Trustmark (TRMK) 10-Q 6 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'TRUSTMARK CORP	'
Entity Central Index Key	'0000036146	'
Current Fiscal Year End Date	'--12-31	'
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	67,439,949
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'

Consolidated_Balance_Sheets_Un

Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks (noninterest-bearing)	$237,497	$345,761
Federal funds sold and securities purchased under reverse repurchase agreements	4,013	7,253
Securities available for sale (at fair value)	2,363,895	2,194,154
Securities held to maturity (fair value: $1,170,213-2014; $1,150,833-2013)	1,169,640	1,168,728
Loans held for sale (LHFS)	135,562	149,169
Loans held for investment (LHFI)	6,333,651	5,798,881
Less allowance for loan losses, LHFI	70,134	66,448
Net LHFI	6,263,517	5,732,433
Acquired loans:	'	'
Noncovered loans	564,542	769,990
Covered loans	27,607	34,216
Less allowance for loan losses, acquired loans	11,949	9,636
Net acquired loans	580,200	794,570
Net LHFI and acquired loans	6,843,717	6,527,003
Premises and equipment, net	200,474	207,283
Mortgage servicing rights	67,090	67,834
Goodwill	365,500	372,851
Identifiable intangible assets	35,357	41,990
Other real estate, excluding covered other real estate	97,037	106,539
Covered other real estate	4,146	5,108
FDIC indemnification asset	8,154	14,347
Other assets	564,234	582,363
Total Assets	12,096,316	11,790,383
Deposits:	'	'
Noninterest-bearing	2,723,480	2,663,503
Interest-bearing	6,789,745	7,196,399
Total deposits	9,513,225	9,859,902
Federal funds purchased and securities sold under repurchase agreements	607,851	251,587
Short-term borrowings	316,666	66,385
Long-term FHLB advances	8,003	8,458
Subordinated notes	49,928	49,904
Junior subordinated debt securities	61,856	61,856
Other liabilities	123,689	137,338
Total Liabilities	10,681,218	10,435,430
Shareholders' Equity	'	'
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 67,439,788 shares - 2014; 67,372,980 shares - 2013	14,051	14,038
Capital surplus	354,251	349,680
Retained earnings	1,081,161	1,034,966
Accumulated other comprehensive loss, net of tax	-34,365	-43,731
Total Shareholders' Equity	1,415,098	1,354,953
Total Liabilities and Shareholders' Equity	$12,096,316	$11,790,383

Consolidated_Balance_Sheets_Un1

Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Assets	'	'
Securities held to maturity, fair value	$1,170,213	$1,150,833
Shareholders' Equity	'	'
Common stock, par value (in dollars per share)	$0	$0
Common stock, authorized (in shares)	250,000,000	250,000,000
Common stock, issued (in shares)	67,439,788	67,372,980
Common stock, outstanding (in shares)	67,439,788	67,372,980

Consolidated_Statements_of_Inc

Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest Income	'	'	'	'
Interest and fees on LHFI & LHFS	$66,934	$65,403	$196,351	$194,572
Interest and fees on acquired loans	23,200	19,183	63,236	52,952
Interest on securities:	'	'	'	'
Taxable	19,712	18,654	58,454	53,740
Tax exempt	1,199	1,274	3,690	3,869
Interest on federal funds sold and securities purchased under reverse repurchase agreements	9	8	20	17
Other interest income	386	372	1,140	1,099
Total Interest Income	111,440	104,894	322,891	306,249
Interest Expense	'	'	'	'
Interest on deposits	3,606	4,970	11,941	14,950
Interest on federal funds purchased and securities sold under repurchase agreements	180	106	366	275
Other interest expense	1,425	1,389	4,163	4,392
Total Interest Expense	5,211	6,465	16,470	19,617
Net Interest Income	106,229	98,429	306,421	286,632
Provision for loan losses, LHFI	3,058	-3,624	2,604	-11,438
Provision for loan losses, acquired loans	1,145	3,292	4,992	1,870
Net Interest Income After Provision for Loan Losses	102,026	98,761	298,825	296,200
Noninterest Income	'	'	'	'
Service charges on deposit accounts	12,743	13,852	36,157	38,462
Bank card and other fees	7,279	8,929	26,254	26,381
Mortgage banking, net	5,842	8,440	18,862	28,318
Insurance commissions	9,240	8,227	25,637	23,483
Wealth management	8,038	7,520	23,883	21,335
Other, net	-160	165	18	-3,171
Security (losses) gains, net	-89	0	300	378
Total Noninterest Income	42,893	47,133	131,111	135,186
Noninterest Expense	'	'	'	'
Salaries and employee benefits	56,675	56,043	169,535	165,040
Services and fees	14,489	13,580	42,197	39,428
Net occupancy - premises	6,817	6,644	19,836	19,302
Equipment expense	5,675	6,271	17,949	18,138
ORE/Foreclosure expense	930	3,079	8,081	12,030
FDIC assessment expense	2,644	2,376	7,528	6,773
Other expense	12,964	13,531	39,447	50,153
Total Noninterest Expense	100,194	101,524	304,573	310,864
Income Before Income Taxes	44,725	44,370	125,363	120,522
Income taxes	11,136	11,336	29,874	31,501
Net Income	$33,589	$33,034	$95,489	$89,021
Earnings Per Share	'	'	'	'
Basic (in dollars per share)	$0.50	$0.49	$1.42	$1.33
Diluted (in dollars per share)	$0.50	$0.49	$1.41	$1.33
Dividends Per Share (in dollars per share)	$0.23	$0.23	$0.69	$0.69

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Comprehensive Income (Unaudited) [Abstract]	'	'	'	'
Net income per consolidated statements of income	$33,589	$33,034	$95,489	$89,021
Unrealized gains (losses) on available for sale securities and transferred securities:	'	'	'	'
Unrealized holding (losses) gains arising during the period	-5,182	-17,461	5,814	-60,596
Less: adjustment for net losses (gains) realized in net income	55	0	-185	-233
Change in net unrealized holding losses on securities transferred to held to maturity	1,011	0	2,744	0
Pension and other postretirement benefit plans:	'	'	'	'
Net change in prior service costs	39	38	116	116
Recognized net loss due to settlement	1,055	518	1,518	842
Recognized net actuarial (gain) loss	-949	1,009	166	3,038
Derivatives:	'	'	'	'
Change in the accumulated gain on effective cash flow hedge derivatives	163	-242	-807	1,212
Other comprehensive (loss) income, net of tax	-3,808	-16,138	9,366	-55,621
Comprehensive income	$29,781	$16,896	$104,855	$33,400

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statements of Changes in Shareholders' Equity (Unaudited) [Abstract]	'	'
Balance, January 1,	$1,354,953	$1,287,369
Net income per consolidated statements of income	95,489	89,021
Other comprehensive income (loss)	9,366	-55,621
Common stock dividends paid	-46,852	-46,674
Common stock issued-net, long-term incentive plans:	'	'
Stock options	0	845
Restricted stock	-795	-963
Excess tax expense from stock-based compensation arrangements	-353	-808
Compensation expense, long-term incentive plans	3,290	2,850
Common stock issued, business combinations	0	53,495
Balance, September 30,	$1,415,098	$1,329,514

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Operating Activities	'	'
Net income	$95,489	$89,021
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Provision for loan losses, net	7,596	-9,568
Depreciation and amortization	27,088	27,800
Net amortization of securities	5,811	5,390
Securities gains, net	-300	-378
Gains on sales of loans, net	-7,853	-24,220
Deferred income tax provision	17,400	14,145
Proceeds from sales of loans held for sale	679,037	1,156,310
Purchases and originations of loans held for sale	-656,031	-1,021,237
Originations and sales of mortgage servicing rights, net	-8,883	-15,551
Increase in bank-owned life insurance	-3,526	-510
Net decrease in other assets	5,289	38,854
Net decrease in other liabilities	-11,087	-3,431
Other operating activities, net	9,552	7,390
Net cash provided by operating activities	159,582	264,015
Investing Activities	'	'
Proceeds from calls and maturities of securities held to maturity	67,352	7,269
Proceeds from calls and maturities of securities available for sale	274,764	642,687
Proceeds from sales of securities available for sale	56,815	67,558
Purchases of securities held to maturity	-63,986	-35,045
Purchases of securities available for sale	-497,549	-1,000,015
Purchase of bank owned life insurance	0	-100,000
Net decrease (increase) in federal funds sold and securities purchased under reverse repurchase agreements	3,240	-821
Net (increase) decrease in loans	-354,281	59,025
Purchases of premises and equipment	-8,555	-12,862
Proceeds from sales of premises and equipment	4,632	3,782
Proceeds from sales of other real estate	37,730	30,389
Investments in tax credit and other partnerships	-5,118	-12,755
Distributions received for investment in tax credit and other partnerships	7,037	0
Net cash received in business combination	0	89,037
Net cash used in investing activities	-477,919	-261,751
Financing Activities	'	'
Net (decrease) increase in deposits	-346,677	150,463
Net increase in federal funds purchased and securities sold under repurchase agreements	356,264	53,636
Net increase (decrease) in short-term borrowings	248,624	-21,174
Payments on long-term FHLB advances	-138	-383
Redemption of junior subordinated debt securities	0	-33,000
Common stock dividends	-46,852	-46,674
Common stock issued-net, long-term incentive plans	-795	-118
Excess tax expense from stock-based compensation arrangements	-353	-808
Net cash provided by financing activities	210,073	101,942
(Decrease) Increase in cash and cash equivalents	-108,264	104,206
Cash and cash equivalents at beginning of period	345,761	231,489
Cash and cash equivalents at end of period	$237,497	$335,695

Business_Basis_of_Financial_St

Business, Basis of Financial Statement Presentation and Principles of Consolidation	9 Months Ended
	Sep. 30, 2014
Business, Basis of Financial Statement Presentation and Principles of Consolidation [Abstract]	'
Business, Basis of Financial Statement Presentation and Principles of Consolidation	'
	Note 1 – Business, Basis of Financial Statement Presentation and Principles of Consolidation
	Trustmark Corporation (Trustmark) is a bank holding company headquartered in Jackson, Mississippi.  Through its subsidiaries, Trustmark operates as a financial services organization providing banking and financial solutions to corporate institutions and individual customers through 207 offices in Alabama, Florida, Mississippi, Tennessee and Texas.
	The consolidated financial statements in this quarterly report on Form 10-Q include the accounts of Trustmark and all other entities in which Trustmark has a controlling financial interest.  All significant intercompany accounts and transactions have been eliminated in consolidation.
	The accompanying unaudited condensed consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X.  Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements and should be read in conjunction with the consolidated financial statements, and notes thereto, included in Trustmark’s 2013 annual report on Form 10-K.
	Operating results for the interim periods disclosed herein are not necessarily indicative of the results that may be expected for a full year or any future period.  Certain reclassifications have been made to prior period amounts to conform to the current period presentation.  In the opinion of Management, all adjustments (consisting of normal recurring accruals) considered necessary for the fair presentation of these consolidated financial statements have been included.   The preparation of financial statements in conformity with these accounting principles requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and income and expense during the reporting period and the related disclosures.  Although Management’s estimates contemplate current conditions and how they are expected to change in the future, it is reasonably possible that in 2014 actual conditions could vary from those anticipated, which could affect our results of operations and financial condition.  The allowance for loan losses, the amount and timing of expected cash flows from acquired loans and the Federal Deposit Insurance Corporation (FDIC) indemnification asset, the valuation of other real estate, the fair value of mortgage servicing rights, the valuation of goodwill and other identifiable intangibles, the status of contingencies and the fair values of financial instruments are particularly subject to change.  Actual results could differ from those estimates.

Business_Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Business Combinations	'
	Note 2 – Business Combinations
	Somerville Bank & Trust Company
	Immediately following the close of business on December 31, 2013, Trustmark National Bank (TNB), a subsidiary of Trustmark, completed its merger with Somerville Bank & Trust Company (Somerville), also a subsidiary of Trustmark, with TNB as the surviving entity in the merger.  Somerville, headquartered in Somerville, Tennessee, provided banking services in the eastern Memphis metropolitan statistical area (MSA) through five offices.  At December 31, 2013, Somerville had total assets of $219.6 million.  TNB and Somerville were both wholly owned subsidiaries of Trustmark; as such, the merger represented a business reorganization between affiliates under common control.
	Oxford, Mississippi Branches
	On July 26, 2013, TNB completed its acquisition of two branches of SOUTHBank, F.S.B. (SOUTHBank), located in Oxford, Mississippi.  As a result of this acquisition, TNB assumed deposit accounts of approximately $11.7 million in addition to purchasing the two physical branch offices.  The transaction was not material to Trustmark’s consolidated financial statements and was not considered a business combination in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 805, “Business Combinations.”
	BancTrust Financial Group, Inc.
	On February 15, 2013, Trustmark completed its merger with BancTrust Financial Group, Inc. (BancTrust), a 26-year-old bank holding company headquartered in Mobile, Alabama.  In accordance with the terms of the definitive agreement, the holders of BancTrust common stock received 0.125 of a share of Trustmark common stock for each share of BancTrust common stock in a tax-free exchange.  Trustmark issued approximately 2.24 million shares of its common stock for all issued and outstanding shares of BancTrust common stock.  The total value of the 2.24 million shares of Trustmark common stock issued to the BancTrust shareholders on the acquisition date was approximately $53.5 million, based on a closing stock price of $23.83 per share of Trustmark common stock on February 15, 2013.  At closing, Trustmark repurchased the $50.0 million of BancTrust preferred stock and associated warrant issued to the U.S. Department of Treasury under the Capital Purchase Program for approximately $52.6 million.
	The acquisition of BancTrust was consistent with Trustmark’s strategic plan to selectively expand the Trustmark franchise. The acquisition provided Trustmark entry into more than 15 markets in Alabama and enhanced the Trustmark franchise in the Florida Panhandle.
	This acquisition was accounted for under the acquisition method in accordance with FASB ASC Topic 805.  Accordingly, the assets and liabilities, both tangible and intangible, were recorded at their estimated fair values as of the acquisition date.
	Trustmark recorded fair value adjustments based on the estimated fair value of certain acquired loans, premises and equipment, net and other real estate.  During 2013, these measurement period adjustments resulted in a decrease in acquired noncovered loans of $6.8 million, a decrease in premises and equipment, net of $627 thousand, a decrease in other real estate of $2.6 million, an increase in the deferred tax asset of $3.4 million and an increase in goodwill of $6.3 million.  Trustmark also recorded an adjustment to transfer $1.6 million of acquired property from premises and equipment, net to other real estate during 2013.  During the first quarter of 2014, Trustmark recorded an additional measurement period adjustment that resulted in a $7.4 million decrease in goodwill with a corresponding increase in the deferred tax asset.  These measurement period adjustments were presented on a retrospective basis, consistent with applicable accounting guidance.  The purchase price allocation was finalized during the first quarter of 2014.
	The statement of assets purchased and liabilities assumed in the BancTrust acquisition is presented below at their adjusted estimated fair values as of the acquisition date of February 15, 2013 ($ in thousands):
	Assets:
	Cash and due from banks	$	141,616
	Securities available for sale		528,016
	Loans held for sale		1,050
	Acquired noncovered loans		944,235
	Premises and equipment, net		54,952
	Identifiable intangible assets		33,498
	Other real estate		40,103
	Other assets		109,423
	Total Assets		1,852,893
	Liabilities:
	Deposits		1,740,254
	Other borrowings		64,051
	Other liabilities		16,761
	Total Liabilities		1,821,066
	Net identified assets acquired at fair value		31,827
	Goodwill		74,247
	Net assets acquired at fair value	$	106,074
	The excess of the consideration paid over the estimated fair value of the net assets acquired was $74.2 million, which was recorded as goodwill under FASB ASC Topic 805.  The identifiable intangible assets acquired represent the core deposit intangible at fair value at the acquisition date.  The core deposit intangible is being amortized on an accelerated basis over the estimated useful life, currently expected to be approximately 10 years.
	Loans, excluding loans held for sale (LHFS), acquired from BancTrust were evaluated under a fair value process involving various degrees of deterioration in credit quality since origination, and also for those loans for which it was probable at acquisition that Trustmark would not be able to collect all contractually required payments.  These loans, with the exception of revolving credit agreements and leases, are referred to as acquired impaired loans and are accounted for in accordance with FASB ASC Topic 310-30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality.”  Refer to Note 5 – Acquired Loans for further information on acquired loans.
	The operations of BancTrust are included in Trustmark’s operating results from February 15, 2013. Trustmark’s noninterest expense during the first quarter of 2013 included non-routine BancTrust transaction expenses totaling approximately $9.4 million (change in control and severance expense of $1.4 million included in salaries and benefits; professional fees, contract termination and other expenses of $7.9 million included in other expense).
	Fair Value of Acquired Financial Instruments
	For financial instruments measured at fair value, Trustmark utilized Level 2 inputs to determine the fair value of securities available for sale, time deposits (included in deposits above) and Federal Home Loan Bank (FHLB) advances.  Level 3 inputs were used to determine the fair value of acquired loans, identifiable intangible assets, and other real estate.  The methodology and significant assumptions used in estimating the fair values of these financial assets and liabilities are as follows:
	Securities Available for Sale
	Estimated fair values for securities available for sale are based on quoted market prices where available.  If quoted market prices are not available, estimated fair values are based on quoted market prices of comparable instruments.
	Acquired Loans
	Fair value of acquired loans is determined using a discounted cash flow model based on assumptions regarding the amount and timing of principal and interest payments, estimated prepayments, estimated default rates, estimated loss severity in the event of defaults and current market rates.
	Identifiable Intangible Assets
	The fair value assigned to the identifiable intangible assets, in this case core deposit intangibles, represent the future economic benefit of the potential cost savings from acquiring core deposits in the acquisition compared to the cost of obtaining alternative funding from market sources.
	Other Real Estate
	Other real estate was initially recorded at its estimated fair value on the acquisition date based on similar market comparable valuations less estimated selling costs.
	Time Deposits
	Time deposits were valued by projecting expected cash flows into the future based on each account’s contracted rate and then determining the present value of those expected cash flows using current rates for deposits with similar maturities.
	FHLB Advances
	FHLB advances were valued by projecting expected cash flows into the future based on each advance’s contracted rate and then determining the present value of those expected cash flows using current rates for advances with similar maturities.
	Please refer to Note 16 – Fair Value for more information on Trustmark’s classification of financial instruments based on valuation inputs within the fair value hierarchy.

Securities_Available_for_Sale_

Securities Available for Sale and Held to Maturity	9 Months Ended
	Sep. 30, 2014
Securities Available for Sale and Held to Maturity [Abstract]	'
Securities Available for Sale and Held to Maturity	'
	Note 3 – Securities Available for Sale and Held to Maturity
	The following table is a summary of the amortized cost and estimated fair value of securities available for sale and held to maturity ($ in thousands):
		Securities Available for Sale												Securities Held to Maturity
	30-Sep-14	Amortized			Gross			Gross			Estimated			Amortized		Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair			Cost		Unrealized			Unrealized			Fair
					Gains			(Losses)			Value					Gains			(Losses)			Value
	U.S. Treasury securities	$	100		$	-		$	-		$	100		$	-	$	-		$	-		$	-
	U.S. Government agency obligations
	Issued by U.S. Government agencies		83,354			729			(1,072	)		83,011			-		-			-			-
	Issued by U.S. Government sponsored agencies		30,719			100			(40	)		30,779			100,767		1,858			(55	)		102,570
	Obligations of states and political subdivisions		159,304			6,200			(41	)		165,463			64,538		3,487			-			68,025
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		12,319			524			(15	)		12,828			13,368		304			(15	)		13,657
	Issued by FNMA and FHLMC		209,455			4,086			(121	)		213,420			11,816		245			-			12,061
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		1,606,565			13,065			(16,492	)		1,603,138			836,966		1,723			(6,106	)		832,583
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		215,284			6,414			(57	)		221,641			142,185		956			(1,824	)		141,317
	Asset-backed securities and structured financial products		32,531			984			-			33,515			-		-			-			-
	Total	$	2,349,631		$	32,102		$	(17,838	)	$	2,363,895		$	1,169,640	$	8,573		$	(8,000	)	$	1,170,213
	31-Dec-13
	U.S. Treasury securities	$	501		$	1		$	-		$	502		$	-	$	-		$	-		$	-
	U.S. Government agency obligations
	Issued by U.S. Government agencies		129,653			1,125			(1,485	)		129,293			-		-			-			-
	Issued by U.S. Government sponsored agencies		40,681			19			(521	)		40,179			100,159		-			(1,580	)		98,579
	Obligations of states and political subdivisions		165,810			6,243			(315	)		171,738			65,987		2,806			(281	)		68,512
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		14,099			459			(84	)		14,474			9,433		142			(72	)		9,503
	Issued by FNMA and FHLMC		239,880			3,147			(1,909	)		241,118			12,724		30			(162	)		12,592
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		1,300,375			12,459			(22,093	)		1,290,741			837,393		-			(15,072	)		822,321
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		235,317			7,278			(423	)		242,172			143,032		85			(3,791	)		139,326
	Asset-backed securities and structured financial products		62,689			1,248			-			63,937			-		-			-			-
	Total	$	2,189,005		$	31,979		$	(26,830	)	$	2,194,154		$	1,168,728	$	3,063		$	(20,958	)	$	1,150,833
	During the fourth quarter of 2013, Trustmark reclassified approximately $1.099 billion of securities available for sale to securities held to maturity.  The securities were transferred at fair value, which became the cost basis for the securities held to maturity.  At the date of transfer, the net unrealized holding loss on the available for sale securities totaled approximately $46.6 million ($28.8 million, net of tax).  The net unrealized holding loss is amortized over the remaining life of the securities as a yield adjustment in a manner consistent with the amortization or accretion of the original purchase premium or discount on the associated security.  There were no gains or losses recognized as a result of the transfer.  At September 30, 2014, the net unamortized, unrealized loss on the transferred securities included in accumulated other comprehensive loss in the accompanying balance sheet totaled approximately $41.9 million ($25.9 million, net of tax).
	During the first quarter of 2014, Trustmark sold its remaining $25.9 million of Collateralized Loan Obligations (CLO) generating a net gain of $389 thousand. These securities were identified as available for sale and had been carried in the asset-backed securities and structured financial products line item in the table shown above.
	Temporarily Impaired Securities
	The table below includes securities with gross unrealized losses segregated by length of impairment ($ in thousands):
		Less than 12 Months						12 Months or More						Total
	30-Sep-14	Estimated			Gross			Estimated			Gross			Estimated		Gross
		Fair Value			Unrealized			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
	U.S. Government agency obligations
	Issued by U.S. Government agencies	$	22,911		$	(147	)	$	31,307		$	(925	)	$	54,218	$	(1,072	)
	Issued by U.S. Government sponsored agencies		14,333			(55	)		9,940			(40	)		24,273		(95	)
	Obligations of states and political subdivisions		2,286			(7	)		4,710			(34	)		6,996		(41	)
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		6,007			(25	)		675			(5	)		6,682		(30	)
	Issued by FNMA and FHLMC		36,918			(121	)		-			-			36,918		(121	)
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		820,242			(8,173	)		420,054			(14,425	)		1,240,296		(22,598	)
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		27,874			(445	)		70,930			(1,436	)		98,804		(1,881	)
	Total	$	930,571		$	(8,973	)	$	537,616		$	(16,865	)	$	1,468,187	$	(25,838	)
	31-Dec-13
	U.S. Government agency obligations
	Issued by U.S. Government agencies	$	68,908		$	(1,485	)	$	-		$	-		$	68,908	$	(1,485	)
	Issued by U.S. Government sponsored agencies		138,478			(2,101	)		-			-			138,478		(2,101	)
	Obligations of states and political subdivisions		55,963			(586	)		796			(10	)		56,759		(596	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		14,732			(155	)		161			(1	)		14,893		(156	)
Issued by FNMA and FHLMC		118,466			(2,071	)		-			-			118,466		(2,071	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		1,534,381			(36,750	)		23,458			(415	)		1,557,839		(37,165	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		177,412			(4,214	)		-			-			177,412		(4,214	)
Total	$	2,108,340		$	(47,362	)	$	24,415		$	(426	)	$	2,132,755	$	(47,788	)
The unrealized losses shown above are due to increases in market rates over the yields available at the time of purchase of the underlying securities and not credit quality.  Because Trustmark does not intend to sell these securities and it is more likely than not that Trustmark will not be required to sell the investments before recovery of their amortized cost bases, which may be maturity, Trustmark does not consider these investments to be other-than-temporarily impaired at September 30, 2014.  There were no other-than-temporary impairments for the nine months ended September 30, 2014 and 2013.
Security Gains and Losses
Gains and losses as a result of calls and dispositions of securities, as well as any associated proceeds, were as follows ($ in thousands):
	Three Months Ended September 30,						Nine Months Ended September 30,
Available for Sale	2014			2013			2014			2013
Proceeds from calls and sales of securities	$	30,540		$	-		$	56,815		$	64,778
Gross realized gains		67			-			456			394
Gross realized losses		(156	)		-			(156	)		(16	)
Realized gains and losses are determined using the specific identification method and are included in noninterest income as security gains, net.
Contractual Maturities
The amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2014, by contractual maturity, are shown below ($ in thousands).  Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
	Securities						Securities
	Available for Sale						Held to Maturity
	Amortized			Estimated			Amortized			Estimated
	Cost			Fair			Cost			Fair
				Value						Value
Due in one year or less	$	15,979		$	16,132		$	3,194		$	3,220
Due after one year through five years		119,935			124,331			11,661			12,394
Due after five years through ten years		83,488			86,120			134,637			138,486
Due after ten years		86,606			86,285			15,813			16,495
		306,008			312,868			165,305			170,595
Mortgage-backed securities		2,043,623			2,051,027			1,004,335			999,618
Total	$	2,349,631		$	2,363,895		$	1,169,640		$	1,170,213

Loans_Held_for_Investment_LHFI

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI	9 Months Ended
	Sep. 30, 2014
Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI [Abstract]	'
Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI	'
	Note 4 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI
	For the periods presented, LHFI consisted of the following ($ in thousands):
			30-Sep-14			31-Dec-13
	Loans secured by real estate:
	Construction, land development and other land		$	580,794		$	596,889
	Secured by 1-4 family residential properties			1,625,480			1,485,564
	Secured by nonfarm, nonresidential properties			1,560,901			1,415,139
	Other			239,819			189,362
	Commercial and industrial loans			1,246,753			1,157,614
	Consumer loans			168,813			165,308
	Other loans			911,091			789,005
	LHFI			6,333,651			5,798,881
	Less allowance for loan losses, LHFI			70,134			66,448
	Net LHFI		$	6,263,517		$	5,732,433
	Loan Concentrations
	Trustmark does not have any loan concentrations other than those reflected in the preceding table, which exceed 10% of total LHFI.  At September 30, 2014, Trustmark's geographic loan distribution was concentrated primarily in its five key market regions: Alabama, Florida, Mississippi, Tennessee and Texas.  Accordingly, the ultimate collectability of a substantial portion of these loans and the recovery of a substantial portion of the carrying amount of other real estate are susceptible to changes in market conditions in these areas.
	Nonaccrual/Impaired LHFI
	At September 30, 2014 and December 31, 2013, the carrying amounts of nonaccrual LHFI, which are individually evaluated for impairment, were $88.3 million and $65.2 million, respectively.  Of this total, all commercial nonaccrual LHFI over $500 thousand were specifically evaluated for impairment (specifically evaluated impaired LHFI) using a fair value approach.  The remaining nonaccrual LHFI were not specifically reviewed and not written down to fair value less cost to sell.  No material interest income was recognized in the income statement on impaired or nonaccrual loans for each of the periods ended September 30, 2014 and 2013.
	All of Trustmark’s specifically evaluated impaired LHFI are collateral dependent loans.  At September 30, 2014 and December 31, 2013, specifically evaluated impaired LHFI totaled $54.1 million and $31.6 million, respectively.  In addition, these specifically evaluated impaired LHFI had a related allowance of $9.0 million and $2.2 million at the end of the respective periods.  For collateral dependent loans, when a loan is deemed impaired the full difference between the carrying amount of the loan and the most likely estimate of the asset’s fair value less cost to sell is charged off.  Charge-offs related to specifically evaluated impaired LHFI totaled $55 thousand and $2.1 million for the first nine months of 2014 and 2013, respectively.  Provision expense on specifically evaluated impaired LHFI totaled $1.6 million for the first nine months of 2014 compared to provision recapture of $3.5 million for the first nine months of 2013.
	Fair value estimates for specifically evaluated impaired LHFI are derived from appraised values based on the current market value or as is value of the property, normally from recently received and reviewed appraisals.  Current appraisals are ordered on an annual basis based on the inspection date.  Appraisals are obtained from state-certified appraisers and are based on certain assumptions, which may include construction or development status and the highest and best use of the property.  These appraisals are reviewed by Trustmark’s Appraisal Review Department to ensure they are acceptable, and values are adjusted down for costs associated with asset disposal.  Once this estimated net realizable value has been determined, the value used in the impairment assessment is updated.  At the time a specifically evaluated impaired LHFI is deemed to be impaired, the full difference between book value and the most likely estimate of the asset’s net realizable value is charged off.  As subsequent events dictate and estimated net realizable values decline, required reserves may be established or further adjustments recorded.
	At September 30, 2014 and December 31, 2013, nonaccrual LHFI not specifically reviewed for impairment and not written down to fair value less cost to sell, totaled $34.2 million and $33.7 million, respectively.  In addition, these nonaccrual LHFI had allocated allowance for loan losses of $1.7 million and $3.0 million at the end of the respective periods.
	The following table details LHFI individually and collectively evaluated for impairment at September 30, 2014 and December 31, 2013 ($ in thousands):
			30-Sep-14
			LHFI Evaluated for Impairment
			Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land		$	20,286		$	560,508			$	580,794
	Secured by 1-4 family residential properties			27,017			1,598,463				1,625,480
	Secured by nonfarm, nonresidential properties			23,885			1,537,016				1,560,901
	Other			1,203			238,616				239,819
	Commercial and industrial loans			15,178			1,231,575				1,246,753
	Consumer loans			160			168,653				168,813
	Other loans			585			910,506				911,091
	Total		$	88,314		$	6,245,337			$	6,333,651
			31-Dec-13
			LHFI Evaluated for Impairment
			Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land		$	13,327		$	583,562			$	596,889
	Secured by 1-4 family residential properties			21,603			1,463,961				1,485,564
	Secured by nonfarm, nonresidential properties			21,809			1,393,330				1,415,139
	Other			1,327			188,035				189,362
	Commercial and industrial loans			6,286			1,151,328				1,157,614
	Consumer loans			151			165,157				165,308
	Other loans			735			788,270				789,005
	Total		$	65,238		$	5,733,643			$	5,798,881
	At September 30, 2014 and December 31, 2013, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):
			30-Sep-14
			LHFI
			Unpaid			With No Related				With an			Total				Related		Average
			Principal			Allowance				Allowance			Carrying				Allowance		Recorded
			Balance			Recorded				Recorded			Amount						Investment
	Loans secured by real estate:
	Construction, land development and other land		$	27,271		$	9,491			$	10,795		$	20,286			$	2,607	$	16,806
	Secured by 1-4 family residential properties			32,478			1,758				25,259			27,017				431		24,310
	Secured by nonfarm, nonresidential properties			26,702			14,420				9,465			23,885				2,163		22,847
	Other			1,468			-				1,203			1,203				57		1,265
	Commercial and industrial loans			16,624			1,916				13,262			15,178				5,203		10,732
	Consumer loans			239			-				160			160				1		156
	Other loans			698			-				585			585				263		661
	Total		$	105,480		$	27,585			$	60,729		$	88,314			$	10,725	$	76,777
			31-Dec-13
			LHFI
		Unpaid			With No Related				With an			Total				Related		Average
		Principal			Allowance				Allowance			Carrying				Allowance		Recorded
		Balance			Recorded				Recorded			Amount						Investment
Loans secured by real estate:
Construction, land development and other land		$	24,350		$	9,817			$	3,510		$	13,327			$	989	$	20,216
Secured by 1-4 family residential properties			26,541			3,095				18,508			21,603				191		24,359
Secured by nonfarm, nonresidential properties			24,879			10,225				11,584			21,809				2,307		20,049
Other			1,375			-				1,327			1,327				122		2,641
Commercial and industrial loans			8,702			2,506				3,780			6,286				1,253		5,513
Consumer loans			286			-				151			151				2		255
Other loans			849			-				735			735				317		767
Total		$	86,982		$	25,643			$	39,595		$	65,238			$	5,181	$	73,800
A troubled debt restructuring (TDR) occurs when a borrower is experiencing financial difficulties, and for related economic or legal reasons, a concession is granted to the borrower that Trustmark would not otherwise consider.  Whatever the form of concession that might be granted by Trustmark, Management’s objective is to enhance collectibility by obtaining more cash or other value from the borrower or by increasing the probability of receipt by granting the concession than by not granting it.  Other concessions may arise from court proceedings or may be imposed by law.  In addition, TDRs also include those credits that are extended or renewed to a borrower who is not able to obtain funds from sources other than Trustmark at a market interest rate for new debt with similar risk.
All loans whose terms have been modified in a troubled debt restructuring are evaluated for impairment under FASB ASC Topic 310. Accordingly, Trustmark measures any loss on the restructuring in accordance with that guidance.  A TDR in which Trustmark receives physical possession of the borrower’s assets, regardless of whether formal foreclosure or repossession proceedings take place, is accounted for in accordance with FASB ASC Subtopic 310-40, “Troubled Debt Restructurings by Creditors.”  Thus, the loan is treated as if assets have been received in satisfaction of the loan and reported as a foreclosed asset.
A TDR may be returned to accrual status if Trustmark is reasonably assured of repayment of principal and interest under the modified terms and the borrower has demonstrated sustained performance under those terms for a period of at least six months. Otherwise, the restructured loan must remain on nonaccrual.
At September 30, 2014, December 31, 2013 and September 30, 2013, LHFI classified as TDRs totaled $12.0 million, $14.8 million and $16.8 million, respectively, and were primarily comprised of credits with interest-only payments for an extended period of time totaling $7.9 million, $11.1 million and $12.6 million, respectively.  The remaining TDRs at September 30, 2014, December 31, 2013 and September 30, 2013 resulted from real estate loans discharged through Chapter 7 bankruptcy that were not reaffirmed or from payment or maturity extensions.
For TDRs, Trustmark had a related loan loss allowance of $1.4 million, $1.6 million and $1.7 million at the end of each respective period.  LHFI classified as TDRs are charged down to the most likely fair value estimate less an estimated cost to sell for collateral dependent loans, which would approximate net realizable value.  Specific charge-offs related to TDRs totaled $62 thousand and $703 thousand for the nine months ended September 30, 2014 and 2013, respectively.
The following table illustrates the impact of modifications classified as TDRs for the three and nine months ended September 30, 2014 and 2013 as well as those TDRs modified within the last 12 months for which there was a payment default during the period ($ in thousands):
		Three Months Ended September 30,
		2014										2013
Troubled Debt Restructurings		Number of Contracts			Pre-Modification				Post-Modification			Number of Contracts				Pre-Modification		Post-Modification
					Outstanding				Outstanding							Outstanding		Outstanding
					Recorded				Recorded							Recorded		Recorded
					Investment				Investment							Investment		Investment
Secured by 1-4 family residential properties			2		$	191			$	191			1			$	32	$	32
		Nine Months Ended September 30,
		2014										2013
Troubled Debt Restructurings		Number of Contracts			Pre-Modification				Post-Modification			Number of Contracts				Pre-Modification		Post-Modification
					Outstanding				Outstanding							Outstanding		Outstanding
					Recorded				Recorded							Recorded		Recorded
					Investment				Investment							Investment		Investment
Secured by 1-4 family residential properties			16		$	1,172			$	1,158			6			$	412	$	358
Secured by nonfarm, nonresidential properties			-			-				-			1				952		952
Commercial and industrial			-			-				-			2				944		937
Other loans			-			-				-			1				2,490		2,490
Total			16		$	1,172			$	1,158			10			$	4,798	$	4,737
		Nine Months Ended September 30,
		2014							2013
Troubled Debt Restructurings that Subsequently Defaulted		Number of Contracts			Recorded Investment				Number of Contracts			Recorded Investment
Construction, land development and other land loans			-		$	-				1		$	9
Secured by 1-4 family residential properties			1			106				4			389
Total			1		$	106				5		$	398
Trustmark’s TDRs have resulted primarily from allowing the borrower to pay interest only for an extended period of time rather than from forgiveness.  Accordingly, as shown above, these TDRs have a similar recorded investment for both the pre-modification and post-modification disclosure.  Trustmark has utilized loans 90 days or more past due to define payment default in determining TDRs that have subsequently defaulted.
The following tables detail LHFI classified as TDRs by loan type for the periods presented ($ in thousands):
		30-Sep-14
		Accruing			Nonaccrual				Total
Construction, land development and other land loans		$	-		$	4,076			$	4,076
Secured by 1-4 family residential properties			1,373			3,940				5,313
Secured by nonfarm, nonresidential properties			-			1,923				1,923
Other loans secured by real estate			-			156				156
Commercial and industrial			-			524				524
Total Troubled Debt Restructurings by Type		$	1,373		$	10,619			$	11,992
		31-Dec-13
		Accruing			Nonaccrual				Total
Construction, land development and other land loans		$	-		$	6,247			$	6,247
Secured by 1-4 family residential properties			1,320			4,201				5,521
Secured by nonfarm, nonresidential properties			-			2,292				2,292
Other loans secured by real estate			-			167				167
Commercial and industrial			-			549				549
Total Troubled Debt Restructurings by Type		$	1,320		$	13,456			$	14,776
		30-Sep-13
		Accruing			Nonaccrual				Total
Construction, land development and other land loans		$	227		$	7,304			$	7,531
Secured by 1-4 family residential properties			1,255			4,965				6,220
Secured by nonfarm, nonresidential properties			-			2,349				2,349
Other loans secured by real estate			-			174				174
Commercial and industrial			-			568				568
Total Troubled Debt Restructurings by Type		$	1,482		$	15,360			$	16,842
Credit Quality Indicators
Trustmark’s loan portfolio credit quality indicators focus on six key quality ratios that are compared against bank tolerances.  The loan indicators are total classified outstanding, total criticized outstanding, nonperforming loans, nonperforming assets, delinquencies and net loan losses.  Due to the homogenous nature of consumer loans, Trustmark does not assign a formal internal risk rating to each credit and therefore the criticized and classified measures are unique to commercial loans.
In addition to monitoring portfolio credit quality indicators, Trustmark also measures how effectively the lending process is being managed and risks are being identified.  As part of an ongoing monitoring process, Trustmark grades the commercial portfolio as it relates to credit file completion and financial statement exceptions, total policy exceptions, collateral exceptions and violations of law as shown below:
●	Credit File Completeness and Financial Statement Exceptions – evaluates the quality and condition of credit files in terms of content, completeness and organization and focuses on efforts to obtain and document sufficient information to determine the quality and status of credits.  Also included is an evaluation of the systems/procedures used to insure compliance with policy such as financial statements, review memos and loan agreements.
●	Underwriting/Policy – evaluates whether credits are adequately analyzed, appropriately structured and properly approved within requirements of bank loan policy.  A properly approved credit is approved by adequate authority in a timely manner with all conditions of approval fulfilled.  Total policy exceptions measure the level of underwriting and other policy exceptions within a loan portfolio.
●	Collateral Documentation – focuses on the adequacy of documentation to support the obligation, perfect Trustmark’s collateral position and protect collateral value.  There are two parts to this measure:
ü	Collateral exceptions are where certain collateral documentation is either not present, is not considered current or has expired.
ü	90 days and over collateral exceptions are where certain collateral documentation is either not present, is not considered current or has expired and the exception has been identified in excess of 90 days.
●	Compliance with Law – focuses on underwriting, documentation, approval and reporting in compliance with banking laws and regulations.  Primary emphasis is directed to the Financial Institutions Reform, Recovery and Enforcement Act of 1989 (FIRREA) and Regulation O requirements.
Commercial Credits
Trustmark has established a loan grading system that consists of ten individual credit risk grades (risk ratings) that encompass a range from loans where the expectation of loss is negligible to loans where loss has been established.  The model is based on the risk of default for an individual credit and establishes certain criteria to delineate the level of risk across the ten unique credit risk grades.  Credit risk grade definitions are as follows:
●	Risk Rate (RR) 1 through RR 6 – Grades one through six represent groups of loans that are not subject to adverse criticism as defined in regulatory guidance.  Loans in these groups exhibit characteristics that represent low to moderate risk measured by using a variety of credit risk criteria such as cash flow coverage, debt service coverage, balance sheet leverage, liquidity, management experience, industry position, prevailing economic conditions, support from secondary sources of repayment and other credit factors that may be relevant to a specific loan.  In general, these loans are supported by properly margined collateral and guarantees of principal parties.
●	Other Assets Especially Mentioned (OAEM) - (RR 7) – a loan that has a potential weakness that if not corrected will lead to a more severe rating.  This rating is for credits that are currently protected but potentially weak because of an adverse feature or condition that if not corrected will lead to a further downgrade.
●	Substandard (RR 8) – a loan that has at least one identified weakness that is well defined.  This rating is for credits where the primary sources of repayment are not viable at the time of evaluation or where either the capital or collateral is not adequate to support the loan and the secondary means of repayment do not provide a sufficient level of support to offset the identified weakness.  Loss potential exists in the aggregate amount of substandard loans but does not necessarily exist in individual loans.
●	Doubtful (RR 9) – a loan with an identified weakness that does not have a valid secondary source of repayment.  Generally these credits have an impaired primary source of repayment and secondary sources are not sufficient to prevent a loss in the credit.  The exact amount of the loss has not been determined at this time.
●	Loss (RR 10) – a loan or a portion of a loan that is deemed to be uncollectible.
By definition, credit risk grades OAEM (RR 7), substandard (RR 8), doubtful (RR 9) and loss (RR 10) are criticized loans while substandard (RR 8), doubtful (RR 9) and loss (RR 10) are classified loans.  These definitions are standardized by all bank regulatory agencies and are generally equally applied to each individual lending institution.  The remaining credit risk grades are considered pass credits and are solely defined by Trustmark.
The credit risk grades represent the probability of default (PD) for an individual credit and as such are not a direct indication of loss given default (LGD).  The LGD aspect of the subject risk ratings is neither uniform across the nine primary commercial loan groups or constant between the geographic areas.  To account for the variance in the LGD aspects of the risk rate system, the loss expectations for each risk rating is integrated into the allowance for loan loss methodology where the calculated LGD is allotted for each individual risk rating with respect to the individual loan group and unique geographic area.  The LGD aspect of the reserve methodology is calculated each quarter as a component of the overall reserve factor for each risk grade by loan group and geographic area.
To enhance this process, loans of a certain size that are rated in one of the criticized categories are routinely reviewed to establish an expectation of loss, if any, and if such examination indicates that the level of reserve is not adequate to cover the expectation of loss, a special reserve or impairment is generally applied.
The distribution of the losses is accomplished by means of a loss distribution model that assigns a loss factor to each risk rating (1 to 9) in each commercial loan pool.  A factor is not applied to risk rate 10 as loans classified as Losses are not carried on Trustmark’s books over quarter-end as they are charged off within the period that the loss is determined.
The expected loss distribution is spread across the various risk ratings by the perceived level of risk for loss.  The nine grade scale described above ranges from a negligible risk of loss to an identified loss across its breadth.  The loss distribution factors are graduated through the scale on a basis proportional to the degree of risk that appears manifest in each individual rating and assumes that migration through the loan grading system will occur.
Each loan officer assesses the appropriateness of the internal risk rating assigned to their credits on an ongoing basis.  Trustmark’s Asset Review area conducts independent credit quality reviews of the majority of Trustmark’s commercial loan portfolio concentrations both on the underlying credit quality of each individual loan portfolio as well as the adherence to Trustmark’s loan policy and the loan administration process.  In general, Asset Review conducts reviews of each lending area within a six to eighteen month window depending on the overall credit quality results of the individual area.
In addition to the ongoing internal risk rate monitoring described above, Trustmark’s Credit Quality Review Committee meets monthly and performs a detailed review and evaluation of all loans of $100 thousand or more that are either delinquent thirty days or more or on nonaccrual.  This review includes recommendations regarding risk ratings, accrual status, charge-offs and appropriate servicing officer as well as evaluation of problem credits for determination of troubled debt restructurings.  In addition, on a quarterly basis the Committee reviews and modifies continuous action plans for all credits rated seven or worse for relationships of $100 thousand or more.
Consumer Credits
Consumer LHFI that do not meet a minimum custom credit score are reviewed quarterly by Management.  The Retail Credit Review Committee reviews the volume and percentage of approvals that did not meet the minimum passing custom score by region, individual location, and officer.  To assure that Trustmark continues to originate quality loans, this process allows Management to make necessary changes such as revisions to underwriting procedures and credit policies, or changes in loan authority to Trustmark personnel.
Trustmark monitors the levels and severity of past due consumer LHFI on a daily basis through its collection activities.  A detailed assessment of consumer LHFI delinquencies is performed monthly at both a product and market level by delivery channel, which incorporates the perceived level of risk at time of underwriting.  Trustmark also monitors its consumer LHFI delinquency trends by comparing them to quarterly industry averages.
The table below illustrates the carrying amount of LHFI by credit quality indicator at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
					Commercial LHFI
					Pass -				Special Mention -			Substandard -				Doubtful -		Subtotal
					Categories 1-6				Category 7			Category 8				Category 9
Loans secured by real estate:
Construction, land development and other land					$	482,131			$	1,774		$	37,353			$	143	$	521,401
Secured by 1-4 family residential properties						129,352				1,692			7,576				263		138,883
Secured by nonfarm, nonresidential properties						1,442,787				31,921			85,081				212		1,560,001
Other						230,604				-			6,700				-		237,304
Commercial and industrial loans						1,210,480				6,007			29,418				847		1,246,752
Consumer loans						198				-			-				-		198
Other loans						890,052				7,670			6,545				586		904,853
					$	4,385,604			$	49,064		$	172,673			$	2,051	$	4,609,392
		Consumer LHFI
		Current			Past Due				Past Due			Nonaccrual				Subtotal		Total LHFI
					30-89 Days				90 Days or More
Loans secured by real estate:
Construction, land development and other land		$	58,866		$	424			$	-		$	103			$	59,393	$	580,794
Secured by 1-4 family residential properties			1,451,174			9,411				2,845			23,167				1,486,597		1,625,480
Secured by nonfarm, nonresidential properties			900			-				-			-				900		1,560,901
Other			2,515			-				-			-				2,515		239,819
Commercial and industrial loans			-			-				1			-				1		1,246,753
Consumer loans			166,314			1,870				272			159				168,615		168,813
Other loans			6,238			-				-			-				6,238		911,091
		$	1,686,007		$	11,705			$	3,118		$	23,429			$	1,724,259	$	6,333,651
		31-Dec-13
					Commercial LHFI
					Pass -				Special Mention -			Substandard -				Doubtful -		Subtotal
					Categories 1-6				Category 7			Category 8				Category 9
Loans secured by real estate:
Construction, land development and other land					$	493,380			$	4,383		$	47,610			$	318	$	545,691
Secured by 1-4 family residential properties						119,640				479			7,839				110		128,068
Secured by nonfarm, nonresidential properties						1,313,470				12,620			87,203				399		1,413,692
Other						178,951				-			6,756				235		185,942
Commercial and industrial loans						1,099,429				18,771			37,209				2,187		1,157,596
Consumer loans						496				-			-				-		496
Other loans						777,395				60			4,126				669		782,250
					$	3,982,761			$	36,313		$	190,743			$	3,918	$	4,213,735
		Consumer LHFI
		Current			Past Due				Past Due			Nonaccrual				Subtotal		Total LHFI
					30-89 Days				90 Days or More
Loans secured by real estate:
Construction, land development and other land		$	50,850		$	131			$	-		$	217			$	51,198	$	596,889
Secured by 1-4 family residential properties			1,327,624			8,937				2,996			17,939				1,357,496		1,485,564
Secured by nonfarm, nonresidential properties			1,439			8				-			-				1,447		1,415,139
Other			3,418			2				-			-				3,420		189,362
Commercial and industrial loans			13			5				-			-				18		1,157,614
Consumer loans			162,348			2,012				302			150				164,812		165,308
Other loans			6,755			-				-			-				6,755		789,005
		$	1,552,447		$	11,095			$	3,298		$	18,306			$	1,585,146	$	5,798,881
Past Due LHFI
LHFI past due 90 days or more totaled $3.8 million and $3.3 million at September 30, 2014 and December 31, 2013, respectively.  The following tables provide an aging analysis of past due and nonaccrual LHFI by class at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
		Past Due
		30-59 Days			60-89 Days				90 Days			Total				Nonaccrual		Current		Total LHFI
									or More (1)									Loans
Loans secured by real estate:
Construction, land development and other land		$	466		$	360			$	268		$	1,094			$	20,286	$	559,414	$	580,794
Secured by 1-4 family residential properties			6,685			2,893				2,845			12,423				27,017		1,586,040		1,625,480
Secured by nonfarm, nonresidential properties			9,787			3,614				-			13,401				23,885		1,523,615		1,560,901
Other			202			65				-			267				1,203		238,349		239,819
Commercial and industrial loans			1,806			97				454			2,357				15,178		1,229,218		1,246,753
Consumer loans			1,627			243				272			2,142				160		166,511		168,813
Other loans			82			27				-			109				585		910,397		911,091
Total		$	20,655		$	7,299			$	3,839		$	31,793			$	88,314	$	6,213,544	$	6,333,651
(1) Past due 90 days or more but still accruing interest.
		31-Dec-13
		Past Due
		30-59 Days			60-89 Days				90 Days			Total				Nonaccrual		Current		Total LHFI
									or More (1)									Loans
Loans secured by real estate:
Construction, land development and other land		$	656		$	267			$	-		$	923			$	13,327	$	582,639	$	596,889
Secured by 1-4 family residential properties			7,322			2,115				2,996			12,433				21,603		1,451,528		1,485,564
Secured by nonfarm, nonresidential properties			1,934			110				-			2,044				21,809		1,391,286		1,415,139
Other			2			3				-			5				1,327		188,030		189,362
Commercial and industrial loans			809			198				-			1,007				6,286		1,150,321		1,157,614
Consumer loans			1,866			146				302			2,314				151		162,843		165,308
Other loans			17			-				-			17				735		788,253		789,005
Total		$	12,606		$	2,839			$	3,298		$	18,743			$	65,238	$	5,714,900	$	5,798,881
(1) Past due 90 days or more but still accruing interest.
Past Due LHFS
LHFS past due 90 days or more totaled $25.0 million and $21.5 million at September 30, 2014 and December 31, 2013, respectively.  LHFS past due 90 days or more are serviced loans eligible for repurchase, which are fully guaranteed by the Government National Mortgage Association (GNMA).  GNMA optional repurchase programs allow financial institutions to buy back individual delinquent mortgage loans that meet certain criteria from the securitized loan pool for which the institution provides servicing.  At the servicer's option and without GNMA's prior authorization, the servicer may repurchase such a delinquent loan for an amount equal to 100 percent of the remaining principal balance of the loan.  This buy-back option is considered a conditional option until the delinquency criteria are met, at which time the option becomes unconditional.  When Trustmark is deemed to have regained effective control over these loans under the unconditional buy-back option, the loans can no longer be reported as sold and must be brought back onto the balance sheet as loans held for sale, regardless of whether Trustmark intends to exercise the buy-back option.  These loans are reported as held for sale with the offsetting liability being reported as short-term borrowings.
Trustmark did not exercise its buy-back option on any delinquent loans serviced for GNMA during the first nine months of 2014.  During the first quarter of 2013, Trustmark exercised its option to repurchase approximately $57.4 million delinquent loans serviced for GNMA. These loans were subsequently sold to a third party under different repurchase provisions.  Trustmark retained the servicing for these loans, which are fully guaranteed by FHA/VA.  As a result of this repurchase and sale, the loans are no longer carried as LHFS.  The transaction resulted in a gain of $534 thousand, which was included in mortgage banking, net for the first nine months of 2013.
Allowance for Loan Losses, LHFI
Trustmark’s allowance for loan loss methodology for commercial LHFI is based upon regulatory guidance from its primary regulator and GAAP.  The methodology segregates the commercial purpose and commercial construction LHFI portfolios into nine separate loan types (or pools) which have similar characteristics such as repayment, collateral and risk profiles.  The nine basic loan pools are further segregated into Trustmark’s five key market regions, Alabama, Florida, Mississippi, Tennessee and Texas, to take into consideration the uniqueness of each market.  A 10-point risk rating system is utilized for each separate loan pool to apply a reserve factor consisting of quantitative and qualitative components to determine the needed allowance by each loan type.  As a result, there are 450 risk rate factors for commercial loan types.  The nine separate pools are shown below:
Commercial Purpose LHFI
●	Real Estate – Owner Occupied
●	Real Estate – Non-Owner Occupied
●	Working Capital
●	Non-Working Capital
●	Land
●	Lots and Development
●	Political Subdivisions
Commercial Construction LHFI
●	1 to 4 Family
●	Non-1 to 4 Family
The quantitative factors of the allowance methodology reflect a twelve-quarter rolling average of net charge-offs by loan type within each key market region.  This allows for a greater sensitivity to current trends, such as economic changes, as well as current loss profiles and creates a more accurate depiction of historical losses.
Qualitative factors used in the allowance methodology include the following:
●	National and regional economic trends and conditions
●	Impact of recent performance trends
●	Experience, ability and effectiveness of management
●	Adherence to Trustmark’s loan policies, procedures and internal controls
●	Collateral, financial and underwriting exception trends
●	Credit concentrations
●	Acquisitions
●	Catastrophe
Each qualitative factor is converted to a scale ranging from 0 (No risk) to 100 (High Risk), other than the last two factors, which are applied on a dollar-for-dollar basis to ensure that the combination of such factors is proportional. The resulting ratings from the individual factors are weighted and summed to establish the weighted-average qualitative factor of a specific loan portfolio within each key market region.  This weighted-average qualitative factor is then distributed over the nine primary loan pools within each key market region based on the ranking by risk of each.
During 2013, Trustmark revised the qualitative portion of the allowance for loan loss methodology for commercial LHFI to incorporate a loan facility risk component.  Loan facility risk embodies the nature, frequency and duration of the repayment structure as it pertains to the actual source of loan repayment.  The underlying loan structure and nature of the credit either is risk neutral for standard structure or adds risk to the credit for any variance that represents additional credit risk from the standard structure.  If the facility structure adds additional credit risk, qualitative reserves are added to individual loans based on their respective commercial loan pools.  Factors considered in assigning facility risk include whether the principal is amortizing or not amortizing, revolving or not revolving, the payment frequency and the duration of the payment structure.  An additional provision of approximately $1.6 million was recorded in 2013 as a result of this revision to the qualitative portion of the allowance for loan loss methodology for commercial LHFI.
For each commercial loan portfolio, the loan facility risk factor’s percentage of the balances are summed and weighted based on commercial loan portfolio rankings.  This weighted-average facility factor is then distributed over the nine primary loan pools within each key market region based on the ranking by risk of each.
During the third quarter 2014, Trustmark revised the qualitative portion of the allowance for loan loss methodology for commercial LHFI to incorporate an additional reserve component for commercial nonaccrual loans under $500 thousand.  A LHFI is considered impaired when, based on current information and events, it is probable that Trustmark will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement.  A formal impairment analysis is performed on all commercial nonaccrual LHFI with an outstanding balance of $500 thousand or more, and based upon this analysis LHFI are written down to net realizable value.  These commercial nonaccrual credits under $500 thousand are generally not currently protected by an identified source of repayment or any viable secondary means of repayment and do not have collateral sufficient to extinguish the credit.  For such loans, it is currently unlikely that full repayment of both principal and interest will be realized.  An additional provision of approximately $822 thousand was recorded in the third quarter of 2014 as result of this revision to the qualitative portion of the allowance for loan loss methodology for commercial LHFI.
The allowance for loan loss methodology segregates the consumer LHFI portfolio into homogeneous pools of loans that contain similar structure, repayment, collateral and risk profiles.  These homogeneous pools of loans are shown below:
●	Residential Mortgage
●	Direct Consumer
●	Auto Finance
●	Junior Lien on 1-4 Family Residential Properties
●	Credit Cards
●	Overdrafts
The historical loss experience for these pools is determined by calculating a 12-quarter rolling average of net charge-offs, which is applied to each pool to establish the quantitative aspect of the methodology.  Where, in Management’s estimation, the calculated loss experience does not fully cover the anticipated loss for a pool, an estimate is also applied to each pool to establish the qualitative aspect of the methodology, which represents the perceived risks across the loan portfolio at the current point in time.  This qualitative methodology utilizes five separate factors made up of unique components that when weighted and combined produce an estimated level of reserve for each of the loan pools.  The five qualitative factors include the following:
●	Economic indicators
●	Performance trends
●	Management experience
●	Lending policy measures
●	Credit concentrations
The risk measure for each factor is converted to a scale ranging from 0 (No risk) to 100 (High Risk) to ensure that the combination of such factors is proportional.  The determination of the risk measurement for each qualitative factor is done for all markets combined.  The resulting estimated reserve factor is then applied to each pool.
During the second quarter 2014, Trustmark revised the qualitative portion of the allowance for loan loss methodology for consumer LHFI to incorporate the use of consumer credit bureau scores developed and provided by an independent third party.  The credit bureau scores reflect the customer’s historical willingness and ability to service their debt.  These credit bureau scores are monitored on an ongoing basis and represent a consumer’s credit payment history with all of their creditors including their repayment performance with Trustmark.  The implementation of this consumer qualitative factor will allow Trustmark to better monitor shifts in risk that are represented in the retail portfolio and ensure that it is reflective in the allowance for loan loss calculation.  An additional provision of approximately $1.4 million was recorded in the second quarter of 2014 as a result of this revision to the qualitative portion of the allowance for loan loss methodology for consumer LHFI.
The resulting ratings from the individual factors are weighted and summed to establish the weighted-average qualitative factor of a specific loan portfolio.  This weighted-average qualitative factor is then applied over the six loan pools.
Changes in the allowance for loan losses, LHFI were as follows for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
Balance at beginning of period		$	66,448		$	78,738
Loans charged-off			(10,052	)		(10,173	)
Recoveries			11,134			11,505
Net recoveries			1,082			1,332
Provision for loan losses, LHFI			2,604			(11,438	)
Balance at end of period		$	70,134		$	68,632
The following tables detail the balance in the allowance for loan losses, LHFI by portfolio segment at September 30, 2014 and 2013, respectively ($ in thousands):
		2014
		Balance			Charge-offs				Recoveries			Provision for				Balance
		January 1,										Loan Losses				September 30,
Loans secured by real estate:
Construction, land development and other land		$	13,165		$	(604	)		$	3,413		$	(6,139	)		$	9,835
Secured by 1-4 family residential properties			9,633			(2,306	)			861			1,986				10,174
Secured by nonfarm, nonresidential properties			19,672			(240	)			400			1,099				20,931
Other			2,080			(277	)			-			571				2,374
Commercial and industrial loans			15,522			(1,787	)			1,321			4,490				19,546
Consumer loans			2,405			(1,304	)			2,760			(1,631	)			2,230
Other loans			3,971			(3,534	)			2,379			2,228				5,044
Total allowance for loan losses, LHFI		$	66,448		$	(10,052	)		$	11,134		$	2,604			$	70,134
									Disaggregated by Impairment Method
									Individually			Collectively				Total
Loans secured by real estate:
Construction, land development and other land									$	2,607		$	7,228			$	9,835
Secured by 1-4 family residential properties										431			9,743				10,174
Secured by nonfarm, nonresidential properties										2,163			18,768				20,931
Other										57			2,317				2,374
Commercial and industrial loans										5,203			14,343				19,546
Consumer loans										1			2,229				2,230
Other loans										263			4,781				5,044
Total allowance for loan losses, LHFI									$	10,725		$	59,409			$	70,134
		2013
		Balance			Charge-offs			Recoveries			Provision for				Balance
		January 1,									Loan Losses				September 30,
Loans secured by real estate:
Construction, land development and other land		$	21,838		$	(1,091	)		$	2,561		$	(7,419	)		$	15,889
Secured by 1-4 family residential properties			12,957			(839	)			363			(3,723	)			8,758
Secured by nonfarm, nonresidential properties			21,096			(572	)			64			(1,828	)			18,760
Other			2,197			(910	)			80			497				1,864
Commercial and industrial loans			14,319			(1,225	)			2,190			2,004				17,288
Consumer loans			3,087			(1,789	)			3,561			(2,256	)			2,603
Other loans			3,244			(3,747	)			2,686			1,287				3,470
Total allowance for loan losses, LHFI		$	78,738		$	(10,173	)		$	11,505		$	(11,438	)		$	68,632
								Disaggregated by Impairment Method
								Individually			Collectively				Total
Loans secured by real estate:
Construction, land development and other land									$	957		$	14,932			$	15,889
Secured by 1-4 family residential properties										260			8,498				8,758
Secured by nonfarm, nonresidential properties										2,733			16,027				18,760
Other										37			1,827				1,864
Commercial and industrial loans										5,393			11,895				17,288
Consumer loans										2			2,601				2,603
Other loans										324			3,146				3,470
Total allowance for loan losses, LHFI									$	9,706		$	58,926			$	68,632

Acquired_Loans

Acquired Loans	9 Months Ended
	Sep. 30, 2014
Acquired Loans [Abstract]	'
Acquired Loans	'
	Note 5 – Acquired Loans
	For the periods presented, acquired loans consisted of the following ($ in thousands):
			30-Sep-14						31-Dec-13
			Noncovered			Covered			Noncovered			Covered
	Loans secured by real estate:
	Construction, land development and other land		$	64,808		$	1,721		$	98,928		$	2,363
	Secured by 1-4 family residential properties			120,366			14,114			157,914			16,416
	Secured by nonfarm, nonresidential properties			214,806			8,270			287,136			10,945
	Other			28,036			2,949			33,948			2,644
	Commercial and industrial loans			103,185			327			149,495			394
	Consumer loans			11,236			-			18,428			119
	Other loans			22,105			226			24,141			1,335
	Acquired loans			564,542			27,607			769,990			34,216
	Less allowance for loan losses, acquired loans			11,136			813			7,249			2,387
	Net acquired loans		$	553,406		$	26,794		$	762,741		$	31,829
	On February 15, 2013, Trustmark completed its merger with BancTrust.  Loans acquired in the BancTrust acquisition were evaluated for evidence of credit deterioration since origination and collectability of contractually required payments.  Trustmark elected to account for all loans acquired in the BancTrust acquisition as acquired impaired loans under FASB ASC Topic 310-30 except for $153.9 million of acquired loans with revolving privileges and acquired commercial leases, which are outside the scope of the guidance.  While not all loans acquired from BancTrust exhibited evidence of significant credit deterioration, accounting for these acquired loans under FASB ASC Topic 310-30 would have materially the same result as the alternative accounting treatment.  During the second and third quarters of 2013, Trustmark recorded fair value adjustments based on the estimated fair value of certain acquired loans which resulted in a net decrease in acquired noncovered loans totaling $6.8 million.  The purchase price allocation for these loans was considered final as of December 31, 2013.
	The following table presents the adjusted fair value of loans acquired as of the date of the BancTrust acquisition ($ in thousands):
	At acquisition date:		15-Feb-13
	Contractually required principal and interest		$	1,256,669
	Nonaccretable difference			201,324
	Cash flows expected to be collected			1,055,345
	Accretable yield			98,394
	FASB ASC Topic 310-20 discount			12,716
	Fair value of loans at acquisition		$	944,235
	The following table presents changes in the net carrying value of the acquired loans for the periods presented ($ in thousands):
			Noncovered						Covered
			Acquired			Acquired			Acquired			Acquired
			Impaired			Not ASC 310-30 (1)			Impaired			Not ASC 310-30 (1)
	Carrying value, net at January 1, 2013		$	72,942		$	6,696		$	45,391		$	2,460
	Loans acquired (2)			790,335			153,900			-			-
	Accretion to interest income			35,538			2,628			5,150			159
	Payments received, net			(229,618	)		(39,281	)		(18,976	)		(819	)
	Other			(24,177	)		(858	)		(3,202	)		(137	)
	Less change in allowance for loan losses, acquired loans			(5,364	)		-			1,803			-
	Carrying value, net at December 31, 2013			639,656			123,085			30,166			1,663
	Accretion to interest income			35,423			1,442			3,010			(1	)
	Payments received, net			(185,880	)		(37,437	)		(7,831	)		126
	Other			(26,284	)		(486	)		(1,429	)		(484	)
	Less change in allowance for loan losses, acquired loans			4,400			(513	)		1,129			445
	Carrying value, net at September 30, 2014		$	467,315		$	86,091		$	25,045		$	1,749
	(1) "Acquired Not ASC 310-30" loans consist of revolving credit agreements and commercial leases that are not in scope for FASB ASC Topic 310-30.
	(2) Adjusted fair value of loans acquired from BancTrust on February 15, 2013.
	Under FASB ASC Topic 310-30, the accretable yield is the excess of expected cash flows at acquisition over the initial fair value of acquired impaired loans and is recorded as interest income over the estimated life of the loans using the effective yield method if the timing and amount of the future cash flows is reasonably estimable.  The following table presents changes in the accretable yield for the nine months ended September 30, 2014 and 2013 ($ in thousands):
			Nine Months Ended September 30,
			2014			2013
	Accretable yield at beginning of period		$	(109,006	)	$	(26,383	)
	Additions due to acquisition (1)			-			(98,394	)
	Accretion to interest income			38,433			28,927
	Disposals			14,520			11,167
	Reclassification to / (from) nonaccretable difference (2)			(26,826	)		(25,772	)
	Accretable yield at end of period		$	(82,879	)	$	(110,455	)
	(1) Accretable yield on loans acquired from BancTrust on February 15, 2013, adjusted for measurement period adjustments.
	(2) Reclassifications from nonaccretable difference are due to lower loss expectations and improvements in expected cash flows.
	The following tables present the components of the allowance for loan losses on acquired loans for the nine months ended September 30, 2014 and 2013 ($ in thousands):
			Noncovered			Covered			Total
	Balance at January 1, 2014		$	7,249		$	2,387		$	9,636
	Provision for loan losses, acquired loans			5,603			(611	)		4,992
	Loans charged-off			(3,310	)		(917	)		(4,227	)
	Recoveries			1,594			(46	)		1,548
	Net charge-offs			(1,716	)		(963	)		(2,679	)
	Balance at September 30, 2014		$	11,136		$	813		$	11,949
			Noncovered			Covered			Total
	Balance at January 1, 2013		$	1,885		$	4,190		$	6,075
Provision for loan losses, acquired loans			3,038			(1,168	)		1,870
Loans charged-off			(3,028	)		(663	)		(3,691	)
Recoveries			1,112			(33	)		1,079
Net charge-offs			(1,916	)		(696	)		(2,612	)
Balance at September 30, 2013		$	3,007		$	2,326		$	5,333
As discussed in Note 4 - Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI, Trustmark has established a loan grading system that consists of ten individual credit risk grades (risk ratings) that encompass a range from loans where the expectation of loss is negligible to loans where loss has been established.  The model is based on the risk of default for an individual credit and establishes certain criteria to segregate the level of risk across the ten unique risk ratings.  These credit quality measures are unique to commercial loans.  Credit quality for consumer loans is based on individual credit scores, aging status of the loan and payment activity.
The tables below illustrate the carrying amount of acquired loans by credit quality indicator at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
					Commercial Loans
					Pass -			Special Mention -			Substandard -			Doubtful -		Subtotal
					Categories 1-6			Category 7			Category 8			Category 9
Noncovered Loans:
Loans secured by real estate:
Construction, land development and other land						24,028			300			30,121			6,295	$	60,744
Secured by 1-4 family residential properties						28,487			855			9,856			399		39,597
Secured by nonfarm, nonresidential properties						164,492			3,818			44,726			1,770		214,806
Other						22,882			94			4,769			284		28,029
Commercial and industrial loans						78,663			861			19,755			3,906		103,185
Consumer loans						4			-			-			-		4
Other loans						19,724			-			2,350			-		22,074
Total noncovered loans						338,280			5,928			111,577			12,654		468,439
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land						140			-			1,039			395		1,574
Secured by 1-4 family residential properties						1,644			248			1,190			-		3,082
Secured by nonfarm, nonresidential properties						4,693			230			3,077			-		8,000
Other						742			115			727			777		2,361
Commercial and industrial loans						159			25			143			-		327
Consumer loans						-			-			-			-		-
Other loans						226			-			-			-		226
Total covered loans						7,604			618			6,176			1,172		15,570
Total acquired loans					$	345,884		$	6,546		$	117,753		$	13,826	$	484,009
		Consumer Loans
		Current			Past Due			Past Due			Nonaccrual			Subtotal		Total
					30-89 Days			90 Days or More								Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development and other land		$	3,695		$	58		$	311		$	-		$	4,064	$	64,808
Secured by 1-4 family residential properties			75,408			2,160			3,061			140			80,769		120,366
Secured by nonfarm, nonresidential properties			-			-			-			-			-		214,806
Other			7			-			-			-			7		28,036
Commercial and industrial loans			-			-			-			-			-		103,185
Consumer loans			11,000			164			68			-			11,232		11,236
Other loans			31			-			-			-			31		22,105
Total noncovered loans			90,141			2,382			3,440			140			96,103		564,542
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land			147			-			-			-			147		1,721
Secured by 1-4 family residential properties			10,133			546			353			-			11,032		14,114
Secured by nonfarm, nonresidential properties			270			-			-			-			270		8,270
Other			554			-			34			-			588		2,949
Commercial and industrial loans			-			-			-			-			-		327
Consumer loans			-			-			-			-			-		-
Other loans			-			-			-			-			-		226
Total covered loans			11,104			546			387			-			12,037		27,607
Total acquired loans		$	101,245		$	2,928		$	3,827		$	140		$	108,140	$	592,149
-1	Total dollar balances are presented in this table; however, these loans are covered by the loss-share agreement with the FDIC.
TNB is at risk for only 20% of the losses incurred on these loans.
		31-Dec-13
					Commercial Loans
					Pass -			Special Mention -			Substandard -			Doubtful -		Subtotal
					Categories 1-6			Category 7			Category 8			Category 9
Noncovered Loans:
Loans secured by real estate:
Construction, land development and other land					$	39,075		$	2,506		$	42,486		$	8,445	$	92,512
Secured by 1-4 family residential properties						33,810			2,983			17,422			538		54,753
Secured by nonfarm, nonresidential properties						184,594			9,027			88,952			4,563		287,136
Other						28,156			1,437			4,071			184		33,848
Commercial and industrial loans						116,818			2,248			24,084			6,039		149,189
Consumer loans						21			-			-			-		21
Other loans						21,881			-			882			1,306		24,069
Total noncovered loans						424,355			18,201			177,897			21,075		641,528
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land						228			-			1,126			771		2,125
Secured by 1-4 family residential properties						1,629			430			1,798			-		3,857
Secured by nonfarm, nonresidential properties						5,446			109			4,723			-		10,278
Other						832			134			717			2		1,685
Commercial and industrial loans						254			28			112			-		394
Consumer loans						-			-			-			-		-
Other loans						271			-			414			646		1,331
Total covered loans						8,660			701			8,890			1,419		19,670
Total acquired loans					$	433,015		$	18,902		$	186,787		$	22,494	$	661,198
		Consumer Loans
		Current			Past Due			Past Due			Nonaccrual			Subtotal		Total
					30-89 Days			90 Days or More								Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development and other land		$	5,813		$	108		$	495		$	-		$	6,416	$	98,928
Secured by 1-4 family residential properties			95,987			3,599			3,466			109			103,161		157,914
Secured by nonfarm, nonresidential properties			-			-			-			-			-		287,136
Other			100			-			-			-			100		33,948
Commercial and industrial loans			306			-			-			-			306		149,495
Consumer loans			18,076			239			92			-			18,407		18,428
Other loans			72			-			-			-			72		24,141
Total noncovered loans			120,354			3,946			4,053			109			128,462		769,990
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land			133			77			28			-			238		2,363
Secured by 1-4 family residential properties			11,179			428			952			-			12,559		16,416
Secured by nonfarm, nonresidential properties			495			-			172			-			667		10,945
Other			617			342			-			-			959		2,644
Commercial and industrial loans			-			-			-			-			-		394
Consumer loans			119			-			-			-			119		119
Other loans			4			-			-			-			4		1,335
Total covered loans			12,547			847			1,152			-			14,546		34,216
Total acquired loans		$	132,901		$	4,793		$	5,205		$	109		$	143,008	$	804,206
-1	Total dollar balances are presented in this table; however, these loans are covered by the loss-share agreement with the FDIC.
TNB is at risk for only 20% of the losses incurred on these loans.
At September 30, 2014 and December 31, 2013, there were no acquired impaired loans accounted for under FASB ASC Topic 310-30 classified as nonaccrual loans.  At September 30, 2014, approximately $988 thousand of acquired loans not accounted for under FASB ASC Topic 310-30 were classified as nonaccrual loans, compared to approximately $2.4 million of acquired loans at December 31, 2013.
The following tables provide an aging analysis of contractually past due and nonaccrual acquired loans, by class at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
		Past Due
		30-59 Days			60-89 Days			90 Days			Total			Nonaccrual (2)		Current		Total Acquired
								or More (1)								Loans		Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development and other land		$	176		$	1,208		$	24,675		$	26,059		$	201	$	38,548	$	64,808
Secured by 1-4 family residential properties			2,211			900			5,143			8,254			214		111,898		120,366
Secured by nonfarm, nonresidential properties			1,984			260			13,520			15,764			-		199,042		214,806
Other			-			-			747			747			-		27,289		28,036
Commercial and industrial loans			381			328			1,512			2,221			495		100,469		103,185
Consumer loans			105			60			68			233			-		11,003		11,236
Other loans			27			-			-			27			-		22,078		22,105
Total noncovered loans			4,884			2,756			45,665			53,305			910		510,327		564,542
Covered loans:
Loans secured by real estate:
Construction, land development and other land			-			-			395			395			-		1,326		1,721
Secured by 1-4 family residential properties			748			4			484			1,236			-		12,878		14,114
Secured by nonfarm, nonresidential properties			1,534			-			-			1,534			-		6,736		8,270
Other			253			-			1,126			1,379			-		1,570		2,949
Commercial and industrial loans			10			-			41			51			78		198		327
Consumer loans			-			-			-			-			-		-		-
Other loans			-			-			-			-			-		226		226
Total covered loans			2,545			4			2,046			4,595			78		22,934		27,607
Total acquired loans		$	7,429		$	2,760		$	47,711		$	57,900		$	988	$	533,261	$	592,149
(1) Past due 90 days or more but still accruing interest.
(2) Acquired loans not accounted for under FASB ASC Topic 310-30.
		31-Dec-13
		Past Due
		30-59 Days			60-89 Days			90 Days			Total			Nonaccrual (2)		Current		Total Acquired
								or More (1)								Loans		Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development and other land		$	1,648		$	468		$	31,744		$	33,860		$	67	$	65,001	$	98,928
Secured by 1-4 family residential properties			3,901			1,166			7,589			12,656			116		145,142		157,914
Secured by nonfarm, nonresidential properties			4,851			3,127			15,421			23,399			461		263,276		287,136
Other			40			-			1,922			1,962			33		31,953		33,948
Commercial and industrial loans			526			217			3,387			4,130			1,170		144,195		149,495
Consumer loans			205			34			92			331			-		18,097		18,428
Other loans			-			-			153			153			20		23,968		24,141
Total noncovered loans			11,171			5,012			60,308			76,491			1,867		691,632		769,990
Covered loans:
Loans secured by real estate:
Construction, land development and other land			87			-			553			640			445		1,278		2,363
Secured by 1-4 family residential properties			515			358			1,142			2,015			-		14,401		16,416
Secured by nonfarm, nonresidential properties			243			1,662			793			2,698			-		8,247		10,945
Other			571			139			2			712			-		1,932		2,644
Commercial and industrial loans			13			-			-			13			41		340		394
Consumer loans			-			-			-			-			-		119		119
Other loans			-			-			646			646			-		689		1,335
Total covered loans			1,429			2,159			3,136			6,724			486		27,006		34,216
Total acquired loans		$	12,600		$	7,171		$	63,444		$	83,215		$	2,353	$	718,638	$	804,206
(1) Past due 90 days or more but still accruing interest.
(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

Mortgage_Banking

Mortgage Banking	9 Months Ended
	Sep. 30, 2014
Mortgage Banking [Abstract]	'
Mortgage Banking	'
	Note 6 – Mortgage Banking
	The activity in mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	67,834		$	47,341
	Origination of servicing assets		8,884			15,551
	Change in fair value:
	Due to market changes		(3,060	)		7,881
	Due to runoff		(6,568	)		(7,623	)
	Balance at end of period	$	67,090		$	63,150
	During the first nine months of 2014 and 2013, Trustmark sold $671.2 million and $1.132 billion, respectively, of residential mortgage loans.  Pretax gains on these sales were recorded to noninterest income in mortgage banking, net and totaled $7.9 million for the first nine months of 2014 compared to $24.2 million for the first nine months of 2013.  Trustmark's mortgage loans serviced for others totaled $5.586 billion at September 30, 2014, compared with $5.461 billion at December 31, 2013.  The table below details the mortgage loans sold and serviced for others for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Federal National Mortgage Association	$	3,556,490		$	3,499,659
	Government National Mortgage Association		1,916,010			1,830,420
	Federal Home Loan Mortgage Corporation		83,250			92,599
	Other		30,023			38,998
	Total mortage loans sold and serviced for others	$	5,585,773		$	5,461,676
	Trustmark is subject to losses in its loan servicing portfolio due to loan foreclosures.  Trustmark has obligations to either repurchase the outstanding principal balance of a loan or make the purchaser whole for the economic benefits of a loan if it is determined that the loan sold was in violation of representations or warranties made by Trustmark at the time of the sale, herein referred to as mortgage loan servicing putback expenses.  Such representations and warranties typically include those made regarding loans that had missing or insufficient file documentation, loans that do not meet investor guidelines, loans in which the appraisal does not support the value and/or loans obtained through fraud by the borrowers or other third parties.  Generally, putback requests may be made until the loan is paid in full.  However, mortgage loans delivered to Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC) on or after January 1, 2013 are subject to the Lending and Selling Representations and Warranties Framework updated in May 2014, which provides certain instances in which a mortgage loan is eligible for relief from selling representations and warranties, such as payment history and quality control review.
	When a putback request is received, Trustmark evaluates the request and takes appropriate actions based on the nature of the request.  Effective January 1, 2013, Trustmark was required by FNMA and FHLMC to provide a response to putback requests within 60 days of the date of receipt.  Currently, putback requests primarily relate to 2009 through 2013 vintage mortgage loans.  The total mortgage loan servicing putback expenses, included in other noninterest expense, incurred by Trustmark during the first nine months of 2014 and 2013 were $450 thousand and $1.0 million, respectively.
	Changes in the reserve for mortgage loan servicing putback expense were as follows for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	1,050		$	7,800
	Provision for putback expenses		450			1,050
	Losses		(403	)		(3,867	)
	Balance at end of period	$	1,097		$	4,983
	During November 2013, Trustmark finalized its agreement with FNMA (the "Resolution Agreement") to resolve its existing and future repurchase and make whole obligations (collectively “Repurchase Obligations”) related to mortgage loans originated between January 1, 2000 and December 31, 2008 and delivered to FNMA.  Under the terms of the Resolution Agreement, Trustmark paid FNMA approximately $3.6 million with respect to the Repurchase Obligations.  Trustmark believes that it was in its best interests to execute the Resolution Agreement in order to bring finality to the loss reimbursement exposure with FNMA for these years and reduce the resources spent on individual file reviews and defending loss reimbursement requests.  The Repurchase Obligations were covered by Trustmark’s existing reserve for mortgage loan servicing putback expenses.
	Mortgage loans covered by the Resolution Agreement executed with FNMA are only subject to putback risk due to borrower fraud or systemic risk.  Trustmark’s exposure to putback requests for loans sold to FNMA, which were originated after 2008, has improved as a result of industry-wide guidelines and process enhancements implemented since that time.  Trustmark’s exposure to putback requests for loans sold to GNMA has improved as a result of declining delinquency ratios.  Please refer to the “Past Due LHFS” section included in Note 4 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI for additional information regarding mortgage loans sold to GNMA.
	There is inherent uncertainty in reasonably estimating the requirement for reserves against future mortgage loan servicing putback expenses.  Future putback expenses are dependent on many subjective factors, including the review procedures of the purchasers and the potential refinance activity on loans sold with servicing released and the subsequent consequences under the representations and warranties.  Trustmark believes that it has appropriately reserved for potential mortgage loan servicing putback requests.

Other_Real_Estate_and_Covered_

Other Real Estate and Covered Other Real Estate	9 Months Ended
	Sep. 30, 2014
Other Real Estate and Covered Other Real Estate [Abstract]	'
Other Real Estate and Covered Other Real Estate	'
	Note 7 –Other Real Estate and Covered Other Real Estate
	Other Real Estate, excluding Covered Other Real Estate
	At September 30, 2014, Trustmark's geographic other real estate distribution was concentrated primarily in its five key market regions: Alabama, Florida, Mississippi, Tennessee and Texas.  The ultimate recovery of a substantial portion of the carrying amount of other real estate, excluding covered other real estate, is susceptible to changes in market conditions in these areas.
	For the periods presented, changes and gains (losses), net on other real estate, excluding covered other real estate, were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	106,539		$	78,189
	Additions (1)		29,972			73,890
	Disposals		(34,641	)		(29,605	)
	Write-downs		(4,833	)		(6,145	)
	Balance at end of period	$	97,037		$	116,329
	Gain (Loss), net on the sale of other real estate included in ORE/Foreclosure expense	$	2,847		$	(110	)
	(1) Additions at September 30, 2013 included $40.1 million of other real estate acquired from BancTrust on February 15, 2013.
	Other real estate, excluding covered other real estate, by type of property consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Construction, land development and other land properties	$	63,127		$	65,273
	1-4 family residential properties		9,998			14,696
	Nonfarm, nonresidential properties		22,251			26,433
	Other real estate properties		1,661			137
	Total other real estate, excluding covered other real estate	$	97,037		$	106,539
	Other real estate, excluding covered other real estate, by geographic location consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Alabama	$	24,256		$	25,912
	Florida		36,608			34,480
	Mississippi (1)		16,419			22,766
	Tennessee (2)		11,347			12,892
	Texas		8,407			10,489
	Total other real estate, excluding covered other real estate	$	97,037		$	106,539
	(1) Mississippi includes Central and Southern Mississippi Regions
	(2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions
	Covered Other Real Estate
	For the nine months ended September 30, 2014 and 2013, changes and (losses) gains, net on covered other real estate were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	5,108		$	5,741
	Transfers from covered loans		690			1,380
	FASB ASC 310-30 adjustment for the residual recorded investment		9			(541	)
	Net transfers from covered loans		699			839
	Disposals		(870	)		(848	)
	Write-downs		(791	)		(640	)
	Balance at end of period	$	4,146		$	5,092
	(Loss) Gain, net on the sale of covered other real estate included in ORE/Foreclosure expense	$	(132	)	$	47
	Covered other real estate by type of property consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Construction, land development and other land properties	$	713		$	733
	1-4 family residential properties		1,267			1,981
	Nonfarm, nonresidential properties		2,166			2,394
	Total covered other real estate	$	4,146		$	5,108

FDIC_Indemnification_Asset

FDIC Indemnification Asset	9 Months Ended
	Sep. 30, 2014
FDIC Indemnification Asset [Abstract]	'
FDIC Indemnification Asset	'
	Note 8 – FDIC Indemnification Asset
	Pursuant to the provisions of the loss-share agreement, TNB may be required to make a true-up payment to the FDIC at the termination of the loss-share agreement should actual losses be less than certain thresholds established in the agreement.  TNB calculates the projected true-up payable to the FDIC quarterly and records a FDIC true-up provision for the present value of the projected true-up payable to the FDIC at the termination of the loss-share agreement.  TNB’s FDIC true-up provision totaled $1.9 million and $1.7 million at September 30, 2014 and December 31, 2013, respectively.
	Trustmark periodically re-estimates the expected cash flows on the acquired covered loans as required by FASB ASC Topic 310-30.  For the first nine months of 2014 and 2013, this analysis resulted in improvements in the estimated future cash flows of the acquired covered loans that remain outstanding as well as lower expected remaining losses on those loans, primarily due to pay-offs of acquired covered loans.  The pay-offs and improvements in the estimated expected cash flows of the acquired covered loans resulted in a reduction of the expected loss-share receivable from the FDIC.  Reductions of the FDIC indemnification asset resulting from improvements in expected cash flows and covered losses based on the re-estimation of acquired covered loans are amortized over the lesser of the remaining life or contractual period of the acquired covered loan as a yield adjustment consistent with the associated acquired covered loan.  Other noninterest income for the first nine months of 2014 and 2013 included $1.6 million and $141 thousand, respectively, of amortization of the FDIC indemnification asset, as a result of improvements in the expected cash flows and lower loss expectations.  During the first nine months of 2014 and 2013, other noninterest income included a reduction of the FDIC indemnification asset of $507 thousand and $3.3 million, respectively, primarily resulting from loan pay-offs partially offset by loan pools of acquired covered loans with increased loss expectations.
	For the nine months ended September 30, 2014 and 2013, changes in the FDIC indemnification asset were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	14,347		$	21,774
	(Amortization) Accretion		(1,633	)		(141	)
	Transfers to FDIC claims		(4,021	)		(1,097	)
	Change in expected cash flows		(373	)		(3,251	)
	Change in FDIC true-up provision		(166	)		(200	)
	Balance at end of period	$	8,154		$	17,085

Deposits

Deposits	9 Months Ended
	Sep. 30, 2014
Deposits [Abstract]	'
Deposits	'
	Note 9 – Deposits
	Deposits consisted of the following for the periods presented ($ in thousands):
		30-Sep-14		31-Dec-13
	Noninterest-bearing demand deposits	$	2,723,480	$	2,663,503
	Interest-bearing demand		1,819,986		1,923,701
	Savings		2,942,663		2,997,294
	Time		2,027,096		2,275,404
	Total	$	9,513,225	$	9,859,902

Defined_Benefit_and_Other_Post

Defined Benefit and Other Postretirement Benefits	9 Months Ended
	Sep. 30, 2014
Defined Benefit and Other Postretirement Benefits [Abstract]	'
Defined Benefit and Other Postretirement Benefits	'
	Note 10 – Defined Benefit and Other Postretirement Benefits
	Qualified Pension Plans
	Trustmark maintains a noncontributory defined benefit pension plan (Trustmark Capital Accumulation Plan), in which substantially all associates employed prior to 2007 participate.  The plan provides retirement benefits that are based on the length of credited service and final average compensation, as defined in the plan and vest upon three years of service.  Plan benefits were frozen during 2009, with the exception of certain associates covered through plans obtained by acquisitions that were subsequently merged into the Trustmark plan.  Associates have not earned additional benefits, except for interest as required by Internal Revenue Service (IRS) regulations, since the plan was frozen.  Associates will retain their previously earned pension benefits.
	As a result of the BancTrust acquisition on February 15, 2013, Trustmark acquired a qualified pension plan (BancTrust Pension Plan), which was frozen prior to the acquisition date.  On January 28, 2014, Trustmark's Board of Directors authorized the termination of the BancTrust Pension Plan effective as of April 15, 2014.  The IRS has been asked to review the BancTrust Pension Plan’s tax qualification at its termination, and it is anticipated that the IRS will issue a determination letter once its review is complete.   A termination notice has been filed with the Pension Benefit Guaranty Corporation (PBGC) and it is not anticipated that the PBGC will raise any issues with respect to the plan’s termination.   Plan assets of the BancTrust Pension Plan will continue to be held in trust until the termination distributions are made.  The termination of the BancTrust Pension Plan is not expected to have a material impact on net periodic pension cost between the plan termination date and the date final termination distributions are made.
	The following table presents information regarding net periodic benefit cost for Trustmark’s qualified pension plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Net periodic benefit cost:
	Service cost	$	123		$	148		$	372		$	446
	Interest cost		1,328			1,252			3,971			3,506
	Expected return on plan assets		(1,563	)		(2,060	)		(4,681	)		(5,660	)
	Recognized net loss due to settlement		1,709			838			2,459			1,363
	Recognized net actuarial (gain) loss		(1,701	)		1,374			(229	)		4,142
	Net periodic benefit cost	$	(104	)	$	1,552		$	1,892		$	3,797
	The range of potential contributions to Trustmark’s qualified pension plans is determined annually by the plans’ actuary in accordance with applicable IRS rules and regulations.  Trustmark's policy is to fund amounts that are sufficient to satisfy the annual minimum funding requirements and are deductible for federal income tax purposes.  The actual amount of the contribution is determined annually based on the plans’ funded status and return on plan assets as of the measurement date, which is December 31.  For the plan year ending December 31, 2014, the minimum required contribution for Trustmark’s qualified pension plan was expected to be $1.8 million prior to the passage of the Highway and Transportation Funding Act (HATFA).  As of September 30, 2014, approximately $1.0 million had been contributed.  HATFA extends the pension funding relief for several more years and is mandatory for 2014.  As a result of HATFA, there is no minimum required contribution for the plan year ending December 31, 2014.  Therefore, it is not anticipated that any additional contributions will be made during 2014.
	Supplemental Retirement Plan
	Trustmark maintains a nonqualified supplemental retirement plan covering directors who elected to defer fees, key executive officers and senior officers.  The plan provides for defined death benefits and/or retirement benefits based on a participant's covered salary.  Trustmark has acquired life insurance contracts on the participants covered under the plan, which may be used to fund future payments under the plan.  The measurement date for the plan is December 31.  As a result of the BancTrust acquisition on February 15, 2013, Trustmark acquired a nonqualified supplemental retirement plan, which plan benefits were frozen prior to the acquisition date.  The following table presents information regarding net periodic benefit cost for Trustmark’s nonqualified supplemental retirement plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Net periodic benefit cost:
	Service cost	$	74		$	150		$	222		$	448
	Interest cost		548			484			1,650			1,452
	Amortization of prior service cost		63			62			188			188
	Recognized net actuarial loss		164			260			497			778
	Net periodic benefit cost	$	849		$	956		$	2,557		$	2,866

Stock_and_Incentive_Compensati

Stock and Incentive Compensation Plans	9 Months Ended
	Sep. 30, 2014
Stock and Incentive Compensation Plans [Abstract]	'
Stock and Incentive Compensation Plans	'
	Note 11 – Stock and Incentive Compensation Plans
	Trustmark has granted stock and incentive compensation awards subject to the provisions of the 1997 Long Term Incentive Plan (the 1997 Plan) and the 2005 Stock and Incentive Compensation Plan (the 2005 Plan).  New awards have not been issued under the 1997 Plan since it was replaced by the 2005 Plan.  At September 30, 2014, no awards remain outstanding under the 1997 Plan.  The 2005 Plan is designed to provide flexibility to Trustmark regarding its ability to motivate, attract and retain the services of key associates and directors.  The 2005 Plan allows Trustmark to make grants of nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units and performance units to key associates and directors.
	Stock Option Grants
	Stock option awards under the 1997 Plan and the 2005 Plan were granted with an exercise price equal to the market price of Trustmark’s stock on the date of grant, and vested equally in annual increments.  No stock options have been granted since 2006, when Trustmark began granting restricted stock awards exclusively.
	Restricted Stock Grants
	Performance Awards
	Trustmark’s performance awards are granted to Trustmark’s executive and senior management team.  Performance awards granted vest based on performance goals of return on average tangible equity (ROATE) and total shareholder return (TSR) compared to a defined peer group.  Performance awards are valued utilizing a Monte Carlo simulation model to estimate fair value of the awards at the grant date.  These awards are recognized using the straight-line method over the requisite service period.  These awards provide for achievement shares if performance measures exceed 100%.  The restricted share agreement provides for voting rights and dividend privileges.
	Time-Vested Awards
	Trustmark’s time-vested awards are granted to Trustmark’s Board of Directors, executive and senior management team.  Time-vested awards are valued utilizing the fair value of Trustmark’s stock at the grant date.  These awards are recognized on the straight-line method over the requisite service period.
	The following table summarizes the stock and incentive plans’ vesting periods and contractual terms in years:
		Vesting			Contractual
		Period			Term
	Stock option awards - 1997 plan		4			10
	Stock option awards - 2005 plan		5			7
	Performance awards (includes acheivement shares for grants after 2013)		3			-
	Achievement shares from performance grants prior to 2013		3			-
	Time-vested awards		3			-
	The following tables summarize the stock and incentive plan activity for the periods presented:
		Three Months Ended September 30, 2014
		Stock			Performance			Time-Vested
		Options			Awards			Awards
	Outstanding/nonvested shares, beginning of period		-			184,133			331,183
	Forfeited		-			-			(1,249	)
	Outstanding/nonvested shares, end of period		-			184,133			329,934
		Nine Months Ended September 30, 2014
		Stock			Performance			Time-Vested
		Options			Awards			Awards
	Outstanding/nonvested shares, beginning of period		105,450			160,520			291,634
	Granted		-			73,726			104,190
	Exercised or released from restriction		-			(38,580	)		(60,706	)
	Expired		(105,450	)		-			-
	Forfeited		-			(11,533	)		(5,184	)
	Outstanding/nonvested shares, end of period		-			184,133			329,934
	The following table presents information regarding compensation expense for stock and incentive plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
	Compensation expense - stock and incentive plans:	2014			2013			2014			2013
	Performance awards	$	267		$	222		$	797		$	620
	Time-vested awards		788			754			2,493			2,230
	Total	$	1,055		$	976		$	3,290		$	2,850

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2014
Contingencies [Abstract]	'
Contingencies	'
	Note 12 – Contingencies
	Lending Related
	Trustmark makes commitments to extend credit and issues standby and commercial letters of credit (letters of credit) in the normal course of business in order to fulfill the financing needs of its customers.  The carrying amount of commitments to extend credit and letters of credit approximates the fair value of such financial instruments.  These amounts are not material to Trustmark’s financial statements.
	Commitments to extend credit are agreements to lend money to customers pursuant to certain specified conditions.  Commitments generally have fixed expiration dates or other termination clauses.  Because many of these commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.  The exposure to credit loss in the event of nonperformance by the other party to the commitments to extend credit is represented by the contract amount of those instruments.  Trustmark applies the same credit policies and standards as it does in the lending process when making these commitments.  The collateral obtained is based upon the assessed creditworthiness of the borrower.  At September 30, 2014 and 2013, Trustmark had unused commitments to extend credit of $2.443 billion and $2.064 billion, respectively.
	Letters of credit are conditional commitments issued by Trustmark to insure the performance of a customer to a third-party.  A financial standby letter of credit irrevocably obligates Trustmark to pay a third-party beneficiary when a customer fails to repay an outstanding loan or debt instrument.  A performance standby letter of credit irrevocably obligates Trustmark to pay a third-party beneficiary when a customer fails to perform some contractual, nonfinancial obligation.  When issuing letters of credit, Trustmark uses essentially the same policies regarding credit risk and collateral which are followed in the lending process. At September 30, 2014 and 2013, Trustmark’s maximum exposure to credit loss in the event of nonperformance by the other party for letters of credit was $137.1 million and $148.5 million, respectively.  These amounts consist primarily of commitments with maturities of less than three years, which have an immaterial carrying value.  Trustmark holds collateral to support standby letters of credit when deemed necessary.  As of September 30, 2014, the fair value of collateral held was $32.7 million.
	Legal Proceedings
	Trustmark’s wholly-owned subsidiary, TNB, has been named as a defendant in two lawsuits related to the collapse of the Stanford Financial Group.  The first is a purported class action complaint that was filed on August 23, 2009 in the District Court of Harris County, Texas, by Peggy Roif Rotstain, Guthrie Abbott, Catherine Burnell, Steven Queyrouze, Jaime Alexis Arroyo Bornstein and Juan C. Olano, on behalf of themselves and all others similarly situated, naming TNB and four other financial institutions unaffiliated with Trustmark as defendants.  The complaint seeks to recover (i) alleged fraudulent transfers from each of the defendants in the amount of fees and other monies received by each defendant from entities controlled by R. Allen Stanford (collectively, the “Stanford Financial Group”) and (ii) damages allegedly attributable to alleged conspiracies by one or more of the defendants with the Stanford Financial Group to commit fraud and/or aid and abet fraud on the asserted grounds that defendants knew or should have known the Stanford Financial Group was conducting an illegal and fraudulent scheme.  Plaintiffs have demanded a jury trial.  Plaintiffs did not quantify damages.  In November 2009, the lawsuit was removed to federal court by certain defendants and then transferred by the United States Panel on Multidistrict Litigation to federal court in the Northern District of Texas (Dallas) where multiple Stanford related matters are being consolidated for pre-trial proceedings.  In May 2010, all defendants (including TNB) filed motions to dismiss the lawsuit, and the motions to dismiss have been fully briefed by all parties.  The court has not yet ruled on TNB’s motion to dismiss.  In August 2010, the court authorized and approved the formation of an Official Stanford Investors Committee (“OSIC”) to represent the interests of Stanford investors and, under certain circumstances, to file legal actions for the benefit of Stanford investors.  In December 2011, the OSIC filed a motion to intervene in this action.  In September 2012, the district court referred the case to a magistrate judge for hearing and determination of certain pretrial issues.  In December 2012, the court granted the OSIC’s motion to intervene, and the OSIC filed an Intervenor Complaint against one of the other defendant financial institutions.  In February 2013, the OSIC filed an additional Intervenor Complaint that asserts claims against TNB and the remaining defendant financial institutions.  The OSIC seeks to recover: (i) alleged fraudulent transfers in the amount of the fees each of the defendants allegedly received from Stanford Financial Group, the profits each of the defendants allegedly made from Stanford Financial Group deposits, and other monies each of the defendants allegedly received from Stanford Financial Group; (ii) damages attributable to alleged conspiracies by each of the defendants with the Stanford Financial Group to commit fraud and/or aid and abet fraud and conversion on the asserted grounds that the defendants knew or should have known the Stanford Financial Group was conducting an illegal and fraudulent scheme; and (iii) punitive damages.  The OSIC did not quantify damages.  In July 2013, all defendants (including TNB) filed motions to dismiss the OSIC’s claims.  The court has not yet ruled on TNB’s motion to dismiss the OSIC’s claims.
	The second Stanford-related lawsuit was filed on December 14, 2009 in the District Court of Ascension Parish, Louisiana, individually by Harold Jackson, Paul Blaine, Carolyn Bass Smith, Christine Nichols, and Ronald and Ramona Hebert naming TNB (misnamed as Trust National Bank) and other individuals and entities not affiliated with Trustmark as defendants.  The complaint seeks to recover the money lost by these individual plaintiffs as a result of the collapse of  the Stanford Financial Group (in addition to other damages) under various theories and causes of action, including negligence, breach of contract, breach of fiduciary duty, negligent misrepresentation, detrimental reliance, conspiracy, and violation of Louisiana’s uniform fiduciary, securities, and racketeering laws.  The complaint does not quantify the amount of money the plaintiffs seek to recover.  In January 2010, the lawsuit was removed to federal court by certain defendants and then transferred by the United States Panel on Multidistrict Litigation to federal court in the Northern District of Texas (Dallas) where multiple Stanford related matters are being consolidated for pre-trial proceedings.  On March 29, 2010, the court stayed the case.  TNB filed a motion to lift the stay, which was denied on February 28, 2012.  In September 2012, the district court referred the case to a magistrate judge for hearing and determination of certain pretrial issues.
	TNB’s relationship with the Stanford Financial Group began as a result of Trustmark’s acquisition of a Houston-based bank in August 2006, and consisted of correspondent banking and other traditional banking services in the ordinary course of business.  Both Stanford-related lawsuits are in their preliminary stages and have been previously disclosed by Trustmark.
	TNB was the defendant in two putative class actions challenging TNB’s practices regarding "overdraft" or "non-sufficient funds" fees charged by TNB in connection with customer use of debit cards, including TNB’s order of processing transactions, notices and calculations of charges, and calculations of fees.  Both of those cases have now been dismissed pursuant to a court-approved class action settlement.  The period has ended in which any party could appeal the order approving the settlement.
	The settlement of $4.0 million, or $2.5 million net of taxes, was included in other noninterest expense for the quarter ended June 30, 2013.  The Settlement Administrator has begun distributing the settlement funds.  The settlement resolved potential claims of more than 100,000 class members.  A total of sixteen customers excluded themselves from the class action settlement.  None of those customers have subsequently asserted any claim or made demands on TNB due to overdraft or non-sufficient funds fees.
	Trustmark and its subsidiaries are also parties to other lawsuits and other claims that arise in the ordinary course of business.  Some of the lawsuits assert claims related to the lending, collection, servicing, investment, trust and other business activities, and some of the lawsuits allege substantial claims for damages.
	All pending legal proceedings described above are being vigorously contested. In the regular course of business, Management evaluates estimated losses or costs related to litigation, and provision is made for anticipated losses whenever Management believes that such losses are probable and can be reasonably estimated.  At the present time, Management believes, based on the advice of legal counsel and Management’s evaluation, that (i) the final resolution of pending legal proceedings described above will not, individually or in the aggregate, have a material impact on Trustmark’s consolidated financial position or results of operations and (ii) a loss in any such case is not probable at this time, and thus no accrual is required under FASB ASC Topic 450-20, “Loss Contingencies.”  In addition, given the preliminary nature of these matters and the lack of any quantification by plaintiffs of the relief being sought, to the extent that a loss in any such matter may be viewed as reasonably possible under FASB ASC Topic 450-20, it is not possible at this time to provide an estimate of any such possible loss (or range of possible loss) for any such matter.

Earnings_Per_Share_EPS

Earnings Per Share (EPS)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share (EPS) [Abstract]	'
Earnings Per Share (EPS)	'
	Note 13 – Earnings Per Share (EPS)
	The following table reflects weighted-average shares used to calculate basic and diluted EPS for the periods presented (in thousands):
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Basic shares		67,440		67,177		67,430		66,779
	Dilutive shares		169		205		150		184
	Diluted shares		67,609		67,382		67,580		66,963
	Weighted-average antidilutive stock awards were excluded in determining diluted EPS.  The following table reflects weighted-average antidilutive stock awards for the periods presented (in thousands):
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Weighted-average antidilutive stock awards		-		270		42		379

Statements_of_Cash_Flows

Statements of Cash Flows	9 Months Ended
	Sep. 30, 2014
Statements of Cash Flows [Abstract]	'
Statements of Cash Flows	'
	Note 14 – Statements of Cash Flows
	The following table reflects specific transaction amounts for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Income taxes paid	$	13,205		$	14,220
	Interest expense paid on deposits and borrowings		16,361			18,656
	Noncash transfers from loans to foreclosed properties (1)		30,671			34,226
	Assets acquired in business combinations		-			1,845,930
	Liabilities assumed in business combinations		-			1,821,066
	(1) Includes transfers from covered loans to foreclosed properties
	During the first quarter of 2014, Trustmark identified an error in its Consolidated Statements of Cash Flows for the nine months ended September 30, 2013 and the year ended December 31, 2013.  Trustmark incorrectly reported its investment in bank owned life insurance during the third quarter of 2013 as an operating activity instead of as an investing activity.  During the third quarter of 2014, Trustmark identified an error in its Consolidated Statements of Cash Flows for the nine months ended September 30, 2013 and the years ended December 31, 2013 and 2012.  Trustmark incorrectly reported its investments in tax credit and other partnerships as an operating activity instead of as an investing activity.  The errors occurred in the reported Consolidated Statements of Cash Flows and had no impact on the cash and cash equivalents at the end of the period within the Consolidated Statements of Cash Flows for the affected, or any prior or subsequent, periods.  The errors did not affect any reported amounts in any other component of Trustmark's consolidated financial statements for the affected, or any prior or subsequent, periods.  Trustmark has evaluated the impact of the errors in accordance with FASB ASC Topic 250-10, “Accounting Changes and Error Corrections,” and deemed these changes immaterial to its consolidated financial statements taken as a whole.  In addition, Management has identified the cause of the errors and taken steps to prevent a future reoccurrence.
	The following table reflects the changes to the Consolidated Statements of Cash Flows for the periods presented ($ in thousands):
		As Reported			Adjustment			As Adjusted
	Nine Months Ended September 30, 2013:
	Net cash provided by operating activities	$	151,260		$	112,755		$	264,015
	Net cash used in investing activities		(148,996	)		(112,755	)		(261,751	)
	Net cash provided by financing activities		101,942			-			101,942
	Increase in cash and cash equivalents		104,206			-			104,206
	Cash and cash equivalents at beginning of period		231,489			-			231,489
	Cash and cash equivalents at end of period	$	335,695		$	-		$	335,695
	Year Ended December 31, 2013:
	Net cash provided by operating activities	$	155,417		$	145,766		$	301,183
	Net cash used in investing activities		(113,201	)		(145,766	)		(258,967	)
	Net cash provided by financing activities		72,056			-			72,056
	Increase in cash and cash equivalents		114,272			-			114,272
	Cash and cash equivalents at beginning of year		231,489			-			231,489
	Cash and cash equivalents at end of year	$	345,761		$	-		$	345,761
	Year Ended December 31, 2012:
	Net cash provided by operating activities	$	92,125		$	20,152		$	112,277
	Net cash provided by (used in) investing activities		193,891			(20,152	)		173,739
	Net cash used in financing activities		(257,152	)		-			(257,152	)
	Increase in cash and cash equivalents		28,864			-			28,864
	Cash and cash equivalents at beginning of year		202,625			-			202,625
	Cash and cash equivalents at end of year	$	231,489		$	-		$	231,489

Shareholders_Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity [Abstract]	'
Shareholders' Equity	'
	Note 15 – Shareholders' Equity
	Regulatory Capital
	Trustmark and TNB are subject to minimum capital requirements, which are administered by the federal bank regulatory agencies.  These capital requirements, as defined by federal regulations, involve quantitative and qualitative measures of assets, liabilities and certain off-balance sheet instruments.  Failure to meet minimum capital requirements can result in certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the financial statements of Trustmark and TNB.  As of September 30, 2014, Trustmark and TNB exceeded all of the minimum capital standards for the parent company and its primary banking subsidiary as established by regulatory requirements.  In addition, TNB met applicable regulatory guidelines to be considered well-capitalized at September 30, 2014.  To be categorized in this manner, TNB must maintain minimum total risk-based capital, Tier 1 risk-based capital and Tier 1 leverage ratios as set forth in the accompanying table.  There are no significant conditions or events that have occurred since September 30, 2014, which Management believes have affected Trustmark’s or TNB's present classification.
	The following table provides Trustmark's and TNB's actual regulatory capital amounts and ratios for the periods presented ($ in thousands):
		Actual						Minimum Regulatory						Minimum Regulatory
		Regulatory Capital						Capital Required						Provision to be
														Well-Capitalized
		Amount			Ratio			Amount			Ratio			Amount			Ratio
	At September 30, 2014:
	Total Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,218,220			14.7	%	$	663,009			8	%		n/	a		n/	a
	Trustmark National Bank		1,194,589			14.44	%		661,737			8	%	$	827,171			10	%
	Tier 1 Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,116,166			13.47	%	$	331,504			4	%		n/	a		n/	a
	Trustmark National Bank		1,094,124			13.23	%		330,868			4	%	$	496,302			6	%
	Tier 1 Capital (to Average Assets)
	Trustmark Corporation	$	1,116,166			9.54	%	$	467,917			4	%		n/	a		n/	a
	Trustmark National Bank		1,094,124			9.37	%		467,135			4	%	$	583,919			5	%
	At December 31, 2013:
	Total Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,122,904			14.18	%	$	633,310			8	%		n/	a		n/	a
	Trustmark National Bank		1,076,391			13.74	%		626,672			8	%	$	783,340			10	%
	Tier 1 Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,026,858			12.97	%	$	316,655			4	%		n/	a		n/	a
	Trustmark National Bank		982,925			12.55	%		313,336			4	%	$	470,004			6	%
	Tier 1 Capital (to Average Assets)
	Trustmark Corporation	$	1,026,858			9.06	%	$	453,487			4	%		n/	a		n/	a
	Trustmark National Bank		982,925			8.76	%		448,665			4	%	$	560,831			5	%
	Accumulated Other Comprehensive Loss
	The following table presents the components of other comprehensive income (loss) and the related tax effects allocated to each component for the nine months ended September 30, 2014 and 2013 ($ in thousands).  Reclassification adjustments related to securities available for sale are included in securities gains, net in the accompanying consolidated statements of income.  The amortization of prior service cost, recognized net loss due to settlement and recognized net actuarial loss on pension and other postretirement benefit plans are included in the computation of net periodic benefit cost (see Note 10 – Defined Benefit and Other Postretirement Benefits for additional details).
		Before Tax			Tax (Expense)			Net of Tax
		Amount			Benefit			Amount
	Nine Months Ended September 30, 2014:
	Securities available for sale and transferred securities:
	Unrealized holding gains arising during the period	$	9,415		$	(3,601	)	$	5,814
	Reclassification adjustment for net gains realized in net income		(300	)		115			(185	)
	Change in net unrealized holding loss on securities transferred to held to maturity		4,444			(1,700	)		2,744
	Total securities available for sale and transferred securities		13,559			(5,186	)		8,373
	Pension and other postretirement benefit plans:
	Net change in prior service costs		188			(72	)		116
	Recognized net loss due to settlement		2,459			(941	)		1,518
	Recognized net actuarial loss		268			(102	)		166
	Total pension and other postretirement benefit plans		2,915			(1,115	)		1,800
	Derivatives:
	Change in accumulated gain on effective cash flow hedge derivatives		(1,307	)		500			(807	)
	Total other comprehensive income	$	15,167		$	(5,801	)	$	9,366
	Nine Months Ended September 30, 2013:
	Securities available for sale:
	Unrealized holding losses arising during the period	$	(98,130	)	$	37,534		$	(60,596	)
	Reclassification adjustment for net gains realized in net income		(378	)		145			(233	)
	Total securities available for sale		(98,508	)		37,679			(60,829	)
	Pension and other postretirement benefit plans:
	Net change in prior service costs		188			(72	)		116
	Recognized net loss due to settlement		1,363			(521	)		842
	Recognized net actuarial loss		4,920			(1,882	)		3,038
	Total pension and other postretirement benefit plans		6,471			(2,475	)		3,996
	Derivatives:
	Change in accumulated gain on effective cash flow hedge derivatives		1,963			(751	)		1,212
	Total other comprehensive loss	$	(90,074	)	$	34,453		$	(55,621	)
	The following table presents the changes in the balances of each component of accumulated other comprehensive loss for the periods ended September 30, 2014 and 2013 ($ in thousands).  All amounts are presented net of tax.
		Securities			Defined Benefit Pension Items			Cash Flow Hedge Derivatives			Total
		Available for Sale
		and Transferred
Securities
Balance at January 1, 2014	$	(25,462	)	$	(19,793	)	$	1,524		$	(43,731	)
Other comprehensive income (loss) before reclassification		8,558			1,800			(807	)		9,551
Amounts reclassified from accumulated other comprehensive loss		(185	)		-			-			(185	)
Net other comprehensive income (loss)		8,373			1,800			(807	)		9,366
Balance at September 30, 2014	$	(17,089	)	$	(17,993	)	$	717		$	(34,365	)
Balance at January 1, 2013	$	44,935		$	(41,540	)	$	-		$	3,395
Other comprehensive (loss) income before reclassification		(60,596	)		3,996			1,212			(55,388	)
Amounts reclassified from accumulated other comprehensive loss		(233	)		-			-			(233	)
Net other comprehensive (loss) income		(60,829	)		3,996			1,212			(55,621	)
Balance at September 30, 2013	$	(15,894	)	$	(37,544	)	$	1,212		$	(52,226	)

Fair_Value

Fair Value	9 Months Ended
	Sep. 30, 2014
Fair Value [Abstract]	'
Fair Value	'
	Note 16 – Fair Value
	Financial Instruments Measured at Fair Value
	The methodologies Trustmark uses in determining the fair values are based primarily on the use of independent, market-based data to reflect a value that would be reasonably expected upon exchange of the position in an orderly transaction between market participants at the measurement date.  The predominant portion of assets that are stated at fair value are of a nature that can be valued using prices or inputs that are readily observable through a variety of independent data providers.  The providers selected by Trustmark for fair valuation data are widely recognized and accepted vendors whose evaluations support the pricing functions of financial institutions, investment and mutual funds, and portfolio managers.  Trustmark has documented and evaluated the pricing methodologies used by the vendors and maintains internal processes that regularly test valuations for anomalies.
	Trustmark utilizes an independent pricing service to advise it on the carrying value of the securities available for sale portfolio.  As part of Trustmark’s procedures, the price provided from the service is evaluated for reasonableness given market changes.  When a questionable price exists, Trustmark investigates further to determine if the price is valid.  If needed, other market participants may be utilized to determine the correct fair value.  Trustmark has also reviewed and confirmed its determinations in thorough discussions with the pricing source regarding their methods of price discovery.
	Mortgage loan commitments are valued based on the securities prices of similar collateral, term, rate and delivery for which the loan is eligible to deliver in place of the particular security.  Trustmark acquires a broad array of mortgage security prices that are supplied by a market data vendor, which in turn accumulates prices from a broad list of securities dealers.  Prices are processed through a mortgage pipeline management system that accumulates and segregates all loan commitment and forward-sale transactions according to the similarity of various characteristics (maturity, term, rate, and collateral).  Prices are matched to those positions that are deemed to be an eligible substitute or offset (i.e., “deliverable”) for a corresponding security observed in the market place.
	Trustmark estimates fair value of MSR through the use of prevailing market participant assumptions and market participant valuation processes.  This valuation is periodically tested and validated against other third-party firm valuations.
	Trustmark obtains the fair value of interest rate swaps from a third-party pricing service that uses an industry standard discounted cash flow methodology.  In addition, credit valuation adjustments are incorporated in the fair values to account for potential nonperformance risk.  In adjusting the fair value of its interest rate swap contracts for the effect of nonperformance risk, Trustmark has considered any applicable credit enhancements such as collateral postings, thresholds, mutual puts, and guarantees.  In conjunction with the FASB’s fair value measurement guidance, Trustmark made an accounting policy election to measure the credit risk of these derivative financial instruments, which are subject to master netting agreements, on a net basis by counterparty portfolio.
	Trustmark has determined that the majority of the inputs used to value its interest rate swaps offered to qualified commercial borrowers fall within Level 2 of the fair value hierarchy, while the credit valuation adjustments associated with these derivatives utilize Level 3 inputs, such as estimates of current credit spreads.  Trustmark has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its interest rate swaps and has determined that the credit valuation adjustment is not significant to the overall valuation of these derivatives.  As a result, Trustmark classifies its interest rate swap valuations in Level 2 of the fair value hierarchy.
	Trustmark also utilizes exchange-traded derivative instruments such as Treasury note futures contracts and option contracts to achieve a fair value return that offsets the changes in fair value of MSR attributable to interest rates.  Fair values of these derivative instruments are determined from quoted prices in active markets for identical assets therefore allowing them to be classified within Level 1 of the fair value hierarchy.  In addition, Trustmark utilizes derivative instruments such as interest rate lock commitments in its mortgage banking area which lack observable inputs for valuation purposes resulting in their inclusion in Level 3 of the fair value hierarchy.
	At this time, Trustmark presents no fair values that are derived through internal modeling.  Should positions requiring fair valuation arise that are not relevant to existing methodologies, Trustmark will make every reasonable effort to obtain market participant assumptions, or independent evaluation.
	Financial Assets and Liabilities
	The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value ($ in thousands).  There were no transfers between fair value levels for the nine months ended September 30, 2014 and the year ended December 31, 2013.
		30-Sep-14
		Total			Level 1			Level 2		Level 3
	U.S. Treasury securities	$	100		$	-		$	100	$	-
	U.S. Government agency obligations		113,790			-			113,790		-
	Obligations of states and political subdivisions		165,463			-			165,463		-
	Mortgage-backed securities		2,051,027			-			2,051,027		-
	Asset-backed securities and structured financial products		33,515			-			33,515		-
	Securities available for sale		2,363,895			-			2,363,895		-
	Loans held for sale		135,562			-			135,562		-
	Mortgage servicing rights		67,090			-			-		67,090
	Other assets - derivatives		5,034			(500	)		4,194		1,340
	Other liabilities - derivatives		3,746			181			3,565		-
		31-Dec-13
		Total			Level 1			Level 2		Level 3
	U.S. Treasury securities	$	502		$	-		$	502	$	-
	U.S. Government agency obligations		169,472			-			169,472		-
	Obligations of states and political subdivisions		171,738			-			171,738		-
	Mortgage-backed securities		1,788,505			-			1,788,505		-
	Asset-backed securities and structured financial products		63,937			-			63,937		-
	Securities available for sale		2,194,154			-			2,194,154		-
	Loans held for sale		149,169			-			149,169		-
	Mortgage servicing rights		67,834			-			-		67,834
	Other assets - derivatives		4,994			(2,579	)		7,447		126
	Other liabilities - derivatives		3,298			581			2,717		-
	The changes in Level 3 assets measured at fair value on a recurring basis for the periods ended September 30, 2014 and 2013 are summarized as follows ($ in thousands):
		MSR			Other Assets - Derivatives
	Balance, January 1, 2014	$	67,834		$	126
	Total net (losses) gains included in Mortgage banking, net (1)		(9,628	)		3,508
	Additions		8,884			-
	Sales		-			(2,294	)
	Balance, September 30, 2014	$	67,090		$	1,340
	The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held at September 30, 2014	$	(3,060	)	$	807
	Balance, January 1, 2013	$	47,341		$	2,284
	Total net gains included in Mortgage banking, net (1)		258			7,558
	Additions		15,551			-
	Sales		-			(7,795	)
	Balance, September 30, 2013	$	63,150		$	2,047
	The amount of total gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held at September 30, 2013	$	7,881		$	954
	(1) Total net (losses) gains included in net income relating to MSR includes changes in fair value due to market changes and due to runoff.
	Trustmark may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis in accordance with GAAP.  Assets at September 30, 2014, which have been measured at fair value on a nonrecurring basis, include impaired LHFI.  Loans for which it is probable Trustmark will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement are considered impaired.  Impaired LHFI have been determined to be collateral dependent and assessed using a fair value approach.  Specific allowances for impaired LHFI are based on comparisons of the recorded carrying values of the loans to the present value of the estimated cash flows of these loans at each loan’s original effective interest rate, the fair value of the collateral or the observable market prices of the loans.  Fair value estimates begin with appraised values based on the current market value or as-is value of the property being appraised, normally from recently received and reviewed appraisals.  Appraisals are obtained from state-certified appraisers and are based on certain assumptions, which may include construction or development status and the highest and best use of the property.  These appraisals are reviewed by Trustmark’s Appraisal Review Department to ensure they are acceptable.  Appraised values are adjusted down for costs associated with asset disposal.  At September 30, 2014, Trustmark had outstanding balances of $54.1 million in impaired LHFI that were specifically identified for evaluation and written down to fair value of the underlying collateral less cost to sell based on the fair value of the collateral or other unobservable input compared to $31.6 million at December 31, 2013.  These specifically evaluated impaired LHFI are classified as Level 3 in the fair value hierarchy.  Impaired LHFI are periodically reviewed and evaluated for additional impairment and adjusted accordingly based on the same factors identified above.
	Please refer to Note 2 – Business Combinations, for financial assets and liabilities acquired, which were measured at fair value on a nonrecurring basis in accordance with GAAP.
	Nonfinancial Assets and Liabilities
	Certain nonfinancial assets measured at fair value on a nonrecurring basis include foreclosed assets (upon initial recognition or subsequent impairment), nonfinancial assets and nonfinancial liabilities measured at fair value in the second step of a goodwill impairment test, and intangible assets and other nonfinancial long-lived assets measured at fair value for impairment assessment.
	Other real estate, excluding covered other real estate, includes assets that have been acquired in satisfaction of debt through foreclosure and is recorded at the lower of cost or estimated fair value less the estimated cost of disposition.  Fair value is based on independent appraisals and other relevant factors.  In the determination of fair value subsequent to foreclosure, Management also considers other factors or recent developments, such as changes in market conditions from the time of valuation and anticipated sales values considering plans for disposition, which could result in an adjustment to lower the collateral value estimates indicated in the appraisals.  At September 30, 2014, Trustmark's geographic other real estate distribution was concentrated primarily in its five key market regions: Alabama, Florida, Mississippi, Tennessee and Texas.  The ultimate recovery of a substantial portion of the carrying amount of other real estate, excluding covered other real estate, is susceptible to changes in market conditions in these areas.  Periodic revaluations are classified as Level 3 in the fair value hierarchy since assumptions are used that may not be observable in the market.
	Certain foreclosed assets, upon initial recognition, are remeasured and reported at fair value through a charge-off to the allowance for loan losses based upon the fair value of the foreclosed asset.  The fair value of a foreclosed asset, upon initial recognition, is estimated using Level 3 inputs based on adjusted observable market data.  Foreclosed assets measured at fair value upon initial recognition totaled $30.0 million (utilizing Level 3 valuation inputs) during the nine months ended September 30, 2014 compared with $73.9 million for the same period in 2013.  Foreclosed assets measured at fair value upon initial recognition for the nine months ended September 30, 2013 included $40.1 million of other real estate acquired from BancTrust.  In connection with the measurement and initial recognition of the foregoing foreclosed assets, Trustmark recognized charge-offs of the allowance for loan losses totaling $9.3 million and $9.2 million for the first nine months of 2014 and 2013, respectively.  Other than foreclosed assets measured at fair value upon initial recognition, $40.6 million of foreclosed assets were remeasured during the first nine months of 2014, requiring write-downs of $4.8 million to reach their current fair values compared to $35.0 million of foreclosed assets that were remeasured during the first nine months of 2013, requiring write-downs of $6.1 million.
	Fair Value of Financial Instruments
	FASB ASC Topic 825, “Financial Instruments,” requires disclosure of the fair value of financial assets and financial liabilities, including those financial assets and financial liabilities that are not measured and reported at fair value on a recurring basis or non-recurring basis. A detailed description of the valuation methodologies used in estimating the fair value of financial instruments can be found in Note 19 – Fair Value included in Item 8 of Trustmark’s Form 10-K Annual Report for the year ended December 31, 2013.
	The carrying amounts and estimated fair values of financial instruments at September 30, 2014 and December 31, 2013, are as follows ($ in thousands):
		30-Sep-14						31-Dec-13
		Carrying			Estimated			Carrying		Estimated
		Value			Fair Value			Value		Fair Value
Financial Assets:
Level 2 Inputs:
Cash and short-term investments	$	241,510		$	241,510		$	353,014	$	353,014
Securities held to maturity		1,169,640			1,170,213			1,168,728		1,150,833
Level 3 Inputs:
Net LHFI		6,263,517			6,348,938			5,732,433		5,787,408
Net acquired loans		580,200			580,200			794,570		794,570
FDIC indemnification asset		8,154			8,154			14,347		14,347
Financial Liabilities:
Level 2 Inputs:
Deposits		9,513,225			9,518,584			9,859,902		9,866,118
Short-term liabilities		924,517			924,517			317,972		317,972
Long-term FHLB advances		8,003			8,014			8,458		8,474
Subordinated notes		49,928			53,665			49,904		53,387
Junior subordinated debt securities		61,856			46,392			61,856		40,206
In cases where quoted market prices are not available, fair values are generally based on estimates using present value techniques.  Trustmark’s premise in present value techniques is to represent the fair values on a basis of replacement value of the existing instrument given observed market rates on the measurement date.  These techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows.  In that regard, the derived fair value estimates for those assets or liabilities cannot be necessarily substantiated by comparison to independent markets and, in many cases, may not be realizable in immediate settlement of the instruments.  The estimated fair value of financial instruments with immediate and shorter-term maturities (generally 90 days or less) is assumed to be the same as the recorded book value.  All nonfinancial instruments, by definition, have been excluded from these disclosure requirements.  Accordingly, the aggregate fair value amounts presented do not represent the underlying value of Trustmark.
The fair values of net LHFI are estimated for portfolios of loans with similar financial characteristics.  For variable rate LHFI that reprice frequently with no significant change in credit risk, fair values are based on carrying values.  The fair values of certain mortgage LHFI, such as 1-4 family residential properties, are based on quoted market prices of similar loans sold in conjunction with securitization transactions, adjusted for differences in loan characteristics.  The fair values of other types of LHFI are estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities.  The processes for estimating the fair value of net LHFI described above does not represent an exit price under FASB ASC Topic 820, “Fair Value Measurements and Disclosures,” and such an exit price could potentially produce a different fair value estimate at September 30, 2014 and December 31, 2013.

Derivative_Financial_Instrumen

Derivative Financial Instruments	9 Months Ended
	Sep. 30, 2014
Derivative Financial Instruments [Abstract]	'
Derivative Financial Instruments	'
	Note 17 – Derivative Financial Instruments
	Derivatives Designated as Hedging Instruments
	As part of Trustmark’s risk management strategy in the mortgage banking area, derivative instruments such as forward sales contracts are utilized.  Trustmark’s obligations under forward sales contracts consist of commitments to deliver mortgage loans, originated and/or purchased, in the secondary market at a future date.  These derivative instruments are designated as fair value hedges under FASB ASC Topic 815, “Derivatives and Hedging.”  The ineffective portion of changes in the fair value of the forward sales contracts and changes in the fair value of the loans designated as loans held for sale are recorded in noninterest income in mortgage banking, net.  Trustmark’s off-balance sheet obligations under these derivative instruments totaled $175.7 million at September 30, 2014, with a negative valuation adjustment of $623 thousand, compared to $155.8 million, with a positive valuation adjustment of $1.9 million as of December 31, 2013.
	On April 4, 2013, Trustmark entered into a forward interest rate swap contract on junior subordinated debentures with a total notional amount of $60.0 million.  The interest rate swap contract was designated as a derivative instrument in a cash flow hedge under FASB ASC Topic 815, with the objective of protecting the quarterly interest payments on Trustmark’s $60.0 million of junior subordinated debentures issued to Trustmark Preferred Capital Trust I throughout the five-year period beginning December 31, 2014 and ending December 31, 2019 from the risk of variability of those payments resulting from changes in the three-month LIBOR interest rate.  Under the swap, commencing on December 31, 2014, Trustmark will pay a fixed interest rate of 1.66% and receive a variable interest rate based on three-month LIBOR on a total notional amount of $60.0 million, with quarterly net settlements.
	No ineffectiveness related to the interest rate swap designated as a cash flow hedge was recognized in the consolidated statements of income during the nine months ended September 30, 2014.  The accumulated net after-tax gain related to effective cash flow hedges included in accumulated other comprehensive loss totaled $717 thousand at September 30, 2014 compared to $1.5 million at December 31, 2013.  Amounts reported in accumulated other comprehensive loss related to derivatives will be reclassified to interest expense as interest payments are made on the Trustmark’s variable rate junior subordinated debentures.  During the next twelve months, Trustmark estimates that $575 thousand will be reclassified as an increase to interest expense.
	Derivatives not Designated as Hedging Instruments
	Trustmark utilizes a portfolio of exchange-traded derivative instruments, such as Treasury note futures contracts and option contracts, to achieve a fair value return that economically hedges changes in the fair value of MSR attributable to interest rates.  These transactions are considered freestanding derivatives that do not otherwise qualify for hedge accounting.  Changes in the fair value of these exchange-traded derivative instruments are recorded in noninterest income in mortgage banking, net and are offset by changes in the fair value of MSR.  The impact of this strategy resulted in a net positive ineffectiveness of $583 thousand and $1.3 million for the three months ended September 30, 2014 and 2013, respectively.  For the nine months ended September 30, 2014 and 2013, the impact was a net positive ineffectiveness of $3.0 million and $2.7 million, respectively.
	Trustmark also utilizes derivative instruments such as interest rate lock commitments in its mortgage banking area.  Interest rate lock commitments are residential mortgage loan commitments with customers, which guarantee a specified interest rate for a specified time period.  Changes in the fair value of these derivative instruments are recorded in noninterest income in mortgage banking, net and are offset by the changes in the fair value of forward sales contracts.  Trustmark’s off-balance sheet obligations under these derivative instruments totaled $107.0 million at September 30, 2014, with a positive valuation adjustment of $1.3 million, compared to $58.5 million, with a positive valuation adjustment of $126 thousand as of December 31, 2013.
	Trustmark offers certain derivatives products directly to qualified commercial lending clients seeking to manage their interest rate risk.  Trustmark economically hedges interest rate swap transactions executed with commercial lending clients by entering into offsetting interest rate swap transactions with institutional derivatives market participants.  Derivative transactions executed as part of this program are not designated as qualifying hedging relationships and are, therefore, carried at fair value with the change in fair value recorded in noninterest income in bank card and other fees.  Because these derivatives have mirror-image contractual terms, in addition to collateral provisions which mitigate the impact of non-performance risk, the changes in fair value are expected to substantially offset.  As of September 30, 2014, Trustmark had interest rate swaps with an aggregate notional amount of $337.9 million related to this program, compared to $355.9 million as of December 31, 2013.
	Credit-risk-related Contingent Features
	Trustmark has agreements with its financial institution counterparties that contain provisions where if Trustmark defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then Trustmark could also be declared in default on its derivative obligations.
	As of September 30, 2014, the termination value of interest rate swaps in a liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was $631 thousand compared to $508 thousand as of December 31, 2013.  As of September 30, 2014, Trustmark had posted collateral with a market value of $1.0 million against its obligations because of negotiated thresholds and minimum transfer amounts under these agreements.  If Trustmark had breached any of these triggering provisions at September 30, 2014, it could have been required to settle its obligations under the agreements at the termination value.
	Credit risk participation agreements arise when Trustmark contracts with other financial institutions, as a guarantor or beneficiary, to share credit risk associated with certain interest rate swaps.  These agreements provide for reimbursement of losses resulting from a third party default on the underlying swap.  As of September 30, 2014 and December 31, 2013, Trustmark had entered into three risk participation agreements as a beneficiary with an aggregate notional amount of $19.3 million and $19.7 million, respectively.  As of September 30, 2014, Trustmark had entered into one risk participation agreement as a guarantor with an aggregate notional amount of $6.3 million, compared to none at December 31, 2013.  The fair values of these risk participation agreements were immaterial at September 30, 2014 and December 31, 2013.
	Tabular Disclosures
	The following tables disclose the fair value of derivative instruments in Trustmark’s balance sheets as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Derivatives in hedging relationships
	Interest rate contracts:
	Interest rate swaps included in other assets	$	1,161		$	2,469
	Forward contracts included in other liabilities		623			(1,911	)
	Derivatives not designated as hedging instruments
	Interest rate contracts:
	Futures contracts included in other assets	$	(816	)	$	(2,662	)
	Exchange traded purchased options included in other assets		316			83
	OTC written options (rate locks) included in other assets		1,340			126
	Interest rate swaps included in other assets		3,017			4,962
	Credit risk participation agreements included in other assets		16			16
	Exchange traded written options included in other liabilities		181			581
	Interest rate swaps included in other liabilities		2,926			4,628
	Credit risk participation agreements included in other liabilities		16			16
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Derivatives in hedging relationships
	Amount of (loss) gain recognized in mortgage banking, net	$	(1,765	)	$	(13,008	)	$	2,534		$	(2,141	)
	Derivatives not designated as hedging instruments
	Amount of (loss) gain recognized in mortgage banking, net	$	(986	)	$	2,728		$	7,267		$	(5,421	)
	Amount of gain (loss) recognized in bankcard and other fees		3			(203	)		(239	)		192
	The following table discloses the amount included in other comprehensive income (loss) for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Derivatives in cash flow hedging relationship
	Amount of gain (loss) recognized in other comprehensive income (loss)	$	163		$	(242	)	$	(807	)	$	1,212
	Certain financial instruments, including resell and repurchase agreements, securities lending arrangements and derivatives, may be eligible for offset in the consolidated balance sheet and/or subject to master netting arrangements or similar agreements. Trustmark’s interest rate swap derivative instruments are subject to master netting agreements, and therefore, eligible for offsetting in the consolidated balance sheet. Trustmark has elected to not offset any derivative instruments in its consolidated balance sheets. Information about financial instruments that are eligible for offset in the consolidated balance sheets as of September 30, 2014 and December 31, 2013 is presented in the following tables ($ in thousands):
	Offsetting of Derivative Assets
	As of September 30, 2014
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Assets			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Assets presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Received			Net Amount
	Derivatives	$	4,178		$	-		$	4,178		$	(1,038	)	$	(650	)	$	2,490
	Offsetting of Derivative Liabilities
	As of September 30, 2014
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Liabilities			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Liabilities presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Posted			Net Amount
	Derivatives	$	2,926		$	-		$	2,926		$	(1,038	)	$	-		$	1,888
	Offsetting of Derivative Assets
	As of December 31, 2013
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Assets			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Assets presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Received			Net Amount
	Derivatives	$	7,431		$	-		$	7,431		$	(967	)	$	(1,920	)	$	4,544
	Offsetting of Derivative Liabilities
	As of December 31, 2013
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Liabilities			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Liabilities presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Posted			Net Amount
	Derivatives	$	4,628		$	-		$	4,628		$	(967	)	$	-		$	3,661

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Information [Abstract]	'
Segment Information	'
	Note 18 – Segment Information
	Trustmark’s management reporting structure includes three segments: General Banking, Wealth Management and Insurance.  General Banking is primarily responsible for all traditional banking products and services, including loans and deposits.  General Banking also consists of internal operations such as Human Resources, Executive Administration, Treasury, Funds Management, Public Affairs and Corporate Finance.  Wealth Management provides customized solutions for affluent customers by integrating financial services with traditional banking products and services such as money management, full-service brokerage, financial planning, personal and institutional trust and retirement services.  Through Fisher Brown Bottrell Insurance, Inc. (FBBI), a wholly owned subsidiary of TNB, Trustmark’s Insurance Division provides a full range of retail insurance products including commercial risk management products, bonding, group benefits and personal lines coverage.  During the second quarter of 2014, Trustmark revised the composition of its operating segments by moving the Private Banking group from the Wealth Management Division to the General Banking Division, which provided a more accurate reflection of the manner in which Trustmark manages these operating segments.  Prior period amounts presented below include reclassifications to conform to the current period presentation.
	The accounting policies of each reportable segment are the same as those of Trustmark except for its internal allocations. Noninterest expenses for back-office operations support are allocated to segments based on estimated uses of those services. Trustmark measures the net interest income of its business segments with a process that assigns cost of funds or earnings credit on a matched-term basis.  This process, called "funds transfer pricing", charges an appropriate cost of funds to assets held by a business unit, or credits the business unit for potential earnings for carrying liabilities.  The net of these charges and credits flows through to the General Banking segment, which contains the management team responsible for determining the bank's funding and interest rate risk strategies.
	The following table discloses financial information by reportable segment for the periods presented ($ in thousands):
		Three Months Ended September 30,					Nine Months Ended September 30,
		2014		2013			2014		2013
	General Banking
	Net interest income	$	105,672	$	98,135		$	305,422	$	285,915
	Provision for loan losses, net		4,203		(332	)		7,596		(9,568	)
	Noninterest income		25,663		31,443			81,685		90,352
	Noninterest expense		86,935		89,198			265,067		274,545
	Income before income taxes		40,197		40,712			114,444		111,290
	Income taxes		9,535		10,040			26,012		28,216
	General banking net income	$	30,662	$	30,672		$	88,432	$	83,074
	Selected Financial Information
	Average assets	$	12,013,572	$	11,688,102		$	11,928,029	$	11,383,231
	Depreciation and amortization	$	8,896	$	9,186		$	26,289	$	26,905
	Wealth Management
	Net interest income	$	467	$	192		$	749	$	480
	Noninterest income		7,989		7,459			23,784		21,338
	Noninterest expense		6,303		6,294			19,357		18,230
	Income before income taxes		2,153		1,357			5,176		3,588
	Income taxes		712		446			1,714		1,178
	Wealth management net income	$	1,441	$	911		$	3,462	$	2,410
	Selected Financial Information
	Average assets	$	263	$	461		$	1,478	$	256
	Depreciation and amortization	$	48	$	39		$	143	$	118
	Insurance
	Net interest income	$	90	$	102		$	250	$	237
	Noninterest income		9,241		8,231			25,642		23,496
	Noninterest expense		6,956		6,032			20,149		18,089
	Income before income taxes		2,375		2,301			5,743		5,644
	Income taxes		889		850			2,148		2,107
	Insurance net income	$	1,486	$	1,451		$	3,595	$	3,537
	Selected Financial Information
	Average assets	$	77,378	$	70,545		$	64,808	$	67,268
	Depreciation and amortization	$	188	$	258		$	656	$	777
	Consolidated
	Net interest income	$	106,229	$	98,429		$	306,421	$	286,632
	Provision for loan losses, net		4,203		(332	)		7,596		(9,568	)
	Noninterest income		42,893		47,133			131,111		135,186
	Noninterest expense		100,194		101,524			304,573		310,864
	Income before income taxes		44,725		44,370			125,363		120,522
	Income taxes		11,136		11,336			29,874		31,501
	Consolidated net income	$	33,589	$	33,034		$	95,489	$	89,021
	Selected Financial Information
	Average assets	$	12,091,213	$	11,759,108		$	11,994,315	$	11,450,755
	Depreciation and amortization	$	9,132	$	9,483		$	27,088	$	27,800

Accounting_Policies_Recently_A

Accounting Policies Recently Adopted and Pending Accounting Pronouncements	9 Months Ended
	Sep. 30, 2014
Accounting Policies Recently Adopted and Pending Accounting Pronouncements [Abstract]	'
Accounting Policies Recently Adopted and Pending Accounting Pronouncements	'
	Note 19 – Accounting Policies Recently Adopted and Pending Accounting Pronouncements
	ASU 2014-14, “Receivables – Troubled Debt Restructurings by Creditors (Subtopic 310-40): Classification of Certain Government-Guaranteed Residential Mortgage Loans upon Foreclosure (a consensus of the FASB Emerging Issues Task Force).” Issued in August 2014, ASU 2014-14 requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if (1) the loan has a government guarantee that is not separable from the loan before foreclosure; (2) at the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under the claim; and (3) at the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed.  ASU 2014-14 also provides that upon foreclosure, the separate other receivable would be measured based on the current amount of the loan balance (principal and interest) expected to be recovered under the guarantee.  The amendments of ASU 2014-14 are effective for interim and annual periods beginning after December 15, 2014, and may be applied using either a modified retrospective transition method or a prospective transition method as described in ASU 2014-14.  The adoption of ASU 2014-14 is not expected to have a significant impact to Trustmark’s consolidated financial statements.
	ASU 2014-11, “Transfers and Servicing (Topic 860) – Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures.” Issued in June 2014, ASU 2014-11 changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting, and for repurchase financing arrangements requires separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement.  ASU 2014-11 also require disclosures for certain transactions comprising a transfer of a financial asset accounted for as a sale and an agreement with the same transferee entered into in contemplation of the initial transfer that results in the transferor retaining substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction.  ASU 2014-11 requires interim and annual disclosures for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions that are accounted for as secured borrowings, which include a disaggregation of the gross obligation by class of collateral pledged; the remaining contractual tenor of the agreements; and a discussion of the potential risks associated with the agreements and the related collateral pledged, including obligations arising from a decline in the fair value of the collateral pledged and how those risks are managed.  The accounting changes and disclosure requirements for certain transactions accounted for as a sale in ASU 2014-11 are effective for interim and annual periods beginning after December 15, 2014.  The disclosures for transactions accounted for as secured borrowings are required to be presented for annual periods beginning after December 15, 2014, and for interim periods beginning after March 15, 2015.  Trustmark currently accounts for its repurchase agreements as secured borrowings; therefore, the adoption of ASU 2014-11 will be a change in presentation only for the newly required disclosures and will not have a significant impact to Trustmark’s consolidated financial statements.
	ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” Issued in May 2014, ASU 2014-09 will add FASB ASC Topic 606, “Revenue from Contracts with Customers,” and will supersede revenue recognition requirements in FASB ASC Topic 605, “Revenue Recognition,” as well as certain cost guidance in FASB ASC Topic 605-35, “Revenue Recognition – Construction-Type and Production-Type Contracts.”  ASU 2014-09 provides a framework for revenue recognition that replaces the existing industry and transaction specific requirements under the existing standards.  ASU 2014-09 requires an entity to apply a five-step model to determine when to recognize revenue and at what amount.  The model specifies that revenue should be recognized when (or as) an entity transfers control of goods or services to a customer at the amount in which the entity expects to be entitled.  Depending on whether certain criteria are met, revenue should be recognized either over time, in manner that depicts the entity’s performance, or at a point in time, when control of the goods or services are transferred to the customer.  ASU 2014-09 provides that an entity should apply the following steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when, or as, the entity satisfies a performance obligation.  In addition, the existing requirements for the recognition of a gain or loss on the transfer of non-financial assets that are not in a contract with a customer are amended to be consistent with the guidance on recognition and measurement in ASU 2014-09.  The amendments of ASU 2014-09 are effective for interim and annual periods beginning after December 15, 2016, and may be applied either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application.  If the transition method of application is elected, the entity should also provide the additional disclosures in reporting periods that include the date of initial application of (1) the amount by which each financial statement line item is affected in the current reporting period, as compared to the guidance that was in effect before the change, and (2) an explanation of the reasons for significant changes.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements as well as the most appropriate method of application; however, regardless of the method of application selected, the adoption of ASU 2014-01 is not expected to have a significant impact to Trustmark’s consolidated financial statements.
	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).” Issued in January 2014, ASU 2014-04 clarifies when an “in substance repossession or foreclosure” occurs, that is, when a creditor should be considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loans, such that all or a portion of the loan should be derecognized and the real estate property recognized.  ASU 2014-04 states that a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure, or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement.  The amendments of ASU 2014-04 also require interim and annual disclosure of both the amount of foreclosed residential real estate property held by the creditor and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure.  The amendments of ASU 2014-04 are effective for interim and annual periods beginning after December 15, 2014, and may be applied using either a modified retrospective transition method or a prospective transition method as described in ASU 2014-04.  For Trustmark, the adoption of ASU 2014-04 will be change in presentation only for the newly required disclosures and is not expected to have a significant impact to Trustmark’s consolidated financial statements.
	ASU 2014-01, “Investments – Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Qualified Affordable Housing Projects (a consensus of the FASB Emerging Issues Task Force).”  Issued in January 2014, ASU 2014-01 permits reporting entities that invest in qualified affordable housing projects to elect to account for those investments using the “proportional amortization method” if certain conditions are met.  Under this 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).  The decision to apply the proportional amortization method of accounting is an accounting policy decision and should be applied consistently to all qualifying affordable housing project investments.  ASU 2014-01 should be applied retrospectively to all periods presented and is effective for annual and interim reporting periods beginning after December 15, 2014.  Trustmark currently accounts for its tax credit investments utilizing the equity method of accounting and does not have a significant amount of investments in qualified affordable housing projects that qualify for the low income housing tax credit.  Management will review Trustmark’s investments in qualified affordable housing projects to determine if these investments meet the conditions required for using the proportional amortization method of accounting and make a decision regarding the accounting policy.  The adoption of ASU 2014-01 is not expected to have a significant impact to Trustmark’s consolidated financial statements.
	ASU 2013-11, “Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (a consensus of the FASB Emerging Issues Task Force).”  Issued in July 2013, ASU 2013-11 provides that an entity’s unrecognized tax benefit, or a portion of its unrecognized tax benefit, should be presented in its financial statements as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, with one exception.  The exception states that to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position, or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets.  ASU 2013-11 applies prospectively for all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or tax credit carryforward exists at the reporting date.  ASU 2013-11 became effective for Trustmark’s financial statements on January 1, 2014, and the adoption did not have a significant impact to Trustmark’s consolidated financial statements.
	ASU 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.”  Issued in February 2013, ASU 2013-02 requires an entity to report the effect of significant reclassifications out of accumulated other comprehensive income on net income line items only for those items that are reported in their entirety in net income in the period of reclassification.  For these items, entities are required to disclose the effect of the reclassification on each line item of net income that is affected by the reclassification adjustment.  For items that are not reclassified in their entirety into net income, an entity is required to add a cross-reference to the note that includes additional information about the effect of the reclassification.  For entities that only have reclassifications into net income in their entirety, this information may be presented either in the notes or parenthetically on the face of the statement that reports net income as long as the required information is reported in a single location.  Entities that have one or more reclassification items that are not presented in their entirety in net income in the period of reclassification must present this information in the notes to the financial statements.  ASU 2013-02 became effective for Trustmark’s financial statements on January 1, 2013, and the adoption did not have a significant impact to Trustmark’s consolidated financial statements.  The required disclosures are reported in Note 15 – Shareholders’ Equity.
	ASU 2013-01. “Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.”  Issued in January 2013, ASU 2013-01 clarifies that the scope of ASU 2011-11, “Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities,” applies to derivatives accounted for in accordance with FASB ASC Topic 815, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions that are either offset in accordance with Section 210-20-45 or Section 815-10-45 or subject to an enforceable master netting arrangement or similar agreements.  ASU 2013-01 became effective for Trustmark’s financial statements on January 1, 2013, and the adoption did not have a significant impact to Trustmark’s consolidated financial statements.  The required disclosures are reported in Note 17 – Derivatives.

Business_Combinations_Tables

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Statement of assets purchased and liabilities assumed	'
	The statement of assets purchased and liabilities assumed in the BancTrust acquisition is presented below at their adjusted estimated fair values as of the acquisition date of February 15, 2013 ($ in thousands):
	Assets:
	Cash and due from banks	$	141,616
	Securities available for sale		528,016
	Loans held for sale		1,050
	Acquired noncovered loans		944,235
	Premises and equipment, net		54,952
	Identifiable intangible assets		33,498
	Other real estate		40,103
	Other assets		109,423
	Total Assets		1,852,893
	Liabilities:
	Deposits		1,740,254
	Other borrowings		64,051
	Other liabilities		16,761
	Total Liabilities		1,821,066
	Net identified assets acquired at fair value		31,827
	Goodwill		74,247
	Net assets acquired at fair value	$	106,074

Securities_Available_for_Sale_1

Securities Available for Sale and Held to Maturity (Tables)	9 Months Ended
	Sep. 30, 2014
Securities Available for Sale and Held to Maturity [Abstract]	'
Amortized cost and estimated fair value of available for sale and held to maturity securities	'
	The following table is a summary of the amortized cost and estimated fair value of securities available for sale and held to maturity ($ in thousands):
		Securities Available for Sale												Securities Held to Maturity
	30-Sep-14	Amortized			Gross			Gross			Estimated			Amortized		Gross			Gross			Estimated
		Cost			Unrealized			Unrealized			Fair			Cost		Unrealized			Unrealized			Fair
					Gains			(Losses)			Value					Gains			(Losses)			Value
	U.S. Treasury securities	$	100		$	-		$	-		$	100		$	-	$	-		$	-		$	-
	U.S. Government agency obligations
	Issued by U.S. Government agencies		83,354			729			(1,072	)		83,011			-		-			-			-
	Issued by U.S. Government sponsored agencies		30,719			100			(40	)		30,779			100,767		1,858			(55	)		102,570
	Obligations of states and political subdivisions		159,304			6,200			(41	)		165,463			64,538		3,487			-			68,025
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		12,319			524			(15	)		12,828			13,368		304			(15	)		13,657
	Issued by FNMA and FHLMC		209,455			4,086			(121	)		213,420			11,816		245			-			12,061
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		1,606,565			13,065			(16,492	)		1,603,138			836,966		1,723			(6,106	)		832,583
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		215,284			6,414			(57	)		221,641			142,185		956			(1,824	)		141,317
	Asset-backed securities and structured financial products		32,531			984			-			33,515			-		-			-			-
	Total	$	2,349,631		$	32,102		$	(17,838	)	$	2,363,895		$	1,169,640	$	8,573		$	(8,000	)	$	1,170,213
	31-Dec-13
	U.S. Treasury securities	$	501		$	1		$	-		$	502		$	-	$	-		$	-		$	-
	U.S. Government agency obligations
	Issued by U.S. Government agencies		129,653			1,125			(1,485	)		129,293			-		-			-			-
	Issued by U.S. Government sponsored agencies		40,681			19			(521	)		40,179			100,159		-			(1,580	)		98,579
	Obligations of states and political subdivisions		165,810			6,243			(315	)		171,738			65,987		2,806			(281	)		68,512
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		14,099			459			(84	)		14,474			9,433		142			(72	)		9,503
	Issued by FNMA and FHLMC		239,880			3,147			(1,909	)		241,118			12,724		30			(162	)		12,592
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		1,300,375			12,459			(22,093	)		1,290,741			837,393		-			(15,072	)		822,321
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		235,317			7,278			(423	)		242,172			143,032		85			(3,791	)		139,326
	Asset-backed securities and structured financial products		62,689			1,248			-			63,937			-		-			-			-
	Total	$	2,189,005		$	31,979		$	(26,830	)	$	2,194,154		$	1,168,728	$	3,063		$	(20,958	)	$	1,150,833
Securities with gross unrealized losses, segregated by length of impairment	'
	The table below includes securities with gross unrealized losses segregated by length of impairment ($ in thousands):
		Less than 12 Months						12 Months or More						Total
	30-Sep-14	Estimated			Gross			Estimated			Gross			Estimated		Gross
		Fair Value			Unrealized			Fair Value			Unrealized			Fair Value		Unrealized
					Losses						Losses					Losses
	U.S. Government agency obligations
	Issued by U.S. Government agencies	$	22,911		$	(147	)	$	31,307		$	(925	)	$	54,218	$	(1,072	)
	Issued by U.S. Government sponsored agencies		14,333			(55	)		9,940			(40	)		24,273		(95	)
	Obligations of states and political subdivisions		2,286			(7	)		4,710			(34	)		6,996		(41	)
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		6,007			(25	)		675			(5	)		6,682		(30	)
	Issued by FNMA and FHLMC		36,918			(121	)		-			-			36,918		(121	)
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		820,242			(8,173	)		420,054			(14,425	)		1,240,296		(22,598	)
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		27,874			(445	)		70,930			(1,436	)		98,804		(1,881	)
	Total	$	930,571		$	(8,973	)	$	537,616		$	(16,865	)	$	1,468,187	$	(25,838	)
	31-Dec-13
	U.S. Government agency obligations
	Issued by U.S. Government agencies	$	68,908		$	(1,485	)	$	-		$	-		$	68,908	$	(1,485	)
	Issued by U.S. Government sponsored agencies		138,478			(2,101	)		-			-			138,478		(2,101	)
	Obligations of states and political subdivisions		55,963			(586	)		796			(10	)		56,759		(596	)
	Mortgage-backed securities
	Residential mortgage pass-through securities
	Guaranteed by GNMA		14,732			(155	)		161			(1	)		14,893		(156	)
	Issued by FNMA and FHLMC		118,466			(2,071	)		-			-			118,466		(2,071	)
	Other residential mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		1,534,381			(36,750	)		23,458			(415	)		1,557,839		(37,165	)
	Commercial mortgage-backed securities
	Issued or guaranteed by FNMA, FHLMC or GNMA		177,412			(4,214	)		-			-			177,412		(4,214	)
	Total	$	2,108,340		$	(47,362	)	$	24,415		$	(426	)	$	2,132,755	$	(47,788	)
Gains and losses as a result of calls and disposition of securities	'
	Gains and losses as a result of calls and dispositions of securities, as well as any associated proceeds, were as follows ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
	Available for Sale	2014			2013			2014			2013
	Proceeds from calls and sales of securities	$	30,540		$	-		$	56,815		$	64,778
	Gross realized gains		67			-			456			394
	Gross realized losses		(156	)		-			(156	)		(16	)
Contractual maturities of available for sale and held to maturity securities	'
	The amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2014, by contractual maturity, are shown below ($ in thousands).  Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
		Securities						Securities
		Available for Sale						Held to Maturity
		Amortized			Estimated			Amortized			Estimated
		Cost			Fair			Cost			Fair
					Value						Value
	Due in one year or less	$	15,979		$	16,132		$	3,194		$	3,220
	Due after one year through five years		119,935			124,331			11,661			12,394
	Due after five years through ten years		83,488			86,120			134,637			138,486
	Due after ten years		86,606			86,285			15,813			16,495
			306,008			312,868			165,305			170,595
	Mortgage-backed securities		2,043,623			2,051,027			1,004,335			999,618
	Total	$	2,349,631		$	2,363,895		$	1,169,640		$	1,170,213

Loans_Held_for_Investment_LHFI1

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (Tables)	9 Months Ended
	Sep. 30, 2014
Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI [Abstract]	'
Loan portfolio held for investment	'
	For the periods presented, LHFI consisted of the following ($ in thousands):
		30-Sep-14			31-Dec-13
	Loans secured by real estate:
	Construction, land development and other land	$	580,794		$	596,889
	Secured by 1-4 family residential properties		1,625,480			1,485,564
	Secured by nonfarm, nonresidential properties		1,560,901			1,415,139
	Other		239,819			189,362
	Commercial and industrial loans		1,246,753			1,157,614
	Consumer loans		168,813			165,308
	Other loans		911,091			789,005
	LHFI		6,333,651			5,798,881
	Less allowance for loan losses, LHFI		70,134			66,448
	Net LHFI	$	6,263,517		$	5,732,433
Summary of LHFI evaluated for impairment	'
	The following table details LHFI individually and collectively evaluated for impairment at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
		LHFI Evaluated for Impairment
		Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land	$	20,286		$	560,508			$	580,794
	Secured by 1-4 family residential properties		27,017			1,598,463				1,625,480
	Secured by nonfarm, nonresidential properties		23,885			1,537,016				1,560,901
	Other		1,203			238,616				239,819
	Commercial and industrial loans		15,178			1,231,575				1,246,753
	Consumer loans		160			168,653				168,813
	Other loans		585			910,506				911,091
	Total	$	88,314		$	6,245,337			$	6,333,651
		31-Dec-13
		LHFI Evaluated for Impairment
		Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land	$	13,327		$	583,562			$	596,889
	Secured by 1-4 family residential properties		21,603			1,463,961				1,485,564
	Secured by nonfarm, nonresidential properties		21,809			1,393,330				1,415,139
	Other		1,327			188,035				189,362
	Commercial and industrial loans		6,286			1,151,328				1,157,614
	Consumer loans		151			165,157				165,308
	Other loans		735			788,270				789,005
	Total	$	65,238		$	5,733,643			$	5,798,881
Impaired financing receivables	'
	At September 30, 2014 and December 31, 2013, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):
		30-Sep-14
		LHFI
		Unpaid			With No Related				With an			Total				Related		Average
		Principal			Allowance				Allowance			Carrying				Allowance		Recorded
		Balance			Recorded				Recorded			Amount						Investment
	Loans secured by real estate:
	Construction, land development and other land	$	27,271		$	9,491			$	10,795		$	20,286			$	2,607	$	16,806
	Secured by 1-4 family residential properties		32,478			1,758				25,259			27,017				431		24,310
	Secured by nonfarm, nonresidential properties		26,702			14,420				9,465			23,885				2,163		22,847
	Other		1,468			-				1,203			1,203				57		1,265
	Commercial and industrial loans		16,624			1,916				13,262			15,178				5,203		10,732
	Consumer loans		239			-				160			160				1		156
	Other loans		698			-				585			585				263		661
	Total	$	105,480		$	27,585			$	60,729		$	88,314			$	10,725	$	76,777
		31-Dec-13
		LHFI
		Unpaid			With No Related				With an			Total				Related		Average
		Principal			Allowance				Allowance			Carrying				Allowance		Recorded
		Balance			Recorded				Recorded			Amount						Investment
	Loans secured by real estate:
	Construction, land development and other land	$	24,350		$	9,817			$	3,510		$	13,327			$	989	$	20,216
	Secured by 1-4 family residential properties		26,541			3,095				18,508			21,603				191		24,359
	Secured by nonfarm, nonresidential properties		24,879			10,225				11,584			21,809				2,307		20,049
	Other		1,375			-				1,327			1,327				122		2,641
	Commercial and industrial loans		8,702			2,506				3,780			6,286				1,253		5,513
	Consumer loans		286			-				151			151				2		255
	Other loans		849			-				735			735				317		767
	Total	$	86,982		$	25,643			$	39,595		$	65,238			$	5,181	$	73,800
Impact of modifications classified as troubled debt restructurings	'
	The following table illustrates the impact of modifications classified as TDRs for the three and nine months ended September 30, 2014 and 2013 as well as those TDRs modified within the last 12 months for which there was a payment default during the period ($ in thousands):
		Three Months Ended September 30,
		2014										2013
	Troubled Debt Restructurings	Number of Contracts			Pre-Modification				Post-Modification			Number of Contracts				Pre-Modification		Post-Modification
					Outstanding				Outstanding							Outstanding		Outstanding
					Recorded				Recorded							Recorded		Recorded
					Investment				Investment							Investment		Investment
	Secured by 1-4 family residential properties		2		$	191			$	191			1			$	32	$	32
		Nine Months Ended September 30,
		2014										2013
	Troubled Debt Restructurings	Number of Contracts			Pre-Modification				Post-Modification			Number of Contracts				Pre-Modification		Post-Modification
					Outstanding				Outstanding							Outstanding		Outstanding
					Recorded				Recorded							Recorded		Recorded
					Investment				Investment							Investment		Investment
	Secured by 1-4 family residential properties		16		$	1,172			$	1,158			6			$	412	$	358
	Secured by nonfarm, nonresidential properties		-			-				-			1				952		952
	Commercial and industrial		-			-				-			2				944		937
	Other loans		-			-				-			1				2,490		2,490
	Total		16		$	1,172			$	1,158			10			$	4,798	$	4,737
Troubled debt restructuring subsequently defaulted	'
		Nine Months Ended September 30,
		2014							2013
	Troubled Debt Restructurings that Subsequently Defaulted	Number of Contracts			Recorded Investment				Number of Contracts			Recorded Investment
	Construction, land development and other land loans		-		$	-				1		$	9
	Secured by 1-4 family residential properties		1			106				4			389
	Total		1		$	106				5		$	398
Troubled debt restructuring related to loans held for investment, excluding covered loans, by loan type	'
	The following tables detail LHFI classified as TDRs by loan type for the periods presented ($ in thousands):
		30-Sep-14
		Accruing			Nonaccrual				Total
	Construction, land development and other land loans	$	-		$	4,076			$	4,076
	Secured by 1-4 family residential properties		1,373			3,940				5,313
	Secured by nonfarm, nonresidential properties		-			1,923				1,923
	Other loans secured by real estate		-			156				156
	Commercial and industrial		-			524				524
	Total Troubled Debt Restructurings by Type	$	1,373		$	10,619			$	11,992
		31-Dec-13
		Accruing			Nonaccrual				Total
	Construction, land development and other land loans	$	-		$	6,247			$	6,247
	Secured by 1-4 family residential properties		1,320			4,201				5,521
	Secured by nonfarm, nonresidential properties		-			2,292				2,292
	Other loans secured by real estate		-			167				167
	Commercial and industrial		-			549				549
	Total Troubled Debt Restructurings by Type	$	1,320		$	13,456			$	14,776
		30-Sep-13
		Accruing			Nonaccrual				Total
	Construction, land development and other land loans	$	227		$	7,304			$	7,531
	Secured by 1-4 family residential properties		1,255			4,965				6,220
	Secured by nonfarm, nonresidential properties		-			2,349				2,349
	Other loans secured by real estate		-			174				174
	Commercial and industrial		-			568				568
	Total Troubled Debt Restructurings by Type	$	1,482		$	15,360			$	16,842
Carrying amount of loans by credit quality indicator	'
	The table below illustrates the carrying amount of LHFI by credit quality indicator at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
					Commercial LHFI
					Pass -				Special Mention -			Substandard -				Doubtful -		Subtotal
					Categories 1-6				Category 7			Category 8				Category 9
	Loans secured by real estate:
	Construction, land development and other land				$	482,131			$	1,774		$	37,353			$	143	$	521,401
	Secured by 1-4 family residential properties					129,352				1,692			7,576				263		138,883
	Secured by nonfarm, nonresidential properties					1,442,787				31,921			85,081				212		1,560,001
	Other					230,604				-			6,700				-		237,304
	Commercial and industrial loans					1,210,480				6,007			29,418				847		1,246,752
	Consumer loans					198				-			-				-		198
	Other loans					890,052				7,670			6,545				586		904,853
					$	4,385,604			$	49,064		$	172,673			$	2,051	$	4,609,392
		Consumer LHFI
		Current			Past Due				Past Due			Nonaccrual				Subtotal		Total LHFI
					30-89 Days				90 Days or More
	Loans secured by real estate:
	Construction, land development and other land	$	58,866		$	424			$	-		$	103			$	59,393	$	580,794
	Secured by 1-4 family residential properties		1,451,174			9,411				2,845			23,167				1,486,597		1,625,480
	Secured by nonfarm, nonresidential properties		900			-				-			-				900		1,560,901
	Other		2,515			-				-			-				2,515		239,819
	Commercial and industrial loans		-			-				1			-				1		1,246,753
	Consumer loans		166,314			1,870				272			159				168,615		168,813
	Other loans		6,238			-				-			-				6,238		911,091
		$	1,686,007		$	11,705			$	3,118		$	23,429			$	1,724,259	$	6,333,651
		31-Dec-13
					Commercial LHFI
					Pass -				Special Mention -			Substandard -				Doubtful -		Subtotal
					Categories 1-6				Category 7			Category 8				Category 9
	Loans secured by real estate:
	Construction, land development and other land				$	493,380			$	4,383		$	47,610			$	318	$	545,691
	Secured by 1-4 family residential properties					119,640				479			7,839				110		128,068
	Secured by nonfarm, nonresidential properties					1,313,470				12,620			87,203				399		1,413,692
	Other					178,951				-			6,756				235		185,942
	Commercial and industrial loans					1,099,429				18,771			37,209				2,187		1,157,596
	Consumer loans					496				-			-				-		496
	Other loans					777,395				60			4,126				669		782,250
					$	3,982,761			$	36,313		$	190,743			$	3,918	$	4,213,735
		Consumer LHFI
		Current			Past Due				Past Due			Nonaccrual				Subtotal		Total LHFI
					30-89 Days				90 Days or More
	Loans secured by real estate:
	Construction, land development and other land	$	50,850		$	131			$	-		$	217			$	51,198	$	596,889
	Secured by 1-4 family residential properties		1,327,624			8,937				2,996			17,939				1,357,496		1,485,564
	Secured by nonfarm, nonresidential properties		1,439			8				-			-				1,447		1,415,139
	Other		3,418			2				-			-				3,420		189,362
	Commercial and industrial loans		13			5				-			-				18		1,157,614
	Consumer loans		162,348			2,012				302			150				164,812		165,308
	Other loans		6,755			-				-			-				6,755		789,005
		$	1,552,447		$	11,095			$	3,298		$	18,306			$	1,585,146	$	5,798,881
Aging analysis of past due loans and Nonaccrual Loans, excluding covered loans by class	'
	The following tables provide an aging analysis of past due and nonaccrual LHFI by class at September 30, 2014 and December 31, 2013 ($ in thousands):
		30-Sep-14
		Past Due
		30-59 Days			60-89 Days				90 Days			Total				Nonaccrual		Current		Total LHFI
									or More (1)									Loans
	Loans secured by real estate:
	Construction, land development and other land	$	466		$	360			$	268		$	1,094			$	20,286	$	559,414	$	580,794
	Secured by 1-4 family residential properties		6,685			2,893				2,845			12,423				27,017		1,586,040		1,625,480
	Secured by nonfarm, nonresidential properties		9,787			3,614				-			13,401				23,885		1,523,615		1,560,901
	Other		202			65				-			267				1,203		238,349		239,819
	Commercial and industrial loans		1,806			97				454			2,357				15,178		1,229,218		1,246,753
	Consumer loans		1,627			243				272			2,142				160		166,511		168,813
	Other loans		82			27				-			109				585		910,397		911,091
	Total	$	20,655		$	7,299			$	3,839		$	31,793			$	88,314	$	6,213,544	$	6,333,651
	(1) Past due 90 days or more but still accruing interest.
		31-Dec-13
		Past Due
		30-59 Days			60-89 Days				90 Days			Total				Nonaccrual		Current		Total LHFI
									or More (1)									Loans
	Loans secured by real estate:
	Construction, land development and other land	$	656		$	267			$	-		$	923			$	13,327	$	582,639	$	596,889
	Secured by 1-4 family residential properties		7,322			2,115				2,996			12,433				21,603		1,451,528		1,485,564
	Secured by nonfarm, nonresidential properties		1,934			110				-			2,044				21,809		1,391,286		1,415,139
	Other		2			3				-			5				1,327		188,030		189,362
	Commercial and industrial loans		809			198				-			1,007				6,286		1,150,321		1,157,614
	Consumer loans		1,866			146				302			2,314				151		162,843		165,308
	Other loans		17			-				-			17				735		788,253		789,005
	Total	$	12,606		$	2,839			$	3,298		$	18,743			$	65,238	$	5,714,900	$	5,798,881
	(1) Past due 90 days or more but still accruing interest.
Change in allowance for loan losses	'
	Changes in the allowance for loan losses, LHFI were as follows for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	66,448		$	78,738
	Loans charged-off		(10,052	)		(10,173	)
	Recoveries		11,134			11,505
	Net recoveries		1,082			1,332
	Provision for loan losses, LHFI		2,604			(11,438	)
	Balance at end of period	$	70,134		$	68,632
	The following tables detail the balance in the allowance for loan losses, LHFI by portfolio segment at September 30, 2014 and 2013, respectively ($ in thousands):
		2014
		Balance			Charge-offs				Recoveries			Provision for				Balance
		January 1,										Loan Losses				September 30,
	Loans secured by real estate:
	Construction, land development and other land	$	13,165		$	(604	)		$	3,413		$	(6,139	)		$	9,835
	Secured by 1-4 family residential properties		9,633			(2,306	)			861			1,986				10,174
	Secured by nonfarm, nonresidential properties		19,672			(240	)			400			1,099				20,931
	Other		2,080			(277	)			-			571				2,374
	Commercial and industrial loans		15,522			(1,787	)			1,321			4,490				19,546
	Consumer loans		2,405			(1,304	)			2,760			(1,631	)			2,230
	Other loans		3,971			(3,534	)			2,379			2,228				5,044
	Total allowance for loan losses, LHFI	$	66,448		$	(10,052	)		$	11,134		$	2,604			$	70,134
									Disaggregated by Impairment Method
									Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land								$	2,607		$	7,228			$	9,835
	Secured by 1-4 family residential properties									431			9,743				10,174
	Secured by nonfarm, nonresidential properties									2,163			18,768				20,931
	Other									57			2,317				2,374
	Commercial and industrial loans									5,203			14,343				19,546
	Consumer loans									1			2,229				2,230
	Other loans									263			4,781				5,044
	Total allowance for loan losses, LHFI								$	10,725		$	59,409			$	70,134
		2013
		Balance			Charge-offs			Recoveries			Provision for				Balance
		January 1,									Loan Losses				September 30,
	Loans secured by real estate:
	Construction, land development and other land	$	21,838		$	(1,091	)		$	2,561		$	(7,419	)		$	15,889
	Secured by 1-4 family residential properties		12,957			(839	)			363			(3,723	)			8,758
	Secured by nonfarm, nonresidential properties		21,096			(572	)			64			(1,828	)			18,760
	Other		2,197			(910	)			80			497				1,864
	Commercial and industrial loans		14,319			(1,225	)			2,190			2,004				17,288
	Consumer loans		3,087			(1,789	)			3,561			(2,256	)			2,603
	Other loans		3,244			(3,747	)			2,686			1,287				3,470
	Total allowance for loan losses, LHFI	$	78,738		$	(10,173	)		$	11,505		$	(11,438	)		$	68,632
								Disaggregated by Impairment Method
								Individually			Collectively				Total
	Loans secured by real estate:
	Construction, land development and other land								$	957		$	14,932			$	15,889
	Secured by 1-4 family residential properties									260			8,498				8,758
	Secured by nonfarm, nonresidential properties									2,733			16,027				18,760
	Other									37			1,827				1,864
	Commercial and industrial loans									5,393			11,895				17,288
	Consumer loans									2			2,601				2,603
	Other loans									324			3,146				3,470
	Total allowance for loan losses, LHFI								$	9,706		$	58,926			$	68,632

Acquired_Loans_Tables

Acquired Loans (Tables)	9 Months Ended
	Sep. 30, 2014
Acquired Loans [Abstract]	'
Schedule of covered and noncovered acquired loans by type	'
	For the periods presented, acquired loans consisted of the following ($ in thousands):
			30-Sep-14						31-Dec-13
			Noncovered			Covered			Noncovered			Covered
	Loans secured by real estate:
	Construction, land development and other land		$	64,808		$	1,721		$	98,928		$	2,363
	Secured by 1-4 family residential properties			120,366			14,114			157,914			16,416
	Secured by nonfarm, nonresidential properties			214,806			8,270			287,136			10,945
	Other			28,036			2,949			33,948			2,644
	Commercial and industrial loans			103,185			327			149,495			394
	Consumer loans			11,236			-			18,428			119
	Other loans			22,105			226			24,141			1,335
	Acquired loans			564,542			27,607			769,990			34,216
	Less allowance for loan losses, acquired loans			11,136			813			7,249			2,387
	Net acquired loans		$	553,406		$	26,794		$	762,741		$	31,829
Fair value of acquired loans	'
	The following table presents the adjusted fair value of loans acquired as of the date of the BancTrust acquisition ($ in thousands):
	At acquisition date:		15-Feb-13
	Contractually required principal and interest		$	1,256,669
	Nonaccretable difference			201,324
	Cash flows expected to be collected			1,055,345
	Accretable yield			98,394
	FASB ASC Topic 310-20 discount			12,716
	Fair value of loans at acquisition		$	944,235
Changes in the carrying value of acquired loans	'
	The following table presents changes in the net carrying value of the acquired loans for the periods presented ($ in thousands):
			Noncovered						Covered
			Acquired			Acquired			Acquired			Acquired
			Impaired			Not ASC 310-30 (1)			Impaired			Not ASC 310-30 (1)
	Carrying value, net at January 1, 2013		$	72,942		$	6,696		$	45,391		$	2,460
	Loans acquired (2)			790,335			153,900			-			-
	Accretion to interest income			35,538			2,628			5,150			159
	Payments received, net			(229,618	)		(39,281	)		(18,976	)		(819	)
	Other			(24,177	)		(858	)		(3,202	)		(137	)
	Less change in allowance for loan losses, acquired loans			(5,364	)		-			1,803			-
	Carrying value, net at December 31, 2013			639,656			123,085			30,166			1,663
	Accretion to interest income			35,423			1,442			3,010			(1	)
	Payments received, net			(185,880	)		(37,437	)		(7,831	)		126
	Other			(26,284	)		(486	)		(1,429	)		(484	)
	Less change in allowance for loan losses, acquired loans			4,400			(513	)		1,129			445
	Carrying value, net at September 30, 2014		$	467,315		$	86,091		$	25,045		$	1,749
	(1) "Acquired Not ASC 310-30" loans consist of revolving credit agreements and commercial leases that are not in scope for FASB ASC Topic 310-30.
	(2) Adjusted fair value of loans acquired from BancTrust on February 15, 2013.
Changes in accretable yield of acquired loans	'
	Under FASB ASC Topic 310-30, the accretable yield is the excess of expected cash flows at acquisition over the initial fair value of acquired impaired loans and is recorded as interest income over the estimated life of the loans using the effective yield method if the timing and amount of the future cash flows is reasonably estimable.  The following table presents changes in the accretable yield for the nine months ended September 30, 2014 and 2013 ($ in thousands):
			Nine Months Ended September 30,
			2014			2013
	Accretable yield at beginning of period		$	(109,006	)	$	(26,383	)
	Additions due to acquisition (1)			-			(98,394	)
	Accretion to interest income			38,433			28,927
	Disposals			14,520			11,167
	Reclassification to / (from) nonaccretable difference (2)			(26,826	)		(25,772	)
	Accretable yield at end of period		$	(82,879	)	$	(110,455	)
	(1) Accretable yield on loans acquired from BancTrust on February 15, 2013, adjusted for measurement period adjustments.
	(2) Reclassifications from nonaccretable difference are due to lower loss expectations and improvements in expected cash flows.
Components of the allowance for loan losses on acquired loans	'
	The following tables present the components of the allowance for loan losses on acquired loans for the nine months ended September 30, 2014 and 2013 ($ in thousands):
			Noncovered			Covered			Total
	Balance at January 1, 2014		$	7,249		$	2,387		$	9,636
	Provision for loan losses, acquired loans			5,603			(611	)		4,992
	Loans charged-off			(3,310	)		(917	)		(4,227	)
	Recoveries			1,594			(46	)		1,548
	Net charge-offs			(1,716	)		(963	)		(2,679	)
	Balance at September 30, 2014		$	11,136		$	813		$	11,949
			Noncovered			Covered			Total
	Balance at January 1, 2013		$	1,885		$	4,190		$	6,075
	Provision for loan losses, acquired loans			3,038			(1,168	)		1,870
	Loans charged-off			(3,028	)		(663	)		(3,691	)
	Recoveries			1,112			(33	)		1,079
	Net charge-offs			(1,916	)		(696	)		(2,612	)
	Balance at September 30, 2013		$	3,007		$	2,326		$	5,333
Carrying amount of acquired loans by credit quality indicator	'
	The tables below illustrate the carrying amount of acquired loans by credit quality indicator at September 30, 2014 and December 31, 2013 ($ in thousands):
			30-Sep-14
						Commercial Loans
						Pass -			Special Mention -			Substandard -			Doubtful -		Subtotal
						Categories 1-6			Category 7			Category 8			Category 9
	Noncovered Loans:
	Loans secured by real estate:
	Construction, land development and other land						24,028			300			30,121			6,295	$	60,744
	Secured by 1-4 family residential properties						28,487			855			9,856			399		39,597
	Secured by nonfarm, nonresidential properties						164,492			3,818			44,726			1,770		214,806
	Other						22,882			94			4,769			284		28,029
	Commercial and industrial loans						78,663			861			19,755			3,906		103,185
	Consumer loans						4			-			-			-		4
	Other loans						19,724			-			2,350			-		22,074
	Total noncovered loans						338,280			5,928			111,577			12,654		468,439
	Covered Loans: (1)
	Loans secured by real estate:
	Construction, land development and other land						140			-			1,039			395		1,574
	Secured by 1-4 family residential properties						1,644			248			1,190			-		3,082
	Secured by nonfarm, nonresidential properties						4,693			230			3,077			-		8,000
	Other						742			115			727			777		2,361
	Commercial and industrial loans						159			25			143			-		327
	Consumer loans						-			-			-			-		-
	Other loans						226			-			-			-		226
	Total covered loans						7,604			618			6,176			1,172		15,570
	Total acquired loans					$	345,884		$	6,546		$	117,753		$	13,826	$	484,009
			Consumer Loans
			Current			Past Due			Past Due			Nonaccrual			Subtotal		Total
						30-89 Days			90 Days or More								Acquired Loans
	Noncovered Loans:
	Loans secured by real estate:
	Construction, land development and other land		$	3,695		$	58		$	311		$	-		$	4,064	$	64,808
	Secured by 1-4 family residential properties			75,408			2,160			3,061			140			80,769		120,366
	Secured by nonfarm, nonresidential properties			-			-			-			-			-		214,806
	Other			7			-			-			-			7		28,036
	Commercial and industrial loans			-			-			-			-			-		103,185
	Consumer loans			11,000			164			68			-			11,232		11,236
	Other loans			31			-			-			-			31		22,105
	Total noncovered loans			90,141			2,382			3,440			140			96,103		564,542
	Covered Loans: (1)
	Loans secured by real estate:
	Construction, land development and other land			147			-			-			-			147		1,721
	Secured by 1-4 family residential properties			10,133			546			353			-			11,032		14,114
	Secured by nonfarm, nonresidential properties			270			-			-			-			270		8,270
	Other			554			-			34			-			588		2,949
	Commercial and industrial loans			-			-			-			-			-		327
	Consumer loans			-			-			-			-			-		-
	Other loans			-			-			-			-			-		226
	Total covered loans			11,104			546			387			-			12,037		27,607
	Total acquired loans		$	101,245		$	2,928		$	3,827		$	140		$	108,140	$	592,149
	-1	Total dollar balances are presented in this table; however, these loans are covered by the loss-share agreement with the FDIC.
	TNB is at risk for only 20% of the losses incurred on these loans.
			31-Dec-13
						Commercial Loans
						Pass -			Special Mention -			Substandard -			Doubtful -		Subtotal
						Categories 1-6			Category 7			Category 8			Category 9
	Noncovered Loans:
	Loans secured by real estate:
	Construction, land development and other land					$	39,075		$	2,506		$	42,486		$	8,445	$	92,512
	Secured by 1-4 family residential properties						33,810			2,983			17,422			538		54,753
	Secured by nonfarm, nonresidential properties						184,594			9,027			88,952			4,563		287,136
	Other						28,156			1,437			4,071			184		33,848
	Commercial and industrial loans						116,818			2,248			24,084			6,039		149,189
Consumer loans						21			-			-			-		21
Other loans						21,881			-			882			1,306		24,069
Total noncovered loans						424,355			18,201			177,897			21,075		641,528
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land						228			-			1,126			771		2,125
Secured by 1-4 family residential properties						1,629			430			1,798			-		3,857
Secured by nonfarm, nonresidential properties						5,446			109			4,723			-		10,278
Other						832			134			717			2		1,685
Commercial and industrial loans						254			28			112			-		394
Consumer loans						-			-			-			-		-
Other loans						271			-			414			646		1,331
Total covered loans						8,660			701			8,890			1,419		19,670
Total acquired loans					$	433,015		$	18,902		$	186,787		$	22,494	$	661,198
		Consumer Loans
		Current			Past Due			Past Due			Nonaccrual			Subtotal		Total
					30-89 Days			90 Days or More								Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development and other land		$	5,813		$	108		$	495		$	-		$	6,416	$	98,928
Secured by 1-4 family residential properties			95,987			3,599			3,466			109			103,161		157,914
Secured by nonfarm, nonresidential properties			-			-			-			-			-		287,136
Other			100			-			-			-			100		33,948
Commercial and industrial loans			306			-			-			-			306		149,495
Consumer loans			18,076			239			92			-			18,407		18,428
Other loans			72			-			-			-			72		24,141
Total noncovered loans			120,354			3,946			4,053			109			128,462		769,990
Covered Loans: (1)
Loans secured by real estate:
Construction, land development and other land			133			77			28			-			238		2,363
Secured by 1-4 family residential properties			11,179			428			952			-			12,559		16,416
Secured by nonfarm, nonresidential properties			495			-			172			-			667		10,945
Other			617			342			-			-			959		2,644
Commercial and industrial loans			-			-			-			-			-		394
Consumer loans			119			-			-			-			119		119
Other loans			4			-			-			-			4		1,335
Total covered loans			12,547			847			1,152			-			14,546		34,216
Total acquired loans		$	132,901		$	4,793		$	5,205		$	109		$	143,008	$	804,206
-1	Total dollar balances are presented in this table; however, these loans are covered by the loss-share agreement with the FDIC.
TNB is at risk for only 20% of the losses incurred on these loans.
Aging analysis of past due and nonaccrual acquired loans, by class	'
	The following tables provide an aging analysis of contractually past due and nonaccrual acquired loans, by class at September 30, 2014 and December 31, 2013 ($ in thousands):
			30-Sep-14
			Past Due
			30-59 Days			60-89 Days			90 Days			Total			Nonaccrual (2)		Current		Total Acquired
									or More (1)								Loans		Loans
	Noncovered loans:
	Loans secured by real estate:
	Construction, land development and other land		$	176		$	1,208		$	24,675		$	26,059		$	201	$	38,548	$	64,808
	Secured by 1-4 family residential properties			2,211			900			5,143			8,254			214		111,898		120,366
	Secured by nonfarm, nonresidential properties			1,984			260			13,520			15,764			-		199,042		214,806
	Other			-			-			747			747			-		27,289		28,036
	Commercial and industrial loans			381			328			1,512			2,221			495		100,469		103,185
	Consumer loans			105			60			68			233			-		11,003		11,236
	Other loans			27			-			-			27			-		22,078		22,105
	Total noncovered loans			4,884			2,756			45,665			53,305			910		510,327		564,542
	Covered loans:
	Loans secured by real estate:
	Construction, land development and other land			-			-			395			395			-		1,326		1,721
	Secured by 1-4 family residential properties			748			4			484			1,236			-		12,878		14,114
	Secured by nonfarm, nonresidential properties			1,534			-			-			1,534			-		6,736		8,270
	Other			253			-			1,126			1,379			-		1,570		2,949
	Commercial and industrial loans			10			-			41			51			78		198		327
	Consumer loans			-			-			-			-			-		-		-
	Other loans			-			-			-			-			-		226		226
	Total covered loans			2,545			4			2,046			4,595			78		22,934		27,607
	Total acquired loans		$	7,429		$	2,760		$	47,711		$	57,900		$	988	$	533,261	$	592,149
	(1) Past due 90 days or more but still accruing interest.
	(2) Acquired loans not accounted for under FASB ASC Topic 310-30.
			31-Dec-13
			Past Due
			30-59 Days			60-89 Days			90 Days			Total			Nonaccrual (2)		Current		Total Acquired
									or More (1)								Loans		Loans
	Noncovered loans:
	Loans secured by real estate:
	Construction, land development and other land		$	1,648		$	468		$	31,744		$	33,860		$	67	$	65,001	$	98,928
	Secured by 1-4 family residential properties			3,901			1,166			7,589			12,656			116		145,142		157,914
	Secured by nonfarm, nonresidential properties			4,851			3,127			15,421			23,399			461		263,276		287,136
	Other			40			-			1,922			1,962			33		31,953		33,948
	Commercial and industrial loans			526			217			3,387			4,130			1,170		144,195		149,495
	Consumer loans			205			34			92			331			-		18,097		18,428
	Other loans			-			-			153			153			20		23,968		24,141
	Total noncovered loans			11,171			5,012			60,308			76,491			1,867		691,632		769,990
	Covered loans:
	Loans secured by real estate:
	Construction, land development and other land			87			-			553			640			445		1,278		2,363
	Secured by 1-4 family residential properties			515			358			1,142			2,015			-		14,401		16,416
	Secured by nonfarm, nonresidential properties			243			1,662			793			2,698			-		8,247		10,945
	Other			571			139			2			712			-		1,932		2,644
	Commercial and industrial loans			13			-			-			13			41		340		394
	Consumer loans			-			-			-			-			-		119		119
	Other loans			-			-			646			646			-		689		1,335
	Total covered loans			1,429			2,159			3,136			6,724			486		27,006		34,216
	Total acquired loans		$	12,600		$	7,171		$	63,444		$	83,215		$	2,353	$	718,638	$	804,206
	(1) Past due 90 days or more but still accruing interest.
	(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

Mortgage_Banking_Tables

Mortgage Banking (Tables)	9 Months Ended
	Sep. 30, 2014
Mortgage Banking [Abstract]	'
Schedule of activity in mortgage servicing rights	'
	The activity in mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	67,834		$	47,341
	Origination of servicing assets		8,884			15,551
	Change in fair value:
	Due to market changes		(3,060	)		7,881
	Due to runoff		(6,568	)		(7,623	)
	Balance at end of period	$	67,090		$	63,150
Schedule of mortgage loans sold and serviced for others	'
	The table below details the mortgage loans sold and serviced for others for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Federal National Mortgage Association	$	3,556,490		$	3,499,659
	Government National Mortgage Association		1,916,010			1,830,420
	Federal Home Loan Mortgage Corporation		83,250			92,599
	Other		30,023			38,998
	Total mortage loans sold and serviced for others	$	5,585,773		$	5,461,676
Changes in the reserve for mortgage loan servicing putback expense	'
	Changes in the reserve for mortgage loan servicing putback expense were as follows for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	1,050		$	7,800
	Provision for putback expenses		450			1,050
	Losses		(403	)		(3,867	)
	Balance at end of period	$	1,097		$	4,983

Other_Real_Estate_and_Covered_1

Other Real Estate and Covered Other Real Estate (Tables)	9 Months Ended
	Sep. 30, 2014
Other Real Estate and Covered Other Real Estate [Abstract]	'
Changes and gains (losses), net on non-covered other real estate	'
	For the periods presented, changes and gains (losses), net on other real estate, excluding covered other real estate, were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	106,539		$	78,189
	Additions (1)		29,972			73,890
	Disposals		(34,641	)		(29,605	)
	Write-downs		(4,833	)		(6,145	)
	Balance at end of period	$	97,037		$	116,329
	Gain (Loss), net on the sale of other real estate included in ORE/Foreclosure expense	$	2,847		$	(110	)
	(1) Additions at September 30, 2013 included $40.1 million of other real estate acquired from BancTrust on February 15, 2013.
Other real estate by type of property	'
	Other real estate, excluding covered other real estate, by type of property consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Construction, land development and other land properties	$	63,127		$	65,273
	1-4 family residential properties		9,998			14,696
	Nonfarm, nonresidential properties		22,251			26,433
	Other real estate properties		1,661			137
	Total other real estate, excluding covered other real estate	$	97,037		$	106,539
Other real estate by geographic location	'
	Other real estate, excluding covered other real estate, by geographic location consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Alabama	$	24,256		$	25,912
	Florida		36,608			34,480
	Mississippi (1)		16,419			22,766
	Tennessee (2)		11,347			12,892
	Texas		8,407			10,489
	Total other real estate, excluding covered other real estate	$	97,037		$	106,539
	(1) Mississippi includes Central and Southern Mississippi Regions
	(2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions
Changes and gains (losses), net on covered other real estate	'
	For the nine months ended September 30, 2014 and 2013, changes and (losses) gains, net on covered other real estate were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	5,108		$	5,741
	Transfers from covered loans		690			1,380
	FASB ASC 310-30 adjustment for the residual recorded investment		9			(541	)
	Net transfers from covered loans		699			839
	Disposals		(870	)		(848	)
	Write-downs		(791	)		(640	)
	Balance at end of period	$	4,146		$	5,092
	(Loss) Gain, net on the sale of covered other real estate included in ORE/Foreclosure expense	$	(132	)	$	47
Covered other real estate by type of property	'
	Covered other real estate by type of property consisted of the following for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Construction, land development and other land properties	$	713		$	733
	1-4 family residential properties		1,267			1,981
	Nonfarm, nonresidential properties		2,166			2,394
	Total covered other real estate	$	4,146		$	5,108

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	9 Months Ended
	Sep. 30, 2014
FDIC Indemnification Asset [Abstract]	'
Changes in FDIC indemnification asset	'
	For the nine months ended September 30, 2014 and 2013, changes in the FDIC indemnification asset were as follows ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Balance at beginning of period	$	14,347		$	21,774
	(Amortization) Accretion		(1,633	)		(141	)
	Transfers to FDIC claims		(4,021	)		(1,097	)
	Change in expected cash flows		(373	)		(3,251	)
	Change in FDIC true-up provision		(166	)		(200	)
	Balance at end of period	$	8,154		$	17,085

Deposits_Tables

Deposits (Tables)	9 Months Ended
	Sep. 30, 2014
Deposits [Abstract]	'
Deposits summary	'
	Deposits consisted of the following for the periods presented ($ in thousands):
		30-Sep-14		31-Dec-13
	Noninterest-bearing demand deposits	$	2,723,480	$	2,663,503
	Interest-bearing demand		1,819,986		1,923,701
	Savings		2,942,663		2,997,294
	Time		2,027,096		2,275,404
	Total	$	9,513,225	$	9,859,902

Defined_Benefit_and_Other_Post1

Defined Benefit and Other Postretirement Benefits (Tables)	9 Months Ended
	Sep. 30, 2014
Trustmark Capital Accumulation Plan [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net periodic benefit cost	'
	The following table presents information regarding net periodic benefit cost for Trustmark’s qualified pension plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Net periodic benefit cost:
	Service cost	$	123		$	148		$	372		$	446
	Interest cost		1,328			1,252			3,971			3,506
	Expected return on plan assets		(1,563	)		(2,060	)		(4,681	)		(5,660	)
	Recognized net loss due to settlement		1,709			838			2,459			1,363
	Recognized net actuarial (gain) loss		(1,701	)		1,374			(229	)		4,142
	Net periodic benefit cost	$	(104	)	$	1,552		$	1,892		$	3,797
Supplemental Retirement Plan [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net periodic benefit cost	'
	The following table presents information regarding net periodic benefit cost for Trustmark’s nonqualified supplemental retirement plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Net periodic benefit cost:
	Service cost	$	74		$	150		$	222		$	448
	Interest cost		548			484			1,650			1,452
	Amortization of prior service cost		63			62			188			188
	Recognized net actuarial loss		164			260			497			778
	Net periodic benefit cost	$	849		$	956		$	2,557		$	2,866

Stock_and_Incentive_Compensati1

Stock and Incentive Compensation Plans (Tables)	9 Months Ended
	Sep. 30, 2014
Stock and Incentive Compensation Plans [Abstract]	'
Summary of stock and incentive plans' vesting periods and contractual terms	'
	The following table summarizes the stock and incentive plans’ vesting periods and contractual terms in years:
		Vesting			Contractual
		Period			Term
	Stock option awards - 1997 plan		4			10
	Stock option awards - 2005 plan		5			7
	Performance awards (includes acheivement shares for grants after 2013)		3			-
	Achievement shares from performance grants prior to 2013		3			-
	Time-vested awards		3			-
Summary of stock and incentive plan activity	'
	The following tables summarize the stock and incentive plan activity for the periods presented:
		Three Months Ended September 30, 2014
		Stock			Performance			Time-Vested
		Options			Awards			Awards
	Outstanding/nonvested shares, beginning of period		-			184,133			331,183
	Forfeited		-			-			(1,249	)
	Outstanding/nonvested shares, end of period		-			184,133			329,934
		Nine Months Ended September 30, 2014
		Stock			Performance			Time-Vested
		Options			Awards			Awards
	Outstanding/nonvested shares, beginning of period		105,450			160,520			291,634
	Granted		-			73,726			104,190
	Exercised or released from restriction		-			(38,580	)		(60,706	)
	Expired		(105,450	)		-			-
	Forfeited		-			(11,533	)		(5,184	)
	Outstanding/nonvested shares, end of period		-			184,133			329,934
Compensation expense for stock and incentive plans	'
	The following table presents information regarding compensation expense for stock and incentive plans for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
	Compensation expense - stock and incentive plans:	2014			2013			2014			2013
	Performance awards	$	267		$	222		$	797		$	620
	Time-vested awards		788			754			2,493			2,230
	Total	$	1,055		$	976		$	3,290		$	2,850

Earnings_Per_Share_EPS_Tables

Earnings Per Share (EPS) (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share (EPS) [Abstract]	'
Weighted-average shares used to calculate basic and diluted EPS	'
	The following table reflects weighted-average shares used to calculate basic and diluted EPS for the periods presented (in thousands):
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Basic shares		67,440		67,177		67,430		66,779
	Dilutive shares		169		205		150		184
	Diluted shares		67,609		67,382		67,580		66,963
Weighted-average antidilutive stock awards	'
	Weighted-average antidilutive stock awards were excluded in determining diluted EPS.  The following table reflects weighted-average antidilutive stock awards for the periods presented (in thousands):
		Three Months Ended September 30,				Nine Months Ended September 30,
		2014		2013		2014		2013
	Weighted-average antidilutive stock awards		-		270		42		379

Statements_of_Cash_Flows_Table

Statements of Cash Flows (Tables)	9 Months Ended
	Sep. 30, 2014
Statements of Cash Flows [Abstract]	'
Cash Flows Supplementary Disclosures	'
	The following table reflects specific transaction amounts for the periods presented ($ in thousands):
		Nine Months Ended September 30,
		2014			2013
	Income taxes paid	$	13,205		$	14,220
	Interest expense paid on deposits and borrowings		16,361			18,656
	Noncash transfers from loans to foreclosed properties (1)		30,671			34,226
	Assets acquired in business combinations		-			1,845,930
	Liabilities assumed in business combinations		-			1,821,066
	(1) Includes transfers from covered loans to foreclosed properties
Changes to the Statement of Cash Flows	'
	The following table reflects the changes to the Consolidated Statements of Cash Flows for the periods presented ($ in thousands):
		As Reported			Adjustment			As Adjusted
	Nine Months Ended September 30, 2013:
	Net cash provided by operating activities	$	151,260		$	112,755		$	264,015
	Net cash used in investing activities		(148,996	)		(112,755	)		(261,751	)
	Net cash provided by financing activities		101,942			-			101,942
	Increase in cash and cash equivalents		104,206			-			104,206
	Cash and cash equivalents at beginning of period		231,489			-			231,489
	Cash and cash equivalents at end of period	$	335,695		$	-		$	335,695
	Year Ended December 31, 2013:
	Net cash provided by operating activities	$	155,417		$	145,766		$	301,183
	Net cash used in investing activities		(113,201	)		(145,766	)		(258,967	)
	Net cash provided by financing activities		72,056			-			72,056
	Increase in cash and cash equivalents		114,272			-			114,272
	Cash and cash equivalents at beginning of year		231,489			-			231,489
	Cash and cash equivalents at end of year	$	345,761		$	-		$	345,761
	Year Ended December 31, 2012:
	Net cash provided by operating activities	$	92,125		$	20,152		$	112,277
	Net cash provided by (used in) investing activities		193,891			(20,152	)		173,739
	Net cash used in financing activities		(257,152	)		-			(257,152	)
	Increase in cash and cash equivalents		28,864			-			28,864
	Cash and cash equivalents at beginning of year		202,625			-			202,625
	Cash and cash equivalents at end of year	$	231,489		$	-		$	231,489

Shareholders_Equity_Tables

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2014
Shareholders' Equity [Abstract]	'
Table of actual regulatory capital amounts and ratios	'
	The following table provides Trustmark's and TNB's actual regulatory capital amounts and ratios for the periods presented ($ in thousands):
		Actual						Minimum Regulatory						Minimum Regulatory
		Regulatory Capital						Capital Required						Provision to be
														Well-Capitalized
		Amount			Ratio			Amount			Ratio			Amount			Ratio
	At September 30, 2014:
	Total Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,218,220			14.7	%	$	663,009			8	%		n/	a		n/	a
	Trustmark National Bank		1,194,589			14.44	%		661,737			8	%	$	827,171			10	%
	Tier 1 Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,116,166			13.47	%	$	331,504			4	%		n/	a		n/	a
	Trustmark National Bank		1,094,124			13.23	%		330,868			4	%	$	496,302			6	%
	Tier 1 Capital (to Average Assets)
	Trustmark Corporation	$	1,116,166			9.54	%	$	467,917			4	%		n/	a		n/	a
	Trustmark National Bank		1,094,124			9.37	%		467,135			4	%	$	583,919			5	%
	At December 31, 2013:
	Total Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,122,904			14.18	%	$	633,310			8	%		n/	a		n/	a
	Trustmark National Bank		1,076,391			13.74	%		626,672			8	%	$	783,340			10	%
	Tier 1 Capital (to Risk Weighted Assets)
	Trustmark Corporation	$	1,026,858			12.97	%	$	316,655			4	%		n/	a		n/	a
	Trustmark National Bank		982,925			12.55	%		313,336			4	%	$	470,004			6	%
	Tier 1 Capital (to Average Assets)
	Trustmark Corporation	$	1,026,858			9.06	%	$	453,487			4	%		n/	a		n/	a
	Trustmark National Bank		982,925			8.76	%		448,665			4	%	$	560,831			5	%
Components of accumulated other comprehensive income (loss) and the related tax effects	'
	The following table presents the components of other comprehensive income (loss) and the related tax effects allocated to each component for the nine months ended September 30, 2014 and 2013 ($ in thousands).  Reclassification adjustments related to securities available for sale are included in securities gains, net in the accompanying consolidated statements of income.  The amortization of prior service cost, recognized net loss due to settlement and recognized net actuarial loss on pension and other postretirement benefit plans are included in the computation of net periodic benefit cost (see Note 10 – Defined Benefit and Other Postretirement Benefits for additional details).
		Before Tax			Tax (Expense)			Net of Tax
		Amount			Benefit			Amount
	Nine Months Ended September 30, 2014:
	Securities available for sale and transferred securities:
	Unrealized holding gains arising during the period	$	9,415		$	(3,601	)	$	5,814
	Reclassification adjustment for net gains realized in net income		(300	)		115			(185	)
	Change in net unrealized holding loss on securities transferred to held to maturity		4,444			(1,700	)		2,744
	Total securities available for sale and transferred securities		13,559			(5,186	)		8,373
	Pension and other postretirement benefit plans:
	Net change in prior service costs		188			(72	)		116
	Recognized net loss due to settlement		2,459			(941	)		1,518
	Recognized net actuarial loss		268			(102	)		166
	Total pension and other postretirement benefit plans		2,915			(1,115	)		1,800
	Derivatives:
	Change in accumulated gain on effective cash flow hedge derivatives		(1,307	)		500			(807	)
	Total other comprehensive income	$	15,167		$	(5,801	)	$	9,366
	Nine Months Ended September 30, 2013:
	Securities available for sale:
	Unrealized holding losses arising during the period	$	(98,130	)	$	37,534		$	(60,596	)
	Reclassification adjustment for net gains realized in net income		(378	)		145			(233	)
	Total securities available for sale		(98,508	)		37,679			(60,829	)
	Pension and other postretirement benefit plans:
	Net change in prior service costs		188			(72	)		116
	Recognized net loss due to settlement		1,363			(521	)		842
	Recognized net actuarial loss		4,920			(1,882	)		3,038
	Total pension and other postretirement benefit plans		6,471			(2,475	)		3,996
	Derivatives:
	Change in accumulated gain on effective cash flow hedge derivatives		1,963			(751	)		1,212
	Total other comprehensive loss	$	(90,074	)	$	34,453		$	(55,621	)
Components of reclassifications out of accumulated other comprehensive income	'
	The following table presents the changes in the balances of each component of accumulated other comprehensive loss for the periods ended September 30, 2014 and 2013 ($ in thousands).  All amounts are presented net of tax.
		Securities			Defined Benefit Pension Items			Cash Flow Hedge Derivatives			Total
		Available for Sale
		and Transferred
		Securities
	Balance at January 1, 2014	$	(25,462	)	$	(19,793	)	$	1,524		$	(43,731	)
	Other comprehensive income (loss) before reclassification		8,558			1,800			(807	)		9,551
	Amounts reclassified from accumulated other comprehensive loss		(185	)		-			-			(185	)
	Net other comprehensive income (loss)		8,373			1,800			(807	)		9,366
	Balance at September 30, 2014	$	(17,089	)	$	(17,993	)	$	717		$	(34,365	)
	Balance at January 1, 2013	$	44,935		$	(41,540	)	$	-		$	3,395
	Other comprehensive (loss) income before reclassification		(60,596	)		3,996			1,212			(55,388	)
	Amounts reclassified from accumulated other comprehensive loss		(233	)		-			-			(233	)
	Net other comprehensive (loss) income		(60,829	)		3,996			1,212			(55,621	)
	Balance at September 30, 2013	$	(15,894	)	$	(37,544	)	$	1,212		$	(52,226	)

Fair_Value_Tables

Fair Value (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value [Abstract]	'
Financial assets and liabilities measured at fair value recurring basis	'
	The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2014 and December 31, 2013, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value ($ in thousands).  There were no transfers between fair value levels for the nine months ended September 30, 2014 and the year ended December 31, 2013.
		30-Sep-14
		Total			Level 1			Level 2		Level 3
	U.S. Treasury securities	$	100		$	-		$	100	$	-
	U.S. Government agency obligations		113,790			-			113,790		-
	Obligations of states and political subdivisions		165,463			-			165,463		-
	Mortgage-backed securities		2,051,027			-			2,051,027		-
	Asset-backed securities and structured financial products		33,515			-			33,515		-
	Securities available for sale		2,363,895			-			2,363,895		-
	Loans held for sale		135,562			-			135,562		-
	Mortgage servicing rights		67,090			-			-		67,090
	Other assets - derivatives		5,034			(500	)		4,194		1,340
	Other liabilities - derivatives		3,746			181			3,565		-
		31-Dec-13
		Total			Level 1			Level 2		Level 3
	U.S. Treasury securities	$	502		$	-		$	502	$	-
	U.S. Government agency obligations		169,472			-			169,472		-
	Obligations of states and political subdivisions		171,738			-			171,738		-
	Mortgage-backed securities		1,788,505			-			1,788,505		-
	Asset-backed securities and structured financial products		63,937			-			63,937		-
	Securities available for sale		2,194,154			-			2,194,154		-
	Loans held for sale		149,169			-			149,169		-
	Mortgage servicing rights		67,834			-			-		67,834
	Other assets - derivatives		4,994			(2,579	)		7,447		126
	Other liabilities - derivatives		3,298			581			2,717		-
Changes in level 3 assets measured at fair value on a recurring basis	'
	The changes in Level 3 assets measured at fair value on a recurring basis for the periods ended September 30, 2014 and 2013 are summarized as follows ($ in thousands):
		MSR			Other Assets - Derivatives
	Balance, January 1, 2014	$	67,834		$	126
	Total net (losses) gains included in Mortgage banking, net (1)		(9,628	)		3,508
	Additions		8,884			-
	Sales		-			(2,294	)
	Balance, September 30, 2014	$	67,090		$	1,340
	The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held at September 30, 2014	$	(3,060	)	$	807
	Balance, January 1, 2013	$	47,341		$	2,284
	Total net gains included in Mortgage banking, net (1)		258			7,558
	Additions		15,551			-
	Sales		-			(7,795	)
	Balance, September 30, 2013	$	63,150		$	2,047
	The amount of total gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held at September 30, 2013	$	7,881		$	954
	(1) Total net (losses) gains included in net income relating to MSR includes changes in fair value due to market changes and due to runoff.
Carrying amounts and estimated fair values of financial instruments	'
	The carrying amounts and estimated fair values of financial instruments at September 30, 2014 and December 31, 2013, are as follows ($ in thousands):
		30-Sep-14						31-Dec-13
		Carrying			Estimated			Carrying		Estimated
		Value			Fair Value			Value		Fair Value
	Financial Assets:
	Level 2 Inputs:
	Cash and short-term investments	$	241,510		$	241,510		$	353,014	$	353,014
	Securities held to maturity		1,169,640			1,170,213			1,168,728		1,150,833
	Level 3 Inputs:
	Net LHFI		6,263,517			6,348,938			5,732,433		5,787,408
	Net acquired loans		580,200			580,200			794,570		794,570
	FDIC indemnification asset		8,154			8,154			14,347		14,347
	Financial Liabilities:
	Level 2 Inputs:
	Deposits		9,513,225			9,518,584			9,859,902		9,866,118
	Short-term liabilities		924,517			924,517			317,972		317,972
	Long-term FHLB advances		8,003			8,014			8,458		8,474
	Subordinated notes		49,928			53,665			49,904		53,387
	Junior subordinated debt securities		61,856			46,392			61,856		40,206

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2014
Derivative Financial Instruments [Abstract]	'
Fair value of derivative instruments	'
	The following tables disclose the fair value of derivative instruments in Trustmark’s balance sheets as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):
		30-Sep-14			31-Dec-13
	Derivatives in hedging relationships
	Interest rate contracts:
	Interest rate swaps included in other assets	$	1,161		$	2,469
	Forward contracts included in other liabilities		623			(1,911	)
	Derivatives not designated as hedging instruments
	Interest rate contracts:
	Futures contracts included in other assets	$	(816	)	$	(2,662	)
	Exchange traded purchased options included in other assets		316			83
	OTC written options (rate locks) included in other assets		1,340			126
	Interest rate swaps included in other assets		3,017			4,962
	Credit risk participation agreements included in other assets		16			16
	Exchange traded written options included in other liabilities		181			581
	Interest rate swaps included in other liabilities		2,926			4,628
	Credit risk participation agreements included in other liabilities		16			16
Effects of derivative instruments on statements of operations	'
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Derivatives in hedging relationships
	Amount of (loss) gain recognized in mortgage banking, net	$	(1,765	)	$	(13,008	)	$	2,534		$	(2,141	)
	Derivatives not designated as hedging instruments
	Amount of (loss) gain recognized in mortgage banking, net	$	(986	)	$	2,728		$	7,267		$	(5,421	)
	Amount of gain (loss) recognized in bankcard and other fees		3			(203	)		(239	)		192
Schedule of amount included in other comprehensive loss for derivative instruments designated as hedges of cash flows	'
	The following table discloses the amount included in other comprehensive income (loss) for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2014			2013			2014			2013
	Derivatives in cash flow hedging relationship
	Amount of gain (loss) recognized in other comprehensive income (loss)	$	163		$	(242	)	$	(807	)	$	1,212
Information about financial instruments that are eligible for offset in the consolidated balance sheets	'
	Information about financial instruments that are eligible for offset in the consolidated balance sheets as of September 30, 2014 and December 31, 2013 is presented in the following tables ($ in thousands):
	Offsetting of Derivative Assets
	As of September 30, 2014
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Assets			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Assets presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Received			Net Amount
	Derivatives	$	4,178		$	-		$	4,178		$	(1,038	)	$	(650	)	$	2,490
	Offsetting of Derivative Liabilities
	As of September 30, 2014
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Liabilities			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Liabilities presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Posted			Net Amount
	Derivatives	$	2,926		$	-		$	2,926		$	(1,038	)	$	-		$	1,888
	Offsetting of Derivative Assets
	As of December 31, 2013
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Assets			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Assets presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Received			Net Amount
	Derivatives	$	7,431		$	-		$	7,431		$	(967	)	$	(1,920	)	$	4,544
	Offsetting of Derivative Liabilities
	As of December 31, 2013
											Gross Amounts Not Offset in the Statement of Financial Position
		Gross Amounts of Recognized Liabilities			Gross Amounts Offset in the Statement of Financial Position			Net Amounts of Liabilities presented in the Statement of Financial Position			Financial Instruments			Cash Collateral Posted			Net Amount
	Derivatives	$	4,628		$	-		$	4,628		$	(967	)	$	-		$	3,661

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Segment Information [Abstract]	'
Schedule of Segment Information	'
	The following table discloses financial information by reportable segment for the periods presented ($ in thousands):
		Three Months Ended September 30,					Nine Months Ended September 30,
		2014		2013			2014		2013
	General Banking
	Net interest income	$	105,672	$	98,135		$	305,422	$	285,915
	Provision for loan losses, net		4,203		(332	)		7,596		(9,568	)
	Noninterest income		25,663		31,443			81,685		90,352
	Noninterest expense		86,935		89,198			265,067		274,545
	Income before income taxes		40,197		40,712			114,444		111,290
	Income taxes		9,535		10,040			26,012		28,216
	General banking net income	$	30,662	$	30,672		$	88,432	$	83,074
	Selected Financial Information
	Average assets	$	12,013,572	$	11,688,102		$	11,928,029	$	11,383,231
	Depreciation and amortization	$	8,896	$	9,186		$	26,289	$	26,905
	Wealth Management
	Net interest income	$	467	$	192		$	749	$	480
	Noninterest income		7,989		7,459			23,784		21,338
	Noninterest expense		6,303		6,294			19,357		18,230
	Income before income taxes		2,153		1,357			5,176		3,588
	Income taxes		712		446			1,714		1,178
	Wealth management net income	$	1,441	$	911		$	3,462	$	2,410
	Selected Financial Information
	Average assets	$	263	$	461		$	1,478	$	256
	Depreciation and amortization	$	48	$	39		$	143	$	118
	Insurance
	Net interest income	$	90	$	102		$	250	$	237
	Noninterest income		9,241		8,231			25,642		23,496
	Noninterest expense		6,956		6,032			20,149		18,089
	Income before income taxes		2,375		2,301			5,743		5,644
	Income taxes		889		850			2,148		2,107
	Insurance net income	$	1,486	$	1,451		$	3,595	$	3,537
	Selected Financial Information
	Average assets	$	77,378	$	70,545		$	64,808	$	67,268
	Depreciation and amortization	$	188	$	258		$	656	$	777
	Consolidated
	Net interest income	$	106,229	$	98,429		$	306,421	$	286,632
	Provision for loan losses, net		4,203		(332	)		7,596		(9,568	)
	Noninterest income		42,893		47,133			131,111		135,186
	Noninterest expense		100,194		101,524			304,573		310,864
	Income before income taxes		44,725		44,370			125,363		120,522
	Income taxes		11,136		11,336			29,874		31,501
	Consolidated net income	$	33,589	$	33,034		$	95,489	$	89,021
	Selected Financial Information
	Average assets	$	12,091,213	$	11,759,108		$	11,994,315	$	11,450,755
	Depreciation and amortization	$	9,132	$	9,483		$	27,088	$	27,800

Business_Basis_of_Financial_St1

Business, Basis of Financial Statement Presentation and Principles of Consolidation (Details)	Sep. 30, 2014
	Office
Business, Basis of Financial Statement Presentation and Principles of Consolidation [Abstract]	'
Number of offices	207

Business_Combinations_Details

Business Combinations (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Jul. 26, 2013
In Thousands, unless otherwise specified			Somerville Bank & Trust Company [Member]	Oxford, Mississippi Branches [Member]
			Branch	Branch
Business Acquisition [Line Items]	'	'	'	'
Number of branches acquired	'	'	5	2
Total assets	$0	$1,845,930	$219,600	'
Business acquisition purchase price allocation deposits acquired	'	'	'	$11,700

Business_Combinations_BancTrus

Business Combinations, BancTrust Financial Group (Details) (USD $)	12 Months Ended			0 Months Ended	3 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2013	Sep. 30, 2014	Sep. 30, 2013	Feb. 15, 2013	Mar. 31, 2014	Mar. 31, 2013	Sep. 30, 2014	Dec. 31, 2013
				BancTrust Financial Group, Inc. [Member]	BancTrust Financial Group, Inc. [Member]	BancTrust Financial Group, Inc. [Member]	BancTrust Financial Group, Inc. [Member]	BancTrust Financial Group, Inc. [Member]
							Market
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'
Age of acquired entity	'	'	'	'26 years	'	'	'	'
Preferred stock and warrants repurchased	'	'	'	$50,000,000	'	'	'	'
Issued value of preferred stock associated warrant under capital purchase program	'	'	'	52,600,000	'	'	'	'
Equity issued, per share of acquired company (in shares)	'	'	'	0.125	'	'	'	'
Decrease in acquired non covered loans as measurement period adjustment	6,800,000	'	'	'	'	'	'	6,800,000
Decrease in Premises and equipment as measurement period adjustment	'	'	'	'	'	'	'	627,000
Decrease in other real estate as measurement period adjustment	'	'	'	'	'	'	'	2,600,000
Increase in deferred tax asset as measurement period adjustment	'	'	'	'	'	'	'	3,400,000
Increase in goodwill as measurement period adjustment	'	'	'	'	'	'	'	6,300,000
Transfer to other real estate as measurement period adjustment	'	'	'	'	'	'	'	1,600,000
Decrease in goodwill with a corresponding increase in the deferred tax asset as a measurement period adjustment	'	'	'	'	7,400,000	'	'	'
Assets [Abstract]	'	'	'	'	'	'	'	'
Cash and due from banks	'	'	'	141,616,000	'	'	'	'
Securities available for sale	'	'	'	528,016,000	'	'	'	'
Loans held for sale	'	'	'	1,050,000	'	'	'	'
Acquired noncovered loans	'	'	'	944,235,000	'	'	'	'
Premises and equipment, net	'	'	'	54,952,000	'	'	'	'
Identifiable intangible assets	'	'	'	33,498,000	'	'	'	'
Other real estate	'	'	'	40,103,000	'	'	'	'
Other assets	'	'	'	109,423,000	'	'	'	'
Total Assets	'	0	1,845,930,000	1,852,893,000	'	'	'	'
Liabilities [Abstract]	'	'	'	'	'	'	'	'
Deposits	'	'	'	1,740,254,000	'	'	'	'
Other borrowings	'	'	'	64,051,000	'	'	'	'
Other liabilities	'	'	'	16,761,000	'	'	'	'
Total Liabilities	'	0	1,821,066,000	1,821,066,000	'	'	'	'
Net identified assets acquired at fair value	'	'	'	31,827,000	'	'	'	'
Goodwill	372,851,000	365,500,000	'	74,247,000	'	'	'	'
Net assets acquired at fair value	'	'	'	106,074,000	'	'	'	'
Equity issued (in shares)	'	'	'	2,240,000	'	'	'	'
Business acquisition, equity issued, value assigned	'	'	'	53,500,000	'	'	'	'
Business acquisition, closing stock price (in dollars per share)	'	'	'	$23.83	'	'	'	'
Number of markets entered due to acquisition	'	'	'	'	'	'	15	'
Amortization period of acquired intangible asset	'	'	'	'	'	'	'10 years	'
Business acquisition, total transaction expenses	'	'	'	'	'	9,400,000	'	'
Business acquisition, severance expense	'	'	'	'	'	1,400,000	'	'
Business acquisition, contract termination and other expenses	'	'	'	'	'	$7,900,000	'	'

Securities_Available_for_Sale_2

Securities Available for Sale and Held to Maturity (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available for sale securities [Abstract]	'	'
Amortized cost	$2,349,631	$2,189,005
Gross unrealized gains	32,102	31,979
Gross unrealized (losses)	-17,838	-26,830
Estimated fair value	2,363,895	2,194,154
Held to maturity securities [Abstract]	'	'
Amortized cost	1,169,640	1,168,728
Gross unrealized gains	8,573	3,063
Gross unrealized (losses)	-8,000	-20,958
Estimated fair value	1,170,213	1,150,833
US Treasury Securities [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	0	0
Gross unrealized gains	0	0
Gross unrealized (losses)	0	0
Estimated fair value	0	0
U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	0	0
Gross unrealized gains	0	0
Gross unrealized (losses)	0	0
Estimated fair value	0	0
U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	100,767	100,159
Gross unrealized gains	1,858	0
Gross unrealized (losses)	-55	-1,580
Estimated fair value	102,570	98,579
Obligations of States and Political Subdivisions [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	64,538	65,987
Gross unrealized gains	3,487	2,806
Gross unrealized (losses)	0	-281
Estimated fair value	68,025	68,512
Residential Mortgage Pass Through Securities Guaranteed by GNMA [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	13,368	9,433
Gross unrealized gains	304	142
Gross unrealized (losses)	-15	-72
Estimated fair value	13,657	9,503
Residential Mortgage Pass Through Securities Issued by FNMA and FHLMC [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	11,816	12,724
Gross unrealized gains	245	30
Gross unrealized (losses)	0	-162
Estimated fair value	12,061	12,592
Other Residential Mortgage Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	836,966	837,393
Gross unrealized gains	1,723	0
Gross unrealized (losses)	-6,106	-15,072
Estimated fair value	832,583	822,321
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	142,185	143,032
Gross unrealized gains	956	85
Gross unrealized (losses)	-1,824	-3,791
Estimated fair value	141,317	139,326
Asset-Backed Securities and Structured Financial Products [Member]	'	'
Held to maturity securities [Abstract]	'	'
Amortized cost	0	0
Gross unrealized gains	0	0
Gross unrealized (losses)	0	0
Estimated fair value	0	0
US Treasury Securities [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	100	501
Gross unrealized gains	0	1
Gross unrealized (losses)	0	0
Estimated fair value	100	502
U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	83,354	129,653
Gross unrealized gains	729	1,125
Gross unrealized (losses)	-1,072	-1,485
Estimated fair value	83,011	129,293
U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	30,719	40,681
Gross unrealized gains	100	19
Gross unrealized (losses)	-40	-521
Estimated fair value	30,779	40,179
Obligations of States and Political Subdivisions [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	159,304	165,810
Gross unrealized gains	6,200	6,243
Gross unrealized (losses)	-41	-315
Estimated fair value	165,463	171,738
Residential Mortgage Pass Through Securities Guaranteed by GNMA [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	12,319	14,099
Gross unrealized gains	524	459
Gross unrealized (losses)	-15	-84
Estimated fair value	12,828	14,474
Residential Mortgage Pass Through Securities Issued by FNMA and FHLMC [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	209,455	239,880
Gross unrealized gains	4,086	3,147
Gross unrealized (losses)	-121	-1,909
Estimated fair value	213,420	241,118
Other Residential Mortgage Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	1,606,565	1,300,375
Gross unrealized gains	13,065	12,459
Gross unrealized (losses)	-16,492	-22,093
Estimated fair value	1,603,138	1,290,741
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	215,284	235,317
Gross unrealized gains	6,414	7,278
Gross unrealized (losses)	-57	-423
Estimated fair value	221,641	242,172
Asset-Backed Securities and Structured Financial Products [Member]	'	'
Available for sale securities [Abstract]	'	'
Amortized cost	32,531	62,689
Gross unrealized gains	984	1,248
Gross unrealized (losses)	0	0
Estimated fair value	$33,515	$63,937

Securities_Available_for_Sale_3

Securities Available for Sale and Held to Maturity (1) (Details) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Mar. 31, 2014

Available for Sale [Member]

Available for Sale [Member]

Available for Sale [Member]

Available for Sale [Member]

U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]

U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]

U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]

U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]

Obligations of States and Political Subdivisions [Member]

Obligations of States and Political Subdivisions [Member]

Residential Mortgage Pass Through Securities Guaranteed by GNMA [Member]

Residential Mortgage Pass Through Securities Guaranteed by GNMA [Member]

Residential Mortgage Pass Through Securities Issued by FNMA and FHLMC [Member]

Residential Mortgage Pass Through Securities Issued by FNMA and FHLMC [Member]

Other Residential Mortgage Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]

Other Residential Mortgage Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]

Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]

Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]

Asset-Backed Securities and Structured Financial Products [Member]

Asset-Backed Securities and Structured Financial Products [Member]

Collateralized Loan Obligations [Member]

Estimated Fair Value [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated Fair Value, Less than 12 Months

$2,108,340,000

$930,571,000

'

'

'

'

'

$22,911,000

$68,908,000

$14,333,000

$138,478,000

$2,286,000

$55,963,000

$6,007,000

$14,732,000

$36,918,000

$118,466,000

$820,242,000

$1,534,381,000

$27,874,000

$177,412,000

'

'

'

Estimated Fair Value, 12 Months or More

24,415,000

537,616,000

'

'

'

'

'

31,307,000

0

9,940,000

0

4,710,000

796,000

675,000

161,000

0

0

420,054,000

23,458,000

70,930,000

0

'

'

'

Estimated Fair Value, Total

2,132,755,000

1,468,187,000

'

'

'

'

'

54,218,000

68,908,000

24,273,000

138,478,000

6,996,000

56,759,000

6,682,000

14,893,000

36,918,000

118,466,000

1,240,296,000

1,557,839,000

98,804,000

177,412,000

'

'

'

Gross Unrealized (Losses) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross Unrealized (Losses), Less than 12 Months

-47,362,000

-8,973,000

'

'

'

'

'

-147,000

-1,485,000

-55,000

-2,101,000

-7,000

-586,000

-25,000

-155,000

-121,000

-2,071,000

-8,173,000

-36,750,000

-445,000

-4,214,000

'

'

'

Gross Unrealized (Losses), 12 Months or More

-426,000

-16,865,000

'

'

'

'

'

-925,000

0

-40,000

0

-34,000

-10,000

-5,000

-1,000

0

0

-14,425,000

-415,000

-1,436,000

0

'

'

'

Gross Unrealized (Losses), Total

-47,788,000

-25,838,000

'

'

'

'

'

-1,072,000

-1,485,000

-95,000

-2,101,000

-41,000

-596,000

-30,000

-156,000

-121,000

-2,071,000

-22,598,000

-37,165,000

-1,881,000

-4,214,000

'

'

'

Reclassification of Securities available for sale to securities held to maturity

1,099,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net unrealized holding loss on AFS Securities at date of transfer

46,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net unrealized holding loss on AFS Securities, net of tax at date of transfer

28,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net unamortized, unrealized loss on transfer of securities

'

41,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net unamortized, unrealized loss on transfer of securities, net of tax

'

25,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sale of collateralized loan obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,900,000

Net gain on sale of collateralized loan obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

389,000

Gain (Loss) on Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other-than-temporary impairments

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gains (losses) on Investments [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from calls and sales of securities

'

'

'

30,540,000

0

56,815,000

64,778,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross realized gains

'

'

'

67,000

0

456,000

394,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross realized losses

'

'

'

-156,000

0

-156,000

-16,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities Available for Sale, Amortized Cost [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due in one year or less

'

15,979,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after one year through five years

'

119,935,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after five years through ten years

'

83,488,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after ten years

'

86,606,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total amortized cost, before mortgage-backed securities

'

306,008,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage-backed securities

'

2,043,623,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total, securities available for sale, amortized cost

'

2,349,631,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities Available for Sale, Estimated Fair Value [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due in one year or less

'

16,132,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after one year through five years

'

124,331,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after five years through ten years

'

86,120,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after ten years

'

86,285,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total, estimated fair value, before mortgage-backed securities

'

312,868,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage-backed securities

'

2,051,027,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available for sale

2,194,154,000

2,363,895,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities Held to Maturity, Amortized Cost [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due in one year or less

'

3,194,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after one year through five years

'

11,661,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after five years through ten years

'

134,637,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after ten years

'

15,813,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total, amortized cost, before mortgage-backed securities

'

165,305,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage-backed securities

'

1,004,335,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amortized cost

1,168,728,000

1,169,640,000

'

'

'

'

'

0

0

100,767,000

100,159,000

64,538,000

65,987,000

13,368,000

9,433,000

11,816,000

12,724,000

836,966,000

837,393,000

142,185,000

143,032,000

0

0

'

Securities Held to Maturity, Estimated Fair Value [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due in one year or less

'

3,220,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after one year through five years

'

12,394,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after five years through ten years

'

138,486,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Due after ten years

'

16,495,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total, estimated fair value, before mortgage-backed securities

'

170,595,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mortgage-backed securities

'

999,618,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total, securities held to maturity, estimated fair value

$1,150,833,000

$1,170,213,000

'

'

'

'

'

$0

$0

$102,570,000

$98,579,000

$68,025,000

$68,512,000

$13,657,000

$9,503,000

$12,061,000

$12,592,000

$832,583,000

$822,321,000

$141,317,000

$139,326,000

$0

$0

'

Loans_Held_for_Investment_LHFI2

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loan Portfolio [Abstract]	'	'
Total LHFI	$6,333,651	$5,798,881
Less Allowance For Loan Losses, LHFI	70,134	66,448
Net LHFI	6,263,517	5,732,433
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	88,314	65,238
LHFI, Collectively Evaluated For Impairment	6,245,337	5,733,643
Total LHFI	6,333,651	5,798,881
Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	580,794	596,889
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	20,286	13,327
LHFI, Collectively Evaluated For Impairment	560,508	583,562
Total LHFI	580,794	596,889
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	1,625,480	1,485,564
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	27,017	21,603
LHFI, Collectively Evaluated For Impairment	1,598,463	1,463,961
Total LHFI	1,625,480	1,485,564
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	1,560,901	1,415,139
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	23,885	21,809
LHFI, Collectively Evaluated For Impairment	1,537,016	1,393,330
Total LHFI	1,560,901	1,415,139
Loans Secured by Real Estate [Member] | Other Real Estate Properties [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	239,819	189,362
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	1,203	1,327
LHFI, Collectively Evaluated For Impairment	238,616	188,035
Total LHFI	239,819	189,362
Commercial and Industrial Loans [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	1,246,753	1,157,614
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	15,178	6,286
LHFI, Collectively Evaluated For Impairment	1,231,575	1,151,328
Total LHFI	1,246,753	1,157,614
Consumer Loans [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	168,813	165,308
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	160	151
LHFI, Collectively Evaluated For Impairment	168,653	165,157
Total LHFI	168,813	165,308
Other Loans [Member]	'	'
Loan Portfolio [Abstract]	'	'
Total LHFI	911,091	789,005
Loans and Leases Receivable, Other Information [Abstract]	'	'
LHFI, Individually Evaluated For Impairment	585	735
LHFI, Collectively Evaluated For Impairment	910,506	788,270
Total LHFI	$911,091	$789,005

Loans_Held_for_Investment_LHFI3

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (1) (Details) (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Region
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	$105,480,000	'	$86,982,000
Total LHFI With No Related Allowance Recorded	27,585,000	'	25,643,000
Total LHFI With an Allowance Recorded	60,729,000	'	39,595,000
Total Carrying Amount	88,314,000	'	65,238,000
Related Allowance	10,725,000	'	5,181,000
Average Recorded Investment	76,777,000	'	73,800,000
Maximum concentration of loan as a percentage of total LHFI (in hundredths)	10.00%	'	'
Key market regions	5	'	'
Carrying amounts of nonaccrual LHFI considered for impairment analysis	88,300,000	'	65,200,000
Minimum loan amount for loan to be individually assessed for impairment	500,000	'	'
Nonaccrual financing receivable, specifically evaluated for impairment	54,100,000	'	31,600,000
Nonaccrual financing receivable, allowance for credit losses, specifically evaluated for impairment	9,000,000	'	2,200,000
Nonaccrual financing receivable, allowance for credit losses, charge-offs, specifically evaluated for impairment	55,000	2,100,000	'
Nonaccrual financing receivable specifically evaluated for impairment allowance for credit losses provisions	1,600,000	3,500,000	'
Nonaccrual financing receivable, not specifically evaluated for impairment	34,200,000	'	33,700,000
Nonaccrual financing receivable, allowance for credit losses, not specifically evaluated for impairment	1,700,000	'	3,000,000
Classified as Troubled Debt Restructuring LHFI	12,000,000	16,800,000	14,800,000
TDRs comprised of credits with interest only payments	7,900,000	12,600,000	11,100,000
Financing receivable, related allowance	1,400,000	1,700,000	1,600,000
Financing receivable, related charge-offs	62,000	703,000	'
Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	27,271,000	'	24,350,000
Total LHFI With No Related Allowance Recorded	9,491,000	'	9,817,000
Total LHFI With an Allowance Recorded	10,795,000	'	3,510,000
Total Carrying Amount	20,286,000	'	13,327,000
Related Allowance	2,607,000	'	989,000
Average Recorded Investment	16,806,000	'	20,216,000
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	32,478,000	'	26,541,000
Total LHFI With No Related Allowance Recorded	1,758,000	'	3,095,000
Total LHFI With an Allowance Recorded	25,259,000	'	18,508,000
Total Carrying Amount	27,017,000	'	21,603,000
Related Allowance	431,000	'	191,000
Average Recorded Investment	24,310,000	'	24,359,000
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	26,702,000	'	24,879,000
Total LHFI With No Related Allowance Recorded	14,420,000	'	10,225,000
Total LHFI With an Allowance Recorded	9,465,000	'	11,584,000
Total Carrying Amount	23,885,000	'	21,809,000
Related Allowance	2,163,000	'	2,307,000
Average Recorded Investment	22,847,000	'	20,049,000
Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	1,468,000	'	1,375,000
Total LHFI With No Related Allowance Recorded	0	'	0
Total LHFI With an Allowance Recorded	1,203,000	'	1,327,000
Total Carrying Amount	1,203,000	'	1,327,000
Related Allowance	57,000	'	122,000
Average Recorded Investment	1,265,000	'	2,641,000
Commercial and Industrial Loans [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	16,624,000	'	8,702,000
Total LHFI With No Related Allowance Recorded	1,916,000	'	2,506,000
Total LHFI With an Allowance Recorded	13,262,000	'	3,780,000
Total Carrying Amount	15,178,000	'	6,286,000
Related Allowance	5,203,000	'	1,253,000
Average Recorded Investment	10,732,000	'	5,513,000
Consumer Loans [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	239,000	'	286,000
Total LHFI With No Related Allowance Recorded	0	'	0
Total LHFI With an Allowance Recorded	160,000	'	151,000
Total Carrying Amount	160,000	'	151,000
Related Allowance	1,000	'	2,000
Average Recorded Investment	156,000	'	255,000
Other Loans [Member]	'	'	'
Loan and Lease Receivables, Impaired [Abstract]	'	'	'
Unpaid Principal Balance	698,000	'	849,000
Total LHFI With No Related Allowance Recorded	0	'	0
Total LHFI With an Allowance Recorded	585,000	'	735,000
Total Carrying Amount	585,000	'	735,000
Related Allowance	263,000	'	317,000
Average Recorded Investment	$661,000	'	$767,000

Loans_Held_for_Investment_LHFI4

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (2) (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	Contract	Contract	Contract	Contract
Troubled Debt Restructurings [Member]	'	'	'	'
Troubled Debt Restructurings [Abstract]	'	'	'	'
Number of Contracts	'	'	16	10
Pre-Modification Outstanding Recorded Investment	'	'	$1,172	$4,798
Post-Modification Outstanding Recorded Investment	'	'	1,158	4,737
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'	'	'
Troubled Debt Restructurings [Abstract]	'	'	'	'
Number of Contracts	2	1	16	6
Pre-Modification Outstanding Recorded Investment	191	32	1,172	412
Post-Modification Outstanding Recorded Investment	191	32	1,158	358
Troubled Debt Restructurings [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'	'	'
Troubled Debt Restructurings [Abstract]	'	'	'	'
Number of Contracts	'	'	0	1
Pre-Modification Outstanding Recorded Investment	'	'	0	952
Post-Modification Outstanding Recorded Investment	'	'	0	952
Troubled Debt Restructurings [Member] | Commercial and Industrial [Member]	'	'	'	'
Troubled Debt Restructurings [Abstract]	'	'	'	'
Number of Contracts	'	'	0	2
Pre-Modification Outstanding Recorded Investment	'	'	0	944
Post-Modification Outstanding Recorded Investment	'	'	0	937
Troubled Debt Restructurings [Member] | Other Loans [Member]	'	'	'	'
Troubled Debt Restructurings [Abstract]	'	'	'	'
Number of Contracts	'	'	0	1
Pre-Modification Outstanding Recorded Investment	'	'	0	2,490
Post-Modification Outstanding Recorded Investment	'	'	0	2,490
Troubled Debt Restructurings that Subsequently Defaulted [Member]	'	'	'	'
Troubled Debt Restructurings that Subsequently Defaulted [Abstract]	'	'	'	'
Number of Contracts	1	5	1	5
Recorded Investment	106	398	106	398
Troubled Debt Restructurings that Subsequently Defaulted [Member] | Construction Land Development and Other Land [Member]	'	'	'	'
Troubled Debt Restructurings that Subsequently Defaulted [Abstract]	'	'	'	'
Number of Contracts	0	1	0	1
Recorded Investment	0	9	0	9
Troubled Debt Restructurings that Subsequently Defaulted [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'	'	'
Troubled Debt Restructurings that Subsequently Defaulted [Abstract]	'	'	'	'
Number of Contracts	1	4	1	4
Recorded Investment	$106	$389	$106	$389

Loans_Held_for_Investment_LHFI5

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (3) (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Financing Receivable, Modifications [Line Items]	'	'	'
Nonaccrual	$88,314	$65,238	'
Troubled Debt Restructurings [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	1,373	1,320	1,482
Nonaccrual	10,619	13,456	15,360
Total	11,992	14,776	16,842
Troubled Debt Restructurings [Member] | Construction Land Development and Other Land Loans [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	0	0	227
Nonaccrual	4,076	6,247	7,304
Total	4,076	6,247	7,531
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	1,373	1,320	1,255
Nonaccrual	3,940	4,201	4,965
Total	5,313	5,521	6,220
Troubled Debt Restructurings [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	0	0	0
Nonaccrual	1,923	2,292	2,349
Total	1,923	2,292	2,349
Troubled Debt Restructurings [Member] | Other Loans Secured by Real Estate [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	0	0	0
Nonaccrual	156	167	174
Total	156	167	174
Troubled Debt Restructurings [Member] | Commercial and Industrial Loans [Member]	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Accruing	0	0	0
Nonaccrual	524	549	568
Total	$524	$549	$568

Loans_Held_for_Investment_LHFI6

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (4) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
	KeyRatios
	LoanPool
	CreditRiskGrade
Financing Receivable Aging [Abstract]	'	'
Current	$6,213,544	$5,714,900
Nonaccrual	88,314	65,238
Total LHFI	6,333,651	5,798,881
Number of days used as baseline in evaluating collateral documentation exceptions for loan policy	'90 days	'
Loan amount used as baseline in credit quality review for loan policy	100	'
Number of key quality ratios	6	'
Number of individual credit risk grades	10	'
Number of primary commercial loan groups	9	'
Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	559,414	582,639
Nonaccrual	20,286	13,327
Total LHFI	580,794	596,889
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	1,586,040	1,451,528
Nonaccrual	27,017	21,603
Total LHFI	1,625,480	1,485,564
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	1,523,615	1,391,286
Nonaccrual	23,885	21,809
Total LHFI	1,560,901	1,415,139
Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	238,349	188,030
Nonaccrual	1,203	1,327
Total LHFI	239,819	189,362
Consumer Loans [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	166,511	162,843
Nonaccrual	160	151
Total LHFI	168,813	165,308
Other Loans [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	910,397	788,253
Nonaccrual	585	735
Total LHFI	911,091	789,005
Commercial Portfolio Segment [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	4,609,392	4,213,735
Commercial Portfolio Segment [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	4,385,604	3,982,761
Commercial Portfolio Segment [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	49,064	36,313
Commercial Portfolio Segment [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	172,673	190,743
Commercial Portfolio Segment [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	2,051	3,918
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	521,401	545,691
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	482,131	493,380
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,774	4,383
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	37,353	47,610
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	143	318
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	138,883	128,068
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	129,352	119,640
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,692	479
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	7,576	7,839
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	263	110
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,560,001	1,413,692
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,442,787	1,313,470
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	31,921	12,620
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	85,081	87,203
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	212	399
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	237,304	185,942
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	230,604	178,951
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	0	0
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	6,700	6,756
Commercial Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	0	235
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,246,752	1,157,596
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	1,210,480	1,099,429
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	6,007	18,771
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	29,418	37,209
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	847	2,187
Commercial Portfolio Segment [Member] | Consumer Loans [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	198	496
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	198	496
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	0	0
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	0	0
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	0	0
Commercial Portfolio Segment [Member] | Other Loans [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	904,853	782,250
Commercial Portfolio Segment [Member] | Other Loans [Member] | Pass [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	890,052	777,395
Commercial Portfolio Segment [Member] | Other Loans [Member] | Special Mention [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	7,670	60
Commercial Portfolio Segment [Member] | Other Loans [Member] | Substandard [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	6,545	4,126
Commercial Portfolio Segment [Member] | Other Loans [Member] | Doubtful [Member]	'	'
Financing Receivable [Abstract]	'	'
Financing receivable commercial	586	669
Consumer Portfolio Segment [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	1,686,007	1,552,447
Past Due 30-89 Days	11,705	11,095
Past Due 90 Days or More	3,118	3,298
Nonaccrual	23,429	18,306
Subtotal	1,724,259	1,585,146
Total LHFI	6,333,651	5,798,881
Consumer Portfolio Segment [Member] | Other Loans Secured by Real Estate [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Past Due 30-89 Days	0	'
Consumer Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	58,866	50,850
Past Due 30-89 Days	424	131
Past Due 90 Days or More	0	0
Nonaccrual	103	217
Subtotal	59,393	51,198
Total LHFI	580,794	596,889
Consumer Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	1,451,174	1,327,624
Past Due 30-89 Days	9,411	8,937
Past Due 90 Days or More	2,845	2,996
Nonaccrual	23,167	17,939
Subtotal	1,486,597	1,357,496
Total LHFI	1,625,480	1,485,564
Consumer Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	900	1,439
Past Due 30-89 Days	0	8
Past Due 90 Days or More	0	0
Nonaccrual	0	0
Subtotal	900	1,447
Total LHFI	1,560,901	1,415,139
Consumer Portfolio Segment [Member] | Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	2,515	3,418
Past Due 30-89 Days	0	2
Past Due 90 Days or More	0	0
Nonaccrual	0	0
Subtotal	2,515	3,420
Total LHFI	239,819	189,362
Consumer Portfolio Segment [Member] | Commercial and Industrial Loans [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	0	13
Past Due 30-89 Days	0	5
Past Due 90 Days or More	1	0
Nonaccrual	0	0
Subtotal	1	18
Total LHFI	1,246,753	1,157,614
Consumer Portfolio Segment [Member] | Consumer Loans [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	166,314	162,348
Past Due 30-89 Days	1,870	2,012
Past Due 90 Days or More	272	302
Nonaccrual	159	150
Subtotal	168,615	164,812
Total LHFI	168,813	165,308
Consumer Portfolio Segment [Member] | Other Loans [Member]	'	'
Financing Receivable Aging [Abstract]	'	'
Current	6,238	6,755
Past Due 30-89 Days	'	0
Past Due 90 Days or More	0	0
Nonaccrual	0	0
Subtotal	6,238	6,755
Total LHFI	$911,091	$789,005

Loans_Held_for_Investment_LHFI7

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (5) (Details) (USD $)	3 Months Ended	9 Months Ended		12 Months Ended
	Mar. 31, 2013	Sep. 30, 2014		Dec. 31, 2013
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	$20,655,000		$12,606,000
Past Due 60 - 89 Days	'	7,299,000		2,839,000
Past Due 90 Days or More	'	3,839,000	[1]	3,298,000	[1]
Total Past Due	'	31,793,000		18,743,000
Nonaccrual	'	88,314,000		65,238,000
Current Loans	'	6,213,544,000		5,714,900,000
Total LHFI	'	6,333,651,000		5,798,881,000
LHFI past due 90 days or more	'	3,800,000		3,300,000
LHFS past due 90 days or more	'	25,000,000		21,500,000
Percentage of outstanding principal to be repurchased under GNMA optional repurchase program (in hundredths)	'	100.00%		'
Amount of delinquent loans repurchased	57,400,000	'		'
Repurchase gain included in gain on sales of loans	'	'		534,000
Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	466,000		656,000
Past Due 60 - 89 Days	'	360,000		267,000
Past Due 90 Days or More	'	268,000	[1]	0	[1]
Total Past Due	'	1,094,000		923,000
Nonaccrual	'	20,286,000		13,327,000
Current Loans	'	559,414,000		582,639,000
Total LHFI	'	580,794,000		596,889,000
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	6,685,000		7,322,000
Past Due 60 - 89 Days	'	2,893,000		2,115,000
Past Due 90 Days or More	'	2,845,000	[1]	2,996,000	[1]
Total Past Due	'	12,423,000		12,433,000
Nonaccrual	'	27,017,000		21,603,000
Current Loans	'	1,586,040,000		1,451,528,000
Total LHFI	'	1,625,480,000		1,485,564,000
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	9,787,000		1,934,000
Past Due 60 - 89 Days	'	3,614,000		110,000
Past Due 90 Days or More	'	0	[1]	0	[1]
Total Past Due	'	13,401,000		2,044,000
Nonaccrual	'	23,885,000		21,809,000
Current Loans	'	1,523,615,000		1,391,286,000
Total LHFI	'	1,560,901,000		1,415,139,000
Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	202,000		2,000
Past Due 60 - 89 Days	'	65,000		3,000
Past Due 90 Days or More	'	0	[1]	0	[1]
Total Past Due	'	267,000		5,000
Nonaccrual	'	1,203,000		1,327,000
Current Loans	'	238,349,000		188,030,000
Total LHFI	'	239,819,000		189,362,000
Commercial and Industrial Loans [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	1,806,000		809,000
Past Due 60 - 89 Days	'	97,000		198,000
Past Due 90 Days or More	'	454,000	[1]	0	[1]
Total Past Due	'	2,357,000		1,007,000
Nonaccrual	'	15,178,000		6,286,000
Current Loans	'	1,229,218,000		1,150,321,000
Total LHFI	'	1,246,753,000		1,157,614,000
Consumer Loans [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	1,627,000		1,866,000
Past Due 60 - 89 Days	'	243,000		146,000
Past Due 90 Days or More	'	272,000	[1]	302,000	[1]
Total Past Due	'	2,142,000		2,314,000
Nonaccrual	'	160,000		151,000
Current Loans	'	166,511,000		162,843,000
Total LHFI	'	168,813,000		165,308,000
Other Loans [Member]	'	'		'
Financing Receivable, Recorded Investment, Aging [Abstract]	'	'		'
Past Due 30 - 59 Days	'	82,000		17,000
Past Due 60 - 89 Days	'	27,000		0
Past Due 90 Days or More	'	0	[1]	0	[1]
Total Past Due	'	109,000		17,000
Nonaccrual	'	585,000		735,000
Current Loans	'	910,397,000		788,253,000
Total LHFI	'	$911,091,000		$789,005,000
[1]	Past due 90 days or more but still accruing interest.

Loans_Held_for_Investment_LHFI8

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (6) (Details) (USD $)	3 Months Ended			9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
	Loan			Scale
	Market			Loan
	Factor			Market
				Factor
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	$66,448	'	'
Provision for loan losses, LHFI	3,058	'	-3,624	2,604	-11,438	'
Balance at end of period	70,134	'	'	70,134	'	66,448
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Total	70,134	'	'	70,134	'	66,448
Number of loan types for commercial portfolio	9	'	'	9	'	'
Number of unique qualitative factors used to analyze consumer loans	5	'	'	5	'	'
Number of risk rate factors for commercial loans	450	'	'	450	'	'
Minimum score for qualitative risk factor	'	'	'	0	'	'
Maximum score for qualitative risk factor	'	'	'	100	'	'
Additional provision due to revision of methodology	822	1,400	'	'	'	1,600
Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	66,448	78,738	78,738
Loans charged-off	'	'	'	-10,052	-10,173	'
Recoveries	'	'	'	11,134	11,505	'
Net recoveries (charge-offs)	'	'	'	1,082	1,332	'
Provision for loan losses, LHFI	'	'	'	2,604	-11,438	'
Balance at end of period	70,134	'	68,632	70,134	68,632	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	10,725	'	9,706	10,725	9,706	'
Collectively	59,409	'	58,926	59,409	58,926	'
Total	70,134	'	68,632	70,134	68,632	'
Loans Secured by Real Estate [Member] | Construction Land Development and Other Land [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	13,165	21,838	21,838
Loans charged-off	'	'	'	-604	-1,091	'
Recoveries	'	'	'	3,413	2,561	'
Provision for loan losses, LHFI	'	'	'	-6,139	-7,419	'
Balance at end of period	9,835	'	15,889	9,835	15,889	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	2,607	'	957	2,607	957	'
Collectively	7,228	'	14,932	7,228	14,932	'
Total	9,835	'	15,889	9,835	15,889	'
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	9,633	12,957	12,957
Loans charged-off	'	'	'	-2,306	-839	'
Recoveries	'	'	'	861	363	'
Provision for loan losses, LHFI	'	'	'	1,986	-3,723	'
Balance at end of period	10,174	'	8,758	10,174	8,758	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	431	'	260	431	260	'
Collectively	9,743	'	8,498	9,743	8,498	'
Total	10,174	'	8,758	10,174	8,758	'
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	19,672	21,096	21,096
Loans charged-off	'	'	'	-240	-572	'
Recoveries	'	'	'	400	64	'
Provision for loan losses, LHFI	'	'	'	1,099	-1,828	'
Balance at end of period	20,931	'	18,760	20,931	18,760	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	2,163	'	2,733	2,163	2,733	'
Collectively	18,768	'	16,027	18,768	16,027	'
Total	20,931	'	18,760	20,931	18,760	'
Loans Secured by Real Estate [Member] | Other Loans Secured by Real Estate [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	2,080	2,197	2,197
Loans charged-off	'	'	'	-277	-910	'
Recoveries	'	'	'	0	80	'
Provision for loan losses, LHFI	'	'	'	571	497	'
Balance at end of period	2,374	'	1,864	2,374	1,864	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	57	'	37	57	37	'
Collectively	2,317	'	1,827	2,317	1,827	'
Total	2,374	'	1,864	2,374	1,864	'
Commercial and Industrial Loans [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	15,522	14,319	14,319
Loans charged-off	'	'	'	-1,787	-1,225	'
Recoveries	'	'	'	1,321	2,190	'
Provision for loan losses, LHFI	'	'	'	4,490	2,004	'
Balance at end of period	19,546	'	17,288	19,546	17,288	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	5,203	'	5,393	5,203	5,393	'
Collectively	14,343	'	11,895	14,343	11,895	'
Total	19,546	'	17,288	19,546	17,288	'
Consumer Loans [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	2,405	3,087	3,087
Loans charged-off	'	'	'	-1,304	-1,789	'
Recoveries	'	'	'	2,760	3,561	'
Provision for loan losses, LHFI	'	'	'	-1,631	-2,256	'
Balance at end of period	2,230	'	2,603	2,230	2,603	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	1	'	2	1	2	'
Collectively	2,229	'	2,601	2,229	2,601	'
Total	2,230	'	2,603	2,230	2,603	'
Other Loans [Member] | Allowance for Loan Loses, LHFI [Member]	'	'	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'	'	'
Balance at beginning of period	'	'	'	3,971	3,244	3,244
Loans charged-off	'	'	'	-3,534	-3,747	'
Recoveries	'	'	'	2,379	2,686	'
Provision for loan losses, LHFI	'	'	'	2,228	1,287	'
Balance at end of period	5,044	'	3,470	5,044	3,470	'
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]	'	'	'	'	'	'
Individually	263	'	324	263	324	'
Collectively	4,781	'	3,146	4,781	3,146	'
Total	$5,044	'	$3,470	$5,044	$3,470	'

Acquired_Loans_Details

Acquired Loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	$564,542	$769,990
Less allowance for loan losses, acquired loans	11,136	7,249
Net acquired loans	553,406	762,741
Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	27,607	34,216
Less allowance for loan losses, acquired loans	813	2,387
Net acquired loans	26,794	31,829
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	64,808	98,928
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	1,721	2,363
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	120,366	157,914
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	14,114	16,416
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	214,806	287,136
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	8,270	10,945
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	28,036	33,948
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	2,949	2,644
Commercial and Industrial Loans [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	103,185	149,495
Commercial and Industrial Loans [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	327	394
Consumer Loans Financing Receivable [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	11,236	18,428
Consumer Loans Financing Receivable [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	0	119
Other Loans Financing Receivable [Member] | Noncovered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	22,105	24,141
Other Loans Financing Receivable [Member] | Covered [Member]	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'
Acquired loans	$226	$1,335

Acquired_Loans_Part_1_Details

Acquired Loans Part 1 (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Feb. 15, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
At acquisition date [Abstract]	'	'	'	'	'
Contractually required principal and interest	'	'	'	$1,256,669	'
Nonaccretable difference	'	'	'	201,324	'
Cash flows expected to be collected	'	'	'	1,055,345	'
Accretable yield	-82,879	-109,006	-110,455	98,394	-26,383
FASB ASC Topic 310-20 discount	'	'	'	12,716	'
Fair value of loans at acquisition	'	'	'	$944,235	'

Acquired_Loans_Part_2_Details

Acquired Loans Part 2 (Details) (USD $)

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Acquired Impaired [Member]

Acquired Impaired [Member]

Acquired Impaired [Member]

Acquired Impaired [Member]

Acquired Not ASC 310-30 [Member]

Acquired Not ASC 310-30 [Member]

Acquired Not ASC 310-30 [Member]

Acquired Not ASC 310-30 [Member]

Covered Loans [Member]

Covered Loans [Member]

Noncovered Loans [Member]

Noncovered Loans [Member]

Covered Loans [Member]

Covered Loans [Member]

Noncovered Loans [Member]

Noncovered Loans [Member]

Carrying value of acquired loans [Abstract]

'

'

'

'

'

'

'

'

'

'

Net carrying value, beginning

'

'

$30,166

$45,391

$639,656

$72,942

$1,663

[1]

$2,460

[1]

$123,085

[1]

$6,696

[1]

Loans acquired

'

'

'

0

[2]

'

790,335

[2]

'

0

[1],[2]

'

153,900

[1],[2]

Accretion to interest income

38,433

28,927

3,010

5,150

35,423

35,538

-1

[1]

159

[1]

1,442

[1]

2,628

[1]

Payments received, net

'

'

-7,831

-18,976

-185,880

-229,618

126

[1]

-819

[1]

-37,437

[1]

-39,281

[1]

Other

'

'

-1,429

-3,202

-26,284

-24,177

-484

[1]

-137

[1]

-486

[1]

-858

[1]

Less change in allowance for loan losses, acquired loans

'

'

1,129

1,803

4,400

-5,364

445

[1]

0

[1]

-513

[1]

0

[1]

Net carrying value, ending

'

'

$25,045

$30,166

$467,315

$639,656

$1,749

[1]

$1,663

[1]

$86,091

[1]

$123,085

[1]

[1]

"Acquired Not ASC 310-30" loans consist of revolving credit agreements and commercial leases that are not in scope for FASB ASC Topic 310-30.

[2]

Adjusted fair value of loans acquired from BancTrust on February 15, 2013.

Acquired_Loans_Part_3_Details

Acquired Loans Part 3 (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Feb. 15, 2013
Change in accretable difference on acquired loans [Abstract]	'		'		'
Accretable yield at beginning of period	($109,006)		($26,383)		$98,394
Additions due to acquisition	0	[1]	-98,394	[1]	'
Accretion to interest income	38,433		28,927		'
Disposals	14,520		11,167		'
Reclassification to / (from) nonaccretable difference	-26,826	[2]	-25,772	[2]	'
Accretable yield at end of period	($82,879)		($110,455)		$98,394
[1]	Accretable yield on loans acquired from BancTrust on February 15, 2013, adjusted for measurement period adjustments.
[2]	Reclassifications from nonaccretable difference are due to lower loss expectations and improvements in expected cash flows.

Acquired_Loans_Part_4_Details

Acquired Loans Part 4 (Details) (USD $)	9 Months Ended		12 Months Ended			9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2013	Feb. 15, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
				BancTrust Financial Group, Inc. [Member]	BancTrust Financial Group, Inc. [Member]	Covered Loans [Member]	Covered Loans [Member]	Noncovered Loans [Member]	Noncovered Loans [Member]
Allowance for loan loss [Abstract]	'	'	'	'	'	'	'	'	'
Balance, beginning	$9,636,000	$6,075,000	$6,075,000	'	'	$2,387,000	$4,190,000	$7,249,000	$1,885,000
Provision for loan losses, acquired loans	4,992,000	1,870,000	'	'	'	-611,000	-1,168,000	5,603,000	3,038,000
Loans charged-off	-4,227,000	-3,691,000	'	'	'	-917,000	-663,000	-3,310,000	-3,028,000
Recoveries	1,548,000	1,079,000	'	'	'	-46,000	-33,000	1,594,000	1,112,000
Net charge-offs	-2,679,000	-2,612,000	'	'	'	-963,000	-696,000	-1,716,000	-1,916,000
Balance, ending	11,949,000	5,333,000	9,636,000	'	'	813,000	2,326,000	11,136,000	3,007,000
Revolving credit agreements acquired	'	'	'	'	153,900,000	'	'	'	'
Nonaccrual loans not accounted for under FASB ASC Topic 310 30	988,000	'	2,400,000	'	'	'	'	'	'
Decrease in acquired non covered loans as measurement period adjustment	'	'	$6,800,000	$6,800,000	'	'	'	'	'

Acquired_Loans_Part_5_Details

Acquired Loans Part 5 (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Acquired Loans, Aging [Abstract]	'		'
Current	$533,261		$718,638
Past Due Greater Than 90 Days	47,711	[1]	63,444	[1]
Nonaccrual	988	[2]	2,353	[2]
Total acquired loans	592,149		804,206
Percentage of risk of losses incurred on acquired covered loans (in hundredths)	20.00%		20.00%
Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	22,934		27,006
Past Due Greater Than 90 Days	2,046	[1]	3,136	[1]
Nonaccrual	78	[2]	486	[2]
Total acquired loans	27,607		34,216
Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	510,327		691,632
Past Due Greater Than 90 Days	45,665	[1]	60,308	[1]
Nonaccrual	910	[2]	1,867	[2]
Total acquired loans	564,542		769,990
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	1,326		1,278
Past Due Greater Than 90 Days	395	[1]	553	[1]
Nonaccrual	0	[2]	445	[2]
Total acquired loans	1,721		2,363
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	38,548		65,001
Past Due Greater Than 90 Days	24,675	[1]	31,744	[1]
Nonaccrual	201	[2]	67	[2]
Total acquired loans	64,808		98,928
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	12,878		14,401
Past Due Greater Than 90 Days	484	[1]	1,142	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	14,114		16,416
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	111,898		145,142
Past Due Greater Than 90 Days	5,143	[1]	7,589	[1]
Nonaccrual	214	[2]	116	[2]
Total acquired loans	120,366		157,914
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	6,736		8,247
Past Due Greater Than 90 Days	0	[1]	793	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	8,270		10,945
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	199,042		263,276
Past Due Greater Than 90 Days	13,520	[1]	15,421	[1]
Nonaccrual	0	[2]	461	[2]
Total acquired loans	214,806		287,136
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	1,570		1,932
Past Due Greater Than 90 Days	1,126	[1]	2	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	2,949		2,644
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	27,289		31,953
Past Due Greater Than 90 Days	747	[1]	1,922	[1]
Nonaccrual	0	[2]	33	[2]
Total acquired loans	28,036		33,948
Commercial and Industrial Loans [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	198		340
Past Due Greater Than 90 Days	41	[1]	0	[1]
Nonaccrual	78	[2]	41	[2]
Total acquired loans	327		394
Commercial and Industrial Loans [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	100,469		144,195
Past Due Greater Than 90 Days	1,512	[1]	3,387	[1]
Nonaccrual	495	[2]	1,170	[2]
Total acquired loans	103,185		149,495
Consumer Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0		119
Past Due Greater Than 90 Days	0	[1]	0	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	0		119
Consumer Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	11,003		18,097
Past Due Greater Than 90 Days	68	[1]	92	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	11,236		18,428
Other Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	226		689
Past Due Greater Than 90 Days	0	[1]	646	[1]
Nonaccrual	0	[2]	0	[2]
Total acquired loans	226		1,335
Other Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	22,078		23,968
Past Due Greater Than 90 Days	0	[1]	153	[1]
Nonaccrual	0	[2]	20	[2]
Total acquired loans	22,105		24,141
Commercial Portfolio Segment [Member] | Pass [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	345,884		433,015
Commercial Portfolio Segment [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	7,604	[3]	8,660	[3]
Commercial Portfolio Segment [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	338,280		424,355
Commercial Portfolio Segment [Member] | Special Mention [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	6,546		18,902
Commercial Portfolio Segment [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	618	[3]	701	[3]
Commercial Portfolio Segment [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	5,928		18,201
Commercial Portfolio Segment [Member] | Substandard [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	117,753		186,787
Commercial Portfolio Segment [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	6,176	[3]	8,890	[3]
Commercial Portfolio Segment [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	111,577		177,897
Commercial Portfolio Segment [Member] | Doubtful [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	13,826		22,494
Commercial Portfolio Segment [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,172	[3]	1,419	[3]
Commercial Portfolio Segment [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	12,654		21,075
Commercial Portfolio Segment [Member] | Commercial Subtotal [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	484,009		661,198
Commercial Portfolio Segment [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	15,570	[3]	19,670	[3]
Commercial Portfolio Segment [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	468,439		641,528
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	140	[3]	228	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	24,028		39,075
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	300		2,506
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,039	[3]	1,126	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	30,121		42,486
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	395	[3]	771	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	6,295		8,445
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,574	[3]	2,125	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	60,744		92,512
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,644	[3]	1,629	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	28,487		33,810
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	248	[3]	430	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	855		2,983
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,190	[3]	1,798	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	9,856		17,422
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	399		538
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	3,082	[3]	3,857	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	39,597		54,753
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	4,693	[3]	5,446	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	164,492		184,594
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	230	[3]	109	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	3,818		9,027
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	3,077	[3]	4,723	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	44,726		88,952
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	1,770		4,563
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	8,000	[3]	10,278	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	214,806		287,136
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	742	[3]	832	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	22,882		28,156
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	115	[3]	134	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	94		1,437
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	727	[3]	717	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	4,769		4,071
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	777	[3]	2	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	284		184
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	2,361	[3]	1,685	[3]
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	28,029		33,848
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	159	[3]	254	[3]
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	78,663		116,818
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	25	[3]	28	[3]
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	861		2,248
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	143	[3]	112	[3]
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	19,755		24,084
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	3,906		6,039
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	327	[3]	394	[3]
Commercial Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	103,185		149,189
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	4		21
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0		0
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0		0
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0		0
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	4		21
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Pass [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	226	[3]	271	[3]
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Pass [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	19,724		21,881
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Special Mention [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	0	[3]
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Special Mention [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0		0
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Substandard [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	414	[3]
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Substandard [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	2,350		882
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Doubtful [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0	[3]	646	[3]
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Doubtful [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	0		1,306
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Commercial Subtotal [Member] | Covered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	226	[3]	1,331	[3]
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Commercial Subtotal [Member] | Noncovered [Member]	'		'
Acquired Loans, Commercial Loans [Abstract]	'		'
Acquired loans	22,074		24,069
Consumer Portfolio Segment [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	101,245		132,901
Past Due 30-89 Days	2,928		4,793
Past Due Greater Than 90 Days	3,827		5,205
Nonaccrual	140		109
Subtotal	108,140		143,008
Total acquired loans	592,149		804,206
Consumer Portfolio Segment [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	11,104	[3]	12,547	[3]
Past Due 30-89 Days	546	[3]	847	[3]
Past Due Greater Than 90 Days	387	[3]	1,152	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	12,037	[3]	14,546	[3]
Total acquired loans	27,607	[3]	34,216	[3]
Consumer Portfolio Segment [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	90,141		120,354
Past Due 30-89 Days	2,382		3,946
Past Due Greater Than 90 Days	3,440		4,053
Nonaccrual	140		109
Subtotal	96,103		128,462
Total acquired loans	564,542		769,990
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	147	[3]	133	[3]
Past Due 30-89 Days	0	[3]	77	[3]
Past Due Greater Than 90 Days	0	[3]	28	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	147	[3]	238	[3]
Total acquired loans	1,721	[3]	2,363	[3]
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	3,695		5,813
Past Due 30-89 Days	58		108
Past Due Greater Than 90 Days	311		495
Nonaccrual	0		0
Subtotal	4,064		6,416
Total acquired loans	64,808		98,928
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	10,133	[3]	11,179	[3]
Past Due 30-89 Days	546	[3]	428	[3]
Past Due Greater Than 90 Days	353	[3]	952	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	11,032	[3]	12,559	[3]
Total acquired loans	14,114	[3]	16,416	[3]
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	75,408		95,987
Past Due 30-89 Days	2,160		3,599
Past Due Greater Than 90 Days	3,061		3,466
Nonaccrual	140		109
Subtotal	80,769		103,161
Total acquired loans	120,366		157,914
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	270	[3]	495	[3]
Past Due 30-89 Days	0	[3]	0	[3]
Past Due Greater Than 90 Days	0	[3]	172	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	270	[3]	667	[3]
Total acquired loans	8,270	[3]	10,945	[3]
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0		0
Past Due 30-89 Days	0		0
Past Due Greater Than 90 Days	0		0
Nonaccrual	0		0
Subtotal	0		0
Total acquired loans	214,806		287,136
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	554	[3]	617	[3]
Past Due 30-89 Days	0	[3]	342	[3]
Past Due Greater Than 90 Days	34	[3]	0	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	588	[3]	959	[3]
Total acquired loans	2,949	[3]	2,644	[3]
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	7		100
Past Due 30-89 Days	0		0
Past Due Greater Than 90 Days	0		0
Nonaccrual	0		0
Subtotal	7		100
Total acquired loans	28,036		33,948
Consumer Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0	[3]	0	[3]
Past Due 30-89 Days	0	[3]	0	[3]
Past Due Greater Than 90 Days	0	[3]	0	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	0	[3]	0	[3]
Total acquired loans	327	[3]	394	[3]
Consumer Portfolio Segment [Member] | Commercial and Industrial Loans [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0		306
Past Due 30-89 Days	0		0
Past Due Greater Than 90 Days	0		0
Nonaccrual	0		0
Subtotal	0		306
Total acquired loans	103,185		149,495
Consumer Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0	[3]	119	[3]
Past Due 30-89 Days	0	[3]	0	[3]
Past Due Greater Than 90 Days	0	[3]	0	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	0	[3]	119	[3]
Total acquired loans	0	[3]	119	[3]
Consumer Portfolio Segment [Member] | Consumer Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	11,000		18,076
Past Due 30-89 Days	164		239
Past Due Greater Than 90 Days	68		92
Nonaccrual	0		0
Subtotal	11,232		18,407
Total acquired loans	11,236		18,428
Consumer Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	0	[3]	4	[3]
Past Due 30-89 Days	0	[3]	0	[3]
Past Due Greater Than 90 Days	0	[3]	0	[3]
Nonaccrual	0	[3]	0	[3]
Subtotal	0	[3]	4	[3]
Total acquired loans	226	[3]	1,335	[3]
Consumer Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Current	31		72
Past Due 30-89 Days	0		0
Past Due Greater Than 90 Days	0		0
Nonaccrual	0		0
Subtotal	31		72
Total acquired loans	$22,105		$24,141
[1]	Past due 90 days or more but still accruing interest.
[2]	Acquired loans not accounted for under FASB ASC Topic 310-30.
[3]	Total dollar balances are presented in this table; however, these loans are covered by the loss-share agreement with the FDIC. TNB is at risk for only 20% of the losses incurred on these loans.

Acquired_Loans_Part_6_Details

Acquired Loans Part 6 (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013
In Thousands, unless otherwise specified
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	$7,429		$12,600
Past Due 60 - 89 Days	2,760		7,171
Past Due Greater Than 90 Days	47,711	[1]	63,444	[1]
Total Past Due	57,900		83,215
Nonaccrual	988	[2]	2,353	[2]
Current Loans	533,261		718,638
Acquired loans	592,149		804,206
Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	2,545		1,429
Past Due 60 - 89 Days	4		2,159
Past Due Greater Than 90 Days	2,046	[1]	3,136	[1]
Total Past Due	4,595		6,724
Nonaccrual	78	[2]	486	[2]
Current Loans	22,934		27,006
Acquired loans	27,607		34,216
Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	4,884		11,171
Past Due 60 - 89 Days	2,756		5,012
Past Due Greater Than 90 Days	45,665	[1]	60,308	[1]
Total Past Due	53,305		76,491
Nonaccrual	910	[2]	1,867	[2]
Current Loans	510,327		691,632
Acquired loans	564,542		769,990
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	0		87
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	395	[1]	553	[1]
Total Past Due	395		640
Nonaccrual	0	[2]	445	[2]
Current Loans	1,326		1,278
Acquired loans	1,721		2,363
Real Estate Secured Financing Receivable [Member] | Construction Land Development and Other Land [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	176		1,648
Past Due 60 - 89 Days	1,208		468
Past Due Greater Than 90 Days	24,675	[1]	31,744	[1]
Total Past Due	26,059		33,860
Nonaccrual	201	[2]	67	[2]
Current Loans	38,548		65,001
Acquired loans	64,808		98,928
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	748		515
Past Due 60 - 89 Days	4		358
Past Due Greater Than 90 Days	484	[1]	1,142	[1]
Total Past Due	1,236		2,015
Nonaccrual	0	[2]	0	[2]
Current Loans	12,878		14,401
Acquired loans	14,114		16,416
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	2,211		3,901
Past Due 60 - 89 Days	900		1,166
Past Due Greater Than 90 Days	5,143	[1]	7,589	[1]
Total Past Due	8,254		12,656
Nonaccrual	214	[2]	116	[2]
Current Loans	111,898		145,142
Acquired loans	120,366		157,914
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	1,534		243
Past Due 60 - 89 Days	0		1,662
Past Due Greater Than 90 Days	0	[1]	793	[1]
Total Past Due	1,534		2,698
Nonaccrual	0	[2]	0	[2]
Current Loans	6,736		8,247
Acquired loans	8,270		10,945
Real Estate Secured Financing Receivable [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	1,984		4,851
Past Due 60 - 89 Days	260		3,127
Past Due Greater Than 90 Days	13,520	[1]	15,421	[1]
Total Past Due	15,764		23,399
Nonaccrual	0	[2]	461	[2]
Current Loans	199,042		263,276
Acquired loans	214,806		287,136
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	253		571
Past Due 60 - 89 Days	0		139
Past Due Greater Than 90 Days	1,126	[1]	2	[1]
Total Past Due	1,379		712
Nonaccrual	0	[2]	0	[2]
Current Loans	1,570		1,932
Acquired loans	2,949		2,644
Real Estate Secured Financing Receivable [Member] | Other Loans Secured by Real Estate [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	0		40
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	747	[1]	1,922	[1]
Total Past Due	747		1,962
Nonaccrual	0	[2]	33	[2]
Current Loans	27,289		31,953
Acquired loans	28,036		33,948
Commercial And Industrial Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	10		13
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	41	[1]	0	[1]
Total Past Due	51		13
Nonaccrual	78	[2]	41	[2]
Current Loans	198		340
Acquired loans	327		394
Commercial And Industrial Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	381		526
Past Due 60 - 89 Days	328		217
Past Due Greater Than 90 Days	1,512	[1]	3,387	[1]
Total Past Due	2,221		4,130
Nonaccrual	495	[2]	1,170	[2]
Current Loans	100,469		144,195
Acquired loans	103,185		149,495
Consumer Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	0		0
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	0	[1]	0	[1]
Total Past Due	0		0
Nonaccrual	0	[2]	0	[2]
Current Loans	0		119
Acquired loans	0		119
Consumer Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	105		205
Past Due 60 - 89 Days	60		34
Past Due Greater Than 90 Days	68	[1]	92	[1]
Total Past Due	233		331
Nonaccrual	0	[2]	0	[2]
Current Loans	11,003		18,097
Acquired loans	11,236		18,428
Other Loans Financing Receivable [Member] | Covered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	0		0
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	0	[1]	646	[1]
Total Past Due	0		646
Nonaccrual	0	[2]	0	[2]
Current Loans	226		689
Acquired loans	226		1,335
Other Loans Financing Receivable [Member] | Noncovered [Member]	'		'
Acquired Loans, Aging [Abstract]	'		'
Past Due 30 - 59 Days	27		0
Past Due 60 - 89 Days	0		0
Past Due Greater Than 90 Days	0	[1]	153	[1]
Total Past Due	27		153
Nonaccrual	0	[2]	20	[2]
Current Loans	22,078		23,968
Acquired loans	$22,105		$24,141
[1]	Past due 90 days or more but still accruing interest.
[2]	Acquired loans not accounted for under FASB ASC Topic 310-30.

Mortgage_Banking_Details

Mortgage Banking (Details) (USD $)	1 Months Ended	9 Months Ended
	Nov. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Mortgage Banking [Abstract]	'	'	'	'
Period of put back response	'	'60 days	'	'
Residential mortgage loans sold	'	$671,200,000	$1,132,000,000	'
Gains on sales of residential mortgage loans, before tax	'	7,900,000	24,200,000	'
Mortgage loans serviced for others	'	5,586,000,000	'	5,461,000,000
Mortgage servicing rights [Abstract]	'	'	'	'
Balance at beginning of period	'	67,834,000	47,341,000	'
Origination of servicing assets	'	8,884,000	15,551,000	'
Change in fair value [Abstract]	'	'	'	'
Due to market changes	'	-3,060,000	7,881,000	'
Due to runoff	'	-6,568,000	-7,623,000	'
Balance at end of period	'	67,090,000	63,150,000	'
Mortgage Loans on Real Estate [Line Items]	'	'	'	'
Total mortgage loans sold and serviced for others	'	5,585,773,000	'	5,461,676,000
Schedule of changes in the reserve for mortgage loan [Abstract]	'	'	'	'
Balance at beginning of period	'	1,050,000	7,800,000	'
Provision for putback expenses	'	450,000	1,050,000	'
Losses	'	-403,000	-3,867,000	'
Balance at end of period	'	1,097,000	4,983,000	'
Mortgage loan servicing representation and warranty expenses	'	450,000	1,000,000	'
Payments to FNMA for repurchase obligations	3,600,000	'	'	'
Federal National Mortgage Association [Member]	'	'	'	'
Mortgage Loans on Real Estate [Line Items]	'	'	'	'
Total mortgage loans sold and serviced for others	'	3,556,490,000	'	3,499,659,000
Government National Mortgage Association [Member]	'	'	'	'
Mortgage Loans on Real Estate [Line Items]	'	'	'	'
Total mortgage loans sold and serviced for others	'	1,916,010,000	'	1,830,420,000
Federal Home Loan Mortgage Corporation [Member]	'	'	'	'
Mortgage Loans on Real Estate [Line Items]	'	'	'	'
Total mortgage loans sold and serviced for others	'	83,250,000	'	92,599,000
Other [Member]	'	'	'	'
Mortgage Loans on Real Estate [Line Items]	'	'	'	'
Total mortgage loans sold and serviced for others	'	$30,023,000	'	$38,998,000

Other_Real_Estate_and_Covered_2

Other Real Estate and Covered Other Real Estate (Details) (USD $)

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Construction Land Development and Other Land [Member]

Construction Land Development and Other Land [Member]

1-4 Family Residential Properties [Member]

1-4 Family Residential Properties [Member]

Nonfarm, Nonresidential Properties [Member]

Nonfarm, Nonresidential Properties [Member]

BancTrust Financial Group, Inc. [Member]

Construction, Land Development And Other Land Properties [Member]

Construction, Land Development And Other Land Properties [Member]

1 - 4 Family Residential Properties [Member]

1 - 4 Family Residential Properties [Member]

Nonfarm, Nonresidential Properties [Member]

Nonfarm, Nonresidential Properties [Member]

Other Real Estate Properties [Member]

Other Real Estate Properties [Member]

Other real estate, excluding covered other real estate [Rollforward]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at beginning of period

$106,539,000

$78,189,000

'

'

'

'

'

'

'

$63,127,000

$65,273,000

$9,998,000

$14,696,000

$22,251,000

$26,433,000

$1,661,000

$137,000

Additions

29,972,000

[1]

73,890,000

[1]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Disposals

-34,641,000

-29,605,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Write-downs

-4,833,000

-6,145,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at end of period

97,037,000

116,329,000

'

'

'

'

'

'

'

63,127,000

65,273,000

9,998,000

14,696,000

22,251,000

26,433,000

1,661,000

137,000

Gain (Loss), net on the sale of other real estate included in ORE/Foreclosure expense

2,847,000

-110,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other real estate, excluding covered other real estate [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total other real estate, excluding covered other real estate

97,037,000

116,329,000

'

'

'

'

'

'

'

63,127,000

65,273,000

9,998,000

14,696,000

22,251,000

26,433,000

1,661,000

137,000

Covered other real estate, beginning of period

5,108,000

5,741,000

713,000

733,000

1,267,000

1,981,000

2,166,000

2,394,000

'

'

'

'

'

'

'

'

'

Transfers from covered loans

690,000

1,380,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

FASB ASC 310-30 adjustment for the residual recorded investment

9,000

-541,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net transfers from covered loans

699,000

839,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Disposals

-870,000

-848,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Write-downs

-791,000

-640,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Covered other real estate, end of period

4,146,000

5,092,000

713,000

733,000

1,267,000

1,981,000

2,166,000

2,394,000

'

'

'

'

'

'

'

'

'

(Loss) Gain, net on the sale of covered other real estate included in ORE/Foreclosure expense

-132,000

47,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other real estate acquired

'

'

'

'

'

'

'

'

40,100,000

'

'

'

'

'

'

'

'

Schedule Of Covered Loans And Other Real Estate Acquired [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total covered other real estate

$4,146,000

$5,092,000

$713,000

$733,000

$1,267,000

$1,981,000

$2,166,000

$2,394,000

'

'

'

'

'

'

'

'

'

[1]

Additions as of September 30, 2013 included $40.1 million of other real estate acquired from BancTrust on February 15, 2013.

Other_Real_Estate_and_Covered_3

Other Real Estate and Covered Other Real Estate, (by geographic location) (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	$97,037		$106,539		$116,329	$78,189
Alabama [Member]	'		'		'	'
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	24,256		25,912		'	'
Florida [Member]	'		'		'	'
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	36,608		34,480		'	'
Mississippi [Member]	'		'		'	'
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	16,419	[1]	22,766	[1]	'	'
Tennessee [Member]	'		'		'	'
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	11,347	[2]	12,892	[2]	'	'
Texas [Member]	'		'		'	'
Other real estate, excluding covered other real estate [Line Items]	'		'		'	'
Total other real estate, excluding covered other real estate	$8,407		$10,489		'	'
[1]	Mississippi includes Central and Southern Mississippi Regions
[2]	Tennessee includes Memphis, Tennessee and Northern Mississippi Regions

FDIC_Indemnification_Asset_Det

FDIC Indemnification Asset (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
FDIC Indemnification Asset [Abstract]	'	'	'
FDIC True-up provisions	$1,900,000	'	$1,700,000
Reduction of FDIC indemnification asset included in other noninterest income	507,000	3,300,000	'
Balance at beginning of period	14,347,000	21,774,000	'
(Amortization) Accretion	-1,633,000	-141,000	'
Transfers to FDIC claims	-4,021,000	-1,097,000	'
Change in expected cash flows	-373,000	-3,251,000	'
Change in FDIC true up-provision	-166,000	-200,000	'
Balance at end of period	$8,154,000	$17,085,000	'

Deposits_Details

Deposits (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Deposits [Abstract]	'	'
Noninterest-bearing demand deposits	$2,723,480	$2,663,503
Interest-bearing demand	1,819,986	1,923,701
Savings	2,942,663	2,997,294
Time	2,027,096	2,275,404
Total deposits	$9,513,225	$9,859,902

Defined_Benefit_and_Other_Post2

Defined Benefit and Other Postretirement Benefits (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2014
Trustmark Capital Accumulation Plan [Member]	'	'	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'	'	'
Years of service required to vest	'	'	'3 years	'	'
Net periodic benefit cost [Abstract]	'	'	'	'	'
Service cost	$123,000	$148,000	$372,000	$446,000	'
Interest cost	1,328,000	1,252,000	3,971,000	3,506,000	'
Expected return on plan assets	-1,563,000	-2,060,000	-4,681,000	-5,660,000	'
Recognized net loss due to settlement	1,709,000	838,000	2,459,000	1,363,000	'
Recognized net actuarial (gain) loss	-1,701,000	1,374,000	-229,000	4,142,000	'
Net periodic benefit cost	-104,000	1,552,000	1,892,000	3,797,000	'
Expected minimum required contribution, prior to HAFTA	'	'	'	'	1,800,000
Expected minimum required contribution, after HAFTA	'	'	'	'	0
Actual contribution	'	'	1,000,000	'	'
Supplemental Retirement Plan [Member]	'	'	'	'	'
Net periodic benefit cost [Abstract]	'	'	'	'	'
Service cost	74,000	150,000	222,000	448,000	'
Interest cost	548,000	484,000	1,650,000	1,452,000	'
Amortization of prior service cost	63,000	62,000	188,000	188,000	'
Recognized net actuarial (gain) loss	164,000	260,000	497,000	778,000	'
Net periodic benefit cost	$849,000	$956,000	$2,557,000	$2,866,000	'

Stock_and_Incentive_Compensati2

Stock and Incentive Compensation Plans (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Compensation expense - Stock and Incentive plans [Abstract]	'	'	'	'
Compensation expense - Stock and Incentive plans	$1,055	$976	$3,290	$2,850
Performance Awards [Member]	'	'	'	'
Shares [Roll Forward]	'	'	'	'
Outstanding/Nonvested shares or units, beginning of period (in shares)	184,133	'	160,520	'
Granted (in shares)	'	'	73,726	'
Exercised or released from restriction (in shares)	'	'	-38,580	'
Forfeited (in shares)	0	'	-11,533	'
Outstanding/Nonvested shares or units, end of period (in shares)	184,133	'	184,133	'
Compensation expense - Stock and Incentive plans [Abstract]	'	'	'	'
Compensation expense - Stock and Incentive plans	267	222	797	620
Time-Vested Awards [Member]	'	'	'	'
Shares [Roll Forward]	'	'	'	'
Outstanding/Nonvested shares or units, beginning of period (in shares)	331,183	'	291,634	'
Granted (in shares)	'	'	104,190	'
Exercised or released from restriction (in shares)	'	'	-60,706	'
Forfeited (in shares)	-1,249	'	-5,184	'
Outstanding/Nonvested shares or units, end of period (in shares)	329,934	'	329,934	'
Compensation expense - Stock and Incentive plans [Abstract]	'	'	'	'
Compensation expense - Stock and Incentive plans	$788	$754	$2,493	$2,230
Restricted Stock [Member] | Performance Awards Includes Achievement Shares For Grants After 2013 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Vesting period	'	'	'3 years	'
Restricted Stock [Member] | Achievement Shares From Performance Grants Prior To 2013 [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Vesting period	'	'	'3 years	'
Restricted Stock [Member] | Time-Vested Awards [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Vesting period	'	'	'3 years	'
Restricted Stock Units (RSUs) [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
ROATE Performance measure (in hundredths)	'	'	100.00%	'
TSR Performance measure (in hundredths)	'	'	100.00%	'
Stock Option-Based Awards [Member]	'	'	'	'
Options [Roll Forward]	'	'	'	'
Outstanding/Nonvested shares, beginning of period (in shares)	0	'	105,450	'
Granted (in shares)	'	'	0	'
Exercised or released from restriction (in shares)	'	'	0	'
Expired (in shares)	'	'	-105,450	'
Forfeited (in shares)	0	'	0	'
Outstanding/Nonvested shares, end of period (in shares)	0	'	0	'
2005 Stock and Incentive Compensation Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Vesting period	'	'	'5 years	'
Stock and incentive compensation plan, contractual term	'	'	'7 years	'
1997 Long Term Incentive Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Vesting period	'	'	'4 years	'
Stock and incentive compensation plan, contractual term	'	'	'10 years	'

Contingencies_Details

Contingencies (Details) (USD $)	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Jun. 30, 2013	Sep. 30, 2014
In Millions, unless otherwise specified	Member		Standby Letters of Credit [Member]	Standby Letters of Credit [Member]	Pending or Threatened Litigation, Stanford Financial Group [Member]	Pending or Threatened Litigation, Overdraft Fees [Member]	Pending or Threatened Litigation, Overdraft Fees [Member]
	Customer				Lawsuit		Lawsuit
Loss Contingencies [Line Items]	'	'	'	'	'	'	'
Unused commitments to extend credit	$2,443	$2,064	'	'	'	'	'
Maximum potential exposure to credit loss in the event of nonperformance	'	'	137.1	148.5	'	'	'
Letters of credit, maturity term - maximum	'	'	'3 years	'	'	'	'
Collateral held, fair value	'	'	32.7	'	'	'	'
Legal Proceedings [Abstract]	'	'	'	'	'	'	'
Lawsuits naming entity as defendant, number	'	'	'	'	2	'	2
Litigation settlement	'	'	'	'	'	4	'
Litigation settlement net of taxes	'	'	'	'	'	$2.50	'
Potential claims resolved by settlement	100,000	'	'	'	'	'	'
Number of customers that excluded themselves from the class action settlement	16	'	'	'	'	'	'

Earnings_Per_Share_EPS_Details

Earnings Per Share (EPS) (Details)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share (EPS) [Abstract]	'	'	'	'
Basic shares (in shares)	67,440	67,177	67,430	66,779
Dilutive shares (in shares)	169	205	150	184
Diluted shares (in shares)	67,609	67,382	67,580	66,963
Weighted-average antidilutive stock awards (in shares)	0	270	42	379

Statements_of_Cash_Flows_Detai

Statements of Cash Flows (Details) (USD $)	9 Months Ended					12 Months Ended		9 Months Ended	12 Months Ended		9 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
					As Reported [Member]	As Reported [Member]	As Reported [Member]	Adjustment [Member]	Adjustment [Member]	Adjustment [Member]	As Adjusted [Member]	As Adjusted [Member]	As Adjusted [Member]
Statements of Cash Flows [Abstract]	'		'		'	'	'	'	'	'	'	'	'
Income taxes paid	$13,205		$14,220		'	'	'	'	'	'	'	'	'
Interest expense paid on deposits and borrowings	16,361		18,656		'	'	'	'	'	'	'	'	'
Noncash transfers from loans to foreclosed properties	30,671	[1]	34,226	[1]	'	'	'	'	'	'	'	'	'
Assets acquired in business combination	0		1,845,930		'	'	'	'	'	'	'	'	'
Liabilities assumed in business combination	0		1,821,066		'	'	'	'	'	'	'	'	'
Prior Period Adjustments [Line Items]	'		'		'	'	'	'	'	'	'	'	'
Net cash provided by operating activities	159,582		264,015		151,260	155,417	92,125	112,755	145,766	20,152	264,015	301,183	112,277
Net cash used in investing activities	-477,919		-261,751		-148,996	-113,201	193,891	-112,755	-145,766	-20,152	-261,751	-258,967	173,739
Net cash provided by financing activities	210,073		101,942		101,942	72,056	-257,152	0	0	0	101,942	72,056	-257,152
(Decrease) Increase in cash and cash equivalents	-108,264		104,206		104,206	114,272	28,864	0	0	0	104,206	114,272	28,864
Cash and cash equivalents at beginning of period	345,761		231,489		231,489	231,489	202,625	0	0	0	231,489	231,489	202,625
Cash and cash equivalents at end of period	$237,497		$335,695		$335,695	$345,761	$231,489	$0	$0	$0	$335,695	$345,761	$231,489
[1]	Includes transfers from covered loans to covered other real estate.

Shareholders_Equity_Details

Shareholders' Equity (Details) (USD $)

3 Months Ended

9 Months Ended

In Thousands, unless otherwise specified

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Securities Available for Sale and Transferred Securities [Member]

Securities Available for Sale and Transferred Securities [Member]

Defined Benefit Pension Items [Member]

Defined Benefit Pension Items [Member]

Cash Flow Hedge Derivatives [Member]

Cash Flow Hedge Derivatives [Member]

Trustmark Corporation [Member]

Trustmark Corporation [Member]

Trustmark Corporation [Member]

Trustmark Corporation [Member]

Trustmark Corporation [Member]

Trustmark Corporation [Member]

Trustmark National Bank [Member]

Trustmark National Bank [Member]

Trustmark National Bank [Member]

Trustmark National Bank [Member]

Trustmark National Bank [Member]

Trustmark National Bank [Member]

Total Capital (to Risk Weighted Assets) [Member]

Total Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Average Assets) [Member]

Tier 1 Capital (to Average Assets) [Member]

Total Capital (to Risk Weighted Assets) [Member]

Total Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Risk Weighted Assets) [Member]

Tier 1 Capital (to Average Assets) [Member]

Tier 1 Capital (to Average Assets) [Member]

Total Capital (to Risk Weighted Assets) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Actual Regulatory Capital Amount

'

'

'

'

'

'

'

'

'

'

$1,218,220

$1,122,904

'

'

'

'

$1,194,589

$1,076,391

'

'

'

'

Actual Regulatory Capital Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

14.70%

14.18%

'

'

'

'

14.44%

13.74%

'

'

'

'

Minimum Regulatory Capital Required Amount

'

'

'

'

'

'

'

'

'

'

663,009

633,310

'

'

'

'

661,737

626,672

'

'

'

'

Minimum Regulatory Capital Required Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

8.00%

8.00%

'

'

'

'

8.00%

8.00%

'

'

'

'

Minimum Regulatory Provision to be Well-Capitalized Amount

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

827,171

783,340

'

'

'

'

Minimum Regulatory Provision to be Well-Capitalized Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

10.00%

10.00%

'

'

'

'

Tier 1 Capital (to Risk Weighted Assets) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Actual Regulatory Capital Amount

'

'

'

'

'

'

'

'

'

'

'

'

1,116,166

1,026,858

'

'

'

'

1,094,124

982,925

'

'

Actual Regulatory Capital Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

13.47%

12.97%

'

'

'

'

13.23%

12.55%

'

'

Minimum Regulatory Capital Required Amount

'

'

'

'

'

'

'

'

'

'

'

'

331,504

316,655

'

'

'

'

330,868

313,336

'

'

Minimum Regulatory Capital Required Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

4.00%

4.00%

'

'

'

'

4.00%

4.00%

'

'

Minimum Regulatory Provision to be Well-Capitalized Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

496,302

470,004

'

'

Minimum Regulatory Provision to be Well-Capitalized Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

6.00%

6.00%

'

'

Tier 1 Capital (to Average Assets) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Actual Regulatory Capital Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,116,166

1,026,858

'

'

'

'

1,094,124

982,925

Actual Regulatory Capital Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.54%

9.06%

'

'

'

'

9.37%

8.76%

Minimum Regulatory Capital Required Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

467,917

453,487

'

'

'

'

467,135

448,665

Minimum Regulatory Capital Required Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.00%

4.00%

'

'

'

'

4.00%

4.00%

Minimum Regulatory Provision to be Well-Capitalized Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

583,919

560,831

Minimum Regulatory Provision to be Well-Capitalized Ratio (in hundredths)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

'

[1]

'

'

'

'

5.00%

5.00%

Securities available for sale and transferred securities, Before tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized holding (losses) gains arising during the period, Before tax amount

'

'

9,415

-98,130

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reclassification adjustment for net gains realized in net income, Before tax amount

'

'

-300

-378

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in net unrealized holding loss on securities transferred to held to maturity, Before tax amount

'

'

4,444

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total securities available for sale and transferred securities, Before tax amount

'

'

13,559

-98,508

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available for sale and transferred securities, Tax (expense) benefit: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized holding (losses) gains arising during period, Tax Effect

'

'

-3,601

37,534

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reclassification adjustment for net gains realized in net income, Tax

'

'

115

145

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in net unrealized holding loss on securities transferred to held to maturity, Tax

'

'

-1,700

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total securities available for sale and transferred securities, Tax

'

'

-5,186

37,679

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Securities available for sale and transferred securities, Net of tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unrealized holding (losses) gains arising during the period, after tax income (expense)

-5,182

-17,461

5,814

-60,596

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Reclassification adjustment for net gains realized in net income, after tax income (expense)

55

0

-185

-233

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in net unrealized holding loss on securities transferred to held to maturity, after tax income (expense)

1,011

0

2,744

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total securities available for sale and transferred securities, after tax income (expense)

'

'

8,373

-60,829

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension and other postretirement benefit plans, Before tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net change in prior service costs, before tax amount

'

'

188

188

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net loss due to settlement, before tax amount

'

'

2,459

1,363

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net actuarial loss (gain), before tax amount

'

'

268

4,920

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total pension and other postretirement benefit plans, before tax amount

'

'

2,915

6,471

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension and other postretirement benefit plans, Tax (expense) benefit: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net change in prior service costs, tax (expense) benefit

'

'

-72

-72

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net loss due to settlement, tax (expense) benefit

'

'

-941

-521

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net actuarial loss (gain), tax (expense) benefit

'

'

-102

-1,882

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total pension and other postretirement benefit plans, tax (expense) benefit

'

'

-1,115

-2,475

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Pension and other postretirement benefit plans, Net of tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net change in prior service costs, after tax income (expense)

39

38

116

116

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net loss due to settlement after tax income (expense)

1,055

518

1,518

842

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Recognized net actuarial loss (gain), after tax income (expense)

-949

1,009

166

3,038

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total pension and other postretirement benefit plans, after tax income (expense)

'

'

1,800

3,996

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives, Before tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in accumulated gain on effective cash flow hedge derivatives, before tax amount

'

'

-1,307

1,963

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives, Tax (expense) benefit: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in accumulated gain on effective cash flow hedge derivatives, tax (expense) benefit

'

'

500

-751

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives, Net of tax amount: [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change in the accumulated gain on effective cash flow hedge derivatives, after tax amount

163

-242

-807

1,212

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total other comprehensive income (loss), Before tax amount

'

'

15,167

-90,074

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total other comprehensive income (loss), Tax expense (benefit)

'

'

-5,801

34,453

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total other comprehensive income (loss), Net of tax

'

'

9,366

-55,621

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated Other Comprehensive Income (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Opening balance

'

'

-43,731

3,395

-25,462

44,935

-19,793

-41,540

1,524

0

'

'

'

'

'

'

'

'

'

'

'

'

Other comprehensive income (loss) before reclassification

'

'

9,551

-55,388

8,558

-60,596

1,800

3,996

-807

1,212

'

'

'

'

'

'

'

'

'

'

'

'

Amounts reclassified from accumulated other comprehensive income

'

'

-185

-233

-185

-233

0

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

Net other comprehensive income (loss)

-3,808

-16,138

9,366

-55,621

8,373

-60,829

1,800

3,996

-807

1,212

'

'

'

'

'

'

'

'

'

'

'

'

Ending balance

($34,365)

($52,226)

($34,365)

($52,226)

($17,089)

($15,894)

($17,993)

($37,544)

$717

$1,212

'

'

'

'

'

'

'

'

'

'

'

'

[1]

n/a

Fair_Value_Part_1_Details

Fair Value Part 1 (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Securities available for sale	$2,363,895	$2,194,154	'	'
Loans held for sale	135,562	149,169	'	'
Mortgage servicing rights	67,090	67,834	63,150	47,341
Recurring Basis [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
U.S. Treasury securities	100	502	'	'
U.S. Government agency obligations	113,790	169,472	'	'
Obligations of states and political subdivisions	165,463	171,738	'	'
Mortgage-backed securities	2,051,027	1,788,505	'	'
Asset-backed securities and structured financial products	33,515	63,937	'	'
Securities available for sale	2,363,895	2,194,154	'	'
Loans held for sale	135,562	149,169	'	'
Mortgage servicing rights	67,090	67,834	'	'
Other assets - derivatives	5,034	4,994	'	'
Other liabilities - derivatives	3,746	3,298	'	'
Level 1 [Member] | Recurring Basis [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
U.S. Treasury securities	0	0	'	'
U.S. Government agency obligations	0	0	'	'
Obligations of states and political subdivisions	0	0	'	'
Mortgage-backed securities	0	0	'	'
Asset-backed securities and structured financial products	0	0	'	'
Securities available for sale	0	0	'	'
Loans held for sale	0	0	'	'
Mortgage servicing rights	0	0	'	'
Other assets - derivatives	-500	-2,579	'	'
Other liabilities - derivatives	181	581	'	'
Level 2 [Member] | Recurring Basis [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
U.S. Treasury securities	100	502	'	'
U.S. Government agency obligations	113,790	169,472	'	'
Obligations of states and political subdivisions	165,463	171,738	'	'
Mortgage-backed securities	2,051,027	1,788,505	'	'
Asset-backed securities and structured financial products	33,515	63,937	'	'
Securities available for sale	2,363,895	2,194,154	'	'
Loans held for sale	135,562	149,169	'	'
Mortgage servicing rights	0	0	'	'
Other assets - derivatives	4,194	7,447	'	'
Other liabilities - derivatives	3,565	2,717	'	'
Level 3 [Member] | Recurring Basis [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
U.S. Treasury securities	0	0	'	'
U.S. Government agency obligations	0	0	'	'
Obligations of states and political subdivisions	0	0	'	'
Mortgage-backed securities	0	0	'	'
Asset-backed securities and structured financial products	0	0	'	'
Securities available for sale	0	0	'	'
Loans held for sale	0	0	'	'
Mortgage servicing rights	67,090	67,834	'	'
Other assets - derivatives	1,340	126	'	'
Other liabilities - derivatives	$0	$0	'	'

Fair_Value_Part_2_Details

Fair Value Part 2 (Details) (Recurring Basis [Member], Level 3 [Member], USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014		Sep. 30, 2013
MSR [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Beginning Balance	$67,834		$47,341
Total net (losses) gains included in Mortgage banking net	-9,628	[1]	258	[1]
Additions	8,884		15,551
Sales	0		0
Ending Balance	67,090		63,150
The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period	-3,060		7,881
Other Assets - Derivatives [Member]	'		'
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]	'		'
Beginning Balance	126		2,284
Total net (losses) gains included in Mortgage banking net	3,508	[1]	7,558	[1]
Additions	0		0
Sales	-2,294		-7,795
Ending Balance	1,340		2,047
The amount of total (losses) gains for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period	$807		$954
[1]	Total net (losses) gains included in net income relating to MSR includes changes in fair value due to market changes and due to run-off.

Fair_Value_Part_3_Details

Fair Value Part 3 (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Securities held to maturity	$1,169,640,000	'	$1,168,728,000	'
Net LHFI	6,263,517,000	'	5,732,433,000	'
FDIC indemnification asset	8,154,000	17,085,000	14,347,000	21,774,000
Deposits	9,513,225,000	'	9,859,902,000	'
Long-term FHLB advances	8,003,000	'	8,458,000	'
Subordinated notes	49,928,000	'	49,904,000	'
Junior subordinated debt securities	61,856,000	'	61,856,000	'
Nonfinancial Assets and Liabilities [Abstract]	'	'	'	'
Outstanding balances in impaired loans	54,100,000	'	31,600,000	'
Foreclosed assets measured at fair value	30,000,000	73,900,000	'	'
Allowance for possible loan losses, Charge-offs for foreclosed assets upon initial recognition	9,300,000	9,200,000	'	'
Foreclosed assets re-measured after initial recognition	40,600,000	35,000,000	'	'
Write-downs of allowance for foreclosed assets after initial recognition	4,800,000	6,100,000	'	'
Estimated fair value of financial instruments with immediate and shorter-term maturities maximum	'90 days	'	'	'
BancTrust Financial Group, Inc. [Member]	'	'	'	'
Nonfinancial Assets and Liabilities [Abstract]	'	'	'	'
Foreclosed assets measured at fair value	'	40,100,000	'	'
Level 2 [Member] | Carrying Value [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Cash and short-term investments	241,510,000	'	353,014,000	'
Securities held to maturity	1,169,640,000	'	1,168,728,000	'
Deposits	9,513,225,000	'	9,859,902,000	'
Short-term liabilities	924,517,000	'	317,972,000	'
Long-term FHLB advances	8,003,000	'	8,458,000	'
Subordinated notes	49,928,000	'	49,904,000	'
Junior subordinated debt securities	61,856,000	'	61,856,000	'
Level 2 [Member] | Estimate Fair Value [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Cash and short-term investments	241,510,000	'	353,014,000	'
Securities held to maturity	1,170,213,000	'	1,150,833,000	'
Deposits	9,518,584,000	'	9,866,118,000	'
Short-term liabilities	924,517,000	'	317,972,000	'
Long-term FHLB advances	8,014,000	'	8,474,000	'
Subordinated notes	53,665,000	'	53,387,000	'
Junior subordinated debt securities	46,392,000	'	40,206,000	'
Level 3 [Member] | Carrying Value [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Net LHFI	6,263,517,000	'	5,732,433,000	'
Net acquired loans	580,200,000	'	794,570,000	'
FDIC indemnification asset	8,154,000	'	14,347,000	'
Level 3 [Member] | Estimate Fair Value [Member]	'	'	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Net LHFI	6,348,938,000	'	5,787,408,000	'
Net acquired loans	580,200,000	'	794,570,000	'
FDIC indemnification asset	$8,154,000	'	$14,347,000	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments Part 1 (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Designated as Hedging Instrument [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Lock Commitments Member]

Interest Rate Lock Commitments Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Beneficiary [Member]

Beneficiary [Member]

Guarantor [Member]

Guarantor [Member]

Contract

Contract

Contract

Contract

Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Off-balance sheet obligations

$175,700,000

$155,800,000

'

'

'

'

'

'

$107,000,000

$58,500,000

'

'

'

'

'

'

Valuation adjustment

-623,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional amount of mirror-image derivative contracts

'

'

60,000,000

'

'

'

'

'

'

'

337,900,000

355,900,000

'

'

'

'

Period for which cash flow hedges will be used to hedge quarterly interest payments

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative inception date

'

'

31-Dec-14

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative maturity date

'

'

31-Dec-19

'

'

'

'

'

'

'

'

'

'

'

'

'

Description of variable rate basis for derivative

'

'

'three-month LIBOR

'

'

'

'

'

'

'

'

'

'

'

'

'

Swap fixed interest rate to be paid (in hundredths)

'

'

1.66%

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated net, after tax gain included in other comprehensive loss

'

'

717,000

1,500,000

'

'

'

'

'

'

'

'

'

'

'

'

The period over which OCI will be reclassified as interest expense

'

'

'12 months

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated amount to be reclassified as an increase to interest expense

'

'

575,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Net positive ineffectiveness on MSR fair value

'

'

'

'

583,000

1,300,000

3,000,000

2,700,000

'

'

'

'

'

'

'

'

Positive valuation adjustment

'

1,900,000

'

'

'

'

'

'

1,300,000

126,000

'

'

'

'

'

'

Termination value of derivatives

'

'

'

'

'

'

'

'

'

'

631,000

508,000

'

'

'

'

Market value of posted collateral

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

Number of risk participation agreements

'

'

'

'

'

'

'

'

'

'

'

'

3

3

1

0

Aggregate notional amount of credit risk participation agreements

'

'

'

'

'

'

'

'

'

'

'

'

$19,300,000

$19,700,000

$6,300,000

$0

Derivative_Financial_Instrumen3

Derivative Financial Instruments Part 2 (Details) (USD $)

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

In Thousands, unless otherwise specified

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives in Hedging Relationships [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Derivatives not Designated as Hedging Instruments [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Other Comprehensive Income (Loss) [Member]

Other Comprehensive Income (Loss) [Member]

Other Comprehensive Income (Loss) [Member]

Other Comprehensive Income (Loss) [Member]

Forward Contracts [Member]

Forward Contracts [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Mortgage Banking, Net [Member]

Bankcard and Other Fees [Member]

Bankcard and Other Fees [Member]

Bankcard and Other Fees [Member]

Bankcard and Other Fees [Member]

Future Contracts [Member]

Future Contracts [Member]

Exchange Traded Purchased Options [Member]

Exchange Traded Purchased Options [Member]

OTC Written Options (Rate Locks) [Member]

OTC Written Options (Rate Locks) [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Interest Rate Swap [Member]

Credit Risk Participation Agreement [Member]

Credit Risk Participation Agreement [Member]

Credit Risk Participation Agreement [Member]

Credit Risk Participation Agreement [Member]

Exchange Traded Written Options [Member]

Exchange Traded Written Options [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Assets [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Assets [Member]

Other Assets [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Other Liabilities [Member]

Derivatives, Fair Value [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of derivative asset

$4,178

$7,431

'

'

'

'

'

'

'

'

'

'

$1,161

$2,469

'

'

'

'

'

'

'

'

($816)

($2,662)

$316

$83

$1,340

$126

$3,017

$4,962

'

'

$16

$16

'

'

'

'

Fair value of derivative liability

2,926

4,628

'

'

'

'

'

'

'

'

623

-1,911

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,926

4,628

'

'

16

16

181

581

Derivative Instruments, Gain (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of (loss) gain recognized

'

'

-1,765

-13,008

2,534

-2,141

'

'

'

'

'

'

'

'

-986

2,728

7,267

-5,421

3

-203

-239

192

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount of (loss) gain recognized in other comprehensive income (loss)

'

'

'

'

'

'

$163

($242)

($807)

$1,212

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative_Financial_Instrumen4

Derivative Financial Instruments, Offsetting (Details) (Interest Rate Swap [Member], USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Interest Rate Swap [Member]	'	'
Offsetting Derivative Assets [Abstract]	'	'
Gross Amounts of Recognized Assets, Offsetting of Derivative Assets	$4,178	$7,431
Gross Amounts Offset in the Statement of Financial Position, Offsetting of Derivative Assets	0	0
Net Amounts of Assets presented in the Statement of Financial Position, Offsetting of Derivative Assets	4,178	7,431
Financial Instruments, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Assets	-1,038	-967
Cash Collateral Received, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Assets	-650	-1,920
Net Amount, Offsetting of Derivative Assets	2,490	4,544
Offsetting Derivative Liabilities [Abstract]	'	'
Gross Amounts of Recognized Liabilities, Offsetting of Derivative Liabilities	2,926	4,628
Gross Amounts Offset in the Statement of Financial Position, Offsetting of Derivative Liabilities	0	0
Net Amounts of Liabilities presented in the Statement of Financial Position, Offsetting of Derivative Liabilities	2,926	4,628
Financial Instruments, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Liabilities	-1,038	-967
Cash Collateral Posted, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Liabilities	0	0
Net Amount, Offsetting of Derivative Liabilities	$1,888	$3,661

Segment_Information_Details

Segment Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
			Segment
Segment Reporting Information [Line Items]	'	'	'	'
Number of segments in which the business operates	'	'	3	'
Net interest income	$106,229	$98,429	$306,421	$286,632
Provision for loan losses, net	4,203	-332	7,596	-9,568
Noninterest income	42,893	47,133	131,111	135,186
Noninterest expense	100,194	101,524	304,573	310,864
Income before income taxes	44,725	44,370	125,363	120,522
Income taxes	11,136	11,336	29,874	31,501
Net Income	33,589	33,034	95,489	89,021
Selected Financial Information [Abstract]	'	'	'	'
Average assets	12,091,213	11,759,108	11,994,315	11,450,755
Depreciation and amortization	9,132	9,483	27,088	27,800
General Banking [Member] | Operating Segments [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	105,672	98,135	305,422	285,915
Provision for loan losses, net	4,203	-332	7,596	-9,568
Noninterest income	25,663	31,443	81,685	90,352
Noninterest expense	86,935	89,198	265,067	274,545
Income before income taxes	40,197	40,712	114,444	111,290
Income taxes	9,535	10,040	26,012	28,216
Net Income	30,662	30,672	88,432	83,074
Selected Financial Information [Abstract]	'	'	'	'
Average assets	12,013,572	11,688,102	11,928,029	11,383,231
Depreciation and amortization	8,896	9,186	26,289	26,905
Wealth Management [Member] | Operating Segments [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	467	192	749	480
Noninterest income	7,989	7,459	23,784	21,338
Noninterest expense	6,303	6,294	19,357	18,230
Income before income taxes	2,153	1,357	5,176	3,588
Income taxes	712	446	1,714	1,178
Net Income	1,441	911	3,462	2,410
Selected Financial Information [Abstract]	'	'	'	'
Average assets	263	461	1,478	256
Depreciation and amortization	48	39	143	118
Insurance [Member] | Operating Segments [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net interest income	90	102	250	237
Noninterest income	9,241	8,231	25,642	23,496
Noninterest expense	6,956	6,032	20,149	18,089
Income before income taxes	2,375	2,301	5,743	5,644
Income taxes	889	850	2,148	2,107
Net Income	1,486	1,451	3,595	3,537
Selected Financial Information [Abstract]	'	'	'	'
Average assets	77,378	70,545	64,808	67,268
Depreciation and amortization	$188	$258	$656	$777