Losses
30-59 Days Past Due	4,350	4,493
60-89 Days Past Due	723	3,728
90+ Days Past Due	15,866	24,362
Total Past Due	20,939	32,583
Current	304,170	407,202
Total acquired loans	325,109	439,785
Acquired loans | Credit impaired | Residential real estate
Loans and Allowance for Loan Losses
30-59 Days Past Due	7,194	13,794
60-89 Days Past Due	2,856	3,792
90+ Days Past Due	15,471	27,061
Total Past Due	25,521	44,647
Current	364,723	436,600
Total acquired loans	390,244	481,247
Acquired loans | Credit impaired | Single pay
Loans and Allowance for Loan Losses
90+ Days Past Due		46
Total Past Due		46
Current	86	83
Total acquired loans	$86	$129

Recovered_Sheet4

Loans and Allowance for Loan Losses (Details 12) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	$26,565	$35,331	$49,326
Interest Income Recognized	598	393	751
Construction and land development
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	5,295	10,589	18,048
Interest Income Recognized	80	98	114
Commercial non-owner occupied
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	3,145	4,030	7,503
Interest Income Recognized	68		85
Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	10,360	15,170	17,460
Interest Income Recognized	141	106	347
Consumer owner occupied
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	2,990	845	2,223
Interest Income Recognized	113	154	65
Home equity loans
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	15
Interest Income Recognized	1
Commercial and industrial
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	657	1,234	921
Interest Income Recognized	27		23
Other income producing property
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	4,073	3,463	3,171
Interest Income Recognized	163	35	117
Consumer
Loans and Allowance for Loan Losses
Average Investment In Impaired Loans	30
Interest Income Recognized	5
Non-acquired loans
Loans and Allowance for Loan Losses
Nonaccrual loans	27,994	42,023
Non-acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	2,920	5,819
Non-acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Nonaccrual loans	2,325	2,912
Non-acquired loans | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	5,245	8,731
Non-acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	3,605	7,753
Non-acquired loans | Consumer real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	7,427	9,510
Non-acquired loans | Consumer owner occupied
Loans and Allowance for Loan Losses
Nonaccrual loans	6,015	8,382
Non-acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,412	1,128
Non-acquired loans | Commercial and industrial
Loans and Allowance for Loan Losses
Nonaccrual loans	600	586
Non-acquired loans | Other income producing property
Loans and Allowance for Loan Losses
Nonaccrual loans	1,348	4,704
Non-acquired loans | Consumer
Loans and Allowance for Loan Losses
Nonaccrual loans	344	49
Non-acquired loans | Restructured loans
Loans and Allowance for Loan Losses
Nonaccrual loans	9,425	10,690
Non-Credit impaired
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	36,366	31,284
Recorded Investment With No Allowance	10,309	17,636
Gross Recorded Investment With Allowance	16,776	8,411
Total Recorded Investment	27,085	26,047
Related Allowance	1,558	1,631
Non-Credit impaired | Construction and land development
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	7,414	7,341
Recorded Investment With No Allowance	1,528	3,555
Gross Recorded Investment With Allowance	3,324	2,184
Total Recorded Investment	4,852	5,739
Related Allowance	475	704
Non-Credit impaired | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	4,920	3,592
Recorded Investment With No Allowance	2,539	2,681
Gross Recorded Investment With Allowance	1,071
Total Recorded Investment	3,610	2,681
Related Allowance	77
Non-Credit impaired | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	12,508	14,017
Recorded Investment With No Allowance	5,546	10,441
Gross Recorded Investment With Allowance	3,614	1,119
Total Recorded Investment	9,160	11,560
Related Allowance	172	10
Non-Credit impaired | Consumer owner occupied
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	3,393	3,063
Gross Recorded Investment With Allowance	2,966	3,013
Total Recorded Investment	2,966	3,013
Related Allowance	144	271
Non-Credit impaired | Home equity loans
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	131
Gross Recorded Investment With Allowance	31
Total Recorded Investment	31
Related Allowance	1
Non-Credit impaired | Commercial and industrial
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	1,625	477
Recorded Investment With No Allowance	336	405
Gross Recorded Investment With Allowance	572
Total Recorded Investment	908	405
Related Allowance	41
Non-Credit impaired | Other income producing property
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	6,280	2,794
Recorded Investment With No Allowance	360	554
Gross Recorded Investment With Allowance	5,138	2,095
Total Recorded Investment	5,498	2,649
Related Allowance	646	646
Non-Credit impaired | Consumer
Loans and Allowance for Loan Losses
Unpaid Contractual Principal Balance	95
Gross Recorded Investment With Allowance	60
Total Recorded Investment	60
Related Allowance	2
Non-Credit impaired | Restructured loans
Loans and Allowance for Loan Losses
Number of months generally required to return to accruing status	6 months
Non-Credit impaired | Acquired loans
Loans and Allowance for Loan Losses
Nonaccrual loans	7,538
Non-Credit impaired | Acquired loans | Construction and land development
Loans and Allowance for Loan Losses
Nonaccrual loans	41
Non-Credit impaired | Acquired loans | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Nonaccrual loans	645
Non-Credit impaired | Acquired loans | Commercial non-owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	686
Non-Credit impaired | Acquired loans | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	38
Non-Credit impaired | Acquired loans | Consumer real estate
Loans and Allowance for Loan Losses
Nonaccrual loans	5,192
Non-Credit impaired | Acquired loans | Consumer owner occupied
Loans and Allowance for Loan Losses
Nonaccrual loans	3,685
Non-Credit impaired | Acquired loans | Home equity loans
Loans and Allowance for Loan Losses
Nonaccrual loans	1,507
Non-Credit impaired | Acquired loans | Commercial and industrial
Loans and Allowance for Loan Losses
Nonaccrual loans	120
Non-Credit impaired | Acquired loans | Other income producing property
Loans and Allowance for Loan Losses
Nonaccrual loans	309
Non-Credit impaired | Acquired loans | Consumer
Loans and Allowance for Loan Losses
Nonaccrual loans	$1,193

Recovered_Sheet5

Loans and Allowance for Loan Losses (Details 13) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	loan	loan	loan
Loans and Allowance for Loan Losses
Balance of accruing TDRs	$6,600,000	$5,300,000
Non-Credit impaired
Loans and Allowance for Loan Losses
Number of loans	9	5	9
Pre-Modification Outstanding Recorded Investment	2,575,000	3,682,000	7,529,000
Post-Modification Outstanding Recorded Investment	2,455,000	3,658,000	7,359,000
Non-Credit impaired | Interest rate modification
Loans and Allowance for Loan Losses
Number of loans	7	4	6
Pre-Modification Outstanding Recorded Investment	1,233,000	1,240,000	5,994,000
Post-Modification Outstanding Recorded Investment	1,154,000	1,216,000	5,835,000
Non-Credit impaired | Interest rate modification | Construction and land development
Loans and Allowance for Loan Losses
Number of loans	2	1	1
Pre-Modification Outstanding Recorded Investment	602,000	120,000	165,000
Post-Modification Outstanding Recorded Investment	562,000	120,000	156,000
Non-Credit impaired | Interest rate modification | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Number of loans		1
Pre-Modification Outstanding Recorded Investment		246,000
Post-Modification Outstanding Recorded Investment		233,000
Non-Credit impaired | Interest rate modification | Commercial owner occupied real estate
Loans and Allowance for Loan Losses
Number of loans		1	4
Pre-Modification Outstanding Recorded Investment		750,000	5,355,000
Post-Modification Outstanding Recorded Investment		747,000	5,215,000
Non-Credit impaired | Interest rate modification | Consumer owner occupied
Loans and Allowance for Loan Losses
Number of loans	4	1
Pre-Modification Outstanding Recorded Investment	484,000	124,000
Post-Modification Outstanding Recorded Investment	464,000	116,000
Non-Credit impaired | Interest rate modification | Commercial and industrial
Loans and Allowance for Loan Losses
Number of loans			1
Pre-Modification Outstanding Recorded Investment			474,000
Post-Modification Outstanding Recorded Investment			464,000
Non-Credit impaired | Interest rate modification | Other income producing property
Loans and Allowance for Loan Losses
Number of loans	1
Pre-Modification Outstanding Recorded Investment	147,000
Post-Modification Outstanding Recorded Investment	128,000
Non-Credit impaired | Term modification
Loans and Allowance for Loan Losses
Number of loans	2	1	3
Pre-Modification Outstanding Recorded Investment	1,342,000	2,442,000	1,535,000
Post-Modification Outstanding Recorded Investment	1,301,000	2,442,000	1,524,000
Non-Credit impaired | Term modification | Construction and land development
Loans and Allowance for Loan Losses
Number of loans	1		2
Pre-Modification Outstanding Recorded Investment	99,000		835,000
Post-Modification Outstanding Recorded Investment	95,000		824,000
Non-Credit impaired | Term modification | Commercial non-owner occupied
Loans and Allowance for Loan Losses
Number of loans			1
Pre-Modification Outstanding Recorded Investment			700,000
Post-Modification Outstanding Recorded Investment			700,000
Non-Credit impaired | Term modification | Consumer owner occupied
Loans and Allowance for Loan Losses
Number of loans		1
Pre-Modification Outstanding Recorded Investment		2,442,000
Post-Modification Outstanding Recorded Investment		2,442,000
Non-Credit impaired | Term modification | Other income producing property
Loans and Allowance for Loan Losses
Number of loans	1
Pre-Modification Outstanding Recorded Investment	1,243,000
Post-Modification Outstanding Recorded Investment	$1,206,000

Recovered_Sheet6

Loans and Allowance for Loan Losses (Details 14) (Non-acquired loans, USD $)	12 Months Ended
	Dec. 31, 2014
	loan
Loans and Allowance for Loan Losses
Specific reserve associated with restructured loans	$991,000
Specific reserve associated with restructured loans that subsequently defaulted	0
Paying Under Restructured Loans
Loans and Allowance for Loan Losses
Number of loans	6
Recorded Investment	2,068,000
Converted to Non-Accrual
Loans and Allowance for Loan Losses
Number of loans	2
Recorded Investment	183,000
Foreclosures and defaults
Loans and Allowance for Loan Losses
Number of loans	1
Recorded Investment	204,000
Interest rate modification | Paying Under Restructured Loans
Loans and Allowance for Loan Losses
Number of loans	4
Recorded Investment	767,000
Interest rate modification | Converted to Non-Accrual
Loans and Allowance for Loan Losses
Number of loans	2
Recorded Investment	183,000
Interest rate modification | Foreclosures and defaults
Loans and Allowance for Loan Losses
Number of loans	1
Recorded Investment	204,000
Term modification | Paying Under Restructured Loans
Loans and Allowance for Loan Losses
Number of loans	2
Recorded Investment	$1,301,000

FDIC_Indemnification_Asset_Det

FDIC Indemnification Asset (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Receivable from FDIC for Loss Share Agreements
Balance at the beginning of period	$86,447,000	$146,171,000	$262,651,000
FDIC indemnification asset recorded		21,891,000
Increase (decrease) in expected losses on loans	-2,421,000	-3,452,000	78,000
Additional losses (gains) on OREO	-4,520,000	-2,252,000	7,467,000
Reimbursable expenses	2,829,000	5,542,000	9,262,000
Amortization of discounts and premiums, net	-21,895,000	-29,535,000	-20,773,000
Reimbursements from FDIC	-38,279,000	-51,918,000	-112,514,000
Balance at the end of period	22,161,000	86,447,000	146,171,000
Reimbursements from FDIC	16,000,000
Subsequent event
Receivable from FDIC for Loss Share Agreements
Reimbursements from FDIC	1,300,000
Habersham
Receivable from FDIC for Loss Share Agreements
Estimated "true-up" payment to the FDIC at the end of the loss share agreement	0
BankMeridian
Receivable from FDIC for Loss Share Agreements
Estimated "true-up" payment to the FDIC at the end of the loss share agreement	4,100,000
Plantation
Receivable from FDIC for Loss Share Agreements
Estimated "true-up" payment to the FDIC at the end of the loss share agreement	3,400,000
CBT
Receivable from FDIC for Loss Share Agreements
Estimated "true-up" payment to the FDIC at the end of the loss share agreement	0
Percentage of recoveries shared with the FDIC	95.00%
Period for recoveries received shared with FDIC	3 years
Loans under Commercial Shared-Loss Agreement	50,300,000
OREO under Commercial Shared-Loss Agreement	3,900,000
Cape Fear
Receivable from FDIC for Loss Share Agreements
Estimated "true-up" payment to the FDIC at the end of the loss share agreement	$0

Other_Real_Estate_Owned_Detail

Other Real Estate Owned (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	property	property
OREO
Balance at the beginning of the period	$37,398,000	$32,248,000	$18,022,000
Additions	29,260,000	33,761,000	25,958,000
Write-downs	-4,827,000	-7,831,000	-5,633,000
Sold	-35,332,000	-25,581,000	-21,309,000
Balance at the end of the period	26,499,000	37,398,000	32,248,000
Number of properties uncovered	166	216
Covered OREO
Balance at the beginning of the period	27,520,000	34,257,000	65,849,000
Additions	16,555,000	20,559,000	-20,631,000
Write-downs	-5,858,000	-278,000	-7,557,000
Sold	-21,990,000	-33,423,000	-44,666,000
Balance at the end of the period	16,227,000	27,520,000	34,257,000
Number of properties covered by loss share with the FDIC	113	264
Total
Balance at the beginning of the period	64,918,000	66,505,000	83,871,000
Additions	45,815,000	54,320,000	46,589,000
Write-downs	-10,685,000	-8,109,000	-13,190,000
Sold	-57,322,000	-59,004,000	-65,975,000
Balance at the end of the period	42,726,000	64,918,000	66,505,000
Number of properties held	279	480
Number of Real Estate Properties SoldNumber of Real Estate Properties Sold	557	693
Number of uncovered properties sold	253	236
Number of covered properties by loss share agreements with the FDIC sold	304	457
Carrying value of covered OREO assets	16,227,000	27,520,000	34,257,000
First Financial Holdings, Inc. ("First Financial")
OREO
Additions		4,801,000
Covered OREO
Additions		6,405,000
Total
Additions		11,206,000
Peoples
OREO
Additions			8,104,000
Total
Additions			8,104,000
Savannah Bancorp ("SAVB")
OREO
Additions			7,106,000
Total
Additions			$7,106,000
Habersham
Total
Percentage of loss covered under loss share agreements with the FDIC	80.00%
CBT
Total
Percentage of loss covered under loss share agreements with the FDIC	95.00%

Premises_and_Equipment_Details

Premises and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Premises and equipment
Total	$267,293,000	$284,012,000
Less accumulated depreciation	-95,521,000	-95,898,000
Net premises and equipment	171,772,000	188,114,000
Depreciation expense charged to operations	11,100,000	10,000,000	8,700,000
Amortization expense	1,700,000	1,400,000	1,300,000
Land
Premises and equipment
Total	54,269,000	67,056,000
Buildings and leasehold improvements
Premises and equipment
Total	139,742,000	145,028,000
Buildings and leasehold improvements | Minimum
Premises and equipment
Useful Life	15 years
Buildings and leasehold improvements | Maximum
Premises and equipment
Useful Life	40 years
Equipment and furnishings
Premises and equipment
Total	72,671,000	70,989,000
Equipment and furnishings | Minimum
Premises and equipment
Useful Life	3 years
Equipment and furnishings | Maximum
Premises and equipment
Useful Life	10 years
Construction in process
Premises and equipment
Total	611,000	939,000
Computer software
Premises and equipment
Useful Life	36 months
Total	$6,000,000	$10,700,000

Goodwill_and_Other_Intangible_2

Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Apr. 24, 2012	Dec. 13, 2013	Jul. 26, 2013
Impairment of Goodwill	$0
Goodwill
Goodwill, Beginning Balance	317,688		103,292
Goodwill, Ending Balance	317,688		103,292
Peoples
Goodwill
Goodwill, Beginning Balance				4,007
Additions, Goodwill from acquisition or merger		214,396
Goodwill, Ending Balance				4,007
Savannah Bancorp ("SAVB")
Goodwill
Goodwill, Beginning Balance					36,397
Goodwill, Ending Balance					36,397
First Financial Holdings, Inc. ("First Financial")
Goodwill
Goodwill, Beginning Balance						214,396
Goodwill, Ending Balance						$214,396

Goodwill_and_Other_Intangible_3

Goodwill and Other Intangible Assets (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other intangible assets
Gross carrying amount	$75,354	$77,896
Accumulated amortization	-26,115	-17,988
Net carrying amount	49,239	59,908
Amortization expense	8,320	6,081	2,172
Estimated amortization expense for other intangibles for each of the next five years
2015	7,890
2016	6,377
2017	6,136
2018	5,797
2019	5,530
Thereafter	17,509
Total estimated amortization expense for other intangibles for the next five years	$49,239
Minimum
Other intangible assets
Estimated useful lives	2 years
Maximum
Other intangible assets
Estimated useful lives	15 years

Deposits_Details

Deposits (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deposits
Certificates of deposit	$1,237,140	$1,525,567
Interest-bearing demand deposits	2,927,820	2,893,646
Non-interest bearing demand deposits	1,639,953	1,486,445
Savings deposits	655,132	647,648
Other time deposits	1,000	838
Total deposits	$6,461,045	$6,554,144

Deposits_Details_2

Deposits (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Deposits
Aggregate amounts of certificates of deposits in denominations of $250,000 or more	$128,500,000	$152,600,000
Traditional, out-of-market brokered deposits	23,400,000	34,800,000
Other Time Deposits	1,000,000	838,000
Scheduled maturities of time deposits of all denominations
2015	835,296,000
2016	229,820,000
2017	90,151,000
2018	43,179,000
2019	31,756,000
Thereafter	7,938,000
Time deposits	$1,238,140,000

Federal_Funds_Purchased_and_Se2

Federal Funds Purchased and Securities Sold Under Agreements to Repurchase (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Amount
At period-end	$221,541	$211,401
Federal funds purchased and securities sold under repurchase agreements
Amount
At period-end	221,541	211,401	238,621
Average for the year	253,948	274,080	229,185
Maximum month-end balance	$321,733	$328,701	$254,104
Rate
At period-end (as a percent)	0.14%	0.14%	0.17%
Average for the year (as a percent)	0.14%	0.16%	0.20%
Federal funds purchased and securities sold under repurchase agreements | Minimum
Information concerning federal funds purchased and securities sold under repurchase agreements
Maturity period from the transaction date	1 day
Federal funds purchased and securities sold under repurchase agreements | Maximum
Information concerning federal funds purchased and securities sold under repurchase agreements
Maturity period from the transaction date	3 days
Maturity period as per policies	9 months

Other_Borrowings_Details

Other Borrowings (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other Borrowings
Other borrowings	101,210	102,060
FFCH Capital Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	0.07%	0.07%
Other borrowings	46,258	46,135
Discount	134
SCBT Capital Trust III junior subordinated debt
Other Borrowings
Other borrowings	20,619	20,619
SCBT Capital Trust III junior subordinated debt | Until September 15, 2015
Other Borrowings
Fixed interest rate (as a percent)	0.06%	0.06%
SCBT Capital Trust III junior subordinated debt | After September 15, 2015
Other Borrowings
Spread on variable rate basis (as a percent)	1.59%	1.59%
SCBT Capital Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	1.79%	1.79%
Other borrowings	12,372	12,372
SCBT Capital Trust II junior subordinated debt
Other Borrowings
Other borrowings	8,248	8,248
SCBT Capital Trust II junior subordinated debt | Until June 15, 2010
Other Borrowings
Fixed interest rate (as a percent)	0.06%	0.06%
SCBT Capital Trust II junior subordinated debt | After June 15, 2010
Other Borrowings
Spread on variable rate basis (as a percent)	1.79%	1.79%
SAVB Capital Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	2.85%	2.85%
Other borrowings	5,844	5,729
Discount	342
SAVB Capital Trust II junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	2.20%	2.20%
Other borrowings	3,828	3,729
Discount	296	296
TSB Statutory Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	1.72%	1.72%
Other borrowings	3,093	3,093
Other
Other Borrowings
Other borrowings	948	2,135

Other_Borrowings_Details_2

Other Borrowings (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013
FHLB Advances
Outstanding advances	$136,000	$142,000
FHLB Advances
FHLB Advances
Loans pledged via a blanket lien to the FHLB for advances and letters of credit	2,400,000,000
Total borrowing capacity at FHLB	960,800,000
Letter of credit borrowed	19,700,000
Unused net credit available with the FHLB	$940,700,000

Other_Borrowings_Details_3

Other Borrowings (Details 3) (Junior Subordinated Debt, USD $)	12 Months Ended
	Dec. 31, 2014
Trusts
Junior Subordinated Debt
Junior subordinated debt securities	$101,000,000
Maximum allowed percentage of ownership interest to total Tier 1 capital	25.00%
SAVB Capital Trust I and II and FFCH Capital Trust I
Junior Subordinated Debt
Liability for the junior subordinated debt securities recorded on SAVB Capital Trust I and II	100,300,000
Discount	772,000,000,000
Amount paid to holders, if the entity call backs the subordinated debt securities	$101,000,000
Discount amortization period	5 years

Other_Borrowings_Details_4

Other Borrowings (Details 4) (USD $)	0 Months Ended
	Oct. 28, 2013	Dec. 31, 2014	Dec. 31, 2013
Principal maturities of other borrowings
2015		$6,000
2016		6,000
2017		7,000
2018		7,000
2019		7,000
Thereafter		101,177,000
Other borrowings		101,210,000	102,060,000
Unsecured line of credit
Other Borrowings
Maximum borrowing capacity	20,000,000
Variable interest rate basis	one-month LIBOR
Spread on variable rate basis (as a percent)	1.75%
Junior Subordinated Debt
Principal maturities of other borrowings
Thereafter		100,262,000
Other borrowings		100,262,000
Other
Principal maturities of other borrowings
2015		6,000
2016		6,000
2017		7,000
2018		7,000
2019		7,000
Thereafter		915,000
Other borrowings		$948,000	$2,135,000

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
Federal	$8,577	$22,153	$10,455
State	1,609	1,135	1,351
Total current tax expense	10,186	23,288	11,806
Deferred:
Federal	26,156	973	3,161
State	-351	1,094	161
Total deferred tax expense (benefit)	25,805	2,067	3,322
Provision for income taxes	35,991	25,355	15,128
Federal statutory income tax rate (as a percent)	35.00%
Difference between the provision for income taxes and taxes computed by applying the federal statutory income tax rate to income before provision for income taxes
Income taxes at federal statutory rate	39,000	26,101	15,806
Increase (reduction) of taxes resulting from:
State income taxes, net of federal tax benefit	818	1,450	983
Tax-exempt interest	-1,778	-1,792	-1,436
Income tax credits	-1,257	-1,094	-571
Dividends received deduction	-5	-4	-3
Other, net	-787	694	349
Provision for income taxes	35,991	25,355	15,128
Components of the net deferred tax asset
Allowance for loan losses	13,611	13,386
Other-than-temporary impairment on securities	120	136
Share-based compensation	1,762	952
Pension plan and post-retirement benefits	1,063	159
Deferred compensation	2,523	2,030
Purchase accounting adjustments	53,052	72,104
Other real estate owned	1,926	8,141
Tax deductible goodwill	1,624	1,724
Net operating loss carryforwards	17,127	17,722
Cash flow hedge	326	348
Unrealized losses on investment securities available for sale		3,440
Other	1,024	4,678
Total deferred tax assets	94,158	124,820
Gain on FDIC assisted transaction deferred for tax purposes	9,856	11,689
Unrealized gains on investment securities available for sale	3,369
Depreciation	6,388	5,123
Intangible assets	15,584	17,985
Deferred loan fees	3,445	3,698
Prepaid expense	537	669
Other	10,809	10,851
Total deferred tax liabilities	49,988	50,015
Net deferred tax asset (liability) before valuation allowance	44,170	74,805
Less, valuation allowance	-1,478	-1,042
Net deferred tax asset and tax credits	42,692	73,763
Parent company
Deferred:
Provision for income taxes	-3,628	-2,360	-812
Increase (reduction) of taxes resulting from:
Provision for income taxes	($3,628)	($2,360)	($812)

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Income Taxes
Unrecognized tax benefits	$0
Accrued interest and penalties	0
Peoples
Income Taxes
RBIL carryforwards	11.8
RBIL carryforwards subject to annual limitations	1.5
Savannah Bancorp ("SAVB")
Income Taxes
NOL and RBIL carryforwards	22.9
NOL and RBIL carryforwards subject to annual limitations	2
Federal
Income Taxes
Operating loss carryforwards	34.7	38.2
State
Income Taxes
Operating loss carryforwards	50.6	40.5
Valuation allowance relating to operating loss carryforwards	$1.50

Other_Expense_Details

Other Expense (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Expense
Business development and staff related	$5,684	$4,962	$2,916
Other loan expense	2,056	2,220	1,494
Courier expense	1,559	962	561
Director and shareholder expense	1,550	1,290	1,196
Property and sales tax	616	662	262
Office supplies	488	397	392
Other	6,938	6,301	2,978
Total other noninterest expense	$18,891	$16,794	$9,799

Earnings_Per_Common_Share_Deta

Earnings Per Common Share (Details) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net income available to common shareholders	$74,364	$47,865	$30,032
Denominator:
Weighted-average basic common shares	23,897	19,866	14,698
Effect of dilutive securities:
Employee stock options and restricted stock	257	211	98
Dilutive potential shares:
Weighted-average dilutive shares	24,154	20,077	14,796
Basic earnings per common share (in dollars per share)	$3.11	$2.41	$2.04
Diluted earnings per common share (in dollars per share)	$3.08	$2.38	$2.03
Earnings Per Share
Number of shares	22,497	21,361	138,729
Range of exercise prices, low end of range (in dollars per share)	$61.49	$41.45	$31.10
Range of exercise prices, high end of range (in dollars per share)	$66.32	$41.45	$40.99

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	($9,723)	$376	($2,749)
Other comprehensive income (loss) before reclassifications	8,682	-10,607	2,748
Amounts reclassified from accumulated other comprehensive loss	664	508	377
Other comprehensive income (loss), net of tax	9,346	-10,099	3,125
Balance at the end of the period	-377	-9,723	376
Benefit Plans
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	-3,585	-7,458	-7,823
Other comprehensive income (loss) before reclassifications	-2,201	3,555	52
Amounts reclassified from accumulated other comprehensive loss	471	318	313
Other comprehensive income (loss), net of tax	-1,730	3,873	365
Balance at the end of the period	-5,315	-3,585	-7,458
Unrealized Gains and Losses on Securities Available for sale
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	-5,573	8,764	5,935
Other comprehensive income (loss) before reclassifications	11,039	-14,337	2,946
Amounts reclassified from accumulated other comprehensive loss	1		-117
Other comprehensive income (loss), net of tax	11,040	-14,337	2,829
Balance at the end of the period	5,467	-5,573	8,764
Gains and Losses on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss)
Balance at the beginning of the period	-565	-930	-861
Other comprehensive income (loss) before reclassifications	-156	175	-250
Amounts reclassified from accumulated other comprehensive loss	192	190	181
Other comprehensive income (loss), net of tax	36	365	-69
Balance at the end of the period	($529)	($565)	($930)

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income (Loss) (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	($15,662)	($12,987)	($11,094)
Other noninterest income	16,201	9,040	4,974
Salaries and employee benefits	158,432	122,096	76,308
Provision for income taxes	-35,991	-25,355	-15,128
Net income available to common shareholders	74,364	47,865	30,032
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Net income available to common shareholders	664	508	377
Gains and Losses on Cash Flow Hedges | Amount Reclassified from Accumulated Other Comprehensive Loss | Interest rate contracts
Reclassifications out of accumulated other comprehensive income, net of tax
Interest expense	310	307	293
Provision for income taxes	-118	-117	-112
Net income available to common shareholders	192	190	181
Unrealized Gains and Losses on Securities Available for sale | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Other noninterest income	2		-189
Provision for income taxes	-1		72
Net income available to common shareholders	1		-117
Benefit Plans | Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassifications out of accumulated other comprehensive income, net of tax
Salaries and employee benefits	761	482	471
Provision for income taxes	-290	-164	-158
Net income available to common shareholders	$471	$318	$313

Restrictions_on_Subsidiary_Div1

Restrictions on Subsidiary Dividends, Loans, or Advances (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jan. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Jan. 31, 2014	Dec. 31, 2013
Restrictions on Subsidiary Dividends, Loans, or Advances
Special dividend paid by the Bank to the entity	$5	$13.40
Amount available for special dividend distribution with approval from SCBFI				31.4
Redemption amount of preferred stock			65
Maximum amount available for transfer in the form of loans or advances			$107		$106.70

Retirement_Plans_Details

Retirement Plans (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Amounts recognized in accumulated other comprehensive income excluding related income tax effects
Net loss	$8,200,000	$5,500,000
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Amortization of net loss	-761,000	-482,000	-471,000
Total amount recognized in other comprehensive income	3,727,000	-5,804,000	-139,000
Non-contributory defined benefit pension plan
Change in benefit obligation:
Benefit obligation at beginning of year	24,608,000	26,703,000	25,015,000
Interest cost	1,110,000	997,000	1,033,000
Actuarial (gain) loss	3,057,000	-2,359,000	1,308,000
Benefits paid	-774,000	-733,000	-653,000
Benefit obligation at end of year	28,002,000	24,608,000	26,703,000	25,015,000
Change in plan assets:
Fair value of plan assets at beginning of year	27,033,000	22,219,000	19,233,000
Actual return on plan assets	1,592,000	4,347,000	2,439,000
Employer contribution		600,000	1,200,000	1,200,000
Benefits paid	-774,000	-733,000	-653,000
Fair value of plan assets at end of year	28,451,000	27,033,000	22,219,000	19,233,000
Funded status	449,000	2,425,000	-4,484,000
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	1,110,000	997,000	1,033,000
Expected return on plan assets	-1,938,000	-1,721,000	-1,631,000
Recognized net actuarial loss	659,000	1,206,000	1,069,000
Net periodic pension expense	-169,000	482,000	471,000
Net (gain) loss	3,404,000	-4,986,000	500,000
Amortization of net loss	-659,000	-1,206,000	-1,069,000
Total amount recognized in other comprehensive income	2,745,000	-6,192,000	-569,000
Total recognized in net periodic benefit cost and other comprehensive income	2,576,000	-5,710,000	-98,000
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for defined benefit pension plan that will be amortized from accumulated other comprehensive income into periodic benefit cost over the next fiscal year	898,000,000
Accumulated benefit obligation in excess of plan assets
Projected benefit obligation	28,002,000	24,608,000
Accumulated benefit obligation	28,002,000	24,608,000
Fair value of plan assets	$28,451,000	$27,033,000
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.70%	4.60%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	4.60%	3.80%	4.20%
Expected long-term return on plan assets (as a percent)	7.75%	7.75%	7.75%
Non-contributory defined benefit pension plan | Employees hired on or before December 31, 2005
Retirement Plans
Requisite age of employees for receiving retirement benefits under the plan	21 years
Requisite age of employees for receiving retirement benefits under the new benefit formula	1 year

Retirement_Plans_Details_2

Retirement Plans (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair value of pension plan assets
Purchases of shares of common stock	0	0	0
Cash equivalents
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	3.00%
Standard Deviation Assumption (as a percent)	0.60%
High Grade Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	6.32%
Standard Deviation Assumption (as a percent)	3.50%
High Yield Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	8.31%
Standard Deviation Assumption (as a percent)	8.96%
International Fixed Income
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	6.74%
Standard Deviation Assumption (as a percent)	8.36%
Large Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	10.05%
Standard Deviation Assumption (as a percent)	16.95%
Mid Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	11.56%
Standard Deviation Assumption (as a percent)	17.54%
Mid/Small Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	10.26%
Standard Deviation Assumption (as a percent)	18.99%
Small Cap Equity
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	8.96%
Standard Deviation Assumption (as a percent)	20.43%
Equity managers
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	7.27%
Standard Deviation Assumption (as a percent)	17.43%
Non-contributory defined benefit pension plan
Long-term rate of return and standard deviation assumptions used in developing long-term rate of return assumption for the pension plan
Rate of Return Assumption (as a percent)	7.75%	7.75%	7.75%
Fair value of pension plan assets
Fair value of pension plan assets	$28,451	$27,033	$22,219	$19,233
Estimated future benefit payments (including expected future service as appropriate)
2015	1,065
2016	1,181
2017	1,297
2018	1,393
2019	1,443
2019 to 2023	7,792
Estimated future benefit payments	14,171
Pension:
Pension	-169	482	471
Employee savings plan/ 401(K) plan	4,966	3,508	1,741
Post-retirement benefits	242	164	59
Expenses incurred and charged against operations	5,127	4,609	2,814
Non-contributory defined benefit pension plan | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	28,451
Non-contributory defined benefit pension plan | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	28,451
Non-contributory defined benefit pension plan | Cash equivalents
Information about plan assets
Allowable allocation percentages, minimum	0.00%
Allowable allocation percentages, maximum	35.00%
Actual asset allocation (as a percent)		8.00%
Non-contributory defined benefit pension plan | Foreign equities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	2,497
Non-contributory defined benefit pension plan | Foreign equities | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	2,497
Non-contributory defined benefit pension plan | Equity managers
Information about plan assets
Allowable allocation percentages, minimum	55.00%
Allowable allocation percentages, maximum	65.00%
Actual asset allocation (as a percent)		64.00%
Non-contributory defined benefit pension plan | Fixed income
Information about plan assets
Allowable allocation percentages, minimum	20.00%
Allowable allocation percentages, maximum	40.00%
Actual asset allocation (as a percent)		28.00%
Non-contributory defined benefit pension plan | Money market funds | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	2,393
Non-contributory defined benefit pension plan | Money market funds | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	2,393
Non-contributory defined benefit pension plan | Cash and cash equivalents | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	4
Non-contributory defined benefit pension plan | Cash and cash equivalents | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	4
Non-contributory defined benefit pension plan | Broad market fixed income | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	8,098
Non-contributory defined benefit pension plan | Broad market fixed income | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	8,098
Non-contributory defined benefit pension plan | U.S. equities | Quoted Prices In Active Markets for Identical Assets (Level 1)
Fair value of pension plan assets
Fair value of pension plan assets	15,459
Non-contributory defined benefit pension plan | U.S. equities | Fair Value.
Fair value of pension plan assets
Fair value of pension plan assets	15,459
Supplemental executive retirement plan
Pension:
Supplemental executive retirement plan	$88	$455	$543

Retirement_Plans_Details_3

Retirement Plans (Details 3)	12 Months Ended
	Dec. 31, 2014
Employees' savings plan
Matching contribution by the company (as a percent)	100.00%
Minimum
Employees' savings plan
Age of employees to be eligible to participate in the defined contribution plan	18 years
Percentage of annual base compensation that participants may elect to contribute	1.00%
Maximum
Employees' savings plan
Percentage of annual base compensation that participants may elect to contribute	50.00%
Percentage of employees salary for which the company contributes a matching contribution	5.00%

PostRetirement_Benefits_Detail

Post-Retirement Benefits (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	item
Post-Retirement Benefits
Number of post-retirement health and life insurance benefit plans	2
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Amortization of loss	($761,000)	($482,000)	($471,000)
Total amount recognized in other comprehensive income	3,727,000	-5,804,000	-139,000
Effects of one-percentage point change in assumed health care cost trend rates
One-Percentage Point Increase, Effect on aggregate service and interest cost	6,000
One-Percentage Point Decrease, Effect on aggregate service and interest cost	-5,000
Retiree Medical Plan
Change in benefit obligation:
Benefit obligation at beginning of year	444,000	518,000	555,000
Interest cost	15,000	19,000	22,000
Actuarial (gain) loss	24,000	-41,000	-4,000
Benefits paid	-47,000	-52,000	-55,000
Benefit obligation at end of year	436,000	444,000	518,000
Change in plan assets:
Employer contribution	47,000	52,000	55,000
Benefits paid	-47,000	-52,000	-55,000
Funded status	-436,000	-444,000	-518,000
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.00%	3.60%	3.80%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	3.60%	3.80%	4.20%
Assumed health care cost trend rates
Health care cost trend rate assumed for next fiscal year (as a percent)	5.00%	5.00%	5.00%
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	15,000	19,000	22,000
Amortization of transition obligation			26,000
Recognized net actuarial loss	6,000	10,000	11,000
Net periodic pension expense	21,000	29,000	59,000
Net (gain) loss	24,000	-41,000	-4,000
Amortization of transition obligation			-26,000
Amortization of loss	-6,000	-10,000	-11,000
Total amount recognized in other comprehensive income	18,000	-51,000	-41,000
Total recognized in net periodic benefit cost and other comprehensive income	39,000	-22,000	18,000
Estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year	9,000,000
Effects of one-percentage point change in assumed health care cost trend rates
One-Percentage Point Increase, Effect on aggregate service and interest cost	1,000
One-Percentage Point Decrease, Effect on aggregate service and interest cost	-1,000
One-Percentage Point Increase, Effect on postretirement benefit obligation	27,000
One-Percentage Point Decrease, Effect on postretirement benefit obligation	-25,000
Estimated future benefit payments (including expected future service as appropriate)
2015	45,000
2016	44,000
2017	43,000
2018	42,000
2019	40,000
2020-2024	166,000
Estimated future benefit payments	380,000
Expected contributions in the next fiscal year
Amount of expected contributions in the next fiscal year	45,000
Retiree Welfare Plan
Change in benefit obligation:
Benefit obligation at beginning of year	2,197,000	2,231,000
Interest cost	85,000	37,000
Actuarial (gain) loss	299,000	-4,000
Benefits paid	-322,000	-145,000
less: federal subsidy on benefits paid		15,000
Benefit obligation at end of year	2,331,000	2,197,000
Change in plan assets:
Employer contribution	250,000	82,000
Participants' contributions	72,000	63,000
Benefits paid	-322,000	-145,000
Funded status	-2,331,000	-2,197,000
Weighted-average assumptions used to determine the benefit obligation
Discount rate (as a percent)	3.45%	4.05%
Weighted-average assumptions used to determine net periodic pension cost
Discount rate (as a percent)	4.05%	3.95%
Assumed health care cost trend rates
Health care cost trend rate assumed for next fiscal year (as a percent)	6.50%	6.75%
Components of net periodic pension cost and other amounts recognized in other comprehensive income
Interest cost	85,000	37,000
Recognized net actuarial loss	96,000	39,000
Net periodic pension expense	180,000	75,000
Net (gain) loss	299,000	-4,000
Amortization of loss	-96,000	-39,000
Total amount recognized in other comprehensive income	203,000	-43,000
Total recognized in net periodic benefit cost and other comprehensive income	383,000	32,000
Estimated net loss for the retiree medical plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year
Estimated net loss for the plan that will be amortized from other comprehensive income into periodic benefit cost over the next fiscal year	115,000
Expected contributions in the next fiscal year
Amount of expected contributions in the next fiscal year	$205,000,000

ShareBased_Compensation_Detail

Share-Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Stock Options
Number of shares
Outstanding at the beginning of the period (in shares)	295,916	340,140	370,207
Granted (in shares)	22,497	23,007	28,224
Exercised (in shares)	-22,878	-65,555	-51,887
Outstanding at the end of the period (in shares)	294,342	295,916	340,140
Exercisable at the end of the period (in shares)	239,417	233,566	267,941
Forfeited (in shares)	-1,180	-220	-6,150
Expired (in shares)	-13	-1,456	-254
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$33.26	$31.79	$30.69
Granted (in dollars per share)	$65.59	$41.45	$31.75
Exercised (in dollars per share)	$31.06	$28.75	$23.99
Outstanding at the end of the period (in dollars per share)	$35.91	$33.26	$31.79
Exercisable at the end of the period (in dollars per share)	$33.17	$32.66	$31.73
Weighted-average fair value of options granted during the year (in dollars per share)	$26.44	$15.66	$11.55
Forfeited (in dollars per share)	$31.97	$27.22	$31.80
Expired (in dollars per share)	$27.22	$22.17	$15.93
Aggregate Intrinsic Value
Outstanding at the end of the period	$9,200,000	$9,800,000	$2,900,000
Exercisable at the end of the period	8,100,000	7,900,000	2,300,000
Exercised at the end of the period	$724,000	$1,800,000	$757,000
Incentive stock options
Share-Based Compensation
Expiration period	10 years
Incentive stock options | Maximum
Share-Based Compensation
Vesting period	4 years
2012 plan
Share-Based Compensation
Number of shares registered under the 2012 plan	1,684,000
2012 plan | Restricted Stock | Maximum
Share-Based Compensation
Number of shares registered under the 2012 plan	817,476
1999, 2004 and 2012 Plans | Incentive stock options
Share-Based Compensation
Vesting percentage	25.00%

ShareBased_Compensation_Detail1

Share-Based Compensation (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$61.49	$41.45	$31.10
Range of exercise prices, high end of range (in dollars per share)	$66.32	$41.45	$40.99
Options Outstanding
Number outstanding (in shares)	294,342
Weighted Average Remaining Contractual Life	4 years 6 months
Weighted Average Exercise Price (in dollars per share)	$35.91
Options Exercisable
Number outstanding (in shares)	239,417
Weighted Average Exercise Price (in dollars per share)	$33.17
Weighted Average Remaining Contractual Life	3 years 8 months 12 days
Restricted Stock
Vesting schedule of shares
2015	35,758
2016	79,261
2017	52,892
2018	34,920
2019	4,467
Thereafter	21,609
Total	228,907	232,547
$25.01 - $30.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$25.01
Range of exercise prices, high end of range (in dollars per share)	$30
Options Outstanding
Number outstanding (in shares)	42,198
Weighted Average Remaining Contractual Life	3 years 8 months 12 days
Weighted Average Exercise Price (in dollars per share)	$27.51
Options Exercisable
Number outstanding (in shares)	42,196
Weighted Average Exercise Price (in dollars per share)	$27.51
$30.01 - $35.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$30.01
Range of exercise prices, high end of range (in dollars per share)	$35
Options Outstanding
Number outstanding (in shares)	142,758
Weighted Average Remaining Contractual Life	4 years 1 month 6 days
Weighted Average Exercise Price (in dollars per share)	$31.80
Options Exercisable
Number outstanding (in shares)	125,296
Weighted Average Exercise Price (in dollars per share)	$31.78
$35.01 - $40.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$35.01
Range of exercise prices, high end of range (in dollars per share)	$40
Options Outstanding
Number outstanding (in shares)	61,482
Weighted Average Remaining Contractual Life	3 years 2 months 12 days
Weighted Average Exercise Price (in dollars per share)	$38.07
Options Exercisable
Number outstanding (in shares)	61,479
Weighted Average Exercise Price (in dollars per share)	$38.07
$40.01 - $66.32
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$66.32
$40.01 - $45.00
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$40.01
Range of exercise prices, high end of range (in dollars per share)	$45
Options Outstanding
Number outstanding (in shares)	25,407
Weighted Average Remaining Contractual Life	7 years 9 months 18 days
Weighted Average Exercise Price (in dollars per share)	$41.41
Options Exercisable
Number outstanding (in shares)	9,384
Weighted Average Exercise Price (in dollars per share)	$41.33
$ 60.01 - $66.32
Share Based Compensation
Range of exercise prices, low end of range (in dollars per share)	$60.01
Range of exercise prices, high end of range (in dollars per share)	$66.32
Options Outstanding
Number outstanding (in shares)	22,497
Weighted Average Remaining Contractual Life	9 years 1 month 6 days
Weighted Average Exercise Price (in dollars per share)	$65.59
Options Exercisable
Number outstanding (in shares)	1,062
Weighted Average Exercise Price (in dollars per share)	$65.21

ShareBased_Compensation_Detail2

Share-Based Compensation (Details 3) (USD $)	12 Months Ended			90 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2009
Employee Stock Purchase Plan
Additional disclosures
Compensation expense	$44,000	$41,000	$38,000
Employee Stock Purchase Plan
Number of shares of common stock registered in connection with the establishment of an Employee Stock Purchase Plan	363,825
Requisite age of employees to be eligible to participate in the plan	21 years
Requisite service period to be eligible to participate in the plan	6 months
Discount rate for eligible employees to purchase company stock (as a percent)	5.00%			15.00%
Minimum | Employee Stock Purchase Plan
Employee Stock Purchase Plan
Shares available for issuance under the plan	130,000
Maximum | Employee Stock Purchase Plan
Employee Stock Purchase Plan
Estimated subscription date fair value (as a percent)	95.00%
Stock Options
Weighted-average assumptions
Dividend yield (as a percent)	1.27%	1.70%	2.10%
Expected life	6 years	6 years	6 years
Risk-free interest rate (as a percent)	2.10%	1.02%	1.06%
Additional disclosures
Total unrecognized compensation cost related to non vested stock option grants	666,000
Weighted-average period over which unrecognized compensation cost is expected to be recognized	1 year
Total fair value of shares vested during the period	413,000	402,000	402,000
Compensation expense	394,000	419,000	382,000
Stock Options | Minimum
Weighted-average assumptions
Expected volatility (as a percent)	43.80%	45.70%	45.80%
Stock Options | Maximum
Weighted-average assumptions
Expected volatility (as a percent)	44.70%	45.70%	45.80%
Restricted Stock
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	2 years 3 months 22 days
Compensation expense	2,300,000	2,200,000	1,300,000
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	232,547
Granted (in shares)	28,014	83,760	47,666
Vested (in shares)	-27,200
Forfeited (in shares)	-4,454
Nonvested at the end of the period (in shares)	228,907	232,547
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$35.15
Granted (in dollars per share)	$60.40	$43.33	$32.27
Vested (in dollars per share)	$40.90
Forfeited (in dollars per share)	$41.45
Nonvested at the end of the period (in dollars per share)	$37.44	$35.15
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted	4,200,000
Total fair value of restricted shares vested during the period	1,200,000	759,000,000,000	1,300,000
Restricted Stock | Employees | Minimum
Additional disclosures
Vesting period	4 years
Restricted Stock | Non-employee directors | Maximum
Additional disclosures
Vesting period	12 years
Restricted Stock Units
Additional disclosures
Weighted-average period over which unrecognized compensation cost is expected to be recognized	1 year 5 months 23 days
Compensation expense	1,200,000	700,000
Restricted Stock Activity and RSUs
Nonvested at the beginning of the period (in shares)	43,820
Granted (in shares)	37,802
Vested (in shares)	-2,314
Nonvested at the end of the period (in shares)	79,308	43,820
Weighted-Average Grant-Date Fair Value
Nonvested at the beginning of the period (in dollars per share)	$51.01
Granted (in dollars per share)	$61.49
Vested (in dollars per share)	$54
Nonvested at the end of the period (in dollars per share)	$55.92	$51.01
Additional disclosures
Total unrecognized compensation cost related to nonvested restricted stock and RSUs granted	$2,700,000
Performance period	3 years
Target RSU award level (as a percent)	70.70%

Stock_Repurchase_Program_Detai

Stock Repurchase Program (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Feb. 29, 2004
Stock repurchase program
Cost of shares repurchased under other arrangements	$917,000	$933,000	$836,000
Announced stock repurchase program
Stock repurchase program
Shares authorized under repurchase program				250,000
Other stock repurchase arrangements
Stock repurchase program
Number of shares repurchased under other arrangements	14,723	17,186	23,532
Cost of shares repurchased under other arrangements	$917,000	$933,000	$836,000

Lease_Commitments_Details

Lease Commitments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Future minimum lease payments
2014	$5,064,000
2015	4,996,000
2016	4,737,000
2017	4,020,000
2018	3,163,000
Thereafter	16,302,000
Total	38,282,000
Total lease expense	$6,200,000	$5,100,000	$3,300,000

Contingent_Liabilities_Details

Contingent Liabilities (Details)	Dec. 31, 2014
	item
Contingent Liabilities
Number of pending litigations	0
Number of pending or threatened litigation	0

Related_Party_Transactions_Det

Related Party Transactions (Details) (SCBT, Directors and executive officers, their immediate families and their business interests, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
SCBT | Directors and executive officers, their immediate families and their business interests
Related Party Transactions
Loans outstanding	$10.70	$10.20
Additional loans made	5.5
Repayments received	5
Related party deposits	$15.50	$14.50

Financial_Instruments_with_Off2

Financial Instruments with Off-Balance Sheet Risk (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2012
Standby letters of credit
Financial instruments, whose contract amounts represent credit risk
Expiration period of standby letters of credit	1 year
SCBT
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	1,277,057	$1,328,044
SCBT | Commitments to extend credit
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	1,259,653	1,299,134
SCBT | Standby letters of credit and financial guarantees
Financial instruments, whose contract amounts represent credit risk
Off balance sheet financial instruments	17,404	$28,910

Fair_Value_Details

Fair Value (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Securities available for sale	$806,766	$786,791
Government-sponsored entities debt
Assets
Securities available for sale	148,197	142,994
State and municipal obligations
Assets
Securities available for sale	137,581	140,651
Common Stock
Assets
Securities available for sale	3,042	3,667
Fair Value.
Assets
Mortgage servicing rights	21,601	20,729
Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	21,601	20,729
Parent company
Assets
Securities available for sale	535	519
Recurring basis
Liabilities
Fair Value Hierarchy Transfers Amount	0	0
Changes in fair value of assets
Transfers between the fair value hierarchy levels	0	0
Recurring basis | Fair Value.
Assets
Derivative financial instruments	3,317	701
Securities available for sale	806,766	786,791
Mortgage servicing rights	21,601	20,729
Fair value of Assets, Total	831,684	808,221
Liabilities
Derivative financial instruments	1,028	1,857
Recurring basis | Fair Value. | Government-sponsored entities debt
Assets
Securities available for sale	148,197	142,994
Recurring basis | Fair Value. | State and municipal obligations
Assets
Securities available for sale	137,581	140,651
Recurring basis | Fair Value. | Mortgage-backed securities
Assets
Securities available for sale	517,946	499,479
Recurring basis | Fair Value. | Common Stock
Assets
Securities available for sale	3,042	3,667
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1)
Assets
Securities available for sale	2,817	3,442
Fair value of Assets, Total	2,817	3,442
Recurring basis | Quoted Prices In Active Markets for Identical Assets (Level 1) | Common Stock
Assets
Securities available for sale	2,817	3,442
Recurring basis | Significant Other Observable Inputs (Level 2)
Assets
Derivative financial instruments	3,317	701
Securities available for sale	803,949	783,349
Fair value of Assets, Total	807,266	784,050
Liabilities
Derivative financial instruments	1,028	1,857
Recurring basis | Significant Other Observable Inputs (Level 2) | Government-sponsored entities debt
Assets
Securities available for sale	148,197	142,994
Recurring basis | Significant Other Observable Inputs (Level 2) | State and municipal obligations
Assets
Securities available for sale	137,581	140,651
Recurring basis | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities
Assets
Securities available for sale	517,946	499,479
Recurring basis | Significant Other Observable Inputs (Level 2) | Common Stock
Assets
Securities available for sale	225	225
Recurring basis | Significant Unobservable Inputs (Level 3)
Assets
Mortgage servicing rights	21,601	20,729
Fair value of Assets, Total	21,601	20,729
Changes in fair value of assets
Fair value of assets at the beginning of the period	20,729	3,851
Mortgage and other loan income	-3,999	172
Acquired in the First Financial acquisition		19,156
Purchases, issuances and settlements, net	4,871	-3,851
Transfers in and/or out of level 3		1,401
Fair value of assets at the end of the period	21,601	20,729
Unrealized losses included in accumulated other comprehensive income related to Level 3 financial assets and liabilities	$0	$0

Fair_Value_Details_2

Fair Value (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Feb. 28, 2015
Fair Value
Other Real Estate	42,726	$64,918	$66,505	$83,871
Subsequent event
Fair Value
Other Real Estate					4,000
Nonrecurring basis | Fair Value. | OREO
Fair Value
Other Real Estate	42,726	64,918
Nonrecurring basis | Fair Value. | Non-acquired impaired loans
Fair Value
Other Real Estate	12,612	13,129
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | OREO
Fair Value
Other Real Estate	42,726	64,918
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Non-acquired impaired loans
Fair Value
Other Real Estate	12,612	$13,129
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | Impaired loans | Minimum
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	0.00%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | Impaired loans | Maximum
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	25.00%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | Impaired loans | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts (as a percent)	5.80%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | OREO | Minimum
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	0.00%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | OREO | Maximum
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	50.00%
Nonrecurring basis | Significant Unobservable Inputs (Level 3) | Discounted appraisals | OREO | Weighted average
Quantitative Information about Level 3 Fair Value Measurements
Collateral discounts and estimated costs to sell (as a percent)	21.89%

Fair_Value_Details_3

Fair Value (Details 3) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Financial liabilities:
Federal funds purchased and securities sold under agreements to repurchase	$221,541,000	$211,401,000
Other borrowings	101,210,000	102,060,000
Fair Value.
Financial assets:
Cash and cash equivalents	417,869,000	479,461,000
Investment securities	827,517,000	813,068,000
Loans, net of allowance for loan losses, and loans held for sale	5,804,951,000	5,742,078,000
FDIC receivable for loss share agreements	7,150,000	48,512,000
Accrued interest receivable	16,366,000	15,024,000
Mortgage servicing rights	21,601,000	20,729,000
Interest rate swap - non-designated hedge	172,000	178,000
Other derivative financial instruments (Mortgage - banking related)	3,145,000	765,000
Financial liabilities:
Deposits	6,193,580,000	6,313,543,000
Federal funds purchased and securities sold under agreements to repurchase	221,541,000	211,401,000
Other borrowings	98,534,000	92,751,000
Accrued interest payable	4,311,000	5,388,000
Interest rate swap - cash flow hedge	856,000	914,000
Interest rate swap - non-designated hedge	172,000
Other derivative financial instruments (Mortgage - banking related)		523,000
Fair Value. | Commitments to extend credit
Financial assets:
Interest rate swap - non-designated hedge		178,000
Financial liabilities:
Off balance sheet financial instruments	27,554,000	15,555,000
Quoted Prices In Active Markets for Identical Assets (Level 1)
Financial assets:
Cash and cash equivalents	417,869,000	479,461,000
Investment securities	13,560,000	16,828,000
Significant Other Observable Inputs (Level 2)
Financial assets:
Investment securities	813,957,000	796,240,000
Loans, net of allowance for loan losses, and loans held for sale	60,270,000	30,586,000
Accrued interest receivable	3,443,000	3,482,000
Interest rate swap - non-designated hedge	172,000	178,000
Other derivative financial instruments (Mortgage - banking related)	3,145,000	765,000
Financial liabilities:
Deposits	6,193,580,000	6,313,543,000
Federal funds purchased and securities sold under agreements to repurchase	221,541,000	211,401,000
Other borrowings	98,534,000	92,751,000
Accrued interest payable	4,311,000	5,388,000
Interest rate swap - cash flow hedge	856,000	914,000
Interest rate swap - non-designated hedge	172,000
Other derivative financial instruments (Mortgage - banking related)		523,000
Significant Other Observable Inputs (Level 2) | Commitments to extend credit
Financial assets:
Interest rate swap - non-designated hedge		178,000
Financial liabilities:
Off balance sheet financial instruments	27,554,000	15,555,000
Significant Unobservable Inputs (Level 3)
Financial assets:
Loans, net of allowance for loan losses, and loans held for sale	5,744,681,000	5,711,492,000
FDIC receivable for loss share agreements	7,150,000	48,512,000
Accrued interest receivable	12,923,000	11,542,000
Mortgage servicing rights	21,601,000	20,729,000
Carrying Amount
Financial assets:
Cash and cash equivalents	417,869,000	479,461,000
Investment securities	826,943,000	812,603,000
Loans, net of allowance for loan losses, and loans held for sale	5,680,688,000	5,652,458,000
FDIC receivable for loss share agreements	22,161,000	86,447,000
Accrued interest receivable	16,366,000	15,024,000
Mortgage servicing rights	21,601,000	20,729,000
Interest rate swap - non-designated hedge	172,000	178,000
Other derivative financial instruments (Mortgage - banking related)	3,145,000	765,000
Financial liabilities:
Deposits	6,461,045,000	6,554,144,000
Federal funds purchased and securities sold under agreements to repurchase	221,541,000	211,401,000
Other borrowings	101,210,000	102,060,000
Accrued interest payable	4,311,000	5,388,000
Interest rate swap - cash flow hedge	856,000	914,000
Interest rate swap - non-designated hedge	172,000
Other derivative financial instruments (Mortgage - banking related)		523,000
Carrying Amount | Commitments to extend credit
Financial assets:
Interest rate swap - non-designated hedge		$178,000

Regulatory_Matters_Details

Regulatory Matters (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Total risk-based capital (to risk-weighted assets):
Actual Amount	$755,484	$752,781
Capital to Risk Weighted Assets	14.43%	14.47%
Minimum Capital Requirement Amount	418,982	416,151
Minimum Capital Requirement Ratio (as a percent)	8.00%	8.00%
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Actual Amount	713,371	706,531
Actual Ratio (as a percent)	13.62%	13.58%
Tier One Risk Based Capital Required for Capital Adequacy	209,491	208,076
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.00%	4.00%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital	713,371	706,531
Tier One Leverage Capital to Average Assets	9.47%	9.30%
Tier One Leverage Capital Required for Capital Adequacy	301,363	303,842
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
SCBT
Total risk-based capital (to risk-weighted assets):
Actual Amount	742,393	741,351
Capital to Risk Weighted Assets	14.18%	14.26%
Minimum Capital Requirement Amount	418,877	415,904
Minimum Capital Requirement Ratio (as a percent)	8.00%	8.00%
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Amount	523,596	519,881
Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions Ratio (as a percent)	10.00%	10.00%
Tier One Risk Based Capital to Risk Weighted Assets [Abstract]
Actual Amount	700,280	695,102
Actual Ratio (as a percent)	13.37%	13.37%
Tier One Risk Based Capital Required for Capital Adequacy	209,438	207,952
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized	314,158	311,928
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.00%	6.00%
Tier One Leverage Capital to Average Assets [Abstract]
Tier One Leverage Capital	700,280	695,102
Tier One Leverage Capital to Average Assets	9.30%	9.16%
Tier One Leverage Capital Required for Capital Adequacy	301,162	303,452
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	$376,452	$379,315
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%

Condensed_Financial_Statements2

Condensed Financial Statements of Parent Company (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
ASSETS.
Cash	$417,869	$479,461	$380,864	$171,425
Investment securities available for sale	806,766	786,791
Other Assets	73,438	47,626
Total assets	7,826,227	7,931,498
Liabilities.	6,841,307	6,950,029
Shareholders' equity	984,920	981,469	507,549	381,780
Total liabilities and shareholders' equity	7,826,227	7,931,498
Parent company
ASSETS.
Cash	13,185	11,757	6,122	6,122	4,545
Investment securities available for sale	535	519
Investment in subsidiaries	1,072,796	1,070,291
Other Assets	1,023	420
Total assets	1,087,539	1,082,987
Liabilities.	102,619	101,518
Shareholders' equity	984,920	981,469
Total liabilities and shareholders' equity	$1,087,539	$1,082,987

Condensed_Financial_Statements3

Condensed Financial Statements of Parent Company (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income:
Income before provision for income taxes	$111,428	$74,574	$45,160
Applicable income tax benefit	-35,991	-25,355	-15,128
Net income	75,437	49,219	30,032
Preferred stock dividends	1,073	1,354
Net income available to common shareholders	74,364	47,865	30,032
Parent company
Income:
Dividends from subsidiaries	89,922	18,135	33,669
Operating income (loss)	583	223	59
Total income	90,505	18,358	33,728
Operating expenses	12,026	7,294	2,482
Income before provision for income taxes	78,479	11,064	31,246
Applicable income tax benefit	3,628	2,360	812
Equity in undistributed earnings of subsidiary (excess distribution)	-6,670	35,795	-2,026
Net income	75,437	49,219	30,032
Preferred stock dividends	1,073	1,354
Net income available to common shareholders	$74,364	$47,865	$30,032

Condensed_Financial_Statements4

Condensed Financial Statements of Parent Company (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Cash flows from operating activities:
Net income	$75,437	$49,219	$30,032
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21,180	17,495	12,092
Share-based Compensation.	3,908	3,322	1,741
Decrease (increase) in other assets	-4,687	-3,320	-894
Decrease in Other Liabilities	-21,159	4,522	-8,921
Net cash provided by operating activities	118,647	242,405	170,525
Cash flows from investing activities:
Net cash outlay for acquisitions		173,503	97,093
Net cash provided by (used in) investing activities	-9,497	418,423	177,858
Cash flows from financing activities:
Common stock issuance	826	781	720
Common stock repurchase	-917	-933	-836
Dividends paid on preferred stock	-1,073	-1,354
Dividends paid on common stock	-19,785	-15,274	-10,244
Stock options exercised	709	1,885	1,244
Net cash used in financing activities	-170,742	-562,231	-138,944
Net increase (decrease) in cash and cash equivalents	-61,592	98,597	209,439
Cash and cash equivalents at beginning of period	479,461	380,864	171,425
Cash and cash equivalents at end of period	417,869	479,461	380,864
Parent company
Cash flows from operating activities:
Net income	75,437	49,219	30,032
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	339	264
Share-based Compensation.	3,908	3,322	1,741
Decrease (increase) in other assets	852	1,231	-83
Decrease in Other Liabilities	-715	-788	-3,511
Undistributed earnings of subsidiary	6,670	-35,795	2,026
Net cash provided by operating activities	86,491	17,453	30,205
Cash flows from investing activities:
Net cash outlay for acquisitions		2,557	-12,357
Proceeds from business divestitures		520
Other, net	-177
Net cash provided by (used in) investing activities	177	3,077	-12,357
Cash flows from financing activities:
Note payable repayment			-7,155
Common stock issuance	826	781	720
Common stock repurchase	-917	-933	-836
Preferred stock redeemed	-65,000
Dividends paid on preferred stock	-1,073	-1,354
Dividends paid on common stock	-19,785	-15,274	-10,244
Stock options exercised	709	1,885	1,244
Net cash used in financing activities	-85,240	-14,895	-16,271
Net increase (decrease) in cash and cash equivalents	1,428	5,635	1,577
Cash and cash equivalents at beginning of period	11,757	6,122	6,122	4,545
Cash and cash equivalents at end of period	$13,185	$11,757	$6,122	$4,545

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009
	item
Derivative Financial Instruments
Fixed rate payable on notional amount (as a percent)	4.06%
Variable rate basis, variable rate receivable on notional amount	three-month LIBOR
After-tax unrealized gain on cash flow hedge in other comprehensive income	$36,000	$365,000
Cash flow hedge liability	856,000,000	914,000
Ineffectiveness in the cash flow hedge	0	0
Collateral provided	1,100,000	950,000
Fair value of non-designated interest rate swaps recorded in other assets and other liabilities	172,000
Additional collateral required relating to a default provision in the derivative relationship	355,000
Termination value of obligations under agreement	179,000
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Number of interest rate swaps contracts that were classified as non-designated hedges acquired through merger	2
Mortgage loan pipeline
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	67,201,000	44,678,000
Expected closures
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	50,760,000	33,508,000
Mortgage loan pipeline commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Net fair value of the open contracts	1,454,000	112,000
Forward commitments
Obligation under forward commitments, the fair value of those obligations along with the fair value of derivative instruments associated with forward commitments
Obligation	57,463,000	36,230,000
Net fair value of the open contracts	1,051,000	296,000
Non-designated hedges
Derivative Financial Instruments
Notional amount	102,000,000
Non-designated hedges | Mortgage servicing rights hedging
Derivative Financial Instruments
Net fair value of the open contracts recorded as an asset	640,000
Interest rate contracts | Cash flow hedge
Derivative Financial Instruments
Notional amount			8,000,000
Interest rate contracts | Non-designated hedges
Derivative Financial Instruments
Notional amount	$4,000,000
Savannah Bancorp ("SAVB")
Derivative Financial Instruments
Number of interest rate swaps held to facilitate a risk management strategy	1

Loan_Servicing_Mortgage_Origin2

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details) (USD $)	0 Months Ended	12 Months Ended
	Jul. 26, 2013	Dec. 31, 2014	Dec. 31, 2013
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage		100.00%	100.00%
Effect on fair value due to change in interest rates
Custodial escrow balances maintained in connection with the loan servicing		$10,100,000	$10,000,000
MSRs
Loans held for sale, loan servicing and mortgage origination
Mortgage servicing rights		21,601,000	20,729,000
Changes in the fair value of MSRs and its offsetting hedge
Increase/(Decrease) in fair value of MSRs		-1,618,000	1,058,000
Decay of MSRs		-2,381,000	-886,000
Gains/(Losses) related to derivatives		3,872,000	-681,000
Net effect on Statements of Income		-127,000	-509,000
Analysis of the activity in the MSRs
Balance at beginning of the period		20,729,000
Additions:
Servicing assets that resulted from transfers of financial assets		4,871,000	1,401,000
Increase (decrease) in fair value due to change in valuation inputs or assumptions		-1,618,000	1,058,000
Decay in fair value:
Due to increases in principal paydowns or runoff		-2,381,000	-886,000
Balance at end of period		21,601,000	20,729,000
Characteristics and sensitivity analysis of the MSR
Weighted average life		6 years 3 months 18 days	6 years 10 months 28 days
Constant Prepayment rate (CPR) (as a percent)		11.40%	10.20%
Weighted average discount rate (as a percent)		9.70%	10.10%
Effect on fair value due to change in interest rates
25 basis point increase		1,365,000	1,059,000
50 basis point increase		2,555,000	1,964,000
25 basis point decrease		-1,562,000	-1,248,000
50 basis point decrease		-3,221,000	-2,255,000
Fixed-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage		99.20%	99.00%
Adjustable-rate mortgage loans
Characteristics and sensitivity analysis of the MSR
Residential Mortgages Serviced for Others Percentage		0.80%	1.00%
First Financial Holdings, Inc. ("First Financial")
Loans held for sale, loan servicing and mortgage origination
Increase in fair value of MSRs		2,300,000,000	2,100,000,000
Contractually specified servicing fees earned		5,400,000	2,300,000
First Financial Holdings, Inc. ("First Financial") | MSRs
Loans held for sale, loan servicing and mortgage origination
Mortgage servicing rights		21,600,000	20,700,000
Changes in the fair value of MSRs and its offsetting hedge
Decay of MSRs		1,600,000	1,100,000
Analysis of the activity in the MSRs
Balance at beginning of the period		20,700,000
Additions:
MSRs acquired in the merger with FFHI	19,156,000
Decay in fair value:
Balance at end of period		$21,600,000	$20,700,000

Loan_Servicing_Mortgage_Origin3

Loan Servicing, Mortgage Origination, and Loans Held for Sale (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loan sales	$596	$782.50
Loan securitizations and loan sales	462	146.5
Percentage of loan securitizations and loan sales	77.50%	18.70%
Residential mortgage loans to be sold in secondary market
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Residential mortgage loans held for sale	$60.30	$30.60
Residential mortgage loans awaiting sale in secondary market | Minimum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	15 days
Residential mortgage loans awaiting sale in secondary market | Maximum
Mortgage loan securitizations, mandatory cash forwards, and whole loan sales
Loans held for sale, settlement period	45 days

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	1 Months Ended	12 Months Ended			0 Months Ended
	Feb. 28, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 07, 2015	Dec. 31, 2011
Subsequent events
Carrying value of other real estate owned		$42,726,000	$64,918,000	$66,505,000		$83,871,000
Assets Coverage Period	1 year
Loss on disposition of covered assets		21,990,000	33,423,000	44,666,000
FFCH Capital Trust I junior subordinated debt
Subsequent events
Fixed interest rate (as a percent)		0.07%	0.07%
Subsequent event
Subsequent events
Number of properties auctioned	75
Carrying value of other real estate owned	4,000,000
Loss on disposition of covered assets	600,000
Subsequent event | FFCH Capital Trust I junior subordinated debt
Subsequent events
Redeemed debt securities					46,400,000
Fixed interest rate (as a percent)					7.00%
Equity portion of the securities					1,400,000
Net interest expense					$2,200,000