10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2016

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission file number 000-03683

Trustmark Corporation

(Exact name of registrant as specified in its charter)

Mississippi	64-0471500
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

248 East Capitol Street, Jackson, Mississippi	39201
(Address of principal executive offices)	(Zip Code)

(601) 208-5111

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b of the Exchange Act.

Large accelerated filer	☒		Accelerated filer	☐
Non-accelerated filer	☐	(Do not check if a smaller reporting company)	Smaller reporting company	☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

As of October 31, 2016, there were 67,627,272 shares outstanding of the registrant’s common stock (no par value).

Forward-Looking Statements

Certain statements contained in this Quarterly Report on Form 10-Q constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.  You can identify forward-looking statements by words such as “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “potential,” “continue,” “could,” “future” or the negative of those terms or other words of similar meaning.  You should read statements that contain these words carefully because they discuss our future expectations or state other “forward-looking” information.  These forward-looking statements include, but are not limited to, statements relating to anticipated future operating and financial performance measures, including net interest margin, credit quality, business initiatives, growth opportunities and growth rates, among other things, and encompass any estimate, prediction, expectation, projection, opinion, anticipation, outlook or statement of belief included therein as well as the management assumptions underlying these forward-looking statements.  You should be aware that the occurrence of the events described under the caption “Risk Factors” in Trustmark’s filings with the Securities and Exchange Commission could have an adverse effect on our business, results of operations and financial condition.  Should one or more of these risks materialize, or should any such underlying assumptions prove to be significantly different, actual results may vary significantly from those anticipated, estimated, projected or expected.

Risks that could cause actual results to differ materially from current expectations of Management include, but are not limited to, changes in the level of nonperforming assets and charge-offs, local, state and national economic and market conditions, including conditions in the housing and real estate markets in the regions in which Trustmark operates and the extent and duration of the current volatility in the credit and financial markets as well as crude oil prices, changes in our ability to measure the fair value of assets in our portfolio, material changes in the level and/or volatility of market interest rates, the performance and demand for the products and services we offer, including the level and timing of withdrawals from our deposit accounts, the costs and effects of litigation and of unexpected or adverse outcomes in such litigation, our ability to attract noninterest-bearing deposits and other low-cost funds, competition in loan and deposit pricing, as well as the entry of new competitors into our markets through de novo expansion and acquisitions, economic conditions, including the potential impact of issues relating to the European financial system and monetary and other governmental actions designed to address the level and volatility of interest rates and the volatility of securities, currency and other markets, the enactment of legislation and changes in existing regulations or enforcement practices or the adoption of new regulations, changes in accounting standards and practices, including changes in the interpretation of existing standards, that affect our consolidated financial statements, changes in consumer spending, borrowings and savings habits, technological changes, changes in the financial performance or condition of our borrowers, changes in our ability to control expenses, changes in our compensation and benefit plans, including those associated with the planned termination of our noncontributory tax-qualified defined benefit pension plan, greater than expected costs or difficulties related to the integration of acquisitions or new products and lines of business, cyber-attacks and other breaches which could affect our information system security, natural disasters, environmental disasters, acts of war or terrorism, and other risks described in our filings with the Securities and Exchange Commission.

Although we believe that the expectations reflected in such forward-looking statements are reasonable, we can give no assurance that such expectations will prove to be correct.  Except as required by law, we undertake no obligation to update or revise any of this information, whether as the result of new information, future events or developments or otherwise.

2

PART I.  FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS

Trustmark Corporation and Subsidiaries

Consolidated Balance Sheets

($ in thousands)

	(Unaudited)
	September 30, 2016			December 31, 2015
Assets
Cash and due from banks (noninterest-bearing)	$	383,945		$	277,751
Federal funds sold and securities purchased under reverse repurchase agreements		500			250
Securities available for sale (at fair value)		2,410,947			2,345,422
Securities held to maturity (fair value: $1,173,101-2016; $1,195,367-2015)		1,143,234			1,187,818
Loans held for sale (LHFS)		242,097			160,189
Loans held for investment (LHFI)		7,499,204			7,091,385
Less allowance for loan losses, LHFI		70,871			67,619
Net LHFI		7,428,333			7,023,766
Acquired loans:
Noncovered loans		291,825			372,711
Covered loans		3,912			17,700
Less allowance for loan losses, acquired loans		11,380			11,992
Net acquired loans		284,357			378,419
Net LHFI and acquired loans		7,712,690			7,402,185
Premises and equipment, net		190,930			195,656
Mortgage servicing rights		65,514			74,007
Goodwill		366,156			366,156
Identifiable intangible assets		22,366			27,546
Other real estate, excluding covered other real estate		64,993			77,177
Covered other real estate		—			1,651
FDIC indemnification asset		—			738
Other assets		558,166			562,350
Total Assets	$	13,161,538		$	12,678,896
Liabilities
Deposits:
Noninterest-bearing	$	3,111,603		$	2,998,694
Interest-bearing		6,574,098			6,589,536
Total deposits		9,685,701			9,588,230
Federal funds purchased and securities sold under repurchase agreements		514,918			441,042
Short-term borrowings		412,792			412,617
Long-term FHLB advances		751,075			501,155
Subordinated notes		49,993			49,969
Junior subordinated debt securities		61,856			61,856
Other liabilities		150,442			150,970
Total Liabilities		11,626,777			11,205,839
Shareholders' Equity
Common stock, no par value:
Authorized:  250,000,000 shares Issued and outstanding:  67,626,939 shares - 2016; 67,559,128 shares - 2015		14,090			14,076
Capital surplus		365,553			361,467
Retained earnings		1,172,193			1,142,908
Accumulated other comprehensive loss, net of tax		(17,075	)		(45,394	)
Total Shareholders' Equity		1,534,761			1,473,057
Total Liabilities and Shareholders' Equity	$	13,161,538		$	12,678,896

See notes to consolidated financial statements.

3

Trustmark Corporation and Subsidiaries

Consolidated Statements of Income

($ in thousands except per share data)

(Unaudited)

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016			2015		2016			2015
Interest Income
Interest and fees on LHFS & LHFI	$	76,524		$	69,458	$	222,555		$	203,836
Interest and fees on acquired loans		6,781			11,607		21,854			39,242
Interest on securities:
Taxable		19,351			20,264		58,839			59,581
Tax exempt		902			1,046		2,804			3,306
Interest on federal funds sold and securities purchased under reverse    repurchase agreements		5			2		10			4
Other interest income		223			392		653			1,177
Total Interest Income		103,786			102,769		306,715			307,146
Interest Expense
Interest on deposits		3,208			3,147		9,368			9,598
Interest on federal funds purchased and securities sold under repurchase    agreements		411			205		1,246			527
Other interest expense		2,603			1,811		7,420			5,074
Total Interest Expense		6,222			5,163		18,034			15,199
Net Interest Income		97,564			97,606		288,681			291,947
Provision for loan losses, LHFI		4,284			2,514		9,123			5,332
Provision for loan losses, acquired loans		691			1,256		2,607			2,428
Net Interest Income After Provision for Loan Losses		92,589			93,836		276,951			284,187
Noninterest Income
Service charges on deposit accounts		11,677			12,400		33,809			35,405
Bank card and other fees		6,756			6,964		21,110			21,142
Mortgage banking, net		7,364			7,443		22,784			25,889
Insurance commissions		10,074			9,906		28,305			27,923
Wealth management		7,571			7,790		22,987			23,538
Other, net		1,274			1,470		3,534			(18	)
Security losses, net		—			—		(310	)		—
Total Noninterest Income		44,716			45,973		132,219			133,879
Noninterest Expense
Salaries and employee benefits		57,250			58,270		181,469			172,832
Services and fees		14,947			14,691		43,944			43,817
Net occupancy - premises		6,440			6,580		18,556			19,014
Equipment expense		6,063			5,877		18,053			17,754
Other real estate expense		(1,313	)		3,385		61			5,421
FDIC assessment expense		2,911			2,559		8,681			8,114
Other expense		11,610			12,198		36,267			36,090
Total Noninterest Expense		97,908			103,560		307,031			303,042
Income Before Income Taxes		39,397			36,249		102,139			115,024
Income taxes		8,415			7,819		22,651			26,844
Net Income	$	30,982		$	28,430	$	79,488		$	88,180
Earnings Per Share
Basic	$	0.46		$	0.42	$	1.18		$	1.31
Diluted	$	0.46		$	0.42	$	1.17		$	1.30
Dividends Per Share	$	0.23		$	0.23	$	0.69		$	0.69

See notes to consolidated financial statements.

4

Trustmark Corporation and Subsidiaries

Consolidated Statements of Comprehensive Income

($ in thousands)

(Unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Net income per consolidated statements of income	$	30,982		$	28,430		$	79,488		$	88,180
Other comprehensive (loss) income, net of tax:
Unrealized (losses) gains on available for sale securities and    transferred securities:
Unrealized holding (losses) gains arising during the period		(7,816	)		11,035			19,796			8,470
Less: adjustment for net losses realized in net income		—			—			191			—
Change in net unrealized holding loss on securities    transferred to held to maturity		1,653			1,036			5,171			2,931
Pension and other postretirement benefit plans:
Net change in prior service costs		39			39			116			116
Recognized net loss due to lump sum settlement		286			373			1,935			926
Change in net actuarial loss		573			751			1,658			2,256
Derivatives:
Change in the accumulated loss on effective cash flow    hedge derivatives		257			(751	)		(840	)		(1,185	)
Less: adjustment for loss realized in net income		97			130			292			390
Other comprehensive (loss) income, net of tax		(4,911	)		12,613			28,319			13,904
Comprehensive income	$	26,071		$	41,043		$	107,807		$	102,084

See notes to consolidated financial statements.

5

Trustmark Corporation and Subsidiaries

Consolidated Condensed Statements of Changes in Shareholders' Equity

($ in thousands)

(Unaudited)

	2016			2015
Balance, January 1,	$	1,473,057		$	1,419,940
Net income per consolidated statements of income		79,488			88,180
Other comprehensive income, net of tax		28,319			13,904
Common stock dividends paid		(46,983	)		(46,952	)
Common stock issued-net, long-term incentive plan		(992	)		(842	)
Repurchase and retirement of common stock		(750	)		—
Excess tax expense from stock-based compensation arrangements		(119	)		(212	)
Compensation expense, long-term incentive plan		2,741			2,738
Balance, September 30,	$	1,534,761		$	1,476,756

See notes to consolidated financial statements.

6

Trustmark Corporation and Subsidiaries

Consolidated Statements of Cash Flows

($ in thousands)

(Unaudited)

	Nine Months Ended September 30,
	2016			2015
Operating Activities
Net income per consolidated statements of income	$	79,488		$	88,180
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses, net		11,730			7,760
Depreciation and amortization		27,183			27,995
Net amortization of securities		6,833			6,411
Securities losses, net		310			—
Gains on sales of loans, net		(14,477	)		(13,301	)
Deferred income tax provision		12,900			11,600
Proceeds from sales of loans held for sale		1,030,784			943,804
Purchases and originations of loans held for sale		(1,096,979	)		(985,935	)
Originations of mortgage servicing rights		(12,392	)		(13,321	)
Increase in bank-owned life insurance		(3,653	)		(3,598	)
Net (increase) decrease in other assets		(20,833	)		18,480
Net increase (decrease) in other liabilities		5,405			(1,151	)
Other operating activities, net		14,617			6,325
Net cash provided by operating activities		40,916			93,249
Investing Activities
Proceeds from calls and maturities of securities held to maturity		221,002			95,467
Proceeds from calls and maturities of securities available for sale		344,160			345,156
Proceeds from sales of securities available for sale		24,693			—
Purchases of securities held to maturity		(168,665	)		(68,715	)
Purchases of securities available for sale		(408,532	)		(375,866	)
Net proceeds from bank-owned life insurance		604			655
Net (increase) decrease in federal funds sold and securities purchased    under reverse repurchase agreements		(250	)		1,885
Net increase in member bank stock		(2,153	)		(12,585	)
Net increase in loans		(343,707	)		(247,772	)
Purchases of premises and equipment		(6,929	)		(9,934	)
Proceeds from sales of premises and equipment		435			2,896
Proceeds from sales of other real estate		37,378			33,809
Purchases of software		(5,072	)		(6,576	)
Investments in tax credit and other partnerships		(46	)		(315	)
Purchase of insurance book of business		—			(2,787	)
Net cash used in investing activities		(307,082	)		(244,682	)
Financing Activities
Net increase (decrease) in deposits		97,471			(285,954	)
Net increase in federal funds purchased and securities sold under repurchase agreements		73,876			90,661
Net (decrease) increase in short-term borrowings		(1,057	)		298,888
Payments on long-term FHLB advances		(78	)		(77	)
Proceeds from long-term FHLB advances		250,000			—
Common stock dividends		(46,983	)		(46,952	)
Common stock issued-net, long-term incentive plan		—			(842	)
Repurchase and retirement of common stock		(750	)		—
Excess tax expense from stock-based compensation arrangements		(119	)		(212	)
Net cash provided by financing activities		372,360			55,512
Increase (Decrease) in cash and cash equivalents		106,194			(95,921	)
Cash and cash equivalents at beginning of period		277,751			315,973
Cash and cash equivalents at end of period	$	383,945		$	220,052

See notes to consolidated financial statements.

7

Trustmark Corporation and Subsidiaries

Notes to Consolidated Financial Statements

(Unaudited)

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 194 offices in Alabama, Florida, Mississippi, Tennessee and Texas.

The consolidated financial statements 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 2015 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.  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 periods 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 2016 actual conditions could vary from those anticipated, which could affect Trustmark’s financial condition and results of operations.  Actual results could differ from those estimates.

8

Note 2 – Securities Available for Sale and Held to Maturity

The following tables are a summary of the amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2016 and December 31, 2015 ($ in thousands):

	Securities Available for Sale									Securities Held to Maturity
September 30, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
U.S. Government agency obligations
Issued by U.S. Government agencies	$	58,259	$	482	$	(507	)	$	58,234	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		257		26		—			283		3,636		337		—			3,973
Obligations of states and political    subdivisions		121,485		3,167		(11	)		124,641		52,937		2,615		(4	)		55,548
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		36,130		712		(54	)		36,788		16,183		666		—			16,849
Issued by FNMA and FHLMC		554,916		7,239		(166	)		561,989		39,989		810		—			40,799
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,353,984		21,507		(1,092	)		1,374,399		831,662		18,690		(60	)		850,292
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		247,689		6,945		(21	)		254,613		198,827		6,921		(108	)		205,640
Total	$	2,372,720	$	40,078	$	(1,851	)	$	2,410,947	$	1,143,234	$	30,039	$	(172	)	$	1,173,101
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	68,314	$	555	$	(734	)	$	68,135	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		258		23		—			281		101,782		3,282		—			105,064
Obligations of states and political    subdivisions		134,719		3,922		(32	)		138,609		55,892		2,918		—			58,810
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		25,602		399		(189	)		25,812		17,363		342		(49	)		17,656
Issued by FNMA and FHLMC		222,899		2,956		(313	)		225,542		10,368		311		—			10,679
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,584,338		9,541		(11,019	)		1,582,860		820,012		4,951		(4,742	)		820,221
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		278,429		2,689		(1,892	)		279,226		182,401		1,700		(1,164	)		182,937
Asset-backed securities and structured    financial products		25,003		79		(125	)		24,957		—		—		—			—
Total	$	2,339,562	$	20,164	$	(14,304	)	$	2,345,422	$	1,187,818	$	13,504	$	(5,955	)	$	1,195,367

9

During 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, 2016, the net unamortized, unrealized loss on the transferred securities included in accumulated other comprehensive loss in the accompanying balance sheet totaled approximately $25.7 million ($15.8 million, net of tax).

Temporarily Impaired Securities

The tables below include securities with gross unrealized losses segregated by length of impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	Less than 12 Months					12 Months or More					Total
September 30, 2016	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Government agency obligations
Issued by U.S. Government agencies	$	10,548	$	(86	)	$	30,728	$	(421	)	$	41,276	$	(507	)
Obligations of states and political subdivisions		7,495		(13	)		969		(2	)		8,464		(15	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		9,072		(50	)		249		(4	)		9,321		(54	)
Issued by FNMA and FHLMC		100,191		(166	)		—		—			100,191		(166	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		72,256		(154	)		98,118		(998	)		170,374		(1,152	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		10,512		(21	)		5,815		(108	)		16,327		(129	)
Total	$	210,074	$	(490	)	$	135,879	$	(1,533	)	$	345,953	$	(2,023	)
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	18,924	$	(81	)	$	30,591	$	(653	)	$	49,515	$	(734	)
Obligations of states and political subdivisions		4,289		(12	)		2,842		(20	)		7,131		(32	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		20,300		(222	)		1,863		(16	)		22,163		(238	)
Issued by FNMA and FHLMC		82,177		(313	)		—		—			82,177		(313	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		1,135,533		(8,832	)		238,152		(6,929	)		1,373,685		(15,761	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		238,668		(2,902	)		11,090		(154	)		249,758		(3,056	)
Asset-backed securities and structured financial    products		6,778		(125	)		—		—			6,778		(125	)
Total	$	1,506,669	$	(12,487	)	$	284,538	$	(7,772	)	$	1,791,207	$	(20,259	)

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, 2016.  There were no other-than-temporary impairments for the three and nine months ended September 30, 2016 and 2015.

10

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 for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Available for Sale	2016		2015		2016			2015
Proceeds from calls and sales of securities	$	—	$	—	$	24,693		$	—
Gross realized gains		—		—		32			—
Gross realized (losses)		—		—		(342	)		—

Realized gains and losses are determined using the specific identification method and are included in noninterest income as security losses, net.

Securities Pledged

Securities with a carrying value of $1.826 billion and $2.157 billion at September 30, 2016 and December 31, 2015, respectively, were pledged to collateralize public deposits and securities sold under repurchase agreements and for other purposes as permitted by law.  At both September 30, 2016 and December 31, 2015, none of these securities were pledged under the Federal Reserve Discount Window program to provide additional contingency funding capacity.  

Contractual Maturities

The amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2016, 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 Available for Sale				Securities Held to Maturity
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	32,173	$	32,377	$	5,845	$	5,845
Due after one year through five years		99,840		103,180		27,025		28,099
Due after five years through ten years		8,263		8,332		23,703		25,577
Due after ten years		39,725		39,269		—		—
		180,001		183,158		56,573		59,521
Mortgage-backed securities		2,192,719		2,227,789		1,086,661		1,113,580
Total	$	2,372,720	$	2,410,947	$	1,143,234	$	1,173,101

Note 3 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI

At September 30, 2016 and December 31, 2015, LHFI consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Loans secured by real estate:
Construction, land development and other land	$	766,685	$	824,723
Secured by 1-4 family residential properties		1,592,453		1,649,501
Secured by nonfarm, nonresidential properties		1,916,153		1,736,476
Other real estate secured		317,680		211,228
Commercial and industrial loans		1,421,382		1,343,211
Consumer loans		170,073		169,135
State and other political subdivision loans		875,973		734,615
Other loans		438,805		422,496
LHFI		7,499,204		7,091,385
Less allowance for loan losses, LHFI		70,871		67,619
Net LHFI	$	7,428,333	$	7,023,766

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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, 2016, 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 is susceptible to changes in market conditions in these areas.

Nonaccrual/Impaired LHFI

At September 30, 2016 and December 31, 2015, the carrying amounts of nonaccrual LHFI were $54.4 million and $55.3 million, respectively.  Included in these amounts were $3.7 million and $7.4 million, respectively, of nonaccrual LHFI classified as troubled debt restructurings (TDRs).  No material interest income was recognized in the income statement on nonaccrual LHFI for each of the periods ended September 30, 2016 and 2015.

Trustmark considers all nonaccrual LHFI to be impaired loans.  All commercial nonaccrual LHFI (including those classified as TDRs) over $500 thousand are specifically evaluated for impairment (specifically evaluated impaired LHFI) using a fair value approach.  The remaining nonaccrual LHFI, which primarily consist of consumer loans secured by 1-4 family residential property, are not specifically reviewed.  Consumer loans secured by 1-4 family residential property are generally charged off or written down when the credit becomes severely delinquent and the balance exceeds the fair value of the property less costs to sell.

At September 30, 2016 and December 31, 2015, specifically evaluated impaired LHFI totaled $28.6 million and $26.5 million, respectively.  Trustmark’s specifically evaluated impaired LHFI are primarily collateral dependent loans.  Fair value estimates for collateral dependent loans are derived from appraised values based on the current market value or as is value of the collateral, 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 collateral’s net realizable value is charged off.  Charge-offs related to specifically evaluated impaired LHFI totaled $5.0 million and $9.7 million for the first nine months of 2016 and 2015, respectively.  As subsequent events dictate and estimated net realizable values decline, required reserves may be established or further adjustments recorded.  At September 30, 2016 and December 31, 2015, reserves related to specifically evaluated impaired LHFI totaled $4.5 million and $7.0 million, respectively.  Provision recapture on specifically evaluated impaired LHFI totaled $2.0 million for the first nine months of 2016 compared to provision expense of $4.5 million for the first nine months of 2015.

At September 30, 2016 and December 31, 2015, impaired LHFI, excluding the specifically evaluated impaired LHFI, totaled $25.8 million and $28.8 million, respectively.  In addition, these impaired LHFI had allocated allowance for loan losses of $2.3 million and $2.0 million at the end of the respective periods.  No material interest income was recognized in the income statement on impaired LHFI for each of the periods ended September 30, 2016 and 2015.

The following tables detail LHFI individually and collectively evaluated for impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	4,724	$	761,961	$	766,685
Secured by 1-4 family residential properties		20,107		1,572,346		1,592,453
Secured by nonfarm, nonresidential properties		10,313		1,905,840		1,916,153
Other real estate secured		1,731		315,949		317,680
Commercial and industrial loans		16,525		1,404,857		1,421,382
Consumer loans		189		169,884		170,073
State and other political subdivision loans		—		875,973		875,973
Other loans		821		437,984		438,805
Total	$	54,410	$	7,444,794	$	7,499,204

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	December 31, 2015
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	6,123	$	818,600	$	824,723
Secured by 1-4 family residential properties		23,079		1,626,422		1,649,501
Secured by nonfarm, nonresidential properties		17,800		1,718,676		1,736,476
Other real estate secured		145		211,083		211,228
Commercial and industrial loans		7,622		1,335,589		1,343,211
Consumer loans		31		169,104		169,135
State and other political subdivision loans		—		734,615		734,615
Other loans		512		421,984		422,496
Total	$	55,312	$	7,036,073	$	7,091,385

At September 30, 2016 and December 31, 2015, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):

	September 30, 2016
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	8,186	$	3,113	$	1,611	$	4,724	$	453	$	5,424
Secured by 1-4 family residential properties		25,160		495		19,612		20,107		1,514		21,593
Secured by nonfarm, nonresidential properties		11,633		1,312		9,001		10,313		2,316		14,058
Other real estate secured		1,782		1,000		731		1,731		90		938
Commercial and industrial loans		18,203		12,055		4,470		16,525		2,305		12,073
Consumer loans		193		—		189		189		2		111
State and other political subdivision loans		—		—		—		—		—		—
Other loans		966		—		821		821		154		667
Total	$	66,123	$	17,975	$	36,435	$	54,410	$	6,834	$	54,864

	December 31, 2015
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	11,113	$	3,395	$	2,728	$	6,123	$	909	$	9,995
Secured by 1-4 family residential properties		27,678		283		22,796		23,079		1,230		24,350
Secured by nonfarm, nonresidential properties		20,387		8,037		9,763		17,800		3,402		21,758
Other real estate secured		160		—		145		145		15		732
Commercial and industrial loans		9,880		1,137		6,485		7,622		3,304		9,863
Consumer loans		34		—		31		31		—		59
State and other political subdivision loans		—		—		—		—		—		—
Other loans		642		—		512		512		128		570
Total	$	69,894	$	12,852	$	42,460	$	55,312	$	8,988	$	67,327

A 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 collectability 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.

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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.  At September 30, 2016 and December 31, 2015, Trustmark held $880 thousand and $1.0 million, respectively, of foreclosed residential real estate as a result of foreclosure or in substance repossession of consumer mortgage LHFI classified as TDRs.  There were no consumer mortgage LHFI classified as TDRs in the process of formal foreclosure proceedings at September 30, 2016 compared to $83 thousand at December 31, 2015.

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, 2016 and 2015, LHFI classified as TDRs totaled $3.7 million and $11.2 million, respectively, and were comprised of credits with interest-only payments for an extended period of time which totaled $1.6 million and $7.5 million, respectively.  The remaining TDRs at September 30, 2016 and 2015 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 $31 thousand and $1.2 million at September 30, 2016 and 2015, respectively.  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 for the nine months ended September 30, 2016 were $ 1.0 million compared to $806 thousand for the nine months ended September 30, 2015. 

The following tables illustrate the impact of modifications classified as TDRs as well as those TDRs modified within the last 12 months for which there was a payment default during the period for the periods presented ($ in thousands):

	Three Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Loans secured by 1-4 family residential properties		—	$	—	$	—		2	$	35	$	35

	Nine Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Construction, land development and other land loans		1	$	14	$	14		—	$	—	$	—
Loans secured by 1-4 family residential properties		8		740		740		10		495		495
Loans secured by nonfarm, nonresidential properties		—		—		—		4		3,512		3,512
Consumer loans		1		2		2		—		—		—
Total		10	$	756	$	756		14	$	4,007	$	4,007

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	Nine Months Ended September 30,
	2016				2015
TDRs that Subsequently Defaulted	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Loans secured by 1-4 family residential properties		1	$	101		4	$	243

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 at September 30, 2016 and 2015 ($ in thousands):

	September 30, 2016
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	556	$	556
Secured by 1-4 family residential properties		—		2,545		2,545
Secured by nonfarm, nonresidential properties		—		179		179
Commercial and industrial loans		—		387		387
Consumer loans		—		2		2
Total TDRs	$	—	$	3,669	$	3,669

	September 30, 2015
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	1,006	$	1,006
Secured by 1-4 family residential properties		1,385		2,921		4,306
Secured by nonfarm, nonresidential properties		819		4,503		5,322
Other real estate secured		—		62		62
Commercial and industrial loans		—		477		477
Total TDRs	$	2,204	$	8,969	$	11,173

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 primarily composed of 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, underwriting, collateral documentation and compliance with 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.

• Underwriting – evaluates whether credits are adequately analyzed, appropriately structured and properly approved within loan policy requirements.  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.

15

• Collateral Documentation – focuses on the adequacy of documentation to perfect Trustmark’s collateral position and substantiate collateral value.  Collateral exceptions measure the level of documentation exceptions within a loan portfolio.  Collateral exceptions occur when certain collateral documentation is either not present, is not considered current or has expired.

• 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 (Special Mention) - (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 special mention (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.

Each commercial loan is assigned a credit risk grade that is an indication for the likelihood of default and is not a direct indication of loss at default.  The loss at default 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 loss at default aspects of the risk rating system, the loss expectations for each risk rating are integrated into the allowance for loan loss methodology where the calculated loss at default is allotted for each individual risk rating with respect to the individual loan group and unique geographic area.  The loss at default 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 charged off within the period that the loss is determined and are not carried on Trustmark’s books over quarter-end.

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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 review 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 TDRs.  Quarterly, the Credit Quality Review Committee reviews and modifies continuous action plans for all credits risk rated seven or worse for relationships of $100 thousand or more.  In addition, the following reviews are performed on an annual basis:

• Residential real estate developments - a development project analysis is performed on all projects regardless of size.  Performance of the development is assessed through an evaluation of the number of lots remaining, payout ratios, and loan-to-value ratios.  This analysis is reviewed by each senior credit officer for the respective market to determine the need for any risk rate or accrual status changes.

• Non-owner occupied commercial real estate - a cash flow analysis is performed on all projects with an outstanding balance of $1.0 million or more.  Confirmation is obtained that guarantor financial statements are current, taxes have been paid and there are no other issues that need to be addressed.  This analysis is reviewed by each senior credit officer in the respective market to determine the need for any risk rate or accrual status changes.

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 ensure that Trustmark continues to originate quality loans. 

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 tables below illustrate the carrying amount of LHFI by credit quality indicator at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	687,123	$	8,494	$	9,410	$	469	$	705,496
Secured by 1-4 family residential    properties			124,472		467		6,262		361		131,562
Secured by nonfarm, nonresidential    properties			1,870,036		3,196		41,668		494		1,915,394
Other real estate secured			314,858		—		1,957		—		316,815
Commercial and industrial loans			1,304,137		9,094		107,405		746		1,421,382
Consumer loans			—		—		—		—		—
State and other political subdivision loans			858,168		6,450		11,355		—		875,973
Other loans			429,403		340		2,232		642		432,617
Total		$	5,588,197	$	28,041	$	180,289	$	2,712	$	5,799,239

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	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	60,546	$	176	$	—	$	467	$	61,189	$	766,685
Secured by 1-4 family residential    properties		1,435,347		8,173		717		16,654		1,460,891		1,592,453
Secured by nonfarm, nonresidential    properties		759		—		—		—		759		1,916,153
Other real estate secured		865		—		—		—		865		317,680
Commercial and industrial loans		—		—		—		—		—		1,421,382
Consumer loans		167,817		1,845		218		193		170,073		170,073
State and other political subdivision loans		—		—		—		—		—		875,973
Other loans		6,188		—		—		—		6,188		438,805
Total	$	1,671,522	$	10,194	$	935	$	17,314	$	1,699,965	$	7,499,204

	December 31, 2015
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard- Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	746,227	$	—	$	15,637	$	529	$	762,393
Secured by 1-4 family residential    properties			125,268		345		7,525		190		133,328
Secured by nonfarm, nonresidential    properties			1,680,846		2,031		52,485		361		1,735,723
Other real estate secured			205,097		—		4,768		—		209,865
Commercial and industrial loans			1,295,760		9,473		37,284		694		1,343,211
Consumer loans			—		—		—		—		—
State and other political subdivision loans			713,616		12,478		8,521		—		734,615
Other loans			414,089		183		2,663		375		417,310
Total		$	5,180,903	$	24,510	$	128,883	$	2,149	$	5,336,445

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	62,158	$	146	$	—	$	26	$	62,330	$	824,723
Secured by 1-4 family residential    properties		1,485,914		7,565		2,058		20,636		1,516,173		1,649,501
Secured by nonfarm, nonresidential    properties		753		—		—		—		753		1,736,476
Other real estate secured		1,363		—		—		—		1,363		211,228
Commercial and industrial loans		—		—		—		—		—		1,343,211
Consumer loans		166,681		2,182		242		30		169,135		169,135
State and other political subdivision loans		—		—		—		—		—		734,615
Other loans		5,186		—		—		—		5,186		422,496
Total	$	1,722,055	$	9,893	$	2,300	$	20,692	$	1,754,940	$	7,091,385

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Past Due LHFI

The following tables provide an aging analysis of past due and nonaccrual LHFI by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	1,136	$	78	$	—	$	1,214	$	4,724	$	760,747	$	766,685
Secured by 1-4 family residential properties		6,801		1,803		717		9,321		20,107		1,563,025		1,592,453
Secured by nonfarm, nonresidential    properties		576		—		18		594		10,313		1,905,246		1,916,153
Other real estate secured		144		—		—		144		1,731		315,805		317,680
Commercial and industrial loans		868		180		—		1,048		16,525		1,403,809		1,421,382
Consumer loans		1,465		380		218		2,063		189		167,821		170,073
State and other political subdivision loans		—		—		—		—		—		875,973		875,973
Other loans		147		2		—		149		821		437,835		438,805
Total	$	11,137	$	2,443	$	953	$	14,533	$	54,410	$	7,430,261	$	7,499,204

(1) Past due 90 days or more but still accruing interest.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	214	$	—	$	—	$	214	$	6,123	$	818,386	$	824,723
Secured by 1-4 family residential properties		6,203		1,800		2,058		10,061		23,079		1,616,361		1,649,501
Secured by nonfarm, nonresidential    properties		437		88		—		525		17,800		1,718,151		1,736,476
Other real estate secured		—		—		—		—		145		211,083		211,228
Commercial and industrial loans		921		45		—		966		7,622		1,334,623		1,343,211
Consumer loans		1,835		347		242		2,424		31		166,680		169,135
State and other political subdivision loans		65		—		—		65		—		734,550		734,615
Other loans		68		—		—		68		512		421,916		422,496
Total	$	9,743	$	2,280	$	2,300	$	14,323	$	55,312	$	7,021,750	$	7,091,385

(1) Past due 90 days or more but still accruing interest.

Past Due Loans Held for Sale (LHFS)

LHFS past due 90 days or more totaled $25.6 million and $21.8 million at September 30, 2016 and December 31, 2015, 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.

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During the first quarter of 2015, Trustmark exercised its option to repurchase approximately $28.5 million of 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 subject to guarantees 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 $304 thousand, which is included in mortgage banking, net for 2015.  Trustmark did not exercise its buy-back option on any delinquent loans serviced for GNMA during the first nine months of 2016.

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

• Loan facility risk

• Acquisitions

• Catastrophe

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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 within each key market region.

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

• 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 four 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 four qualitative factors include the following:

• Economic indicators

• Performance trends

• Management experience

• 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.

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 five loan pools.

Trustmark’s loan policy dictates the guidelines to be followed in determining when a loan is charged off.  Commercial purpose loans are charged off when a determination is made that the loan is uncollectible and continuance as a bankable asset is not warranted or an impairment evaluation indicates that a value adjustment is necessary.  Consumer loans secured by 1-4 family residential real estate are generally charged off or written down when the credit becomes severely delinquent and the balance exceeds the fair value of the property less costs to sell.  Non-real estate consumer purpose loans, both secured and unsecured, are generally charged off in full during the month in which the loan becomes 120 days past due.  Credit card loans are generally charged off in full when the loan becomes 180 days past due.

Changes in the allowance for loan losses, LHFI were as follows for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Balance at beginning of period	$	71,796		$	71,166		$	67,619		$	69,616
Loans charged-off		(8,279	)		(11,406	)		(14,893	)		(18,688	)
Recoveries		3,070			3,333			9,022			9,347
Net charge-offs		(5,209	)		(8,073	)		(5,871	)		(9,341	)
Provision for loan losses, LHFI		4,284			2,514			9,123			5,332
Balance at end of period	$	70,871		$	65,607		$	70,871		$	65,607

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The following tables detail the balance in the allowance for loan losses, LHFI by loan type at September 30, 2016 and 2015 ($ in thousands):

	2016
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land	$	11,587	$	(212	)	$	1,006	$	(3,183	)	$	9,198
Secured by 1-4 family residential properties		10,678		(1,129	)		680		172			10,401
Secured by nonfarm, nonresidential properties		21,563		(1,662	)		823		1,479			22,203
Other real estate secured		2,467		—			5		(213	)		2,259
Commercial and industrial loans		15,815		(6,408	)		519		10,982			20,908
Consumer loans		2,879		(1,398	)		3,397		(1,851	)		3,027
State and other political subdivision loans		809		—			—		68			877
Other loans		1,821		(4,084	)		2,592		1,669			1,998
Total allowance for loan losses, LHFI	$	67,619	$	(14,893	)	$	9,022	$	9,123		$	70,871

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	453	$	8,745	$	9,198
Secured by 1-4 family residential properties		1,514		8,887		10,401
Secured by nonfarm, nonresidential properties		2,316		19,887		22,203
Other real estate secured		90		2,169		2,259
Commercial and industrial loans		2,305		18,603		20,908
Consumer loans		2		3,025		3,027
State and other political subdivision loans		—		877		877
Other loans		154		1,844		1,998
Total allowance for loan losses, LHFI	$	6,834	$	64,037	$	70,871

	2015
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land loans	$	13,073	$	(2,236	)	$	1,274	$	395		$	12,506
Secured by 1-4 family residential properties		9,677		(2,013	)		781		1,529			9,974
Secured by nonfarm, nonresidential properties		18,523		(1,282	)		397		(1,517	)		16,121
Other real estate secured		2,141		(24	)		6		(382	)		1,741
Commercial and industrial loans		19,917		(7,243	)		1,553		5,109			19,336
Consumer loans		2,149		(1,543	)		2,639		(1,166	)		2,079
State and other political subdivision loans		1,314		—			—		(624	)		690
Other loans		2,822		(4,347	)		2,697		1,988			3,160
Total allowance for loan losses, LHFI	$	69,616	$	(18,688	)	$	9,347	$	5,332		$	65,607

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land loans	$	2,054	$	10,452	$	12,506
Secured by 1-4 family residential properties		267		9,707		9,974
Secured by nonfarm, nonresidential properties		2,602		13,519		16,121
Other real estate secured		28		1,713		1,741
Commercial and industrial loans		2,956		16,380		19,336
Consumer loans		—		2,079		2,079
State and other political subdivision loans		—		690		690
Other loans		200		2,960		3,160
Total allowance for loan losses, LHFI	$	8,107	$	57,500	$	65,607

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Note 4 – Acquired Loans

At September 30, 2016 and December 31, 2015, acquired loans consisted of the following ($ in thousands):

	September 30, 2016				December 31, 2015
	Noncovered		Covered (1)		Noncovered		Covered
Loans secured by real estate:
Construction, land development and other land	$	25,040	$	—	$	41,623	$	1,021
Secured by 1-4 family residential properties		72,689		3,912		86,950		10,058
Secured by nonfarm, nonresidential properties		110,606		—		135,626		4,638
Other real estate secured		20,903		—		23,860		1,286
Commercial and industrial loans		39,519		—		55,075		624
Consumer loans		3,878		—		5,641		—
Other loans		19,190		—		23,936		73
Acquired loans		291,825		3,912		372,711		17,700
Less allowance for loan losses, acquired loans		11,330		50		11,259		733
Net acquired loans	$	280,495	$	3,862	$	361,452	$	16,967

(1) Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

The following table presents changes in the net carrying value of the acquired loans for the periods presented ($ in thousands):

	Noncovered						Covered
	Acquired Impaired			Acquired Not ASC 310-30 (1)			Acquired Impaired			Acquired Not ASC 310-30 (1)
Carrying value, net at January 1, 2015	$	434,151		$	81,091		$	20,504		$	1,604
Accretion to interest income		28,193			479			2,308			—
Payments received, net		(164,671	)		(15,484	)		(8,592	)		(33	)
Other (2)		(1,589	)		—			391			—
Less change in allowance for loan losses, acquired loans		(718	)		—			785			—
Carrying value, net at December 31, 2015		295,366			66,086			15,396			1,571
Transfers (3)		9,157			446			(9,157	)		(446	)
Accretion to interest income		13,498			40			853			—
Payments received, net		(75,875	)		(28,861	)		(4,203	)		(421	)
Other (2)		709			—			(414	)		—
Less change in allowance for loan losses, acquired loans		(523	)		452			1,137			(454	)
Carrying value, net at September 30, 2016	$	242,332		$	38,163		$	3,612		$	250

(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, "Loans and Debt Securities Acquired with Deteriorated Credit Quality."

(2) Includes miscellaneous timing adjustments as well as acquired loan terminations through foreclosure, charge-off and other terminations.

(3) Covered acquired loans transferred to noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

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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 periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Accretable yield at beginning of period	$	(52,672	)	$	(77,149	)
Accretion to interest income		14,351			24,907
Disposals		4,306			8,194
Reclassification from nonaccretable difference (1)		(7,046	)		(12,215	)
Accretable yield at end of period	$	(41,061	)	$	(56,263	)

(1) 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 periods presented ($ in thousands):

	Three Months Ended September 30, 2016									Nine Months Ended September 30, 2016
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	12,218		$	262		$	12,480		$	11,259		$	733		$	11,992
Transfers (1)		215			(215	)		—			215			(215	)		—
Provision for loan losses, acquired loans		686			5			691			2,969			(362	)		2,607
Loans charged-off		(2,590	)		—			(2,590	)		(4,959	)		(82	)		(5,041	)
Recoveries		801			(2	)		799			1,846			(24	)		1,822
Net charge-offs		(1,789	)		(2	)		(1,791	)		(3,113	)		(106	)		(3,219	)
Balance at end of period	$	11,330		$	50		$	11,380		$	11,330		$	50		$	11,380

	Three Months Ended September 30, 2015									Nine Months Ended September 30, 2015
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	11,927		$	702		$	12,629		$	10,541		$	1,518		$	12,059
Provision for loan losses, acquired loans		1,221			35			1,256			2,797			(369	)		2,428
Loans charged-off		(2,456	)		(110	)		(2,566	)		(5,024	)		(560	)		(5,584	)
Recoveries		725			141			866			3,103			179			3,282
Net (charge-offs) recoveries		(1,731	)		31			(1,700	)		(1,921	)		(381	)		(2,302	)
Balance at end of period	$	11,417		$	768		$	12,185		$	11,417		$	768		$	12,185

(1) The allowance for loan losses on covered acquired loans other than loans secured by 1-4 family residential properties transferred to the allowance for loan losses on noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

As discussed in Note 3 - 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.

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The tables below illustrate the carrying amount of acquired loans by credit quality indicator at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	14,624	$	117	$	7,900	$	322	$	22,963
Secured by 1-4 family    residential properties			17,629		56		4,249		310		22,244
Secured by nonfarm,    nonresidential properties			88,799		1,071		20,167		516		110,553
Other real estate secured			16,313		—		3,482		673		20,468
Commercial and industrial loans			23,860		23		14,230		1,406		39,519
Consumer loans			—		—		—		—		—
Other loans			13,361		—		5,665		162		19,188
Total noncovered loans			174,586		1,267		55,693		3,389		234,935
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			—		—		—		—		—
Secured by 1-4 family    residential properties			185		12		60		—		257
Secured by nonfarm,    nonresidential properties			—		—		—		—		—
Other real estate secured			—		—		—		—		—
Commercial and industrial loans			—		—		—		—		—
Other loans			—		—		—		—		—
Total covered loans			185		12		60		—		257
Total acquired loans		$	174,771	$	1,279	$	55,753	$	3,389	$	235,192

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	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,066	$	3	$	8	$	—	$	2,077	$	25,040
Secured by 1-4 family    residential properties		47,666		1,783		902		94		50,445		72,689
Secured by nonfarm,    nonresidential properties		53		—		—		—		53		110,606
Other real estate secured		435		—		—		—		435		20,903
Commercial and industrial loans		—		—		—		—		—		39,519
Consumer loans		3,825		48		5		—		3,878		3,878
Other loans		2		—		—		—		2		19,190
Total noncovered loans		54,047		1,834		915		94		56,890		291,825
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—
Secured by 1-4 family    residential properties		3,311		136		208		—		3,655		3,912
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—
Other loans		—		—		—		—		—		—
Total covered loans		3,311		136		208		—		3,655		3,912
Total acquired loans	$	57,358	$	1,970	$	1,123	$	94	$	60,545	$	295,737

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

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	December 31, 2015
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	15,839	$	253	$	19,252	$	3,874	$	39,218
Secured by 1-4 family    residential properties			22,272		27		5,033		331		27,663
Secured by nonfarm,    nonresidential properties			106,924		2,301		25,690		711		135,626
Other real estate secured			19,346		—		3,777		731		23,854
Commercial and industrial loans			36,670		844		15,526		2,035		55,075
Consumer loans			—		—		—		—		—
Other loans			17,150		—		6,624		162		23,936
Total noncovered loans			218,201		3,425		75,902		7,844		305,372
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			235		—		588		119		942
Secured by 1-4 family    residential properties			869		107		534		—		1,510
Secured by nonfarm,    nonresidential properties			4,060		35		472		—		4,567
Other real estate secured			730		—		111		—		841
Commercial and industrial loans			560		22		42		—		624
Other loans			70		—		—		—		70
Total covered loans			6,524		164		1,747		119		8,554
Total acquired loans		$	224,725	$	3,589	$	77,649	$	7,963	$	313,926

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	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,353	$	24	$	28	$	—	$	2,405	$	41,623
Secured by 1-4 family    residential properties		56,371		1,841		930		145		59,287		86,950
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		135,626
Other real estate secured		6		—		—		—		6		23,860
Commercial and industrial loans		—		—		—		—		—		55,075
Consumer loans		5,498		142		1		—		5,641		5,641
Other loans		—		—		—		—		—		23,936
Total noncovered loans		64,228		2,007		959		145		67,339		372,711
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		70		9		—		—		79		1,021
Secured by 1-4 family    residential properties		7,472		314		762		—		8,548		10,058
Secured by nonfarm,    nonresidential properties		71		—		—		—		71		4,638
Other real estate secured		445		—		—		—		445		1,286
Commercial and industrial loans		—		—		—		—		—		624
Other loans		3		—		—		—		3		73
Total covered loans		8,061		323		762		—		9,146		17,700
Total acquired loans	$	72,289	$	2,330	$	1,721	$	145	$	76,485	$	390,411

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

At September 30, 2016 and December 31, 2015, there were no acquired impaired loans accounted for under FASB ASC Topic 310-30 classified as nonaccrual loans.  At September 30, 2016, approximately $653 thousand of acquired loans not accounted for under FASB ASC Topic 310-30 were classified as nonaccrual loans, compared to approximately $1.0 million of acquired loans at December 31, 2015.

28

The following tables provide an aging analysis of contractually past due and nonaccrual acquired loans, by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development    and other land	$	203	$	12	$	889	$	1,104	$	—	$	23,936	$	25,040
Secured by 1-4 family residential    properties		1,679		333		934		2,946		112		69,631		72,689
Secured by nonfarm, nonresidential    properties		225		32		857		1,114		338		109,154		110,606
Other real estate secured		112		—		1,458		1,570		—		19,333		20,903
Commercial and industrial loans		832		33		1		866		203		38,450		39,519
Consumer loans		48		—		5		53		—		3,825		3,878
Other loans		—		—		—		—		—		19,190		19,190
Total noncovered loans		3,099		410		4,144		7,653		653		283,519		291,825
Covered loans:
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—		—
Secured by 1-4 family residential    properties		55		81		208		344		—		3,568		3,912
Secured by nonfarm, nonresidential    properties		—		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—		—
Other loans		—		—		—		—		—		—		—
Total covered loans		55		81		208		344		—		3,568		3,912
Total acquired loans	$	3,154	$	491	$	4,352	$	7,997	$	653	$	287,087	$	295,737

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

29

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development and    other land	$	24	$	114	$	13,021	$	13,159	$	—	$	28,464	$	41,623
Secured by 1-4 family residential    properties		1,544		636		1,220		3,400		387		83,163		86,950
Secured by nonfarm, nonresidential    properties		192		195		5,913		6,300		144		129,182		135,626
Other real estate secured		9		—		737		746		—		23,114		23,860
Commercial and industrial loans		82		4		184		270		429		54,376		55,075
Consumer loans		119		23		1		143		—		5,498		5,641
Other loans		85		16		—		101		—		23,835		23,936
Total noncovered loans		2,055		988		21,076		24,119		960		347,632		372,711
Covered loans:
Loans secured by real estate:
Construction, land development and    other land		9		—		119		128		—		893		1,021
Secured by 1-4 family residential    properties		428		132		978		1,538		—		8,520		10,058
Secured by nonfarm, nonresidential    properties		167		478		—		645		—		3,993		4,638
Other real estate secured		—		—		—		—		—		1,286		1,286
Commercial and industrial loans		—		—		—		—		51		573		624
Other loans		—		—		—		—		—		73		73
Total covered loans		604		610		1,097		2,311		51		15,338		17,700
Total acquired loans	$	2,659	$	1,598	$	22,173	$	26,430	$	1,011	$	362,970	$	390,411

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

Note 5 – Mortgage Banking

The activity in the mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	74,007		$	64,358
Origination of servicing assets		12,392			13,320
Change in fair value:
Due to market changes		(13,518	)		(433	)
Due to run-off		(7,367	)		(7,436	)
Balance at end of period	$	65,514		$	69,809

30

During the first nine months of 2016 and 2015, Trustmark sold $1.016 billion and $930.5 million, respectively, of residential mortgage loans.  Pretax gains on these sales were recorded to noninterest income in mortgage banking, net and totaled $14.5 million for the first nine months of 2016 compared to $13.3 million for the first nine months of 2015.  The table below details the mortgage loans sold and serviced for others at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Federal National Mortgage Association	$	3,933,746	$	3,750,685
Government National Mortgage Association		2,238,400		2,111,797
Federal Home Loan Mortgage Corporation		58,236		67,817
Other		34,214		41,013
Total mortgage loans sold and serviced for others	$	6,264,596	$	5,971,312

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 FNMA and FHLMC will not exercise their remedies, including a putback request, for breaches of certain 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 incurred by Trustmark during the first nine months of 2016 were $315 thousand compared to $210 thousand during the same time period in 2015.

Changes in the reserve for mortgage loan servicing putback expense for mortgage loans delivered to FNMA in periods not covered by the November 2013 Resolution Agreement between Trustmark and FNMA and to other entities were as follows for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,685		$	1,170
Provision for putback expenses		315			210
(Losses) gains		(944	)		211
Balance at end of period	$	1,056		$	1,591

There is inherent uncertainty in reasonably estimating the requirement for reserves against potential 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.

Note 6 –Other Real Estate and Covered Other Real Estate

Other Real Estate, excluding Covered Other Real Estate

At September 30, 2016, 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.

31

For the periods presented, changes and gains, net on other real estate, excluding covered other real estate, were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	77,177		$	92,509
Additions		21,972			26,832
Disposals		(30,494	)		(33,015	)
Write-downs		(3,662	)		(2,371	)
Balance at end of period	$	64,993		$	83,955
Gain, net on the sale of other real estate included in    other real estate expense	$	5,350		$	2,116

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	38,345	$	47,550
1-4 family residential properties		8,037		10,732
Nonfarm, nonresidential properties		18,611		16,717
Other real estate properties		—		2,178
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by geographic location consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Alabama	$	15,574	$	21,578
Florida		25,147		29,579
Mississippi (1)		16,659		14,312
Tennessee (2)		6,061		9,974
Texas		1,552		1,734
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

(1) Mississippi includes Central and Southern Mississippi Regions

(2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions

32

Covered Other Real Estate

On July 1, 2016, $388 thousand of covered other real estate was transferred to other real estate, excluding covered other real estate, as a result of the expiration of a loss-share agreement with the FDIC on June 30, 2016.  As of September 30, 2016, Trustmark had no covered other real estate.  The remaining loss-share agreement with the FDIC, which covers loans secured by 1-4 family residential properties, will expire in 2021.  Should a loan covered by the remaining loss-share agreement be foreclosed, the related property will be classified as covered other real estate.

For the periods presented, changes and gains (losses), net on covered other real estate were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,651		$	6,060
Transfers from covered loans		456			266
FASB ASC 310-30 adjustment for the residual recorded    investment		(12	)		(902	)
Net transfers from covered loans		444			(636	)
Disposals		(1,679	)		(1,404	)
Transfers to noncovered other real estate		(388	)		—
Write-downs		(28	)		(1,155	)
Balance at end of period	$	—		$	2,865
Gain (loss), net on the sale of covered other real estate included in    other real estate expense	$	801		$	(54	)

At September 30, 2016 and December 31, 2015, covered other real estate by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	—	$	638
1-4 family residential properties		—		223
Nonfarm, nonresidential properties		—		399
Other real estate properties		—		391
Total covered other real estate	$	—	$	1,651

Note 7 – Deposits

At September 30, 2016 and December 31, 2015, deposits consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Noninterest-bearing demand	$	3,111,603	$	2,998,694
Interest-bearing demand		1,783,655		1,938,497
Savings		3,133,286		2,970,997
Time		1,657,157		1,680,042
Total	$	9,685,701	$	9,588,230

Note 8 – Securities Sold Under Repurchase Agreements

Trustmark utilizes securities sold under repurchase agreements as a source of borrowing in connection with overnight repurchase agreements offered to commercial deposit customers by using its unencumbered investment securities as collateral.  Trustmark accounts for its securities sold under repurchase agreements as secured borrowings in accordance with FASB ASC Topic 860-30, “Transfers and Servicing – Secured Borrowing and Collateral.”  Securities sold under repurchase agreements are stated at the amount of cash received in connection with the transaction.  Trustmark monitors collateral levels on a continual basis and may be required to provide additional collateral based on the fair value of the underlying securities.  Trustmark’s repurchase agreements are transacted under master repurchase agreements that give Trustmark, in the event of default by the counterparty, the right of offset with the same counterparty.  As of September 30, 2016, all repurchase agreements were short-term and consisted primarily of sweep repurchase arrangements, under which excess deposits are “swept” into overnight repurchase agreements with Trustmark.  The following table presents the securities sold under repurchase agreements by collateral pledged at September 30, 2016 and December 31, 2015 ($ in thousands):

33

	September 30, 2016		December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government sponsored agencies	$	—	$	22,516
Mortgage-backed securities
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		122,865		102,604
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		41,067		—
Total securities sold under repurchase agreements	$	163,932	$	125,120

Note 9 – Defined Benefit and Other Postretirement Benefits

Qualified Pension Plans

Trustmark maintains a noncontributory tax-qualified defined benefit pension plan (Trustmark Capital Accumulation Plan, the “Plan”), in which substantially all associates who began employment 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.  Benefit accruals under the plan have been frozen since 2009, with the exception of certain associates covered through plans obtained in acquisitions that were subsequently merged into the Plan.  Other than the associates covered through these acquired plans that were merged into the Plan, associates have not earned additional benefits, except for interest as required by law, since the Plan was frozen.  Current and former associates who participate in the Plan retain their right to receive benefits that accrued before the Plan was frozen.

On July 26, 2016, the Board of Directors of Trustmark authorized the termination of the Plan, effective as of December 31, 2016. To satisfy commitments made by Trustmark to associates (collectively, the “Continuing Associates”) covered through acquired plans that were merged into the Plan, the Board also approved the spin-off of the portion of the Plan associated with the accrued benefits of the Continuing Associates into a new plan titled the Trustmark Corporation Pension Plan for Certain Employees of Acquired Financial Institutions (the “Spin-Off Plan”), effective as of December 31, 2016, immediately prior to the termination of the Plan.    

In order to terminate the Plan, in accordance with Internal Revenue Service and Pension Benefit Guaranty Corporation requirements, Trustmark is required to fully fund the Plan on a termination basis and will contribute the additional assets necessary to do so. The final distributions will be made from current plan assets and a one-time pension settlement expense will be recognized when paid by Trustmark during the second quarter of 2017.  Further, as a result of Trustmark’s de-risking investment strategy for the Plan as of June 30, 2016, the expected rate of return on plan assets during the second half of 2016 will decrease from 6.0% to 2.5%.  Accordingly, Trustmark's increased periodic benefit costs for the Plan during the third quarter of 2016 was $664 thousand.  Participants in the Plan will have a choice of receiving a lump sum cash payment or annuity payments under a group annuity contract purchased from an insurance carrier, subject to certain exceptions. As a result of the termination of the Plan, each participant will become fully vested in his or her accrued benefits under the Plan.   

The Board reserved the right to defer or revoke the termination of the Plan if circumstances change such that deferral or revocation would be warranted, but has no intent to do so at this time.

The following table presents information regarding the net periodic benefit cost for the Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Service cost	$	106		$	127		$	322		$	387
Interest cost		847			867			2,507			2,593
Expected return on plan assets		(426	)		(1,297	)		(2,470	)		(3,890	)
Recognized net loss due to lump sum settlements		463			603			3,134			1,499
Recognized net actuarial loss		714			969			2,035			2,907
Net periodic benefit cost	$	1,704		$	1,269		$	5,528		$	3,496

34

The range of potential contributions to the Plan is determined annually by the Plan’s 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 do not exceed the maximum that is deductible for federal income tax purposes.  The actual amount of the contribution is determined annually based on the Plan’s funded status and return on plan assets as of the measurement date, which is December 31.  For the plan year ending December 31, 2016, Trustmark’s minimum required contribution to the Plan is expected to be zero; however, Management and the Board of Directors of Trustmark will monitor the Plan throughout 2016 to determine any additional funding requirements by the Plan’s measurement date.

Supplemental Retirement Plans

Trustmark maintains a nonqualified supplemental retirement plan covering key executive officers and senior officers as well as directors who have elected to defer fees.  The plan provides for retirement and/or death benefits based on a participant’s covered salary or deferred fees.  Although plan benefits may be paid from Trustmark’s general assets, Trustmark has purchased life insurance contracts on the participants covered under the plan, which may be used to fund future benefit payments under the plan.  The measurement date for the plan is December 31.  As a result of the BancTrust merger on February 15, 2013, Trustmark became the administrator of an additional nonqualified supplemental retirement plan, for which the plan benefits were frozen prior to the merger date.

The following table presents information regarding the 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,
	2016		2015		2016		2015
Service cost	$	73	$	107	$	221	$	323
Interest cost		542		520		1,630		1,563
Amortization of prior service cost		63		63		188		188
Recognized net actuarial loss		214		246		649		745
Net periodic benefit cost	$	892	$	936	$	2,688	$	2,819

Note 10 – Stock and Incentive Compensation Plans

Trustmark has granted stock and incentive compensation awards subject to the provisions of the Stock and Incentive Compensation Plan (the Stock Plan).  Current outstanding and future grants of stock and incentive compensation awards are subject to the provisions of the Stock Plan, which is designed to provide flexibility to Trustmark regarding its ability to motivate, attract and retain the services of key associates and directors.  The Stock Plan also allows Trustmark to grant nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units and performance units to key associates and directors.

Restricted Stock Grants

Performance Awards

Trustmark’s performance awards vest over three years and are granted to Trustmark’s executive and senior management teams.  Performance awards granted vest based on performance goals of return on average tangible equity and total shareholder return 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 vest over three years and are granted to members of Trustmark’s Board of Directors as well as Trustmark’s executive and senior management teams.  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.

35

The following table summarizes the Stock Plan activity for the periods presented:

	Three Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		239,006			327,197
Granted		—			2,000
Released from restriction		(1,587	)		(3,379	)
Forfeited		(283	)		(917	)
Nonvested shares, end of period		237,136			324,901

	Nine Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		212,309			306,657
Granted		99,116			139,291
Released from restriction		(40,888	)		(105,717	)
Forfeited		(33,401	)		(15,330	)
Nonvested shares, end of period		237,136			324,901

The following table presents information regarding compensation expense for awards under the Stock Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Performance awards	$	382	$	319	$	789	$	883
Time-vested awards		559		638		1,952		1,855
Total compensation expense	$	941	$	957	$	2,741	$	2,738

Note 11 – 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, 2016 and 2015, Trustmark had unused commitments to extend credit of $3.110 billion and $2.724 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, 2016 and 2015, Trustmark’s maximum exposure to credit loss in the event of nonperformance by the other party for letters of credit was $113.5 million and $132.2 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, 2016 and 2015, the fair value of collateral held was $27.7 million and $31.7 million, respectively.

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Legal Proceedings

Trustmark’s wholly-owned subsidiary, TNB, has been named as a defendant in three 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 (collectively, Class Plaintiffs), 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.  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 a second 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.  In March 2015, the court entered an order authorizing the parties to conduct discovery regarding class certification and setting a deadline for the parties to complete briefing on class certification issues.  In April 2015, the court granted in part and denied in part the defendants’ motions to dismiss the Class Plaintiffs’ claims and the OSIC’s claims.  The court dismissed all of the Class Plaintiffs’ fraudulent transfer claims and dismissed certain of the OSIC’s claims.  The court denied the motions by TNB and the other financial institution defendants to dismiss the OSIC’s constructive fraudulent transfer claims.  

On June 23, 2015, the court allowed the Class Plaintiffs to file a Second Amended Class Action Complaint (SAC), which asserted new claims against TNB and certain of the other defendants for (i) aiding, abetting and participating in a fraudulent scheme, (ii) aiding, abetting and participating in violations of the Texas Securities Act, (iii) aiding, abetting and participating in breaches of fiduciary duty, (iv) aiding, abetting and participating in conversion and (v) conspiracy.  On July 14, 2015, the defendants (including TNB) filed motions to dismiss the SAC and to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims against TNB and the other financial institutions that are defendants in the action.  On July 27, 2016, the court denied the motion by TNB and the other financial institution defendants to dismiss the SAC and also denied the motion by TNB and the other financial institution defendants to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims.  On August 24, 2016, TNB filed its answer to the SAC.

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.

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On April 11, 2016, Trustmark learned that a third Stanford-related lawsuit had been filed on April 11, 2016 in the Superior Court of Justice in Ontario, Canada, by The Toronto-Dominion Bank (“TD Bank”), naming TNB and three other financial institutions not affiliated with Trustmark as defendants.  The complaint seeks a declaration specifying the degree to which each of TNB and the other defendants are liable in respect of any loss and damage for which TD Bank is found to be liable in a litigation commenced against TD Bank brought by the Joint Liquidators of Stanford International Bank Limited in the Superior Court of Justice, Commercial List in Ontario, Canada (the “Joint Liquidators’ Action”), as well as contribution and indemnity in respect of any judgment, interest and costs TD Bank is ordered to pay in the Joint Liquidators’ Action.  To date, TNB has not been served in connection with this action.

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.  All Stanford-related lawsuits are in pre-trial stages.

TNB has been named as a defendant in two separately filed but now consolidated lawsuits involving two testamentary trusts created in the will of Kathleen Killebrew Paine for her two children, Carolyn Paine Davis and W.K. Paine.  TNB is named as the Trustee in both trusts.  The lawsuits were filed on June 30, 2014 in the Chancery Court of the First Judicial District of Hinds County, Mississippi by Jennifer Davis Michael, Elizabeth Paine Lindigrin, Wilmer Harrison Paine, Kenneth Whitworth Paine, Robert Harvey Paine and Nathan Davis, who are all children of Mrs. Davis and Mr. Paine.  The complaints allege that the plaintiffs are vested current beneficiaries of the respective trusts; that the plaintiffs should have been entitled to be considered for distributions of trust income; and that the interests of Mrs. Davis and Mr. Paine were favored over plaintiffs’ interest in both the distribution of income and in the making of trust investments.  Plaintiffs seek compensatory damages, refund of trust fees and sweep fees, punitive damages, attorneys’ fees and pre- and post-judgment interest.  On March 9, 2015, the court granted TNB’s motion to add Mrs. Davis and Mr. W.K. Paine as cross-defendants.  Following a bench trial that concluded on January 20, 2016, the judge ordered the parties to enter into mandatory mediation.  On February 22, 2016, the mediator reported to the judge that the mediation had failed to resolve the matter.  All post-trial briefings have been completed by the parties and submitted to the court.  The judge will consider those submissions and then enter a ruling on the case at some point in the future.

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 accordance FASB ASC Topic 450-20, “Loss Contingencies,” Trustmark will establish an accrued liability for litigation matters when those matters present loss contingencies that are both probable and reasonably estimable.  At the present time, Trustmark believes, based on its evaluation and the advice of legal counsel, that a loss in any such proceeding is not both probable and reasonably estimable.

Note 12 – 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,
	2016		2015		2016		2015
Basic shares		67,625		67,557		67,618		67,547
Dilutive shares		168		150		153		130
Diluted shares		67,793		67,707		67,771		67,677

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,
	2016		2015		2016		2015
Weighted-average antidilutive stock awards		—		1		2		1

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Note 13 – Statements of Cash Flows

The following table reflects specific transaction amounts for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016		2015
Income taxes paid	$	24,646	$	15,291
Interest expense paid on deposits and borrowings		17,132		14,639
Noncash transfers from loans to other real estate (1)		21,972		26,196

(1) Includes transfers from covered loans to covered other real estate.

Note 14 – Shareholders’ Equity

Regulatory Capital

Trustmark and TNB are subject to minimum risk-based capital and leverage capital requirements, as described in the section captioned “Capital Adequacy” included in Part I. Item 1. – Business of Trustmark’s 2015 Annual Report on Form 10-K, 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.  Effective January 1, 2016, Trustmark’s and TNB’s minimum risk-based capital requirements include the year-one phased in capital conservation buffer of 0.625%.  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 and limit Trustmark’s and TNB’s ability to pay dividends.  As of September 30, 2016, Trustmark and TNB exceeded all applicable minimum capital standards.  In addition, Trustmark and TNB met applicable regulatory guidelines to be considered well-capitalized at September 30, 2016.  To be categorized in this manner, Trustmark and TNB maintained minimum common equity Tier 1 risk-based capital, Tier 1 risk-based capital, total risk-based capital and Tier 1 leverage ratios as set forth in the accompanying table, and were not subject to any written agreement, order or capital directive, or prompt corrective action directive issued by their primary federal regulators to meet and maintain a specific capital level for any capital measures.  There are no significant conditions or events that have occurred since September 30, 2016, which Management believes have affected Trustmark’s or TNB’s present classification.

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The following table provides Trustmark’s and TNB’s actual regulatory capital amounts and ratios under regulatory capital standards in effect at September 30, 2016 and December 31, 2015 ($ in thousands):

	Actual
	Regulatory Capital					Minimum			To Be Well
	Amount		Ratio			Requirement			Capitalized
At September 30, 2016:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,194,729		12.35	%		5.125	%	n/a
Trustmark National Bank		1,235,923		12.78	%		5.125	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,254,453		12.97	%		6.625	%	n/a
Trustmark National Bank		1,235,923		12.78	%		6.625	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,336,704		13.82	%		8.625	%	n/a
Trustmark National Bank		1,318,174		13.63	%		8.625	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,254,453		9.92	%		4.00	%	n/a
Trustmark National Bank		1,235,923		9.79	%		4.00	%		5.00	%
At December 31, 2015:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,161,598		12.57	%		4.50	%	n/a
Trustmark National Bank		1,201,113		13.00	%		4.50	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,220,535		13.21	%		6.00	%	n/a
Trustmark National Bank		1,201,113		13.00	%		6.00	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,300,146		14.07	%		8.00	%	n/a
Trustmark National Bank		1,280,724		13.86	%		8.00	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,220,535		10.03	%		4.00	%	n/a
Trustmark National Bank		1,201,113		9.89	%		4.00	%		5.00	%

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Stock Repurchase Program

On March 11, 2016, the Board of Directors of Trustmark authorized a stock repurchase program under which $100.0 million of Trustmark’s outstanding common stock may be acquired through March 31, 2019.  The shares may be purchased from time to time at prevailing market prices, through open market or privately negotiated transactions, depending on market conditions.  Trustmark did not repurchase any shares of its common stock during the three months ended September 30, 2016.  Trustmark repurchased approximately 34 thousand shares of its common stock during the nine months ended September 30, 2016.

Other Comprehensive Income and Accumulated Other Comprehensive Loss

The following table presents the components of accumulated other comprehensive loss and the related tax effects allocated to each component for the three and nine months ended September 30, 2016 and 2015 ($ in thousands).  Reclassification adjustments related to securities available for sale are included in security losses, net in the accompanying consolidated statements of income.  The amortization of prior service cost, recognized net loss due to lump sum settlements and change in net actuarial loss on pension and other postretirement benefit plans are included in the computation of net periodic benefit cost (see Note 9 – Defined Benefit and Other Postretirement Benefits for additional details).  Reclassification adjustments related to pension and other postretirement benefit plans are included in salaries and employee benefits in the accompanying consolidated statements of income.  Reclassification adjustments related to the cash flow hedge derivative are included in other interest expense in the accompanying consolidated statements of income.

	Three Months Ended September 30, 2016									Three Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding (losses) gains arising during    the period	$	(12,657	)	$	4,841		$	(7,816	)	$	17,872		$	(6,837	)	$	11,035
Reclassification adjustment for net losses realized    in net income		—			—			—			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		2,677			(1,024	)		1,653			1,678			(642	)		1,036
Total securities available for sale    and transferred securities		(9,980	)		3,817			(6,163	)		19,550			(7,479	)		12,071
Pension and other postretirement benefit plans:
Net change in prior service costs		63			(24	)		39			63			(24	)		39
Recognized net loss due to lump sum settlements		463			(177	)		286			603			(230	)		373
Change in net actuarial loss		928			(355	)		573			1,216			(465	)		751
Reclassification related to net losses realized    in net income		1,454			(556	)		898			1,882			(719	)		1,163
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		417			(160	)		257			(1,216	)		465			(751	)
Reclassification adjustment for loss realized    in net income		157			(60	)		97			211			(81	)		130
Total cash flow hedge derivatives		574			(220	)		354			(1,005	)		384			(621	)
Total other comprehensive (loss) income	$	(7,952	)	$	3,041		$	(4,911	)	$	20,427		$	(7,814	)	$	12,613

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	Nine Months Ended September 30, 2016									Nine Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding gains arising during    the period	$	32,057		$	(12,261	)	$	19,796		$	13,718		$	(5,248	)	$	8,470
Reclassification adjustment for net losses realized    in net income		310			(119	)		191			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		8,374			(3,203	)		5,171			4,747			(1,816	)		2,931
Total securities available for sale    and transferred securities		40,741			(15,583	)		25,158			18,465			(7,064	)		11,401
Pension and other postretirement benefit plans:
Net change in prior service costs		188			(72	)		116			188			(72	)		116
Recognized net loss due to lump sum settlements		3,134			(1,199	)		1,935			1,499			(573	)		926
Change in net actuarial loss		2,684			(1,026	)		1,658			3,653			(1,397	)		2,256
Reclassification related to net losses realized    in net income		6,006			(2,297	)		3,709			5,340			(2,042	)		3,298
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		(1,360	)		520			(840	)		(1,919	)		734			(1,185	)
Reclassification adjustment for loss realized    in net income		473			(181	)		292			632			(242	)		390
Total cash flow hedge derivatives		(887	)		339			(548	)		(1,287	)		492			(795	)
Total other comprehensive income	$	45,860		$	(17,541	)	$	28,319		$	22,518		$	(8,614	)	$	13,904

The following table presents the changes in the balances of each component of accumulated other comprehensive loss for the periods presented ($ in thousands).  All amounts are presented net of tax.

	Securities Availablefor Sale and Transferred Securities			Defined Benefit Pension Items			Cash Flow Hedge Derivatives			Total
Balance at January 1, 2016	$	(17,394	)	$	(27,840	)	$	(160	)	$	(45,394	)
Other comprehensive income (loss) before reclassification		24,967			—			(840	)		24,127
Amounts reclassified from accumulated other    comprehensive loss		191			3,709			292			4,192
Net other comprehensive income (loss)		25,158			3,709			(548	)		28,319
Balance at September 30, 2016	$	7,764		$	(24,131	)	$	(708	)	$	(17,075	)
Balance at January 1, 2015	$	(11,003	)	$	(31,617	)	$	136		$	(42,484	)
Other comprehensive (loss) income before reclassification		11,401			3,298			(1,185	)		13,514
Amounts reclassified from accumulated other    comprehensive loss		—			—			390			390
Net other comprehensive income (loss)		11,401			3,298			(795	)		13,904
Balance at September 30, 2015	$	398		$	(28,319	)	$	(659	)	$	(28,580	)

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Note 15 – 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 the 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 the 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.

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Financial Assets and Liabilities

The following tables summarize financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015, 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, 2016 and the year ended December 31, 2015.

	September 30, 2016
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	58,517	$	—		$	58,517	$	—
Obligations of states and political subdivisions		124,641		—			124,641		—
Mortgage-backed securities		2,227,789		—			2,227,789		—
Securities available for sale		2,410,947		—			2,410,947		—
Loans held for sale		242,097		—			242,097		—
Mortgage servicing rights		65,514		—			—		65,514
Other assets - derivatives		7,901		(25	)		5,179		2,747
Other liabilities - derivatives		8,583		808			7,775		—

	December 31, 2015
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	68,416	$	—		$	68,416	$	—
Obligations of states and political subdivisions		138,609		—			138,609		—
Mortgage-backed securities		2,113,440		—			2,113,440		—
Asset-backed securities and structured financial products		24,957		—			24,957		—
Securities available for sale		2,345,422		—			2,345,422		—
Loans held for sale		160,189		—			160,189		—
Mortgage servicing rights		74,007		—			—		74,007
Other assets - derivatives		3,611		(149	)		2,647		1,113
Other liabilities - derivatives		3,929		1,220			2,709		—

The changes in Level 3 assets measured at fair value on a recurring basis for the nine months ended September 30, 2016 and 2015 are summarized as follows ($ in thousands):

	MSR			Other Assets - Derivatives
Balance, January 1, 2016	$	74,007		$	1,113
Total net (loss) gain included in Mortgage banking, net (1)		(20,885	)		9,486
Additions		12,392			—
Sales		—			(7,852	)
Balance, September 30, 2016	$	65,514		$	2,747
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, 2016	$	(13,519	)	$	904
Balance, January 1, 2015	$	64,358		$	1,299
Total net (loss) gain included in Mortgage banking, net (1)		(7,869	)		6,193
Additions		13,320			—
Sales		—			(4,786	)
Balance, September 30, 2015	$	69,809		$	2,706
The amount of total losses for the period included in    earnings that are attributable to the change in unrealized    gains or losses still held at September 30, 2015	$	(433	)	$	(169	)

(1) Total net (loss) gain included in Mortgage banking, net relating to the MSR includes changes in fair value due to market changes and due to run-off.

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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, 2016, 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.  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.  Impaired LHFI are primarily collateral dependent loans and are assessed using a fair value approach.  Fair value estimates for collateral dependent loans are derived from 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, 2016, Trustmark had outstanding balances of $28.6 million in impaired LHFI that were specifically identified for evaluation and written down to the fair value of the underlying collateral less cost to sell based on the fair value of the collateral or other unobservable input compared to $26.5 million at December 31, 2015.  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.

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.  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, 2016, 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 $22.0 million (utilizing Level 3 valuation inputs) during the nine months ended September 30, 2016 compared with $26.8 million for the same period in 2015.  In connection with the measurement and initial recognition of the foregoing foreclosed assets, Trustmark recognized charge-offs of the allowance for loan losses totaling $19.8 million and $7.4 million for the first nine months of 2016 and 2015, respectively.  Other than foreclosed assets measured at fair value upon initial recognition, $26.5 million of foreclosed assets were remeasured during the first nine months of 2016, requiring write-downs of $3.7 million to reach their current fair values compared to $39.4 million of foreclosed assets that were remeasured during the first nine months of 2015, requiring write-downs of $2.4 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 Annual Report on Form 10-K for the year ended December 31, 2015.

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The carrying amounts and estimated fair values of financial instruments at September 30, 2016 and December 31, 2015, are as follows ($ in thousands):

	September 30, 2016				December 31, 2015
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Level 2 Inputs:
Cash and short-term investments	$	384,445	$	384,445	$	278,001	$	278,001
Securities held to maturity		1,143,234		1,173,101		1,187,818		1,195,367
Level 3 Inputs:
Net LHFI		7,428,333		7,493,082		7,023,766		7,136,105
Net acquired loans		284,357		284,357		378,419		378,419
FDIC indemnification asset		—		—		738		738
Financial Liabilities:
Level 2 Inputs:
Deposits		9,685,701		9,689,282		9,588,230		9,592,531
Short-term liabilities		927,710		927,710		853,659		853,659
Long-term FHLB advances		751,075		751,077		501,155		501,160
Subordinated notes		49,993		50,484		49,969		51,405
Junior subordinated debt securities		61,856		40,825		61,856		49,021

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 necessarily be 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, 2016 and December 31, 2015.

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Fair Value Option

Trustmark has elected to account for its mortgage LHFS purchased or originated on or after October 1, 2014 under the fair value option, with interest income on these mortgage LHFS reported in interest and fees on LHFS and LHFI.  The fair value of the mortgage LHFS is determined using quoted prices for a similar asset, adjusted for specific attributes of that loan.  The mortgage LHFS are actively managed and monitored and certain market risks of the loans may be mitigated through the use of derivatives.  These derivative instruments are carried at fair value with changes in fair value recorded in noninterest income in mortgage banking, net.  The changes in the fair value of the LHFS are largely offset by changes in the fair value of the derivative instruments.  For the three and nine months ended September 30, 2016, a net loss of $1.1 million and a net gain of $2.6 million, respectively, was recorded in noninterest income in mortgage banking, net for changes in the fair value of the LHFS accounted for under the fair value option, compared to a net gain of $3.6 million and $1.7 million for the three and nine months ended September 30, 2015, respectively.  Interest and fees on LHFS and LHFI for the three and nine months ended September 30, 2016 included $1.5 million and $3.7 million, respectively, of interest earned on the LHFS accounted for under the fair value option, compared to $1.4 million and $3.7 million for the same time periods in 2015.  Election of the fair value option allows Trustmark to reduce the accounting volatility that would otherwise result from the asymmetry created by accounting for the financial instruments at the lower of cost or fair value and the derivatives at fair value.  The fair value option election does not apply to the GNMA optional repurchase loans which do not meet the requirements under FASB ASC Topic 825 to be accounted for under the fair value option.  GNMA optional repurchase loans totaled $37.3 million and $36.0 million at September 30, 2016 and December 31, 2015, respectively, and are included in LHFS on the accompanying consolidated balance sheets.

The following table provides information about the fair value and the contractual principal outstanding of the LHFS accounted for under the fair value option as of September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Fair value of LHFS	$	204,839	$	124,165
LHFS contractual principal outstanding		198,288		121,608
Fair value less unpaid principal	$	6,551	$	2,557

Note 16 – Derivative Financial Instruments

Derivatives Designated as Hedging Instruments

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, “Derivatives and Hedging,” 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, which became effective 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 for the nine months ended September 30, 2016 and 2015.  The accumulated net after-tax loss related to the effective cash flow hedge included in accumulated other comprehensive loss totaled $708 thousand and $160 thousand at September 30, 2016 and December 31, 2015, respectively.  Amounts reported in accumulated other comprehensive loss related to this derivative are reclassified to other interest expense as interest payments are made on Trustmark’s variable rate junior subordinated debentures.  During the next twelve months, Trustmark estimates that $442 thousand will be reclassified as an increase to other interest expense.

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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 the MSR attributable to interest rates.  These transactions are considered freestanding derivatives that do not otherwise qualify for hedge accounting.  The total notional amount of these derivative instruments were $338.5 million at September 30, 2016 compared to $264.5 million at December 31, 2015.  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 the MSR.  The impact of this strategy resulted in a net negative ineffectiveness of $1.2 million compared to a net positive ineffectiveness of $479 thousand for the three months ended September 30, 2016 and 2015, respectively.  For the nine months ended September 30, 2016 and 2015, the impact was a net negative ineffectiveness of $2.7 million compared to a net positive ineffectiveness of $3.9 million, respectively.

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.  Changes in the fair value of these derivative instruments are recorded in noninterest income in mortgage banking, net and are offset by changes in the fair value of LHFS.  Trustmark’s off-balance sheet obligations under these derivative instruments totaled $301.5 million at September 30, 2016, with a negative valuation adjustment of $1.2 million, compared to $190.5 million, with a positive valuation adjustment of $262 thousand as of December 31, 2015.

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 $195.7 million at September 30, 2016, with a positive valuation adjustment of $2.7 million, compared to $108.1 million, with a positive valuation adjustment of $1.1 million as of December 31, 2015.

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.  Derivatives 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, 2016, Trustmark had interest rate swaps with an aggregate notional amount of $350.3 million related to this program, compared to $359.3 million as of December 31, 2015.

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 derivatives obligations.

As of September 30, 2016 and December 31, 2015, 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 $5.9 million and $2.6 million, respectively.  As of September 30, 2016, Trustmark had posted collateral of $5.8 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, 2016, 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.  At both September 30, 2016 and December 31, 2015, Trustmark had entered into two risk participation agreements as a beneficiary with an aggregate notional amount of $14.3 million and $14.8 million, respectively.  At September 30, 2016, Trustmark had entered into five risk participation agreements as a guarantor with an aggregate notional amount of $28.6 million compared to one risk participation agreement as a guarantor with an aggregate notional amount of $5.9 million at December 31, 2015.  The aggregate fair values of these risk participation agreements were immaterial at September 30, 2016 and December 31, 2015.

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Tabular Disclosures

The following tables disclose the fair value of derivative instruments in Trustmark’s balance sheets as of September 30, 2016 and December 31, 2015 as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):

	September 30, 2016			December 31, 2015
Derivatives in hedging relationships
Interest rate contracts:
Interest rate swaps included in other assets	$	(1,147	)	$	(259	)
Derivatives not designated as hedging instruments
Interest rate contracts:
Futures contracts included in other assets	$	(199	)	$	(207	)
Exchange traded purchased options included in other assets		174			58
OTC written options (rate locks) included in other assets		2,747			1,113
Interest rate swaps included in other assets		6,298			2,888
Credit risk participation agreements included in other assets		28			18
Forward contracts included in other liabilities		1,170			(262	)
Exchange traded written options included in other liabilities		808			1,220
Interest rate swaps included in other liabilities		6,570			2,954
Credit risk participation agreements included in other liabilities		35			17

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Derivatives in hedging relationships
Amount of loss reclassified from accumulated other    comprehensive loss and recognized in other interest expense	$	(157	)	$	(211	)	$	(473	)	$	(632	)
Derivatives not designated as hedging instruments
Amount of (loss) gain recognized in mortgage banking, net	$	(688	)	$	1,265		$	11,042		$	4,221
Amount of gain (loss) recognized in bank card and other fees		1			(128	)		(206	)		(94	)

The following table discloses the amount included in other comprehensive income (loss), net of tax, for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
Derivatives in cash flow hedging relationship
Amount of gain (loss) recognized in other comprehensive    income (loss), net of tax	$	257	$	(751	)	$	(840	)	$	(1,185	)

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, 2016 and December 31, 2015 is presented in the following tables ($ in thousands):

Offsetting of Derivative Assets
As of September 30, 2016
							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	$	5,151	$	—	$	5,151	$	—	$	—	$	5,151

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Offsetting of Derivative Liabilities
As of September 30, 2016
							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	$	6,570	$	—	$	6,570	$	—	$	(4,932	)	$	1,638

Offsetting of Derivative Assets
As of December 31, 2015
							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	$	2,629	$	—	$	2,629	$	—	$	—	$	2,629

Offsetting of Derivative Liabilities
As of December 31, 2015
							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	$	2,954	$	—	$	2,954	$	—	$	(1,195	)	$	1,759

Note 17 – Segment Information

Trustmark’s management reporting structure includes three segments: General Banking, Wealth Management and Insurance.  For a complete overview of Trustmark’s operating segments, see Note 21 – Segment Information included in Part II. Item 8. – Financial Statements and Supplementary Data, of Trustmark’s 2015 Annual Report on Form 10-K.  There have been no significant changes in Trustmark’s operating segments during the periods presented.

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 TNB’s funding and interest rate risk strategies.

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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,
	2016		2015		2016		2015
General Banking
Net interest income	$	97,395	$	97,408	$	287,950	$	291,483
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		27,207		28,320		81,230		82,477
Noninterest expense		84,358		90,043		267,063		262,403
Income before income taxes		35,269		31,915		90,387		103,797
Income taxes		6,844		6,207		18,168		22,588
General banking net income	$	28,425	$	25,708	$	72,219	$	81,209
Selected Financial Information
Average assets	$	12,916,011	$	12,231,450	$	12,788,736	$	12,123,213
Depreciation and amortization	$	9,274	$	9,209	$	26,483	$	27,256
Wealth Management
Net interest income	$	119	$	91	$	571	$	194
Noninterest income		7,434		7,748		22,681		23,477
Noninterest expense		6,216		6,195		18,200		19,373
Income before income taxes		1,337		1,644		5,052		4,298
Income taxes		512		629		1,933		1,644
Wealth management net income	$	825	$	1,015	$	3,119	$	2,654
Selected Financial Information
Average assets	$	6,039	$	4,181	$	1,842	$	3,020
Depreciation and amortization	$	44	$	44	$	131	$	139
Insurance
Net interest income	$	50	$	107	$	160	$	270
Noninterest income		10,075		9,905		28,308		27,925
Noninterest expense		7,334		7,322		21,768		21,266
Income before income taxes		2,791		2,690		6,700		6,929
Income taxes		1,059		983		2,550		2,612
Insurance net income	$	1,732	$	1,707	$	4,150	$	4,317
Selected Financial Information
Average assets	$	78,167	$	78,146	$	63,652	$	58,570
Depreciation and amortization	$	186	$	213	$	569	$	600
Consolidated
Net interest income	$	97,564	$	97,606	$	288,681	$	291,947
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		44,716		45,973		132,219		133,879
Noninterest expense		97,908		103,560		307,031		303,042
Income before income taxes		39,397		36,249		102,139		115,024
Income taxes		8,415		7,819		22,651		26,844
Consolidated net income	$	30,982	$	28,430	$	79,488	$	88,180
Selected Financial Information
Average assets	$	13,000,217	$	12,313,777	$	12,854,230	$	12,184,803
Depreciation and amortization	$	9,504	$	9,466	$	27,183	$	27,995

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Note 18 – Accounting Policies Recently Adopted and Pending Accounting Pronouncements

ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” Issued in August 2016, ASU 2016-15 provides guidance to reduce the diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows.  The amendments of ASU 2016-15 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-15 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.”  Issued in June 2016, ASU 2016-13 will add FASB ASC Topic 326, “Financial Instruments-Credit Losses” and finalizes amendments to FASB ASC Subtopic 825-15, “Financial Instruments-Credit Losses.”  The amendments of ASU 2016-13 are intended to provide financial statement users with more decision-useful information related to expected credit losses on financial instruments and other commitments to extend credit by replacing the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to determine credit loss estimates.  The amendments of ASU 2016-13 eliminate the probable initial recognition threshold and, in turn, reflect an entity’s current estimate of all expected credit losses.  ASU 2016-13 does not specify the method for measuring expected credit losses, and an entity is allowed to apply methods that reasonably reflect its expectations of the credit loss estimate.  Additionally, the amendments of ASU 2016-13 require that credit losses on available for sale debt securities be presented as an allowance rather than as a write-down.  The amendments of ASU 2016-13 are effective for interim and annual periods beginning after December 15, 2019.  Earlier application is permitted for interim and annual periods beginning after December 15, 2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements.

ASU 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.”  Issued in March 2016, ASU 2016-09 seeks to reduce complexity in accounting standards by simplifying several aspects of the accounting for share-based payment transactions, including (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flow; (3) forfeitures; (4) minimum statutory tax withholding requirements; (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax withholding purposes; (6) the practical expedient for estimating the expected term; and (7) intrinsic value.  The amendments of ASU 2016-09 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-07, “Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting.” Issued in March 2016, ASU 2016-07 affects all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. ASU 2016-07 simplifies the transition to the equity method of accounting by eliminating the retroactive adjustment of the investment when an investment qualifies for use of the equity method, among other things.  The amendments of ASU 2016-07 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-07 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-05, “Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships.” Issued in March 2016, ASU 2016-05 clarifies that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under ASC Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met.  The amendments of ASU 2016-05 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-05 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-02, “Leases (Topic 842).”Issued in February 2016, ASU 2016-02 was issued by the FASB to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and by disclosing key information about leasing arrangements.  ASU 2016-02 will, among other things, require lessees to recognize a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 does not significantly change lease accounting requirements applicable to lessors; however, the ASU contains some targeted improvements that are intended to align, where necessary, lessor accounting with the lessee accounting model and with the updated revenue recognition guidance issued in 2014.  The amendments of ASU 2016-02 are effective for interim and annual periods beginning after December 15,

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2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-02 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-01, “Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (An Amendment of the FASB Accounting Standards Codification).”  Issued in January 2016, ASU 2016-01 is intended to enhance the reporting model for financial instruments to provide users of financial statements with improved decision-making information.  The amendments of ASU 2016-01 include: (i) requiring equity investments, except those accounted for under the equity method of accounting or those that result in the consolidation of an investee, to be measured at fair value with changes in fair value recognized in net income; (ii) requiring a qualitative assessment to identify impairment of equity investments without readily determinable fair values; and (iii) clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets.  The amendments of ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-01 is not expected to have a material impact on 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 a 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 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.  ASU 2015-14, “Revenue from Contracts with Customers (Topic 606)-Deferral of the Effective Date,” issued in August 2015, defers the effective date of ASU 2014-09 by one year.  ASU 2015-14 provides that the amendments of ASU 2014-09 become effective for interim and annual periods beginning after December 15, 2017.  Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period.  All subsequently issued ASUs which provide additional guidance and clarifications to various aspects of FASB ASC Topic 606 will become effective when the amendments of ASU 2014-09 become effective.  Management is currently evaluating the impact ASU 2014-09 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 2014-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following provides a narrative discussion and analysis of Trustmark Corporation’s (Trustmark) financial condition and results of operations.  This discussion should be read in conjunction with the unaudited consolidated financial statements and the supplemental financial data included in Part I. Item 1. – Financial Statements – of this report.

Description of Business

Trustmark, a Mississippi business corporation incorporated in 1968, is a bank holding company headquartered in Jackson, Mississippi.  Trustmark’s principal subsidiary is Trustmark National Bank (TNB), initially chartered by the State of Mississippi in 1889.  At September 30, 2016, TNB had total assets of $13.160 billion, which represented approximately 99.99% of the consolidated assets of Trustmark.

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Through TNB and its other subsidiaries, Trustmark operates as a financial services organization providing banking and other financial solutions through 194 offices and 2,787 full-time equivalent associates (measured at September 30, 2016) located in the states of Alabama (primarily in the central and southern regions of that state, which are collectively referred to herein as Trustmark’s Alabama market), Florida (primarily in the northwest or “Panhandle” region of that state, which is referred to herein as Trustmark’s Florida market), Mississippi, Tennessee (in the Memphis and Northern Mississippi regions, which are collectively referred to herein as Trustmark’s Tennessee market), and Texas (primarily in Houston, which is referred to herein as Trustmark’s Texas market).  Trustmark’s operations are managed along three operating segments: General Banking Division, Wealth Management Division and Insurance Division.  For a complete overview of Trustmark’s business, see the section captioned “The Corporation” included in Part I. Item 1. – Business of Trustmark’s 2015 Annual Report on Form 10-K.

Executive Overview

Trustmark continued to achieve solid financial results with total revenues of $142.3 million and $420.9 million for the three and nine months ended September 30, 2016, respectively.  Trustmark continued to maintain and expand customer relationships as reflected by growth across all five market regions in the loans held for investment (LHFI) portfolio, which increased $94.0 million, or 1.3%, during the third quarter of 2016 and $407.8 million, or 5.8%, during the first nine months of 2016.  Credit quality remained strong and continued to be an important contributor to Trustmark’s financial success.  During the second quarter of 2016, Trustmark completed a voluntary early retirement program (ERP) as a proactive measure to manage noninterest expense.  As a result of the ERP, 188 of the eligible associates retired by June 30, 2016.  The ERP resulted in a one-time charge of $9.3 million to noninterest expense ($9.1 million included in salaries and employee benefits expense and $230 thousand included in other expense) during the second quarter of 2016.  As a result of the ERP, during the third quarter of 2016 Trustmark realized cost savings of $1.9 million in salaries and employee benefits expense and incurred additional pension expense of $236 thousand, which resulted from additional settlements from pension lump sum elections.  On July 26, 2016, the Board of Directors of Trustmark authorized the termination of the Trustmark Capital Accumulation Plan (the Plan), a noncontributory tax-qualified defined benefit pension plan, effective December 31, 2016.  During the third quarter of 2016, Trustmark incurred non-routine pension expense of $664 thousand as a result of the de-risking investment strategy for the plan assets implemented in anticipation of the Plan termination.  Trustmark reported net income of $31.0 million, or diluted earnings per share (EPS) of $0.46, and $79.5 million, or diluted EPS of $1.17, for the three and nine months ended September 30, 2016, respectively.  Excluding the non-routine expenses related to the ERP and the Plan termination, net income for the three and nine months ended September 30, 2016 totaled $31.5 million, or diluted EPS of $0.47, and $85.8 million, or diluted EPS of $1.27, respectively.  Trustmark is committed to investments to support profitable revenue growth as well as reengineering and efficiency opportunities to enhance shareholder value.  Trustmark’s capital position remained solid, reflecting the consistent profitability of its diversified financial services businesses.  Trustmark’s Board of Directors declared a quarterly cash dividend of $0.23 per share.  The dividend is payable December 15, 2016, to shareholders of record on December 1, 2016.

Recent Economic and Industry Developments

The economy showed moderate signs of improvement in the first nine months of 2016; however, economic concerns remain as a result of the cumulative weight of continued soft labor markets in the United States, volatility in crude oil prices and slowing growth in markets in Western Europe, Japan, China, Russia and other emerging markets, combined with uncertainty regarding anticipated further tightening of monetary policy by the Board of Governors of the Federal Reserve System (FRB), the consequences of the decision of the United Kingdom to exit the European Union, and the upcoming presidential election.  Doubts surrounding the near-term direction of global markets, and the potential impact of these trends on the United States economy, are expected to persist for some time.  While Trustmark’s customer base is wholly domestic, international economic conditions affect domestic economic conditions, and thus may have an impact upon Trustmark’s financial condition or results of operations.

In the October 2016 “Summary of Commentary on Current Economic Conditions by Federal Reserve Districts” (the “Beige Book”), the twelve Federal Reserve Districts’ reports suggested national economic activity continued to expand at a modest pace during the reporting period, and noted that labor market conditions remained tight with modest employment and wage growth; growth in lending activity and improvement in loan quality occurred, as well as improvements in both the residential and commercial real estate markets.  Reports by the twelve Federal Reserve Districts also noted that low prices continued to impact agricultural producers despite generally strong crop yields and that signs of stabilization continued in the oil and gas sector.  Reports by the three Federal Reserve Districts covering the southeast United States, which include Trustmark’s five key market regions, suggested that economic activity increased at a modest pace, with most businesses reporting improved sales and positive outlooks for the near term, with the exception of the energy sector.  The Federal Reserve’s Sixth District, Atlanta (which includes Trustmark’s Alabama, Florida and Mississippi market regions) and the Eighth District, St. Louis (which includes Trustmark’s Tennessee market region) also reported increased loan demand, improvements in residential and commercial real estate activity and increased construction.  However, the Federal Reserve’s Sixth District also reported inconsistency in commercial real estate growth, noting that the rate of improvement varied by metropolitan area, submarket, and property type.  The Federal Reserve’s Eleventh District, Dallas (which includes Trustmark’s Texas market region) reported that real estate activity was flat to up in most markets; loan demand was mixed while loan quality remained strong;

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depressed demand for oilfield services; and continued deterioration in the financial positions of many oil-related firms despite the increase in prices earlier in the year.

In December 2015, the FRB increased the target range for the federal funds rate for the first time in over seven years.  The FRB also indicated that it may further increase rates before the end of 2016 and on a gradual basis through 2017, depending on economic conditions.  It is not possible to predict the timing or amount of any such additional increases.  Low interest rates will continue to place pressure on net interest margins for Trustmark (as well as its competitors), as older, higher-yielding assets that mature or default can only be replaced with lower-yielding instruments.

Financial Highlights

Trustmark reported net income of $31.0 million, or basic and diluted EPS of $0.46, in the third quarter of 2016, compared to $28.4 million, or basic and diluted EPS of $0.42, in the third quarter of 2015.  The increase in net income when the third quarter of 2016 is compared to the same time period in 2015 was principally due to the decline in noninterest expense.  Noninterest expense for the third quarter of 2016 decreased $5.7 million when compared to the same time period in 2015, primarily due to declines in other real estate expense, resulting principally from higher gains on sales of other real estate and lower write-downs of other real estate, and cost savings realized in salaries and employee benefits expense as a result of the ERP.  Trustmark’s performance during the quarter ended September 30, 2016 produced a return on average tangible equity of 11.16%, a return on average assets of 0.95%, an average equity to average assets ratio of 11.78% and a dividend payout ratio of 50.00%, compared to a return on average tangible equity of 10.96%, a return on average assets of 0.92%, an average equity to average assets ratio of 11.93% and a dividend payout ratio of 54.76% during the quarter ended September 30, 2015.

Revenue, which is defined as net interest income plus noninterest income, totaled $142.3 million for the quarter ended September 30, 2016 compared to $143.6 million for the quarter ended September 30, 2015, a decrease of $1.3 million, or 0.9%.  The decrease in total revenue for the third quarter of 2016 was principally the result of declines in interest and fees on acquired loans and noninterest income as well as increases in interest expense, which were partially offset by increases in interest and fees on loans held for sale (LHFS) and LHFI.

Interest and fees on acquired loans decreased $4.8 million, or 41.6%, when the third quarter of 2016 is compared to the same time period in 2015, in accordance with prior expectations.  This was primarily due to a $2.9 million decline in recoveries from the settlement of debt and a $2.1 million decline in accretion income as acquired loans have continued to pay down as anticipated.  Noninterest income decreased $1.3 million, or 2.7%, when the third quarter of 2016 is compared to the same time period in 2015 as a result of slight declines in all categories of noninterest income with the exception of insurance commissions.  Interest expense for the three months ended September 30, 2016 increased $1.1 million, or 20.5%, when compared to the same time period in 2015 principally due to increased interest expense for advances from the Federal Home Loan Bank (FHLB) of Dallas and federal funds purchased as a result of higher balances of and increased interest rates for these funding sources.  Interest and fees on LHFS and LHFI increased $7.1 million, or 10.2%, when the third quarter of 2016 is compared to the same time period in 2015, primarily due to an increase in the LHFI portfolio.  LHFI totaled $7.499 billion at September 30, 2016, an increase of $707.6 million, or 10.4%, when compared to September 30, 2015, as a result of net growth across all of Trustmark’s market regions and all categories in its LHFI portfolio, with the exception of loans secured by 1-4 family residential properties and construction, land development and other land loans.

Trustmark’s provision for loan losses, LHFI for the three months ended September 30, 2016 totaled $4.3 million, an increase of $1.8 million, or 70.4%, when compared to a provision for loan losses, LHFI of $2.5 million for the three months ended September 30, 2015.  The increase in the provision for loan losses, LHFI for the third quarter of 2016 primarily reflects the net effect of revisions to the allowance for loan loss methodology for LHFI during 2015, growth in the LHFI portfolio and increased required reserves for commercial LHFI, partially offset by a decrease in net charge-offs of LHFI and a decline in the amount of specific reserve required for impaired LHFI, primarily in the Mississippi market region, when compared to the third quarter of 2015.  Please see the section captioned “Provision for Loan Losses, LHFI,” for additional information regarding the provision for loan losses, LHFI.  The provision for loan losses, acquired loans for the three months ended September 30, 2016 totaled $691 thousand, a decrease of $565 thousand, or 45.0%, when compared to the same time period in 2015.  Please see the section captioned “Provision for Loan Losses, Acquired Loans,” for additional information regarding the provision for loan losses, acquired loans.  In total, the provision for loan losses, net was $5.0 million for the third quarter of 2016, an increase of $1.2 million, or 32.0%, when compared to the same time period in 2015.

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Trustmark reported net income of $79.5 million, or basic and diluted EPS of $1.18 and $1.17, respectively, for the first nine months of 2016, compared to $88.2 million, or basic and diluted EPS of $1.31 and $1.30, respectively, for the first nine months of 2015.  The decline in net income when the first nine months of 2016 is compared to the same time period in 2015 was principally the result of the non-routine transaction expense resulting from the ERP, an increase in the provision for loan losses, LHFI and an increase in other interest expense related to FHLB advances with the FHLB of Dallas, which was partially offset by a decline in other real estate expense.  Trustmark’s performance during the nine months ended September 30, 2016 produced a return on average tangible equity of 9.85%, a return on average assets of 0.83%, an average equity to average assets ratio of 11.77% and a dividend payout ratio of 58.47%, compared to a return on average tangible equity of 11.62%, a return on average assets of 0.97%, an average equity to average assets ratio of 11.93% and a dividend payout ratio of 52.67% during the nine months ended September 30, 2015.

Revenue totaled $420.9 million for the first nine months of 2016 compared to $425.8 million for the same time period in 2015, a decrease of $4.9 million, or 1.2%.  The decrease in total revenue for the first nine months of 2016 was principally the result of declines in interest and fees on acquired loans, mortgage banking, net and service charges on deposit accounts and an increase in other interest expense, which were partially offset by increases in interest and fees on LHFS and LHFI and other income, net.

Interest and fees on acquired loans decreased $17.4 million, or 44.3%, when the first nine months of 2016 is compared to the same time period in 2015, primarily due to a $10.6 million decline in accretion income and a $6.3 million decline in recoveries from the settlement of debt as acquired loans have continued to pay down as anticipated.  Mortgage banking, net declined $3.1 million, or 12.0%, when the nine months ended September 30, 2016 is compared to the same time period in 2015, principally due to a net negative hedge ineffectiveness of $2.7 million in the first nine months of 2016 compared to a net positive hedge ineffectiveness of $3.9 million in the first nine months of 2015 partially offset by a $3.4 million increase in mortgage banking income.  Service charges on deposit accounts declined $1.6 million, or 4.5%, when the first nine months of 2016 is compared to the same time period in 2015, primarily due to a decrease in the number of occurrences resulting in a non-sufficient funds or overdraft charge.  Other interest expense increased $2.3 million, or 46.2%, when the first nine months of 2016 is compared to the same time period in 2015, primarily due to an increase in interest expense on FHLB advances with the FHLB of Dallas, which Trustmark uses as a liquidity source.  Trustmark had $350.0 million of outstanding short-term advances and $750.0 million of outstanding long-term advances from the FHLB of Dallas at September 30, 2016, compared to $650.0 million of outstanding short-term advances and no outstanding long-term advances at September 30, 2015.  Interest and fees on LHFS and LHFI increased $18.7 million, or 9.2%, when the first nine months of 2016 is compared to the same time period in 2015, primarily due to the $707.6 million increase in the LHFI portfolio.  Other income, net increased $3.6 million when the nine months ended September 30, 2016 is compared to the same time period in 2015, primarily reflecting a decrease in the net reduction of the FDIC indemnification asset related to the acquired covered loans and covered other real estate, a decrease in the net loss on the sale of premises and equipment due to a loss recorded during the first nine months of 2015 on the sale of a former bank branch acquired in the BancTrust merger and an increase in other miscellaneous income related to various vendor contract bonuses and settlements received during the second quarter of 2016 and a one-time arrangement fee received during the third quarter of 2016.

Trustmark’s provision for loan losses, LHFI for the nine months ended September 30, 2016 totaled $9.1 million, an increase of $3.8 million, or 71.1%, when compared to a provision for loan losses, LHFI of $5.3 million for the nine months ended September 30, 2015.  The increase in the provision for loan losses, LHFI for the first nine months of 2016 primarily reflects the net effect of revisions to the allowance for loan loss methodology for LHFI during 2015 and growth in the LHFI portfolio and an increase in the amount of reserves required related to commercial LHFI in the Mississippi, Texas and Alabama market regions, partially offset by decreases in the amount of charge-offs as well as specific reserves required related to impaired LHFI in the Mississippi market region when compared to the first nine months of 2015.  Please see the section captioned “Provision for Loan Losses, LHFI,” for additional information regarding the provision for loan losses, LHFI.  The provision for loan losses, acquired loans for the nine months ended September 30, 2016 totaled $2.6 million, an increase of $179 thousand, or 7.4%, when compared to the same time period in 2015.  Please see the section captioned “Provision for Loan Losses, Acquired Loans,” for additional information regarding the provision for loan losses, acquired loans.  In total, the provision for loan losses, net was $11.7 million for the first nine months of 2016, an increase of $4.0 million, or 51.2%, when compared to the same time period in 2015.

At September 30, 2016, nonperforming assets, excluding acquired loans and covered other real estate, totaled $119.4 million, a decrease of $13.1 million, or 9.9%, compared to December 31, 2015 primarily due to a decline in other real estate, excluding covered other real estate.  Total nonaccrual LHFI were $54.4 million at September 30, 2016, representing a decrease of $902 thousand, or 1.6%, relative to December 31, 2015, principally due to substandard credits that were paid off or foreclosed in the Mississippi market region, returned to accrual status in the Florida market region, and charged off in the Mississippi and Texas market regions partially offset by LHFI migrating to nonaccrual status in the Mississippi, Florida and Tennessee market regions during the first nine months of 2016.  Other real estate, excluding covered other real estate, declined $12.2 million, or 15.8%, during the first nine months of 2016 primarily due to properties sold in Trustmark’s Florida, Alabama, Mississippi and Tennessee market regions as well as write-downs of properties in Trustmark’s Mississippi, Alabama, and Tennessee market regions partially offset by properties foreclosed in the Florida, Mississippi, Alabama and Tennessee market regions.

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LHFI totaled $7.499 billion at September 30, 2016, an increase of $407.8 million, or 5.8%, compared to December 31, 2015.  The increase in LHFI during the first nine months of 2016 represented net growth across all five of Trustmark’s market regions, primarily in the loans secured by real estate, state and other political subdivision loans categories and commercial and industrial loans.  For additional information regarding changes in LHFI and comparative balances by loan category, see the section captioned “LHFI.”

While both classified and criticized LHFI balances remain at historically low levels and continue to reflect strong credit quality, both classified and criticized LHFI increased during the third quarter of 2016.  As of September 30, 2016, classified LHFI balances increased $39.8 million, or 24.3%, while criticized LHFI balances increased $33.1 million, or 16.7%, when compared to balances at September 30, 2015.  The increase in the volume of classified and criticized LHFI was primarily a result of downgrades to four energy related credits in the Texas and Mississippi market regions during the third quarter of 2016.  All four of these credits are performing loans.  The downgrades were identified during Trustmark’s ongoing quarterly assessment of its energy portfolio and have been reserved for appropriately.

Management has continued its practice of maintaining excess funding capacity to provide Trustmark with adequate liquidity for its ongoing operations.  In this regard, Trustmark benefits from its strong deposit base, its highly liquid investment portfolio and its access to funding from a variety of external funding sources such as upstream federal funds lines, FHLB advances and, on a limited basis, brokered deposits.

Total deposits were $9.686 billion at September 30, 2016, an increase of $97.5 million, or 1.0% compared to December 31, 2015.  During the first nine months of 2016, noninterest-bearing deposits increased $112.9 million, or 3.8%, primarily due to growth in commercial demand deposit accounts partially offset by seasonal declines in public demand deposit accounts, while interest-bearing deposits decreased $15.4 million, or 0.2%, primarily due to declines in interest-bearing demand deposit accounts and certificates of deposit.  The increase in commercial demand deposit accounts during the first nine months of 2016 was principally due to growth in commercial regular demand deposit accounts, which was largely due to a large sale completed by a commercial customer during the third quarter of 2016.  

Trustmark uses short-term borrowings to fund growth of earning assets in excess of deposits growth.  Other short-term borrowings totaled $927.7 million at September 30, 2016, an increase of $74.1 million, or 8.7%, when compared with $853.7 million at December 31, 2015 as a result of the increase in earning assets, principally LHFI, out-pacing the growth in deposits.  The increase in other short-term borrowings was principally due to a $41.0 million increase in upstream federal funds purchased as Trustmark continues to utilize this attractively priced funding source as well as a $38.8 million increase in securities sold under repurchase agreements.

Long-term FHLB advances totaled $751.1 million at September 30, 2016, an increase of $249.9 million, or 49.9%, when compared with $501.2 million at December 31, 2015.  During the second quarter of 2016, Trustmark obtained a $250.0 million long-term FHLB advance from the FHLB of Dallas.  Similar to the long-term advance obtained in December 2015, the advance has a variable rate and a two-year maturity.  Trustmark chose to utilize these long-term advances as a funding source due to the advantageous rates available in comparison to other sources of funding.

Recent Legislative and Regulatory Developments

For information regarding legislation and regulation applicable to Trustmark, see the section captioned “Supervision and Regulation” included in Part I. Item 1. – Business of Trustmark’s 2015 Annual Report on Form 10-K.

In March 2016, the Board of Directors of the FDIC approved a final rule to increase the Deposit Insurance Fund (DIF) to the statutorily required minimum level of 1.35 percent.  Under a rule adopted by the FDIC in 2011, regular assessment rates for all banks decrease once the reserve ratio reaches 1.15 percent.  On August 30, 2016, the FDIC announced that the reserve ratio was 1.17 percent as of June 30, 2016.  The final rule approved in March 2016 imposes a surcharge of 4.5 cents per $100 of the assessment base, after making certain adjustments, on banks with at least $10.0 billion in assets.  The FDIC expects the reserve ratio will likely reach 1.35 percent after approximately two years of payments of these surcharges.  The final rule became effective and surcharges began on July 1, 2016.  Trustmark expects that its FDIC assessment expense will decline under this final rule as the lower regular assessment rates and the allowable adjustments will more than offset the surcharge of 4.5 cents per $100 of assessment base.

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In April and May 2016, the FRB, the Office of the Comptroller of the Currency (OCC), and other federal financial agencies re-proposed restrictions on incentive-based compensation pursuant to Section 956 of the Dodd-Frank Act for financial institutions with $1.0 billion or more in total consolidated assets.  For institutions with at least $1.0 billion but less than $50.0 billion in total consolidated assets, such as Trustmark and TNB, the proposal would impose principles-based restrictions that are broadly consistent with existing interagency guidance on incentive-based compensation.  Such institutions would be prohibited from entering into incentive compensation arrangements that encourage inappropriate risk-taking by the institution (1) by providing an executive officer, employee, director, or principal shareholder with excessive compensation, fees, or benefits, or (2) that could lead to material financial loss to the institution.  The proposal would also impose certain governance and recordkeeping requirements on institutions of Trustmark and TNB’s size.  The FRB and OCC would reserve the authority to impose more stringent requirements on institutions of Trustmark and TNB’s size.  Trustmark is evaluating the potential impact, if any, of the proposal on its results of operations and financial condition.

Selected Financial Data

The following table presents financial data derived from Trustmark’s consolidated financial statements as of and for the periods presented ($ in thousands, except per share data):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Consolidated Statements of Income
Total interest income	$	103,786		$	102,769		$	306,715		$	307,146
Total interest expense		6,222			5,163			18,034			15,199
Net interest income		97,564			97,606			288,681			291,947
Provision for loan losses, LHFI		4,284			2,514			9,123			5,332
Provision for loan losses, acquired loans		691			1,256			2,607			2,428
Noninterest income		44,716			45,973			132,219			133,879
Noninterest expense		97,908			103,560			307,031			303,042
Income before income taxes		39,397			36,249			102,139			115,024
Income taxes		8,415			7,819			22,651			26,844
Net Income	$	30,982		$	28,430		$	79,488		$	88,180
Revenues (1)
Total revenues	$	142,280		$	143,579		$	420,900		$	425,826
Per Share Data
Basic earnings per share	$	0.46		$	0.42		$	1.18		$	1.31
Diluted earnings per share		0.46			0.42			1.17			1.30
Cash dividends per share		0.23			0.23			0.69			0.69
Performance Ratios
Return on average equity		8.05	%		7.68	%		7.02	%		8.11	%
Return on average tangible equity		11.16	%		10.96	%		9.85	%		11.62	%
Return on average assets		0.95	%		0.92	%		0.83	%		0.97	%
Average equity/average assets		11.78	%		11.93	%		11.77	%		11.93	%
Net interest margin (fully taxable equivalent)		3.52	%		3.72	%		3.54	%		3.80	%
Dividend payout ratio		50.00	%		54.76	%		58.47	%		52.67	%
Credit Quality Ratios (2)
Net charge-offs/average loans		0.27	%		0.47	%		0.10	%		0.19	%
Provision for loan losses/average loans		0.22	%		0.15	%		0.16	%		0.11	%
Nonperforming loans/total loans (incl LHFS*)		0.70	%		0.88	%
Nonperforming assets/total loans (incl LHFS*)    plus ORE**		1.53	%		2.06	%
Allowance for loan losses/total loans (excl LHFS*)		0.95	%		0.97	%

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September 30,	2016			2015
Consolidated Balance Sheets
Total assets	$	13,161,538		$	12,390,276
Securities		3,554,181			3,561,262
Total loans (including LHFS* and acquired loans)		8,037,038			7,384,495
Deposits		9,685,701			9,412,404
Total shareholders' equity		1,534,761			1,476,756
Stock Performance
Market value - close	$	27.56		$	23.17
Book value		22.69			21.86
Tangible book value		16.95			16.00
Capital Ratios
Total equity/total assets		11.66	%		11.92	%
Tangible equity/tangible assets		8.97	%		9.01	%
Tangible equity/risk-weighted assets		11.85	%		12.24	%
Tier 1 leverage ratio		9.92	%		10.09	%
Common equity tier 1 risk-based capital ratio		12.35	%		13.00	%
Tier 1 risk-based capital ratio		12.97	%		13.66	%
Total risk-based capital ratio		13.82	%		14.66	%

(1) Consistent with Trustmark's audited annual financial statements, revenue is defined as net interest income plus noninterest income

(2) Excludes Acquired Loans and Covered Other Real Estate

* LHFS is Loans Held for Sale

** ORE is Other Real Estate

Non-GAAP Financial Measures

In addition to capital ratios defined by U.S. generally accepted accounting principles (GAAP) and banking regulators, Trustmark utilizes various tangible common equity measures when evaluating capital utilization and adequacy.  Tangible common equity, as defined by Trustmark, represents common equity less goodwill and identifiable intangible assets.

Trustmark believes these measures are important because they reflect the level of capital available to withstand unexpected market conditions.  Additionally, presentation of these measures allows readers to compare certain aspects of Trustmark’s capitalization to other organizations.  These ratios differ from capital measures defined by banking regulators principally in that the numerator excludes shareholders’ equity associated with preferred securities, the nature and extent of which varies across organizations.  In Management’s experience, many stock analysts use tangible common equity measures in conjunction with more traditional bank capital ratios to compare capital adequacy of banking organizations with significant amounts of goodwill or other tangible assets, typically stemming from the use of the purchase accounting method in accounting for mergers and acquisitions.

These calculations are intended to complement the capital ratios defined by GAAP and banking regulators.  Because GAAP does not include these capital ratio measures, Trustmark believes there are no comparable GAAP financial measures to these tangible common equity ratios.  Despite the importance of these measures to Trustmark, there are no standardized definitions for them and, as a result, Trustmark’s calculations may not be comparable with other organizations.  Also there may be limits in the usefulness of these measures to investors.  As a result, Trustmark encourages readers to consider its consolidated financial statements and the notes related thereto in their entirety and not to rely on any single financial measure. 

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The following table reconciles Trustmark’s calculation of these measures to amounts reported under GAAP for the periods presented ($ in thousands, except per share data):

		Three Months Ended September 30,						Nine Months Ended September 30,
		2016			2015			2016			2015
TANGIBLE EQUITY
AVERAGE BALANCES
Total shareholders' equity		$	1,530,842		$	1,469,255		$	1,512,855		$	1,453,693
Less:  Goodwill			(366,156	)		(365,500	)		(366,156	)		(365,500	)
Identifiable intangible assets			(23,311	)		(31,144	)		(24,988	)		(31,304	)
Total average tangible equity		$	1,141,375		$	1,072,611		$	1,121,711		$	1,056,889
PERIOD END BALANCES
Total shareholders' equity		$	1,534,761		$	1,476,756
Less:  Goodwill			(366,156	)		(365,500	)
Identifiable intangible assets			(22,366	)		(30,129	)
Total tangible equity	(a)	$	1,146,239		$	1,081,127
TANGIBLE ASSETS
Total assets		$	13,161,538		$	12,390,276
Less:  Goodwill			(366,156	)		(365,500	)
Identifiable intangible assets			(22,366	)		(30,129	)
Total tangible assets	(b)	$	12,773,016		$	11,994,647
Risk-weighted assets	(c)	$	9,670,302		$	8,832,099
NET INCOME ADJUSTED FOR INTANGIBLE AMORTIZATION
Net income		$	30,982		$	28,430		$	79,488		$	88,180
Plus:  Intangible amortization net of tax			1,045			1,199			3,199			3,638
Net income adjusted for intangible amortization		$	32,027		$	29,629		$	82,687		$	91,818
Period end shares outstanding	(d)		67,626,939			67,557,395
TANGIBLE EQUITY MEASUREMENTS
Return on average tangible equity (1)			11.16	%		10.96	%		9.85	%		11.62	%
Tangible equity/tangible assets	(a)/(b)		8.97	%		9.01	%
Tangible equity/risk-weighted assets	(a)/(c)		11.85	%		12.24	%
Tangible book value	(a)/(d)*1,000	$	16.95		$	16.00
COMMON EQUITY TIER 1 CAPITAL (CET1)
Total shareholders' equity		$	1,534,761		$	1,476,756
AOCI-related adjustments			17,075			28,580
CET1 adjustments and deductions:
Goodwill net of associated deferred tax liabilities (DTLs)			(347,800	)		(348,587	)
Other adjustments and deductions for CET1 (2)			(9,307	)		(8,888	)
CET1 capital	(e)		1,194,729			1,147,861
Additional tier 1 capital instruments plus related surplus			60,000			60,000
Less: additional tier 1 capital deductions			(276	)		(1,287	)
Additional tier 1 capital			59,724			58,713
Tier 1 Capital		$	1,254,453		$	1,206,574
Common equity tier 1 risk-based capital ratio	(e)/(c)		12.35	%		13.00	%

(1) Calculation = ((net income adjusted for intangible amortization/number of days in period)*number of days in year)/total average tangible equity

(2) Includes other intangible assets, net of DTLs, disallowed deferred tax assets, threshold deductions and transition adjustments, as applicable

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Significant Non-Routine Transactions

Trustmark discloses certain non-GAAP financial measures, including net income adjusted for significant non-routine transactions, because Management uses these measures for business planning purposes, including to manage Trustmark’s business against internal projected results of operations and to measure Trustmark’s performance.  Trustmark views net income adjusted for significant non-routine transactions as a measure of our core operating business, which excludes the impact of the items detailed below, as these items are generally not operational in nature.  This non-GAAP measure also provides another basis for comparing period-to-period results as presented in the accompanying selected financial data table and the audited consolidated financial statements by excluding potential differences caused by non-operational and unusual or non-recurring items.  Readers are cautioned that these adjustments are not permitted under GAAP.  Trustmark encourages readers to consider its consolidated financial statements and the notes related thereto in their entirety, and not to rely on any single financial measure.

The following table presents adjustments to net income and select financial ratios as reported in accordance with GAAP resulting from significant non-routine items occurring during the periods presented ($ in thousands, except per share data):

	Three Months Ended September 30,											Nine Months Ended September 30,
	2016						2015					2016						2015
	Amount			Diluted EPS			Amount			Diluted EPS		Amount			Diluted EPS			Amount			Diluted EPS
Net Income (GAAP)	$	30,982		$	0.457		$	28,430		$	0.420	$	79,488		$	1.173		$	88,180		$	1.303
Significant non-routine transactions (net of taxes):
Non-routine early retirement    program expense		146			0.002			—			—		5,884			0.087			—			—
Non-routine pension expense due to    de-risking strategy in Plan assets portfolio		410			0.006			—			—		410			0.006			—			—
Net Income adjusted for significant    non-routine transactions (Non-GAAP)	$	31,538		$	0.465		$	28,430		$	0.420	$	85,782		$	1.266		$	88,180		$	1.303
	Reported (GAAP)			Adjusted (Non-GAAP)			Reported (GAAP)			Adjusted (Non-GAAP)		Reported (GAAP)			Adjusted (Non-GAAP)			Reported (GAAP)			Adjusted (Non-GAAP)
Return on average equity		8.05	%		8.20	%		7.68	%	n/a			7.02	%		7.57	%		8.11	%	n/a
Return on average tangible equity		11.16	%		11.36	%		10.96	%	n/a			9.85	%		10.60	%		11.62	%	n/a
Return on average assets		0.95	%		0.97	%		0.92	%	n/a			0.83	%		0.89	%		0.97	%	n/a

n/a – Not Applicable

Results of Operations

Net Interest Income

Net interest income is the principal component of Trustmark’s income stream and represents the difference, or spread, between interest and fee income generated from earning assets and the interest expense paid on deposits and borrowed funds.  Fluctuations in interest rates, as well as volume and mix changes in earning assets and interest-bearing liabilities, can materially impact net interest income. The net interest margin is computed by dividing fully taxable equivalent (FTE) net interest income by average interest-earning assets and measures how effectively Trustmark utilizes its interest-earning assets in relationship to the interest cost of funding them.  The accompanying Yield/Rate Analysis Table shows the average balances for all assets and liabilities of Trustmark and the interest income or expense associated with earning assets and interest-bearing liabilities.  The yields and rates have been computed based upon interest income and expense adjusted to a FTE basis using a 35% federal marginal tax rate for all periods shown.  Loans on nonaccrual have been included in the average loan balances, and interest collected prior to these loans having been placed on nonaccrual has been included in interest income.  Loan fees included in interest associated with the average loan balances are immaterial.

Net interest income-FTE for the three months ended September 30, 2016 remained relatively unchanged when compared to the same time period in 2015, while the net interest margin for the third quarter of 2016 decreased 20 basis points to 3.52% when compared to the third quarter of 2015.  Net interest income-FTE for the nine months ended September 30, 2016 decreased $1.7 million, or 0.6%, when compared with the same time period in 2015. The net interest margin for the nine months ended September 30, 2016 decreased 26 basis points to 3.54% when compared to the same time period in 2015.  The decrease in the net interest margin for both the three and nine months ended September 30, 2016, reflected the prolonged low interest rate environment in the United States, and was primarily the result of decreases in the yield on acquired loans principally due to declines in accretion income and recoveries on settlement of debt related to acquired loans and downward repricing of LHFI in response to increased competitive pricing pressures.  The net interest margin excluding acquired loans, which equals the reported net interest income-FTE excluding interest and fees on

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acquired loans, as a percentage of average earning assets excluding average acquired loans, for the three and nine months ended September 30, 2016 was 3.38% and 3.39%, respectively, a decrease of 5 basis points and 8 basis points, respectively, when compared to the same time periods in 2015, due to similar factors as discussed above.

Average interest-earning assets for the first nine months of 2016 were $11.406 billion compared to $10.700 billion for the same time period in 2015, an increase of $706.7 million, or 6.6%.  The growth in average earning assets during the first nine months of 2016 was primarily due to an increase in average loans (LHFS and LHFI) of $873.7 million, or 13.2%, partially offset by a decrease in average acquired loans of $134.4 million, or 27.8%, and decline in average total securities of $50.6 million, or 1.4%.  The increase in average loans (LHFS and LHFI) was primarily attributable to the $707.6 million, or 10.4%, increase in the LHFI portfolio when balances at September 30, 2016 are compared to balances at September 30, 2015.  This increase represented net growth across all of Trustmark’s market regions and all categories in its LHFI portfolio, with the exception of loans secured by 1-4 family residential properties and construction, land development and other land loans.  The decline in average acquired loans was primarily attributable to pay-offs of acquired loans, principally related to the BancTrust merger.  The decline in average total securities for the first nine months of 2016 was principally due to calls, maturities and pay-downs of the loans underlying these securities.

During the first nine months of 2016, interest and fees on LHFS and LHFI-FTE increased $20.5 million, or 9.6%, when compared to the same time period in 2015, due to growth in LHFI, while the yield on loans (LHFS and LHFI) fell 14 basis points to 4.18% as a result of downward repricing of LHFI due to the current low interest rate environment and related competitive pressures.  During the first nine months of 2016, interest and fees on acquired loans decreased $17.4 million, or 44.3%, compared to the same time period in 2015, due to declines in accretion income and recoveries on settlement of debt as acquired loans continue to pay-down as anticipated.  As a result, the yield on acquired loans for the first nine months of 2016 decreased to 8.38% compared to 10.87% during the first nine months of 2015.  As a result of these factors, interest income-FTE increased $1.1 million, or 0.3%, when the first nine months of 2016 is compared to the same time period in 2015.  The impact of these changes is also illustrated by the decline in the yield on total earning assets, which fell from 3.99% for the first nine months of 2015 to 3.75% for the first nine months of 2016, a decrease of 24 basis points.

Average interest-bearing liabilities for the first nine months of 2016 totaled $8.265 billion compared to $7.832 billion for the same time period in 2015, an increase of $433.0 million, or 5.5%.  The increase in average interest-bearing liabilities was principally due to the increase in average other borrowings partially offset by a decline in average interest-bearing deposits.  Average other borrowings increased $656.0 million when the first nine months of 2016 is compared to the first nine months of 2015, primarily reflecting the increased balance of long-term FHLB advances obtained from the FHLB of Dallas as Trustmark chose to utilize these less costly sources of funding, partially offset by the maturity of a $6.5 million FHLB advance with the FHLB of Atlanta, which was acquired in the BancTrust merger, during the fourth quarter of 2015.  Average interest-bearing deposits for the first nine months of 2016 decreased $235.8 million, or 3.4%, when compared to the same time period in 2015, principally due to declines in average time deposits, reflecting Trustmark’s continued efforts to reduce high-cost deposit balances and customers continued movement away from longer-term commitments as a result of the low interest rate environment.  

Total interest expense for the first nine months of 2016 increased $2.8 million, or 18.7%, when compared with the same time period in 2015, principally due to the increase in other interest expense.  Other interest expense for the first nine months of 2016 increased $2.3 million, or 46.2%, when compared to the same time period in 2015 primarily due to the increase in FHLB advances with the FHLB of Dallas, while the rate on other borrowings declined from 1.61% for the first nine months of 2015 to 0.92% for the first nine months of 2016.  The decline in the rate on other borrowings for the first nine months of 2016 was principally due to the FHLB advances outstanding during the first nine months of 2016 having a much lower interest rate than those advances outstanding during the first nine months of 2015, primarily as a result of the $6.5 million FHLB advance acquired in the BancTrust merger which expired in the fourth quarter of 2015.  During the first nine months of 2016, interest expense on federal funds purchased and securities sold under repurchase agreements increased $719 thousand, while the rate on federal funds purchased and securities sold under repurchase agreements increased 19 basis points to 0.34% when compared to the first nine months of 2015.  The increase in the rate on federal funds purchased and securities sold under repurchase agreements for the first nine months of 2016 was primarily due to the increase in rates by the FRB.  As a result of these factors, the overall yield on interest-bearing liabilities increased 3 basis points to 0.29% when the first nine months of 2016 is compared with the first nine months of 2015.

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The following tables provide the tax equivalent basis yield or rate for each component of the tax equivalent net interest margin for the periods presented ($ in thousands):

	Three Months Ended September 30,
	2016								2015
	Average Balance			Interest		Yield/ Rate			Average Balance			Interest		Yield/ Rate
Assets
Interest-earning assets:
Federal funds sold and securities purchased under    reverse repurchase agreements	$	1,352		$	5		1.47	%	$	1,167		$	2		0.68	%
Securities - taxable		3,364,162			19,351		2.29	%		3,421,436			20,264		2.35	%
Securities - nontaxable		129,412			1,388		4.27	%		152,568			1,609		4.18	%
Loans (LHFS and LHFI)		7,658,089			80,649		4.19	%		6,771,947			72,951		4.27	%
Acquired loans		317,273			6,781		8.50	%		440,244			11,607		10.46	%
Other earning assets		68,706			223		1.29	%		58,534			392		2.66	%
Total interest-earning assets		11,538,994			108,397		3.74	%		10,845,896			106,825		3.91	%
Cash and due from banks		299,670								266,174
Other assets		1,243,854								1,286,189
Allowance for loan losses, net		(82,301	)							(84,482	)
Total Assets	$	13,000,217							$	12,313,777
Liabilities and Shareholders' Equity
Interest-bearing liabilities:
Interest-bearing deposits	$	6,616,590			3,208		0.19	%	$	6,760,033			3,147		0.18	%
Federal funds purchased and securities sold under    repurchase agreements		481,071			411		0.34	%		528,232			205		0.15	%
Other borrowings		1,174,412			2,603		0.88	%		647,937			1,811		1.11	%
Total interest-bearing liabilities		8,272,073			6,222		0.30	%		7,936,202			5,163		0.26	%
Noninterest-bearing demand deposits		3,060,331								2,771,186
Other liabilities		136,971								137,134
Shareholders' equity		1,530,842								1,469,255
Total Liabilities and Shareholders' Equity	$	13,000,217							$	12,313,777
Net Interest Margin					102,175		3.52	%					101,662		3.72	%
Less tax equivalent adjustment					4,611								4,056
Net Interest Margin per Consolidated    Statements of Income				$	97,564							$	97,606

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	Nine Months Ended September 30,
	2016								2015
	Average Balance			Interest		Yield/ Rate			Average Balance			Interest		Yield/ Rate
Assets
Interest-earning assets:
Federal funds sold and securities purchased under    reverse repurchase agreements	$	1,000		$	10		1.34	%	$	650		$	4		0.82	%
Securities - taxable		3,351,572			58,839		2.35	%		3,377,246			59,581		2.36	%
Securities - nontaxable		135,038			4,314		4.27	%		159,973			5,086		4.25	%
Loans (LHFS and LHFI)		7,503,842			234,661		4.18	%		6,630,143			214,155		4.32	%
Acquired loans		348,369			21,854		8.38	%		482,807			39,242		10.87	%
Other earning assets		66,477			653		1.31	%		48,759			1,177		3.23	%
Total interest-earning assets		11,406,298			320,331		3.75	%		10,699,578			319,245		3.99	%
Cash and due from banks		284,295								276,151
Other assets		1,245,988								1,292,685
Allowance for loan losses, net		(82,351	)							(83,611	)
Total Assets	$	12,854,230							$	12,184,803
Liabilities and Shareholders' Equity
Interest-bearing liabilities:
Interest-bearing deposits	$	6,692,936			9,368		0.19	%	$	6,928,711			9,598		0.19	%
Federal funds purchased and securities sold under    repurchase agreements		495,535			1,246		0.34	%		482,740			527		0.15	%
Other borrowings		1,076,822			7,420		0.92	%		420,841			5,074		1.61	%
Total interest-bearing liabilities		8,265,293			18,034		0.29	%		7,832,292			15,199		0.26	%
Noninterest-bearing demand deposits		2,941,795								2,762,064
Other liabilities		134,287								136,754
Shareholders' equity		1,512,855								1,453,693
Total Liabilities and Shareholders' Equity	$	12,854,230							$	12,184,803
Net Interest Margin					302,297		3.54	%					304,046		3.80	%
Less tax equivalent adjustment					13,616								12,099
Net Interest Margin per Consolidated    Statements of Income				$	288,681							$	291,947

Provision for Loan Losses, LHFI

The provision for loan losses, LHFI is determined by Management as the amount necessary to adjust the allowance for loan losses, LHFI to a level, which, in Management’s best estimate, is necessary to absorb probable losses within the existing loan portfolio.  The provision for loan losses, LHFI reflects loan quality trends, including the levels of and trends related to nonaccrual LHFI, past due LHFI, potential problem LHFI, criticized LHFI, net charge-offs or recoveries and growth in the LHFI portfolio among other factors.  Accordingly, the amount of the provision reflects the necessary increases in the allowance for loan losses, LHFI related to newly identified criticized LHFI as well as the actions taken related to other LHFI including, among other things, any necessary increases or decreases in required allowances for specific loans or loan pools.  The provision for loan losses, LHFI totaled $4.3 million and $9.1 million, respectively, for the three and nine months ended September 30, 2016, an increase of $1.8 million and $3.8 million, respectively, when compared to the same time periods in 2015.  See the section captioned “Allowance for Loan Losses, LHFI” for further analysis of the provision for loan losses, LHFI.

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Provision for Loan Losses, Acquired Loans

The provision for loan losses, acquired loans is recognized subsequent to acquisition to the extent it is probable that Trustmark will be unable to collect all cash flows expected at acquisition plus additional cash flows expected to be collected arising from changes in estimates after acquisition, considering both the timing and amount of those expected cash flows.  Provisions may be required when actual losses of unpaid principal incurred exceed previous loss expectations to date, or future cash flows previously expected to be collectible are no longer probable of collection.  The provision for loan losses, acquired loans is reflected as a valuation allowance netted against the carrying value of the acquired loans accounted for under Financial Accounting Standards Board (FASB) Accounting Standard Codification (ASC) Topic 310-30, “Loans and Debt Securities Acquired with Deteriorated Credit Quality.”  The decrease in the provision for loan losses, acquired loans during the third quarter of 2016 when compared to the third quarter of 2015 was principally due to changes in expectations based on the periodic re-estimations performed during the period, primarily related to loans acquired from BancTrust and Heritage.  The increase in the provision for loan losses, acquired loans during the first nine months of 2016 when compared to the same time period in 2015 was principally due to changes in expectations based on the periodic re-estimations performed during the period, primarily related to loans acquired from Bay Bank, an increase in charge-offs of acquired loans from Bay Bank, and a decrease in recoveries of acquired loans primarily from BancTrust partially offset by a decrease in charge-offs of acquired loans from both Heritage and BancTrust.

The following table presents the provision for loan losses, acquired loans, by acquisition for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
BancTrust	$	711		$	1,335		$	3,066		$	3,043
Bay Bank		58			(112	)		6			(224	)
Heritage		(78	)		33			(465	)		(391	)
Total provision for loan losses, acquired loans	$	691		$	1,256		$	2,607		$	2,428

Noninterest Income

Noninterest income represented 31.4% and 31.5% of total revenue, before securities losses, net, for the three and nine months ended September 30, 2016, respectively, compared to 32.0% and 31.4% of total revenue, before securities losses, net, for the three and nine months ended September 30, 2015, respectively.  The following table provides the comparative components of noninterest income for the periods presented ($ in thousands):

	Three Months Ended September 30,										Nine Months Ended September 30,
	2016		2015		$ Change			% Change			2016			2015			$ Change			% Change
Service charges on deposit accounts	$	11,677	$	12,400	$	(723	)		-5.8	%	$	33,809		$	35,405		$	(1,596	)		-4.5	%
Bank card and other fees		6,756		6,964		(208	)		-3.0	%		21,110			21,142			(32	)		-0.2	%
Mortgage banking, net		7,364		7,443		(79	)		-1.1	%		22,784			25,889			(3,105	)		-12.0	%
Insurance commissions		10,074		9,906		168			1.7	%		28,305			27,923			382			1.4	%
Wealth management		7,571		7,790		(219	)		-2.8	%		22,987			23,538			(551	)		-2.3	%
Other, net		1,274		1,470		(196	)		-13.3	%		3,534			(18	)		3,552		n/m
Total Noninterest Income before    securities losses, net		44,716		45,973		(1,257	)		-2.7	%		132,529			133,879			(1,350	)		-1.0	%
Security losses, net		—		—		—			—			(310	)		—			(310	)	n/m
Total Noninterest Income	$	44,716	$	45,973	$	(1,257	)		-2.7	%	$	132,219		$	133,879		$	(1,660	)		-1.2	%

n/m - percentage changes greater than +/- 100% are not considered meaningful

Changes in various components of noninterest income are discussed in further detail below.  For analysis of Trustmark’s insurance commissions and wealth management income, please see the section captioned “Results of Segment Operations.”

Service Charges on Deposit Accounts

The decrease in service charges on deposit accounts for both the three and nine months ended September 30, 2016 when compared to the same time periods in 2015 was primarily due to a decrease in the number of occurrences resulting in a non-sufficient funds or overdraft charge.

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Mortgage Banking, Net

The following table illustrates the components of mortgage banking income included in noninterest income for the periods presented ($ in thousands):

	Three Months Ended September 30,												Nine Months Ended September 30,
	2016			2015			$ Change			% Change			2016			2015			$ Change			% Change
Mortgage servicing income, net	$	5,271		$	4,906		$	365			7.4	%	$	15,506		$	14,499		$	1,007			7.0	%
Change in fair value-MSR from runoff		(2,862	)		(2,636	)		(226	)		8.6	%		(7,367	)		(7,436	)		69			-0.9	%
Gain on sales of loans, net		6,410			4,479			1,931			43.1	%		14,481			13,309			1,172			8.8	%
Other, net		(299	)		215			(514	)	n/m				2,841			1,666			1,175			70.5	%
Mortgage banking income before    hedge ineffectiveness		8,520			6,964			1,556			22.3	%		25,461			22,038			3,423			15.5	%
Change in fair value-MSR from    market changes		381			(4,141	)		4,522		n/m				(13,518	)		(433	)		(13,085	)	n/m
Change in fair value of derivatives		(1,537	)		4,620			(6,157	)	n/m				10,841			4,284			6,557		n/m
Net (negative) positive hedge    ineffectiveness		(1,156	)		479			(1,635	)	n/m				(2,677	)		3,851			(6,528	)	n/m
Mortgage banking, net	$	7,364		$	7,443		$	(79	)		-1.1	%	$	22,784		$	25,889		$	(3,105	)		-12.0	%

n/m - percentage changes greater than +/- 100% are not considered meaningful

The decrease in net revenue from mortgage banking for the three months ended September 30, 2016 when compared to the same time period in 2015 was principally due to a net negative hedge ineffectiveness in the third quarter of 2016 compared to a net positive hedge ineffectiveness in the third quarter of 2015, which was mostly offset by an increase in gain on sale of loans, net.  The decrease in net revenue from mortgage banking for the nine months ended September 30, 2016 when compared to the same time period in 2015 was principally due to a net negative hedge ineffectiveness in the first nine months of 2016 compared to a net positive hedge ineffectiveness in the first nine months of 2015 partially offset by increases in mortgage banking income due to the factors described below.  Mortgage loan production for the three and nine months ended September 30, 2016 was $487.9 million and $1.199 billion, respectively, an increase of $67.5 million, or 16.1%, and $57.6 million, or 5.0%, respectively, when compared to the same time periods in 2015.  Loans serviced for others totaled $6.265 billion at September 30, 2016, compared with $5.852 billion at September 30, 2015, an increase of $413.0 million, or 7.1%, primarily due to increased loan sales.

Representing a significant component of mortgage banking income is gain on the sales of loans, net.  The increase in the gain on sales of loans, net when the three and nine months ended September 30, 2016 is compared to the same time periods in 2015, resulted from both higher profit margins from secondary marketing activities as well as higher volumes of loans sold.  Loan sales totaled $425.6 million for the three months ended September 30, 2016, an increase of $75.1 million, or 21.4%, when compared with the same time period in 2015.  Loan sales totaled $1.016 billion for the nine months ended September 30, 2016, an increase of $85.8 million, or 9.2%, when compared with the same time period in 2015.  The increase in loans sales for the first nine months of 2016 when compared to the same time period in 2015 was primarily due to Trustmark’s decision during 2015 to sell the vast majority of these lower-rate, longer-term home mortgages in the secondary market, rather than replacing the run-off in its single-family loan portfolio.

Other mortgage banking income, net includes the net valuation adjustment recognized in income in accordance with FASB ASC Topic 825, “Financial Instruments,” for the fair value of LHFS accounted for under the fair value option and the net valuation adjustment recognized in income in accordance with FASB ASC Topic 815, “Derivatives and Hedging,” for the fair value of interest rate lock commitments and forward sales contracts.  Valuation adjustments are primarily the result of changes in volume and profit margins for the related instruments during the period.  The decrease in other mortgage banking income, net when comparing the three months ended September 30, 2016 with the same time period in 2015 primarily resulted from the negative net valuation adjustment in the fair value of LHFS, interest rate lock commitments and forward sales contracts during the third quarter of 2016 compared to a positive net valuation adjustment during the third quarter of 2015, which was principally due to larger declines in volumes during the three months ended September 30, 2016.  The increase in other mortgage banking income, net when comparing the first nine months of 2016 with the same time period in 2015 primarily resulted from an increase in the positive net valuation adjustment in the fair value of LHFS, interest rate lock commitments and forward sales contracts during the period, which was principally due to higher increases in volumes and profit margins during the first nine months of 2016.  For additional information regarding the LHFS accounted for under the fair value option, please see the section captioned “Fair Value Option” included in Note 15 – Fair Value set forth in Part I. Item 1. – Financial Statements – of this report.  See the section captioned “Derivatives” for further discussion of the mortgage related derivative instruments.

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Other Income, Net

The following table illustrates the components of other income, net included in noninterest income for the periods presented ($ in thousands):

	Three Months Ended September 30,												Nine Months Ended September 30,
	2016			2015			$ Change			% Change			2016			2015			$ Change			% Change
Partnership amortization for tax credit    purposes	$	(2,479	)	$	(2,083	)	$	(396	)		19.0	%	$	(7,437	)	$	(7,035	)	$	(402	)		5.7	%
(Decrease) Increase in FDIC    indemnification asset		(72	)		82			(154	)	n/m				(289	)		(2,686	)		2,397			-89.2	%
Increase in life insurance cash    surrender value		1,746			1,687			59			3.5	%		5,140			5,035			105			2.1	%
Other miscellaneous income		2,079			1,784			295			16.5	%		6,120			4,668			1,452			31.1	%
Total other, net	$	1,274		$	1,470		$	(196	)		-13.3	%	$	3,534		$	(18	)	$	3,552		n/m

n/m - percentage changes greater than +/- 100% are not considered meaningful

The increase in other income, net when the first nine months of 2016 are compared to the same time period in 2015 was primarily the result of a decrease in the net reduction of the FDIC indemnification asset and increases in other miscellaneous income.  The increase in other miscellaneous income for the first nine months of 2016 compared to the same time period in 2015 was principally due to a decrease in the net loss on the sale of premises and equipment due to a loss recorded during the first nine months of 2015 on the sale of a former bank branch acquired in the February 2013 merger with BancTrust and an increase in other miscellaneous income related to various vendor contract bonuses and settlements received during the second quarter of 2016 as well as a one-time arrangement fee received during the third quarter of 2016.  The decrease in the net reduction of the FDIC indemnification asset for the nine months ended September 30, 2016 was principally due to the decline in the balance of the FDIC indemnification asset as a result of amortization and valuation adjustments over the life of the loss share agreements as well as the expiration of a loss share agreement with the FDIC on June 30, 2016.  See the section caption “Acquired Loans” for further discussion of the acquired loans covered by loss share agreements with the FDIC.

Noninterest Expense

The following table illustrates the comparative components of noninterest expense for the periods presented ($ in thousands):

	Three Months Ended September 30,											Nine Months Ended September 30,
	2016			2015		$ Change			%Change			2016			2015			$ Change			% Change
Salaries and employee benefits	$	57,250		$	58,270	$	(1,020	)		-1.8	%	$	181,469		$	172,832		$	8,637			5.0	%
Services and fees		14,947			14,691		256			1.7	%		43,944			43,817			127			0.3	%
Net occupancy-premises		6,440			6,580		(140	)		-2.1	%		18,556			19,014			(458	)		-2.4	%
Equipment expense		6,063			5,877		186			3.2	%		18,053			17,754			299			1.7	%
Other real estate expense:
Write-downs		671			2,156		(1,485	)		-68.9	%		3,653			3,526			127			3.6	%
Net (gain)/loss on sale		(2,706	)		107		(2,813	)	n/m				(6,152	)		(2,063	)		(4,089	)	n/m
Carrying costs		722			1,122		(400	)		-35.7	%		2,560			3,958			(1,398	)		-35.3	%
Total other real estate expense		(1,313	)		3,385		(4,698	)	n/m				61			5,421			(5,360	)		-98.9	%
FDIC assessment expense		2,911			2,559		352			13.8	%		8,681			8,114			567			7.0	%
Other expense		11,610			12,198		(588	)		-4.8	%		36,267			36,090			177			0.5	%
Total noninterest expense	$	97,908		$	103,560	$	(5,652	)		-5.5	%	$	307,031		$	303,042		$	3,989			1.3	%

n/m - percentage changes greater than +/- 100% are not considered meaningful

Changes in the various component of noninterest expense are discussed in further detail below.  Management considers disciplined expense management a key area of focus in the support of improving shareholder value.  During the second quarter of 2016, Trustmark completed a voluntary ERP as a proactive measure to manage noninterest expense.  As a result of the ERP, 188 of the eligible associates retired by June 30, 2016.  The ERP resulted in a one-time charge of $9.3 million to noninterest expense ($9.1 million included in salaries and employee benefits expense and $230 thousand included in other expense) during the second quarter of 2016 and $236 thousand of noninterest expense included in salaries and employee benefits expense during the third quarter of 2016.

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Salaries and Employee Benefits

The decrease in salaries and employee benefits, the largest category of noninterest expense, for the three months ended September 30, 2016 when compared to the same time period in 2015 was principally due to the ERP completed during the second quarter of 2016.  During the third quarter of 2016, Trustmark realized cost savings related to the ERP of $1.9 million in salaries and employee benefits expense, which was partially offset by the $236 thousand of additional pension expense related to the ERP, which resulted from additional settlements from pension lump sum elections, and $664 thousand of non-routine pension expense resulting from the de-risking strategy implemented for the plan assets in anticipation of the termination of the Plan on December 31, 2016.  The increase in salaries and employee benefits for the nine months ended September 30, 2016 when compared to the same time period in 2015 was principally due to the ERP completed during the second quarter of 2016 and higher commission expense resulting from increased mortgage and insurance production.  Excluding the non-routine expenses related to the ERP and the Plan termination, salaries and employee benefits for the nine months ended September 30, 2016 decreased $1.3 million, or 0.8%, when compared to the same time period in 2015.

Other Real Estate Expense

The decrease in other real estate expense for the three months ended September 30, 2016 compared with the same time period in 2015 was principally due to an increase in the net gain on the sale of other real estate and a decrease in write-downs of other real estate as well as declines in other real estate taxes.  The decrease in other real estate expense for the nine months ended September 30, 2016 compared with the same time period in 2015 was principally due to an increase in the net gain on the sale of other real estate as well as declines in other real estate carrying costs.  For additional analysis of other real estate and foreclosure expenses, please see the section captioned “Nonperforming Assets, Excluding Acquired Loans and Covered Other Real Estate.”

Other Expense

The following table illustrates the comparative components of other noninterest expense for the periods presented ($ in thousands):

	Three Months Ended September 30,										Nine Months Ended September 30,
	2016		2015		$ Change			% Change			2016		2015		$ Change			% Change
Loan expense	$	3,336	$	3,416	$	(80	)		-2.3	%	$	9,403	$	9,479	$	(76	)		-0.8	%
Amortization of intangibles		1,692		1,942		(250	)		-12.9	%		5,180		5,892		(712	)		-12.1	%
Other miscellaneous expense		6,582		6,840		(258	)		-3.8	%		21,684		20,719		965			4.7	%
Total other expense	$	11,610	$	12,198	$	(588	)		-4.8	%	$	36,267	$	36,090	$	177			0.5	%

The increase in other expenses for the nine months ended September 30, 2016 when compared to the same time period in 2015 was principally due to increases in other miscellaneous expenses, primarily resulting from higher customer-related fraud losses, a property valuation adjustment recorded during the second quarter of 2016 related to properties transferred to assets held for sale and non-routine expenses related to the ERP during the second quarter of 2016, partially offset by a decline in franchise taxes.  As previously reported, during the second quarter of 2016, Trustmark continued its measured approach to the optimization of its retail delivery channels by closing six branches with limited growth opportunities in the Alabama, Florida and Mississippi market regions.  These six branches and a property previously purchased in anticipation of a future branch were transferred to assets held for sale during the second quarter at the lower of the current net book value or the fair value less costs to sell.  A property valuation adjustment of $750 thousand was recorded as a result of transferring these properties to assets held for sale.

Results of Segment Operations

For a description of the methodologies used to measure financial performance and financial information by reportable segment, please see Note 17 – Segment Information included in Part I. Item 1. – Financial Statements – of this report.  The following discusses changes in the results of operations of each reportable segment for the nine months ended September 30, 2016 and 2015.

General Banking

Net interest income for the General Banking Division decreased $3.5 million, or 1.2%, when the nine months ended September 30, 2016 is compared with the same time period in 2015.  The decline in net interest income was mostly due to declines in interest and fees on acquired loans and an increase in other interest expense, which were partially offset by increases in interest and fees on LHFS and LHFI.  The provision for loan losses, net for the nine months ended September 30, 2016 totaled $11.7 million compared to $7.8 million for the same period in 2015, an increase of $4.0 million, or 51.2%.  For more information on these net interest income items, please see the sections captioned “Financial Highlights” and “Results of Operations.”

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Noninterest income for the General Banking Division decreased $1.2 million, or 1.5%, during the first nine months of 2016 compared to the same time period in 2015.  Noninterest income for the General Banking Division represented 22.0% of total revenues for this segment for the first nine months of 2016 as opposed to 22.1% for the same time period in 2015.  Noninterest income for the General Banking Division includes service charges on deposit accounts; bank card and other fees; mortgage banking, net; other income, net and securities losses, net.  For more information on these noninterest income items, please see the analysis included in the section captioned “Noninterest Income.”

Noninterest expense for the General Banking Division increased $4.7 million, or 1.8%, during the first nine months of 2016 compared with the same time period in 2015, principally due to the non-routine expenses related to the ERP, increased commission expense as a result of higher mortgage loan production and non-routine pension expense resulting from the de-risking strategy implemented for the plan assets in anticipation of the termination of the Plan, partially offset by declines in other real estate expense.  For more information on these noninterest expense items, please see the analysis included in the section captioned “Noninterest Expense.”

Wealth Management

During the first nine months of 2016, net income for the Wealth Management Division increased $465 thousand, or 17.5%, when compared to the same time period in 2015.  Net interest income for the Wealth Management Division increased $377 thousand when the first nine months of 2016 is compared to the same time period in 2015 due to an increase in the interest income earned on deposit accounts held by the Wealth Management Division.  Noninterest income, which includes income related to investment management, trust and brokerage services, decreased $796 thousand, or 3.4%, when the first nine months of 2016 are compared to the same time period in 2015.  The decrease in noninterest income for the Wealth Management Division was primarily attributable to declines in commissions and annuity income generated by the brokerage services unit and trust fees related to retirement planning and personal estate services, partially offset by an increase in trust asset management fee income from mutual funds and custody services.  Noninterest expense for the Wealth Management Division decreased $1.2 million, or 6.1%, during the first nine months of 2016 compared to the same time period in 2015, principally due to decreases in salaries and employee benefits, primarily due to lower commissions and salary expense, and data processing charges related to software as well as a gain recorded in other expense during the first quarter of 2016 related to the recapture of funds from a trust account.

At September 30, 2016 and 2015, Trustmark held assets under management and administration of $10.777 billion and $10.285 billion, respectively, and brokerage assets of $1.619 billion and $1.557 billion, respectively.

Insurance

Net income for the Insurance Division during the first nine months of 2016 decreased $167 thousand, or 3.9%, compared to the same time period in 2015.  Noninterest income for the Insurance Division increased $383 thousand, or 1.4%, when the first nine months of 2016 are compared to the same time period in 2015.  Insurance commissions, which make up predominantly all of noninterest income for the Insurance Division, totaled $10.1 million for the third quarter of 2016, an increase of $168 thousand, or 1.7%, compared to the third quarter of 2015, and an increase of $437 thousand, or 4.5%, compared to the second quarter of 2016.  The increase in insurance commissions during the first nine months of 2016 when compared to the same time period in 2015 was primarily due to new business commission volume primarily in group health coverage partially offset by declines in business commission volume primarily in personal property and casualty coverage.  Growth in new business commission volumes reflected both a continued focus on new business and the addition of experienced account executives with an established book of business during 2015.  General business activity in Trustmark’s geographic markets continues to improve marginally, resulting in increases in the demand for coverage on inventories, property, equipment, general liability and workers’ compensation.  Noninterest expense for the Insurance Division increased $502 thousand, or 2.4%, when the first nine months of 2016 is compared to the same time period in 2015, primarily due to higher salaries and commissions expense resulting from modest general merit increases and improved performance.

Income Taxes

For the three and nine months ended September 30, 2016, Trustmark’s combined effective tax rate was 21.4% and 22.2%, respectively, compared to 21.6% and 23.3%, respectively, for the same time periods in 2015.  Trustmark invests in partnerships that provide income tax credits on a Federal and/or State basis (i.e., new market tax credits, low income housing tax credits or historical tax credits).  The income tax credits related to these partnerships are utilized as specifically allowed by income tax law and are recorded as a reduction in income tax expense.

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Financial Condition

Earning assets serve as the primary revenue streams for Trustmark and are comprised of securities, loans, federal funds sold, securities purchased under reverse repurchase agreements and other earning assets.  Average earning assets totaled $11.406 billion, or 88.7% of total average assets, at September 30, 2016, compared to $10.700 billion, or 87.8% of total average assets, at September 30, 2015, an increase of $706.7 million, or 6.6%.

Securities

The securities portfolio is utilized by Management to manage interest rate risk, generate interest income, provide liquidity and use as collateral for public deposits and wholesale funding.  Risk and return can be adjusted by altering duration, composition and/or balance of the portfolio.  The weighted-average life of the portfolio decreased to 3.9 years at September 30, 2016, compared to 5.2 years at December 31, 2015.

When compared with December 31, 2015, total investment securities increased by $20.9 million, or 0.6%, during the first nine months of 2016.  This increase resulted primarily from purchases of government-sponsored enterprise (GSE) guaranteed securities and improvements in the fair market value of the available for sale securities, which were largely offset by maturities and pay-downs of the loans underlying these securities.  Trustmark sold $25.0 million of securities during the first nine months of 2016, which generated a net loss of $310 thousand, compared to no securities sold during the first nine months of 2015.

During 2013, Trustmark reclassified approximately $1.099 billion of securities available for sale as securities held to maturity to mitigate the potential adverse impact of a rising interest rate environment on the fair value of the available for sale securities and the related impact on tangible common equity.  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.  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, 2016, the net unamortized, unrealized loss on the transferred securities included in accumulated other comprehensive loss (AOCL) in the accompanying consolidated balance sheets totaled $25.7 million ($15.8 million net of tax) compared to $34.0 million ($21.0 million net of tax) at December 31, 2015.

Available for sale securities are carried at their estimated fair value with unrealized gains or losses recognized, net of taxes, in AOCL, a separate component of shareholders’ equity.  At September 30, 2016, available for sale securities totaled $2.411 billion, which represented 67.8% of the securities portfolio, compared to $2.345 billion, or 66.4%, at December 31, 2015.  At September 30, 2016, unrealized gains, net on available for sale securities totaled $38.2 million compared to $5.9 million at December 31, 2015.  At September 30, 2016, available for sale securities consisted of obligations of states and political subdivisions, GSE guaranteed mortgage-related securities and direct obligations of government agencies and GSEs.

Held to maturity securities are carried at amortized cost and represent those securities that Trustmark both intends and has the ability to hold to maturity.  At September 30, 2016, held to maturity securities totaled $1.143 billion and represented 32.2% of the total securities portfolio, compared with $1.188 billion, or 33.6%, at December 31, 2015.

Management continues to focus on asset quality as one of the strategic goals of the securities portfolio, which is evidenced by the investment of approximately 95% of the portfolio in GSE-backed obligations and other Aaa-rated securities as determined by Moody’s Investors Services (Moody’s).  None of the securities owned by Trustmark are collateralized by assets which are considered sub-prime.  Furthermore, outside of stock ownership in the FHLB of Dallas, FHLB of Atlanta and Federal Reserve Bank of Atlanta, Trustmark does not hold any other equity investment in a GSE.

As of September 30, 2016, Trustmark did not hold securities of any one issuer with a carrying value exceeding ten percent of total shareholders’ equity, other than certain GSEs which are exempt from inclusion.  Management continues to closely monitor the credit quality as well as the ratings of the debt and mortgage-backed securities issued by the GSEs and held in Trustmark’s securities portfolio.

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The following table presents Trustmark’s securities portfolio by amortized cost and estimated fair value and by credit rating, as determined by Moody’s, at September 30, 2016 ($ in thousands):

	September 30, 2016
	Amortized Cost					Estimated Fair Value
	Amount		%			Amount		%
Securities Available for Sale
Aaa	$	2,251,235		94.9	%	$	2,286,307		94.8	%
Aa1 to Aa3		78,255		3.3	%		80,493		3.4	%
A1 to A3		362		—			369		—
Baa1 to Baa3		221		—			220		—
Not Rated (1)		42,647		1.8	%		43,558		1.8	%
Total securities available for sale	$	2,372,720		100.0	%	$	2,410,947		100.0	%
Securities Held to Maturity
Aaa	$	1,090,297		95.4	%	$	1,117,552		95.3	%
Aa1 to Aa3		39,783		3.5	%		41,965		3.6	%
A1 to A3		389		—			391		—
Baa1 to Baa3		421		—			441		—
Not Rated (1)		12,344		1.1	%		12,752		1.1	%
Total securities held to maturity	$	1,143,234		100.0	%	$	1,173,101		100.0	%

(1) Not rated issues primarily consist of Mississippi municipal general obligations

The table above presenting the credit rating of Trustmark’s securities is formatted to show the securities according to the credit rating category, and not by category of the underlying security.  At September 30, 2016, approximately 94.8% of the available for sale securities and 95.4% of the held to maturity securities were rated Aaa.

LHFS

At September 30, 2016, LHFS totaled $242.1 million, consisting of $204.8 million of residential real estate mortgage loans in the process of being sold to third parties and $37.3 million of GNMA optional repurchase loans.  At December 31, 2015, LHFS totaled $160.2 million, consisting of $124.2 million of residential real estate mortgage loans in the process of being sold to third parties and $36.0 million of GNMA optional repurchase loans.  Please refer to the nonperforming assets table that follows for information on GNMA loans eligible for repurchase which are past due 90 days or more.

During the first quarter of 2015, Trustmark exercised its option to repurchase approximately $28.5 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 subject to guarantees by FHA/VA.  As a result of this repurchase and sale, the loans were no longer carried as LHFS.  The transaction resulted in a gain of $304 thousand, which is included in mortgage banking, net for the first nine months of 2015.  Trustmark did not exercise its buy-back option on any delinquent loans serviced for GNMA during the first nine months of 2016.

For additional information regarding the GNMA optional repurchase loans, please see the section captioned “Past Due LHFS” included in Note 3 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI of Part I. Item 1. – Financial Statements – of this report.

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LHFI

The table below shows the carrying value of the LHFI portfolio by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016					December 31, 2015
	Amount		%			Amount		%
Loans secured by real estate:
Construction, land development and other land	$	766,685		10.2	%	$	824,723		11.6	%
Secured by 1- 4 family residential properties		1,592,453		21.2	%		1,649,501		23.3	%
Secured by nonfarm, nonresidential properties		1,916,153		25.6	%		1,736,476		24.5	%
Other real estate secured		317,680		4.2	%		211,228		3.0	%
Commercial and industrial loans		1,421,382		19.0	%		1,343,211		18.9	%
Consumer loans		170,073		2.3	%		169,135		2.4	%
State and other political subdivision loans		875,973		11.7	%		734,615		10.4	%
Other loans		438,805		5.8	%		422,496		5.9	%
LHFI	$	7,499,204		100.0	%	$	7,091,385		100.0	%

LHFI increased $407.8 million, or 5.8%, compared to December 31, 2015.  The increase in LHFI during the first nine months of 2016 represented net growth across all five of Trustmark’s market regions, primarily in the loans secured by real estate, state and other political subdivision loans categories and commercial and industrial loans.

LHFI secured by real estate increased $171.0 million, or 3.9%, during the first nine months of 2016 as growth in the Alabama, Texas, Mississippi and Florida market regions was partially offset by declines in the Tennessee market region.  LHFI secured by construction, land development and other land decreased $58.0 million, or 7.0%, during the first nine months of 2016, primarily due to other construction loans that were moved to the appropriate permanent categories partially offset by new loans primarily in the other construction loans and 1-4 family construction categories.  During the first nine months of 2016, $441.4 million in other construction loans were moved to the appropriate permanent categories upon completion, including $257.8 million in non-owner occupied, $71.6 million in owner occupied, $111.8 million in multi-family residential and $283 thousand in state and other political subdivision loans.  Excluding all reclassifications between loan categories, growth in other construction loans across all five market regions totaled $363.4 million for the first nine months of 2016.  The 1-4 family construction loan portfolio increased $14.6 million, or 9.5%, during the first nine months of 2016, principally due to growth in Trustmark’s Alabama, Texas and Tennessee market regions.

The commercial real estate loan portfolio increased $179.7 million, or 10.3%, during the first nine months of 2016, principally due to construction loans that moved to permanent financing.  Excluding the reclassifications from other construction loans, the commercial real estate loans portfolio declined $150.3 million, or 8.7%, during the first nine months of 2016.  The decrease in the commercial real estate loan portfolio, excluding the other construction reclassifications, was primarily attributable to declines in non-owner occupied loans in all five of Trustmark’s market regions as well as declines in owner occupied loans in the Mississippi, Texas and Tennessee market regions.  Other real estate secured LHFI increased $106.5 million, or 50.4%, during the first nine months of 2016, primarily due to multi-family residential loans in Trustmark’s Texas, Tennessee, Mississippi and Alabama market regions that were moved from other construction loans to permanent financing.  Excluding all reclassifications between loan categories, other real estate secured LHFI decreased $16.6 million, or 7.9%, during the first nine months of 2016.  LHFI secured by 1-4 family residential properties declined $57.0 million, or 3.5%, during the first nine month of 2016, reflecting declines in the Mississippi, Tennessee, Texas and Florida market regions partially offset by growth in the Alabama market region.  The decline in LHFI secured by 1-4 family residential properties reflects Trustmark’s decision in 2015 to sell the vast majority of these lower-rate, longer-term home mortgages in the secondary market, rather than replacing the run-off in its single-family loan portfolio.

The commercial and industrial loan portfolio increased $78.2 million, or 5.8%, during the first nine months of 2016, due to growth in the Tennessee, Alabama and Florida market regions, partially offset by declines in the Mississippi and Texas market regions.  Trustmark’s exposure to the energy sector is primarily included in the commercial and industrial loan portfolio in Trustmark’s Mississippi and Texas market regions.  At September 30, 2016 and December 31, 2015, energy-related LHFI had outstanding balances of approximately $255.7 million and $213.0 million, respectively, which represented approximately 3.4% of Trustmark’s total LHFI portfolio at September 30, 2016 compared to approximately 3.0% of the total LHFI portfolio at December 31, 2015.  Trustmark has no loan exposure where the source of repayment, or the underlying security of such exposure, is tied to the realization of value from energy reserves.  Should oil prices remain at current levels or below for a prolonged period of time, there is potential for downgrades to occur.  Management will continue to monitor this exposure.  

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State and other political subdivision LHFI increased $141.4 million, or 19.2%, during the first nine months of 2016 principally due to growth in traditional public finance loans, such as investments that entail the use of tax anticipation notes, public school improvements, facility improvements and renovations, in all five of Trustmark’s market regions.  The other loan portfolio, which includes lending to nonprofits and real estate investment trusts, increased $16.3 million, or 3.9%, during the first nine months of 2016, which primarily represented growth in Trustmark’s Tennessee, Mississippi and Alabama market regions partially offset by declines in the Texas market region.

The following table provides information regarding Trustmark’s home equity loans and home equity lines of credit which are included in the LHFI secured by 1-4 family residential properties for the periods presented ($ in thousands):

	September 30, 2016			December 31, 2015
Home equity loans	$	54,009		$	61,635
Home equity lines of credit		382,172			376,998
Percentage of loans and lines for which Trustmark holds first lien		59.1	%		58.9	%
Percentage of loans and lines for which Trustmark does not hold first lien		40.9	%		41.1	%

Due to the increased risk associated with second liens, loan terms and underwriting guidelines differ from those used for products secured by first liens.  Loan amounts and loan-to-value ratios are limited and are lower for second liens than first liens.  Also, interest rates and maximum amortization periods are adjusted accordingly.  In addition, regardless of lien position, the passing credit score for approval of all home equity lines of credit is higher than that of term loans.  The allowance for loan losses, LHFI is also reflective of the increased risk related to second liens through application of a greater loss factor to this portion of the portfolio.

The following tables provide information regarding the interest rate terms of Trustmark’s LHFI as of September 30, 2016 and December 31, 2015 ($ in thousands).  Trustmark’s variable rate LHFI are based primarily on various prime and LIBOR interest rate bases.

	September 30, 2016
	Fixed		Variable		Total
Loans secured by real estate:
Construction, land development and other land	$	226,515	$	540,170	$	766,685
Secured by 1- 4 family residential properties		1,543,286		49,167		1,592,453
Secured by nonfarm, nonresidential properties		1,098,404		817,749		1,916,153
Other real estate secured		148,036		169,644		317,680
Commercial and industrial loans		494,052		927,330		1,421,382
Consumer loans		149,988		20,085		170,073
State and other political subdivision loans		779,194		96,779		875,973
Other loans		191,134		247,671		438,805
LHFI	$	4,630,609	$	2,868,595	$	7,499,204

	December 31, 2015
	Fixed		Variable		Total
Loans secured by real estate:
Construction, land development and other land	$	311,049	$	513,674	$	824,723
Secured by 1- 4 family residential properties		1,573,640		75,861		1,649,501
Secured by nonfarm, nonresidential properties		1,116,689		619,787		1,736,476
Other real estate secured		160,147		51,081		211,228
Commercial and industrial loans		611,198		732,013		1,343,211
Consumer loans		149,742		19,393		169,135
State and other political subdivision loans		682,028		52,587		734,615
Other loans		210,186		212,310		422,496
LHFI	$	4,814,679	$	2,276,706	$	7,091,385

In the following tables, LHFI reported by region (along with related nonperforming assets and net charge-offs) are associated with location of origination except for loans secured by 1-4 family residential properties (representing traditional mortgages), credit cards and indirect consumer auto loans.  These loans are included in the Mississippi Region because they are centrally analyzed and approved as part of a specific line of business located at Trustmark’s headquarters in Jackson, Mississippi.

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The following table presents the LHFI composition by region at September 30, 2016 and reflects a diversified mix of loans by region ($ in thousands):

	September 30, 2016
LHFI Composition by Region	Total		Alabama		Florida		Mississippi		Tennessee		Texas
Loans secured by real estate:
Construction, land development and other land	$	766,685	$	138,256	$	64,664	$	269,498	$	55,915	$	238,352
Secured by 1-4 family residential properties		1,592,453		73,672		47,011		1,350,883		103,739		17,148
Secured by nonfarm, nonresidential properties		1,916,153		264,483		164,480		890,783		135,327		461,080
Other real estate secured		317,680		22,415		3,934		144,864		17,762		128,705
Commercial and industrial loans		1,421,382		150,892		18,288		683,042		288,595		280,565
Consumer loans		170,073		20,109		3,688		126,228		17,917		2,131
State and other political subdivision loans		875,973		76,432		29,602		554,403		32,607		182,929
Other loans		438,805		37,715		18,716		300,260		61,811		20,303
LHFI	$	7,499,204	$	783,974	$	350,383	$	4,319,961	$	713,673	$	1,331,213
Construction, Land Development and Other Land Loans by Region
Lots	$	58,673	$	14,008	$	19,480	$	20,700	$	1,831	$	2,654
Development		49,186		6,315		7,246		20,929		619		14,077
Unimproved land		110,549		15,868		16,764		43,079		17,028		17,810
1-4 family construction		169,657		43,729		9,821		70,614		2,877		42,616
Other construction		378,620		58,336		11,353		114,176		33,560		161,195
Construction, land development and other    land loans	$	766,685	$	138,256	$	64,664	$	269,498	$	55,915	$	238,352
Loans Secured by Nonfarm, Nonresidential Properties by Region
Non-owner occupied:
Retail	$	290,139	$	67,751	$	36,384	$	111,629	$	21,601	$	52,774
Office		232,940		32,747		31,247		78,121		6,212		84,613
Nursing homes/assisted living		97,159		—		—		90,351		6,808		—
Hotel/motel		192,610		46,418		21,482		50,589		25,916		48,205
Mini-storage		111,854		9,070		5,445		53,399		183		43,757
Industrial		88,693		9,498		9,236		24,944		5,254		39,761
Health care		25,162		2,587		837		21,738		—		—
Convenience stores		18,980		1,564		—		10,130		1,030		6,256
Other		70,253		5,814		10,879		22,849		2,841		27,870
Total non-owner occupied loans		1,127,790		175,449		115,510		463,750		69,845		303,236
Owner-occupied:
Office		144,046		15,775		23,995		77,336		6,971		19,969
Churches		86,329		8,785		2,125		44,829		23,370		7,220
Industrial warehouses		126,365		6,409		3,788		60,487		10,553		45,128
Health care		123,856		20,153		6,963		69,296		7,983		19,461
Convenience stores		87,992		7,466		2,375		53,596		1,204		23,351
Retail		35,657		3,983		5,127		20,749		2,048		3,750
Restaurants		32,028		3,593		1,149		21,656		3,529		2,101
Auto dealerships		14,542		8,944		42		4,393		1,163		—
Other		137,548		13,926		3,406		74,691		8,661		36,864
Total owner-occupied loans		788,363		89,034		48,970		427,033		65,482		157,844
Loans secured by nonfarm, nonresidential    properties	$	1,916,153	$	264,483	$	164,480	$	890,783	$	135,327	$	461,080

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Allowance for Loan Losses, LHFI

Trustmark’s allowance for loan loss methodology is based on guidance provided in SEC Staff Accounting Bulletin (SAB) No. 102, “Selected Loan Loss Allowance Methodology and Documentation Issues,” as well as other regulatory guidance.  Trustmark’s allowance has been developed using different factors to estimate losses based upon specific evaluation of identified individual LHFI considered impaired, estimated identified losses on various pools of LHFI and/or groups of risk rated LHFI with common risk characteristics and other external and internal factors of estimated probable losses based on other facts and circumstances.  The level of Trustmark’s allowance reflects Management’s continuing evaluation of specific credit risks, loan loss experience, current loan portfolio growth, present economic, political and regulatory conditions and unidentified losses inherent in the current loan portfolio.  For a complete description of Trustmark’s allowance for loan loss methodology and the quantitative and qualitative factors included in the valuation allowance, please see Note 3 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI included in Part I. Item 1. – Financial Statements – of this report.

At September 30, 2016, the allowance for loan losses, LHFI, was $70.9 million, an increase of $3.3 million, or 4.8%, when compared with December 31, 2015.  The increase in the allowance for loan loss was principally due to an increase in the required qualitative reserve for commercial LHFI across all five of Trustmark’s market regions during the first nine months of 2016, partially offset by a decline in the required specific reserve for impaired LHFI primarily in the Mississippi, Texas and Alabama market regions.  Total allowance coverage of nonperforming LHFI, excluding specifically reviewed impaired LHFI, increased to 256.56% at September 30, 2016, compared to 210.32% at December 31, 2015 due to the increase in the allowance for loan losses, LHFI balance and a decrease in specifically reviewed impaired LHFI during the first nine months of 2016.  Allocation of Trustmark’s $70.9 million allowance for loan losses, LHFI, represented 1.02% of commercial LHFI and 0.68% of consumer and home mortgage LHFI, resulting in an allowance to total LHFI of 0.95% as of September 30, 2016.  This compares with an allowance to total LHFI of 0.95% at December 31, 2015, which was allocated to commercial LHFI at 1.05% and to consumer and mortgage LHFI at 0.66%.

The following tables present changes in the allowance for loan losses, LHFI by geographic market region for the periods presented ($ in thousands):

	Three Months Ended September 30, 2016
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	71,796		$	6,699		$	2,853		$	44,510		$	5,834		$	11,900
LHFI charged-off		(8,279	)		(126	)		(33	)		(3,945	)		(258	)		(3,917	)
Recoveries		3,070			88			202			1,461			184			1,135
Net (charge-offs) recoveries		(5,209	)		(38	)		169			(2,484	)		(74	)		(2,782	)
Provision for loan losses, LHFI		4,284			132			31			703			151			3,267
Balance at end of period	$	70,871		$	6,793		$	3,053		$	42,729		$	5,911		$	12,385

	Three Months Ended September 30, 2015
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	71,166		$	4,671		$	4,074		$	45,436		$	6,734		$	10,251
LHFI charged-off		(11,406	)		(245	)		(101	)		(9,185	)		(677	)		(1,198	)
Recoveries		3,333			82			1,191			1,794			229			37
Net (charge-offs) recoveries		(8,073	)		(163	)		1,090			(7,391	)		(448	)		(1,161	)
Provision for loan losses, LHFI		2,514			(70	)		(1,430	)		4,221			(1,050	)		843
Balance at end of period	$	65,607		$	4,438		$	3,734		$	42,266		$	5,236		$	9,933

	Nine Months Ended September 30, 2016
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	67,619		$	5,469		$	2,766		$	43,184		$	5,230		$	10,970
LHFI charged-off		(14,893	)		(777	)		(459	)		(7,215	)		(972	)		(5,470	)
Recoveries		9,022			240			1,897			5,042			638			1,205
Net (charge-offs) recoveries		(5,871	)		(537	)		1,438			(2,173	)		(334	)		(4,265	)
Provision for loan losses, LHFI		9,123			1,861			(1,151	)		1,718			1,015			5,680
Balance at end of period	$	70,871		$	6,793		$	3,053		$	42,729		$	5,911		$	12,385

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	Nine Months Ended September 30, 2015
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	69,616		$	3,647		$	3,920		$	47,290		$	5,674		$	9,085
LHFI charged-off		(18,688	)		(795	)		(1,579	)		(13,333	)		(1,243	)		(1,738	)
Recoveries		9,347			272			2,158			4,771			906			1,240
Net (charge-offs) recoveries		(9,341	)		(523	)		579			(8,562	)		(337	)		(498	)
Provision for loan losses, LHFI		5,332			1,314			(765	)		3,538			(101	)		1,346
Balance at end of period	$	65,607		$	4,438		$	3,734		$	42,266		$	5,236		$	9,933

Charge-offs exceeded recoveries for the three and nine months ended September 30, 2016 and 2015.  Net charge-offs for the three and nine months ended September 30, 2016 totaled $5.2 million and $5.9 million, a decrease of $2.9 million, or 35.5%, and $3.5 million, or 37.1%, respectively, when compared to the same time periods in 2015.  The decrease in net charge-offs when the three and nine months ended September 30, 2016 is compared to the same time periods in 2015 was primarily due to declines in the net charge-offs in the Mississippi market region, partially offset by an increase in net charge-offs in the Texas market region.  Net charge-offs for the third quarter of 2016 increased $4.7 million when compared to the second quarter of 2016, principally due to the charge off of several substandard credits in Trustmark’s Texas and Mississippi market regions during the third quarter of 2016.

The provision for loan losses, LHFI represents the change in the estimated loan losses determined utilizing Trustmark’s allowance for loan loss methodology net of charge-offs and recoveries of LHFI charged against net income.  The provision for loan losses, LHFI, for the first nine months of 2016 totaled 0.16% of average loans (LHFS and LHFI), compared with 0.11% of average loans (LHFS and LHFI) for the same time period in 2015.  The increase in the provision for loan losses, LHFI for the third quarter of 2016 primarily reflects the net effect of revisions to the allowance for loan loss methodology for LHFI during 2015, growth in the LHFI portfolio and increased required reserves for commercial LHFI, partially offset by a decrease in net charge-offs of LHFI and a decline in the amount of specific reserve required for impaired LHFI, primarily in the Mississippi market region, when compared to the third quarter of 2015.  The increase in the provision for loan losses, LHFI for the first nine months of 2016 primarily reflects the net effect of revisions to the allowance for loan loss methodology for LHFI during 2015 and growth in the LHFI portfolio and an increase in the amount of reserves required related to commercial LHFI in the Mississippi, Texas and Alabama market regions, partially offset by a decreases in the amount of charge-offs as well as specific reserves required related to impaired LHFI in the Mississippi market regions when compared to the first nine months of 2015.  For a complete description of the revisions made to Trustmark’s allowance for loan loss methodology during 2015, please see Note 5 –LHFI and Allowance for Loan Losses, LHFI included in Part II. Item 8. – Financial Statements and Supplementary Data, of Trustmark’s 2015 Annual Report on Form 10-K.

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Nonperforming Assets, Excluding Acquired Loans and Covered Other Real Estate

The table below provides the components of nonperforming assets, excluding acquired loans and covered other real estate, by geographic market region at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016			December 31, 2015
Nonaccrual LHFI
Alabama	$	1,403		$	1,776
Florida		3,719			5,180
Mississippi		41,968			40,754
Tennessee		6,620			5,106
Texas		700			2,496
Total nonaccrual LHFI		54,410			55,312
Other real estate
Alabama		15,574			21,578
Florida		25,147			29,579
Mississippi		16,659			14,312
Tennessee		6,061			9,974
Texas		1,552			1,734
Total other real estate, excluding covered other real estate		64,993			77,177
Total nonperforming assets	$	119,403		$	132,489
Nonperforming assets/total loans (LHFI and LHFS) and ORE		1.53	%		1.81	%
Loans past due 90 days or more
LHFI	$	953		$	2,300
LHFS - Guaranteed GNMA serviced loans (1)	$	25,570		$	21,812

(1) No obligation to repurchase

See the previous discussion of LHFS for more information on Trustmark’s serviced GNMA loans eligible for repurchase and the impact of Trustmark’s repurchases of delinquent mortgage loans under the GNMA optional repurchase program.

Nonaccrual LHFI

At September 30, 2016, nonaccrual LHFI totaled $54.4 million, or 0.70% of total LHFS and LHFI, reflecting a decrease of $902 thousand, or 0.01% of total LHFS and LHFI, relative to December 31, 2015.  The decrease in nonaccrual LHFI was principally the result of substandard credits that were paid off or foreclosed in the Mississippi market region, returned to accrual status in the Florida market region, and charged off in the Mississippi and Texas market regions partially offset by LHFI migrating to nonaccrual status in the Mississippi, Florida and Tennessee market regions during the first nine months of 2016.  LHFI migrating to nonaccrual status in Trustmark’s Mississippi market region totaled approximately $24.1 million during the first nine months of 2016.  Of this total $16.2 million, or 67.1%, represented five substandard credits, three energy-related loans and two healthcare providers.  As of September 30, 2016, nonaccrual energy-related LHFI totaled $12.3 million and represented 4.8% of Trustmark’s total energy-related portfolio.  For additional information regarding nonaccrual LHFI, see the section captioned “Nonaccrual/Impaired LHFI” included in Note 3 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI in Part I. Item 1. – Financial Statements of this report.

Other Real Estate, Excluding Covered Other Real Estate

Other real estate, excluding covered other real estate, at September 30, 2016 decreased $12.2 million, or 15.8%, when compared with December 31, 2015.  The decrease in other real estate, excluding covered other real estate, was primarily due to properties sold in Trustmark’s Florida, Alabama, Mississippi and Tennessee market regions as well as write-downs of properties in Trustmark’s Mississippi, Alabama, and Tennessee market regions partially offset by properties foreclosed in the Florida, Mississippi, Alabama and Tennessee market regions.

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On July 1, 2016, $388 thousand of covered other real estate was transferred to other real estate, excluding covered other real estate, as a result of the expiration of a loss-share agreement with the FDIC on June 30, 2016.  As of September 30, 2016, Trustmark had no covered other real estate.  The remaining loss-share agreement with the FDIC, which covers loans secured by 1-4 family residential properties, will expire in 2021.  Should a loan covered by the remaining loss-share agreement be foreclosed, the related property will be classified as covered other real estate.

The following tables illustrate changes in other real estate, excluding covered other real estate, by geographic market region for the periods presented ($ in thousands):

	Three Months Ended September 30, 2016
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	69,502		$	18,031		$	28,052		$	14,435		$	7,432		$	1,552
Additions		13,748			89			7,534			5,910			215			—
Disposals		(17,586	)		(2,186	)		(10,476	)		(2,888	)		(2,036	)		—
Write-downs		(671	)		(360	)		37			(798	)		450			—
Balance at end of period	$	64,993		$	15,574		$	25,147		$	16,659		$	6,061		$	1,552

	Three Months Ended September 30, 2015
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	90,748		$	21,849		$	31,059		$	14,094		$	9,707		$	14,039
Additions		6,300			3,425			833			1,155			886			1
Disposals		(11,715	)		(1,390	)		(1,577	)		(940	)		(544	)		(7,264	)
Write-downs		(1,378	)		(903	)		59			(288	)		(209	)		(37	)
Adjustments		—			841			—			(841	)		—			—
Balance at end of period	$	83,955		$	23,822		$	30,374		$	13,180		$	9,840		$	6,739

	Nine Months Ended September 30, 2016
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	77,177		$	21,578		$	29,579		$	14,312		$	9,974		$	1,734
Additions		21,972			1,683			10,524			8,819			946			—
Disposals		(30,494	)		(6,544	)		(14,680	)		(5,206	)		(3,882	)		(182	)
Write-downs		(3,662	)		(1,143	)		(276	)		(1,266	)		(977	)		—
Balance at end of period	$	64,993		$	15,574		$	25,147		$	16,659		$	6,061		$	1,552

	Nine Months Ended September 30, 2015
	Total			Alabama			Florida			Mississippi			Tennessee			Texas
Balance at beginning of period	$	92,509		$	21,196		$	35,324		$	17,397		$	10,292		$	8,300
Additions		26,832			9,043			4,565			3,248			1,079			8,897
Disposals		(33,015	)		(6,534	)		(8,492	)		(6,195	)		(1,373	)		(10,421	)
Write-downs		(2,371	)		(724	)		(1,023	)		(429	)		(158	)		(37	)
Adjustments		—			841			—			(841	)		—			—
Balance at end of period	$	83,955		$	23,822		$	30,374		$	13,180		$	9,840		$	6,739

Other real estate is revalued on an annual basis or more often if market conditions necessitate.  Subsequent to foreclosure, losses on the periodic revaluation of the property are charged against the reserve for other real estate write-downs or net income in other real estate expense, if a reserve does not exist.  Write-downs of other real estate, excluding covered other real estate, increased $1.3 million, or 54.5%, when the first nine months of 2016 is compared to the same time period in 2015.  The increase in write-downs on other real estate, excluding covered other real estate, during the first nine months of 2016 compared to the same time period in 2015 was primarily due to $1.6 million of reserves for other real estate write-downs used or released during the first nine months of 2015 in the Alabama, Tennessee and Mississippi market regions.

Other real estate in Trustmark’s Florida market region included $8.4 million of BancTrust properties foreclosed during the first nine months of 2016, $349 thousand of write-downs of BancTrust other real estate and the sale of $10.7 million of BancTrust other real estate in Florida during the first nine months of 2016.  Excluding other real estate resulting from the BancTrust merger, other real estate, excluding covered other real estate, decreased $3.3 million during the first nine months of 2016.  During the third quarter of 2016, Trustmark foreclosed $7.5 million of BancTrust properties in the Florida market region, which principally consisted of two commercial properties totaling $7.2 million.  Trustmark subsequently sold one of these properties which totaled $6.0 million during the third quarter of 2016.

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For additional information regarding other real estate, including covered other real estate, see Note 6 – Other Real Estate and Covered Other Real Estate included in Part I. Item 1. – Financial Statements of this report.

Acquired Loans

As of September 30, 2016 and December 31, 2015, acquired loans consisted of the following ($ in thousands):

	September 30, 2016				December 31, 2015
	Noncovered		Covered (1)		Noncovered		Covered
Loans secured by real estate:
Construction, land development and other land	$	25,040	$	—	$	41,623	$	1,021
Secured by 1-4 family residential properties		72,689		3,912		86,950		10,058
Secured by nonfarm, nonresidential properties		110,606		—		135,626		4,638
Other real estate secured		20,903		—		23,860		1,286
Commercial and industrial loans		39,519		—		55,075		624
Consumer loans		3,878		—		5,641		—
Other loans		19,190		—		23,936		73
Acquired loans		291,825		3,912		372,711		17,700
Less allowance for loan losses, acquired loans		11,330		50		11,259		733
Net acquired loans	$	280,495	$	3,862	$	361,452	$	16,967

(1)Effective July 1, 2016, all acquired covered loans excluding the covered acquired loans secured by 1-4 family residential properties were reclassified to noncovered acquired loans.

Trustmark’s loss share agreement with the FDIC covering the acquired loans other than loans secured by 1-4 family residential properties expired on June 30, 2016.  Trustmark’s loss share agreement with the FDIC covering the acquired loans secured by 1-4 family residential properties will expire in 2021.  Effective July 1, 2016, all covered acquired loans excluding the covered acquired loans secured by 1-4 family residential properties were reclassified to noncovered acquired loans.

During the first nine months of 2016, noncovered and covered acquired loans declined $80.9 million, or 21.7%, and $13.8 million, or 77.9%, respectively, compared to balances at December 31, 2015.  The decrease in noncovered acquired loans during the first nine months of 2016 was primarily the result of pay-downs and pay-offs of these acquired loans partially offset by the covered acquired loans reclassified to noncovered acquired loans as a result of the expiration of the related loss share agreement with the FDIC.  Total acquired loans declined $94.7 million, or 24.3%, during the first nine months of 2016.  Based on the most recent re-estimation of expected cash flows, Trustmark anticipates that acquired loan balances, excluding any settlement of debt, will decline approximately $25.0 million to $30.0 million during the fourth quarter of 2016.  Trustmark also expects the yield on the acquired loans, excluding any recoveries, to be approximately 5.5% to 6.5% for the fourth quarter of 2016.  As the balances in the acquired loan portfolio continue to run-off, Trustmark expects that the income benefit provided by this portfolio will also decline.  For additional information regarding acquired loans, including changes in the net carrying value, see Note 4 – Acquired Loans included in Part I. Item 1. – Financial Statements of this report.

Deposits

Trustmark’s deposits are its primary source of funding and consist of core deposits from the communities Trustmark serves.  Deposits include interest-bearing and noninterest-bearing demand accounts, savings, money market, certificates of deposit and individual retirement accounts.  Total deposits were $9.686 billion at September 30, 2016 compared to $9.588 billion at December 31, 2015, an increase of $97.5 million, or 1.0%.  During the first nine months of 2016, noninterest-bearing deposits increased $112.9 million, or 3.8%, primarily due to growth in commercial demand deposit accounts partially offset by seasonal declines in public demand deposit accounts, while interest-bearing deposits decreased $15.4 million, or 0.2%, primarily due to declines in interest-bearing demand deposit accounts and certificates of deposit.  The increase in commercial demand deposit accounts during the first nine months of 2016 was principally due to growth in commercial regular demand deposit accounts, which was largely due to a large sale completed by a commercial customer during the third quarter of 2016.

79

Short-term Borrowings

Trustmark uses short-term borrowings to fund growth of earning assets in excess of deposit growth.  Short-term borrowings consist primarily of federal funds purchased, securities sold under repurchase agreements, short-term FHLB advances and GNMA optional repurchase loans.  Short-term borrowings totaled $927.7 million at September 30, 2016, an increase of $74.1 million, or 8.7%, when compared with $853.7 million at December 31, 2015 as a result of the increase in earning assets, principally LHFI, out-pacing the growth in deposits.  Federal funds purchased and securities sold under repurchase agreements totaled $514.9 million at September 30, 2016 compared to $441.0 million at December 31, 2015, an increase of $73.9 million, or 16.8%.  Of these amounts $176.9 million and $144.0 million, respectively, represented customer related transactions, such as commercial sweep repurchase balances.  Excluding customer related transactions, federal funds purchased totaled $338.0 million at September 30, 2016, an increase of $41.0 million when compared with $297.0 million at December 31, 2015 as Trustmark has chosen to use this attractively priced funding source.  Other short-term borrowings decreased $175 thousand during the first nine months of 2016.

Long-term FHLB Advances

Long-term FHLB advances totaled $751.1 million at September 30, 2016, an increase of $249.9 million, or 49.9%, when compared with $501.2 million at December 31, 2015.  During the second quarter of 2016, Trustmark obtained a $250.0 million long-term FHLB advance from the FHLB of Dallas.  Similar to the long-term advance obtained in December 2015, the advance has a variable rate and a two-year maturity.  Trustmark chose to utilize these long-term advances as a funding source due to the advantageous rates available in comparison to other sources of funding.

Defined Benefit Plans

As disclosed in Note 9 – Defined Benefit and Other Postretirement Benefits included in Part I. Item 1. – Financial Statements of this report, Trustmark maintains a noncontributory tax-qualified defined benefit pension plan (the Plan), in which substantially all associates who began employment 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.  Benefit accruals under the plan have been frozen since 2009, with the exception of certain associates covered through plans obtained in acquisitions that were subsequently merged into the Plan.  Other than the associates covered through these acquired plans that were merged into the Plan, associates have not earned additional benefits, except for interest as required by law, since the Plan was frozen.  Current and former associates who participate in the Plan retain their right to receive benefits that accrued before the Plan was frozen.

On July 26, 2016, the Board of Directors of Trustmark authorized the termination of the Plan, effective as of December 31, 2016.  To satisfy commitments made by Trustmark to associates covered through acquired plans that were merged into the Plan (collectively, the “Continuing Associates”), the Board of Directors also approved the spin-off of the portion of the Plan associated with the accrued benefits of the Continuing Associates into a new plan titled the Trustmark Corporation Pension Plan for Certain Employees of Acquired Financial Institutions (the “Spin-Off Plan”), effective as of December 31, 2016, immediately prior to the termination of the Plan.    

In order to terminate the Plan, in accordance with Internal Revenue Service and Pension Benefit Guaranty Corporation (PBGC) requirements, Trustmark is required to fully fund the Plan on a termination basis and will contribute the additional assets necessary to do so.  Based on plan assets and PBGC rules as of June 30, 2016, Trustmark estimates that termination of the Plan would require approximately $67.0 million (after giving effect to the necessary transfer of plan assets to the Spin-Off Plan) to fully fund the Plan on a termination basis and would result in a one-time pension settlement expense of approximately $12.0 million.  Further, as a result of Trustmark’s de-risking investment strategy for the Plan as of June 30, 2016, the expected rate of return on plan assets during the second half of 2016 will be decreased from 6% to 2.5%.  Accordingly, Trustmark’s increased periodic benefit costs for the Plan during the third quarter of 2016 was $664 thousand.  Trustmark expects final distributions for the Plan to be made during the second quarter of 2017.  Participants in the Plan will have a choice of receiving a lump sum cash payment or annuity payments under a group annuity contract purchased from an insurance carrier, subject to certain exceptions.  As a result of the termination of the Plan, each participant will become fully vested in his or her accrued benefits under the Plan.

After the distribution of plan assets and termination of the Plan during the second quarter of 2017, Trustmark estimates that its projected benefit obligation and annual pension expense related to the Spin-Off Plan will be approximately $10.0 million and $900 thousand, respectively.  As a result of these actions, Trustmark estimates that annual pension expense will be reduce by approximately $3.0 million to $4.0 million.

The Board of Directors reserved the right to defer or revoke the termination of the Plan if circumstances change such that deferral or revocation would be warranted, but has no intent to do so at this time.

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Legal Environment

Information required in this section is set forth under the heading “Legal Proceedings” of Note 11 – Contingencies included in Part I. Item 1. – Financial Statements – of this report.

Off-Balance Sheet Arrangements

Information required in this section is set forth under the heading “Lending Related” of Note 11 – Contingencies included in Part I. Item 1. – Financial Statements – of this report.

Contractual Obligations

Payments due from Trustmark under specified long-term and certain other binding contractual obligations were scheduled in our Annual Report on Form 10-K for the year ended December 31, 2015.  The most significant obligations, other than obligations under deposit contracts and short-term borrowings, were for operating leases for banking facilities.  There have been no material changes in Trustmark’s contractual obligations since year-end.

Capital Resources

At September 30, 2016, Trustmark’s total shareholders’ equity was $1.535 billion, an increase of $61.7 million, or 4.2%, from its level at December 31, 2015.  During the first nine months of 2016, shareholders’ equity increased primarily as a result of net income of $79.5 million and an increase in the net unrealized gains on available for sale securities of $20.0 million, net of tax, partially offset by common stock dividends of $46.9 million.  Trustmark utilizes a capital model in order to provide Management with a monthly tool for analyzing changes in its strategic capital ratios.  This allows Management to hold sufficient capital to provide for growth opportunities and protect the balance sheet against sudden adverse market conditions, while maintaining an attractive return on equity to shareholders.

Regulatory Capital

Trustmark and TNB are subject to minimum risk-based capital and leverage capital requirements, as described in the section captioned “Capital Adequacy” included in Part I. Item 1. – Business of Trustmark’s 2015 Annual Report on Form 10-K, 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.  Effective January 1, 2016, Trustmark’s and TNB’s minimum risk-based capital requirements include the year-one phased in capital conservation buffer of 0.625%.  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 and limit Trustmark’s and TNB’s ability to pay dividends.  As of September 30, 2016, Trustmark and TNB exceeded all applicable minimum capital standards.  In addition, Trustmark and TNB met applicable regulatory guidelines to be considered well-capitalized at September 30, 2016.  To be categorized in this manner, Trustmark and TNB maintained minimum common equity Tier 1 risk-based capital, Tier 1 risk-based capital, total risk-based capital and Tier 1 leverage ratios, and were not subject to any written agreement, order or capital directive, or prompt corrective action directive issued by their primary federal regulators to meet and maintain a specific capital level for any capital measures.  There are no significant conditions or events that have occurred since September 30, 2016, which Management believes have affected Trustmark’s or TNB’s present classification.

In 2006, Trustmark enhanced its capital structure with the issuance of trust preferred securities and Subordinated Notes (the Notes).  For regulatory capital purposes, the trust preferred securities currently qualify as Tier 1 capital.  Trustmark intends to continue to utilize $60.0 million in trust preferred securities issued by Trustmark Preferred Capital Trust I (the Trust) as Tier 1 capital up to the regulatory limit, as permitted by the grandfather provision in the Dodd-Frank Act and the Basel III Final Rule.

Refer to the section captioned “Regulatory Capital” included in Note 14 – Shareholders’ Equity in Part I. Item 1. – Financial Statements of this report for an illustration of Trustmark’s and TNB’s actual regulatory capital amounts and ratios under regulatory capital standards in effect at September 30, 2016 and December 31, 2015.

Dividends on Common Stock

Dividends per common share for the nine months ended September 30, 2016 and 2015 were $0.69.  Trustmark’s indicated dividend for 2016 is $0.92 per common share, which is the same as dividends per common share in 2015.

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Liquidity

Liquidity is the ability to ensure that sufficient cash flow and liquid assets are available to satisfy current and future financial obligations, including demand for loans and deposit withdrawals, funding operating costs and other corporate purposes.  Consistent cash flows from operations and adequate capital provide internally generated liquidity.  Furthermore, Management maintains funding capacity from a variety of external sources to meet daily funding needs, such as those required to meet deposit withdrawals, loan disbursements and security settlements.  Liquidity strategy also includes the use of wholesale funding sources to provide for the seasonal fluctuations of deposit and loan demand and the cyclical fluctuations of the economy that impact the availability of funds.  Management keeps excess funding capacity available to meet potential demands associated with adverse circumstances.

The asset side of the balance sheet provides liquidity primarily through maturities and cash flows from loans and securities as well as the ability to sell certain loans and securities while the liability portion of the balance sheet provides liquidity primarily through noninterest and interest-bearing deposits.  Trustmark utilizes federal funds purchased, FHLB advances, securities sold under repurchase agreements as well as the Federal Reserve Discount Window (Discount Window) and, on a limited basis as discussed below, brokered deposits to provide additional liquidity.  Access to these additional sources represents Trustmark’s incremental borrowing capacity.

Deposit accounts represent Trustmark’s largest funding source.  Average deposits totaled to $9.635 billion for the first nine months of 2016 and represented approximately 75.0% of average liabilities and shareholders’ equity, compared to average deposits of $9.691 billion, which represented 79.5% of average liabilities and shareholders’ equity for the first nine months of 2015.

Trustmark utilizes a limited amount of brokered deposits to supplement other wholesale funding sources.  At September 30, 2016, brokered sweep Money Market Deposit Account (MMDA) deposits totaled $33.8 million compared to $42.3 million at December 31, 2015.

At September 30, 2016, Trustmark had $338.0 million in upstream federal funds purchased, compared to $297.0 million at December 31, 2015.  Trustmark maintains adequate federal funds lines to provide sufficient short-term liquidity.  The increase in upstream federal funds purchased was primarily the result of the increase in earning assets out-pacing the growth in deposits as Trustmark chose to utilize this attractively priced funding source.  

Trustmark also maintains a relationship with the FHLB of Dallas, which provided $350.0 million of outstanding short-term advances and $750.0 million of outstanding long-term advances at September 30, 2016, compared to $350.0 million of outstanding short-term advances and $500.0 million of outstanding long-term advances at December 31, 2015.  Trustmark has chosen to utilize the long-term FHLB advances with the FHLB of Dallas as a funding source due to the advantageous rates available in comparison to other sources of funding.  Under the existing borrowing agreement, Trustmark had sufficient qualifying collateral to increase FHLB advances with the FHLB of Dallas by $1.455 billion at September 30, 2016.  In addition, at September 30, 2016, Trustmark had $1.1 million in FHLB advances outstanding with the FHLB of Atlanta, which were acquired in the BancTrust merger, compared to $1.2 million at December 31, 2015.  Trustmark has non-member status and thus no additional borrowing capacity with the FHLB of Atlanta.

Additionally, Trustmark has the ability to enter into wholesale funding repurchase agreements as a source of borrowing by utilizing its unencumbered investment securities as collateral.  At September 30, 2016, Trustmark had approximately $1.575 billion available in repurchase agreement capacity compared to $1.194 billion at December 31, 2015.  The increase in repurchase agreement capacity at September 30, 2016, was primarily due to an increase in the unencumbered investment portfolio balance resulting from a lower public deposit pledge requirement and the seasonal decline in public deposits.

Another borrowing source is the Discount Window.  At September 30, 2016, Trustmark had approximately $967.5 million available in collateral capacity at the Discount Window primarily from pledges of commercial and industrial LHFI, compared with $883.7 million at December 31, 2015.

TNB has outstanding $50.0 million in aggregate principal amount of the Notes due December 15, 2016.  At September 30, 2016, the carrying amount of the Notes was $50.0 million.  The Notes are unsecured and subordinate and junior in right of payment to TNB’s obligations to its depositors, its obligations under bankers’ acceptances and letters of credit, its obligations to any Federal Reserve Bank or the FDIC and its obligations to its other creditors, and to any rights acquired by the FDIC as a result of loans made by the FDIC to TNB.

During 2006, Trustmark completed a private placement of $60.0 million of trust preferred securities through a newly formed Delaware trust affiliate, the Trust.  The trust preferred securities mature September 30, 2036 and are redeemable at Trustmark’s option.  The proceeds from the sale of the trust preferred securities were used by the Trust to purchase $61.9 million in aggregate principal amount of Trustmark’s junior subordinated debentures.

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The Board of Directors of Trustmark currently has the authority to issue up to 20.0 million preferred shares with no par value.  The ability to issue preferred shares in the future will provide Trustmark with additional financial and management flexibility for general corporate and acquisition purposes.  At September 30, 2016, Trustmark had no shares of preferred stock issued and outstanding.

Liquidity position and strategy are reviewed regularly by Management and continuously adjusted in relationship to Trustmark’s overall strategy.  Management believes that Trustmark has sufficient liquidity and capital resources to meet presently known cash flow requirements arising from ongoing business transactions.

Asset/Liability Management

Overview

Market risk reflects the potential risk of loss arising from adverse changes in interest rates and market prices.  Trustmark has risk management policies to monitor and limit exposure to market risk.  Trustmark’s primary market risk is interest rate risk created by core banking activities.  Interest rate risk is the potential variability of the income generated by Trustmark’s financial products or services, which results from changes in various market interest rates.  Market rate changes may take the form of absolute shifts, variances in the relationships between different rates and changes in the shape or slope of the interest rate term structure.

Management continually develops and applies cost-effective strategies to manage these risks.  Management’s Asset/Liability Committee sets the day-to-day operating guidelines, approves strategies affecting net interest income and coordinates activities within policy limits established by the Board of Directors of Trustmark.  A key objective of the asset/liability management program is to quantify, monitor and manage interest rate risk and to assist Management in maintaining stability in the net interest margin under varying interest rate environments.

Derivatives

Trustmark uses financial derivatives for management of interest rate risk.  Management’s Asset/Liability Committee, in its oversight role for the management of interest rate risk, approves the use of derivatives in balance sheet hedging strategies.  The most common derivatives employed by Trustmark are interest rate lock commitments, forward contracts (both futures contracts and options on futures contracts), interest rate swaps, interest rate caps and interest rate floors.  As a general matter, the values of these instruments are designed to be inversely related to the values of the assets that they hedge (i.e., if the value of the hedged asset falls, the value of the related hedge rises).  In addition, Trustmark has entered into derivatives contracts as counterparty to one or more customers in connection with loans extended to those customers.  These transactions are designed to hedge interest rate, currency or other exposures of the customers and are not entered into by Trustmark for speculative purposes.  Increased federal regulation of the derivatives markets may increase the cost to Trustmark to administer derivatives programs.

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 the Trust 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, which became effective on December 31, 2014, Trustmark pays a fixed interest rate of 1.66% per annum and receives 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, 2016 and 2015.  The accumulated net after-tax loss related to the effective cash flow hedge included in AOCL totaled $708 thousand and $160 thousand at September 30, 2016 and December 31, 2015, respectively.  Amounts reported in AOCL related to this derivative are reclassified to other interest expense as interest payments are made on Trustmark’s variable rate junior subordinated debentures.  During the next twelve months, Trustmark estimates that $442 thousand will be reclassified as an increase to other interest expense.

As part of Trustmark’s risk management strategy in the mortgage banking business, various derivative instruments such as interest rate lock commitments and forward sales contracts are utilized.  Rate lock commitments are residential mortgage loan commitments with customers, which guarantee a specified interest rate for a specified period of time.  Trustmark’s obligations under forward contracts consist of commitments to deliver mortgage loans, originated and/or purchased, in the secondary market at a future date.  The gross notional amount of Trustmark’s off-balance sheet obligations under these derivative instruments totaled $497.2 million at September 30, 2016, with a positive valuation adjustment of $1.6 million, compared to $298.6 million, with a positive valuation adjustment of $1.4 million at December 31, 2015.

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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 fair value of the MSR attributable to interest rates.  These transactions are considered freestanding derivatives that do not otherwise qualify for hedge accounting under GAAP.  The total notional amount of these derivative instruments were $338.5 million at September 30, 2016 compared to $264.5 million at December 31, 2015.  These exchange-traded derivative instruments are accounted for at fair value with changes in the fair value recorded in noninterest income in mortgage banking, net and are offset by the changes in the fair value of the MSR.  The MSR fair value represents the present value of future cash flows, which among other things includes decay and the effect of changes in interest rates.  Ineffectiveness of hedging the MSR fair value is measured by comparing the change in value of hedge instruments to the change in the fair value of the MSR asset attributable to changes in interest rates and other market driven changes in valuation inputs and assumptions.  The impact of this strategy resulted in a net negative ineffectiveness of $1.2 million compared to a net positive ineffectiveness of $479 thousand for the three months ended September 30, 2016 and 2015, respectively, and a net negative ineffectiveness of $2.7 million compared to a net positive ineffectiveness of $3.9 million for the nine months ended September 30, 2016 and 2015, respectively.  The net negative ineffectiveness was primarily due to the tightening in the mortgage spread during the first nine months of 2016 compared the same time period in 2015.

Trustmark offers certain interest rate derivatives products directly to qualified commercial lending clients seeking to manage their interest rate risk under loans they have entered into with TNB.  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.  Derivatives transactions executed as part of this program are not designated as qualifying hedging relationships under GAAP and are, therefore, carried on Trustmark’s financial statements 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, 2016, Trustmark had interest rate swaps with an aggregate notional amount of $350.3 million related to this program, compared to $359.3 million as of December 31, 2015.

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 deemed to be in default on its derivatives obligations.

As of September 30, 2016 and December 31, 2015, 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 $5.9 million and $2.6 million, respectively.  As of September 30, 2016, Trustmark had posted collateral of $5.8 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, 2016, it could have been required to settle its obligations under the agreements at the termination value (which is expected to approximate fair market 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.  At both September 30, 2016 and December 31, 2015, Trustmark had entered into two risk participation agreements as a beneficiary with an aggregate notional amount of $14.3 million and $14.8 million, respectively.  At September 30, 2016, Trustmark had entered into five risk participation agreements as a guarantor with an aggregate notional amount of $28.6 million compared to one risk participation agreement as a guarantor with an aggregate notional amount of $5.9 million at December 31, 2015.  The aggregate fair values of these risk participation agreements were immaterial at September 30, 2016 and December 31, 2015.

Trustmark’s participation in the derivatives markets is subject to increased federal regulation of these markets.  Trustmark believes that it may continue to use financial derivatives to manage interest rate risk and also to offer derivatives products to certain qualified commercial lending clients in compliance with the Volcker Rule.  However, the increased federal regulation of the derivatives markets has increased the cost to Trustmark of administering its derivatives programs.  Some of these costs (particularly compliance costs related to the Volcker Rule and other federal regulations) are expected to recur in the future.

Market/Interest Rate Risk Management

The primary purpose in managing interest rate risk is to invest capital effectively and preserve the value created by the core banking business.  This is accomplished through the development and implementation of lending, funding, pricing and hedging strategies designed to maximize net interest income performance under varying interest rate environments subject to specific liquidity and interest rate risk guidelines.

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Financial simulation models are the primary tools used by Management’s Asset/Liability Committee to measure interest rate exposure.  Using a wide range of scenarios, Management is provided with extensive information on the potential impact on net interest income caused by changes in interest rates.  Models are structured to simulate cash flows and accrual characteristics of Trustmark’s balance sheet.  Assumptions are made about the direction and volatility of interest rates, the slope of the yield curve and the changing composition of Trustmark’s balance sheet, resulting from both strategic plans and customer behavior.  In addition, the model incorporates Management’s assumptions and expectations regarding such factors as loan and deposit growth, pricing, prepayment speeds and spreads between interest rates.

Based on the results of the simulation models using static balances, the table below summarizes the effect various one-year interest rate shift scenarios would have on net interest income compared to a base case, flat scenario at September 30, 2016 and 2015.  At September 30, 2016 and 2015, the impact of a 200 basis point drop scenario was not calculated due to the low interest rate environment.

	Estimated % Change in Net Interest Income
Change in Interest Rates	2016			2015
+200 basis points		1.0	%		-0.5	%
+100 basis points		0.7	%		-0.3	%
-100 basis points		-6.8	%		-4.8	%

As shown in the table above, the interest rate shocks for the first nine months of 2016 illustrate little change in net interest income in rising rate scenarios while displaying modest exposure to a falling rate environment.  The exposure to falling rates is primarily due to a downward repricing of various earning assets with minimal contribution from liabilities given the already low cost of deposits in the base scenario.  Management cannot provide any assurance about the actual effect of changes in interest rates on net interest income.  The estimates provided do not include the effects of possible strategic changes in the balances of various assets and liabilities throughout 2016 or additional actions Trustmark could undertake in response to changes in interest rates.  Management will continue to prudently manage the balance sheet in an effort to control interest rate risk and maintain profitability over the long term.

Another component of interest rate risk management is measuring the economic value-at-risk for a given change in market interest rates.  The economic value-at-risk may indicate risks associated with longer-term balance sheet items that may not affect net interest income at risk over shorter time periods.  Trustmark uses computer-modeling techniques to determine the present value of all asset and liability cash flows (both on- and off-balance sheet), adjusted for prepayment expectations, using a market discount rate.  The economic value of equity (EVE), also known as net portfolio value, is defined as the difference between the present value of asset cash flows and the present value of liability cash flows.  The resulting change in EVE in different market rate environments, from the base case scenario, is the amount of EVE at risk from those rate environments.  The following table summarizes the effect that various interest rate shifts would have on net portfolio value at September 30, 2016 and 2015.  At September 30, 2016 and 2015, the impact of a 200 basis point drop scenario was not calculated due to the historically low interest rate environment.

	Estimated % Change in Net Portfolio Value
Change in Interest Rates	2016			2015
+200 basis points		6.2	%		1.8	%
+100 basis points		4.1	%		1.6	%
-100 basis points		-10.4	%		-7.7	%

Trustmark determines the fair value of the MSR using a valuation model administered by a third party that calculates the present value of estimated future net servicing income.  The model incorporates assumptions that market participants use in estimating future net servicing income, including estimates of prepayment speeds, discount rate, default rates, cost to service (including delinquency and foreclosure costs), escrow account earnings, contractual servicing fee income and other ancillary income such as late fees.  Management reviews all significant assumptions quarterly.  Mortgage loan prepayment speeds, a key assumption in the model, is the annual rate at which borrowers are forecasted to repay their mortgage loan principal.  The discount rate used to determine the present value of estimated future net servicing income, another key assumption in the model, is an estimate of the required rate of return investors in the market would require for an asset with similar risk.  Both assumptions can, and generally will, change as market conditions and interest rates change.

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By way of example, an increase in either the prepayment speed or discount rate assumption will result in a decrease in the fair value of the MSR, while a decrease in either assumption will result in an increase in the fair value of the MSR.  In recent years, there have been significant market-driven fluctuations in loan prepayment speeds and discount rates.  These fluctuations can be rapid and may continue to be significant.  Therefore, estimating prepayment speed and/or discount rates within ranges that market participants would use in determining the fair value of the MSR requires significant management judgment.

At September 30, 2016, the MSR fair value was approximately $65.5 million, compared to $69.8 million at September 30, 2015.  The impact on the MSR fair value of a 10% adverse change in prepayment speed or a 100 basis point increase in discount rate at September 30, 2016, would be a decline in fair value of approximately $2.7 million and $2.0 million, respectively, compared to a decline in fair value of approximately $2.5 million and $2.4 million, respectively, at September 30, 2015.  Changes of equal magnitude in the opposite direction would produce similar increases in fair value in the respective amounts.

Critical Accounting Policies

For an overview of Trustmark’s critical accounting policies, see the section captioned “Critical Accounting Policies” included in Part II. Item 7. – Management’s Discussion and Analysis of Financial Condition and Results of Operations, of Trustmark’s 2015 Annual Report on Form 10-K.  There have been no significant changes in Trustmark’s critical accounting policies during the first nine months of 2016.

For additional information regarding Trustmark’s basis of presentation and accounting policies, see Note 1 – Business, Basis of Financial Statement Presentation and Principles of Consolidation included in Part I. Item 1. – Financial Statements of this report.

Accounting Policies Recently Adopted and Pending Accounting Pronouncements

For a complete list of recently adopted and pending accounting policies and the impact on Trustmark, see Note 18 – Accounting Policies Recently Adopted and Pending Accounting Pronouncements included in Part I. Item 1. – Financial Statements – of this report.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information required by this item is included in the discussion of Market/Interest Rate Risk Management found in Management’s Discussion and Analysis.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, an evaluation was carried out by Trustmark’s Management, with the participation of its Chief Executive Officer and Treasurer and Principal Financial Officer (Principal Financial Officer), of the effectiveness of Trustmark’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934). Based on that evaluation, the Chief Executive Officer and the Principal Financial Officer concluded that Trustmark’s disclosure controls and procedures were effective as of the end of the period covered by this report.

Changes in Internal Control over Financial Reporting

There has been no change in Trustmark’s internal control over financial reporting during the last fiscal quarter that has materially affected, or is reasonably likely to materially affect, Trustmark’s internal control over financial reporting.

PART II.    OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Trustmark’s wholly-owned subsidiary, TNB, has been named as a defendant in three 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 (collectively, Class Plaintiffs), 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

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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.  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 a second 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.  In March 2015, the court entered an order authorizing the parties to conduct discovery regarding class certification and setting a deadline for the parties to complete briefing on class certification issues.  In April 2015, the court granted in part and denied in part the defendants’ motions to dismiss the Class Plaintiffs’ claims and the OSIC’s claims.  The court dismissed all of the Class Plaintiffs’ fraudulent transfer claims and dismissed certain of the OSIC’s claims.  The court denied the motions by TNB and the other financial institution defendants to dismiss the OSIC’s constructive fraudulent transfer claims.  

On June 23, 2015, the court allowed the Class Plaintiffs to file a Second Amended Class Action Complaint (SAC), which asserted new claims against TNB and certain of the other defendants for (i) aiding, abetting and participating in a fraudulent scheme, (ii) aiding, abetting and participating in violations of the Texas Securities Act, (iii) aiding, abetting and participating in breaches of fiduciary duty, (iv) aiding, abetting and participating in conversion and (v) conspiracy.  On July 14, 2015, the defendants (including TNB) filed motions to dismiss the SAC and to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims against TNB and the other financial institutions that are defendants in the action.  On July 27, 2016, the court denied the motion by TNB and the other financial institution defendants to dismiss the SAC and also denied the motion by TNB and the other financial institution defendants to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims.  On August 24, 2016, TNB filed its answer to the SAC.

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.

On April 11, 2016, Trustmark learned that a third Stanford-related lawsuit had been filed on April 11, 2016 in the Superior Court of Justice in Ontario, Canada, by The Toronto-Dominion Bank (“TD Bank”), naming TNB and three other financial institutions not affiliated with Trustmark as defendants.  The complaint seeks a declaration specifying the degree to which each of TNB and the other defendants are liable in respect of any loss and damage for which TD Bank is found to be liable in a litigation commenced against TD Bank brought by the Joint Liquidators of Stanford International Bank Limited in the Superior Court of Justice, Commercial List in Ontario, Canada (the “Joint Liquidators’ Action”), as well as contribution and indemnity in respect of any judgment, interest and costs TD Bank is ordered to pay in the Joint Liquidators’ Action.  To date, TNB has not been served in connection with this action.

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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.  All Stanford-related lawsuits are in pre-trial stages.

TNB has been named as a defendant in two separately filed but now consolidated lawsuits involving two testamentary trusts created in the will of Kathleen Killebrew Paine for her two children, Carolyn Paine Davis and W.K. Paine.  TNB is named as the Trustee in both trusts.  The lawsuits were filed on June 30, 2014 in the Chancery Court of the First Judicial District of Hinds County, Mississippi by Jennifer Davis Michael, Elizabeth Paine Lindigrin, Wilmer Harrison Paine, Kenneth Whitworth Paine, Robert Harvey Paine and Nathan Davis, who are all children of Mrs. Davis and Mr. Paine.  The complaints allege that the plaintiffs are vested current beneficiaries of the respective trusts; that the plaintiffs should have been entitled to be considered for distributions of trust income; and that the interests of Mrs. Davis and Mr. Paine were favored over plaintiffs’ interest in both the distribution of income and in the making of trust investments.  Plaintiffs seek compensatory damages, refund of trust fees and sweep fees, punitive damages, attorneys’ fees and pre- and post-judgment interest.  On March 9, 2015, the court granted TNB’s motion to add Mrs. Davis and Mr. W.K. Paine as cross-defendants.  Following a bench trial that concluded on January 20, 2016, the judge ordered the parties to enter into mandatory mediation.  On February 22, 2016, the mediator reported to the judge that the mediation had failed to resolve the matter.  All post-trial briefings have been completed by the parties and submitted to the court.  The judge will consider those submissions and then enter a ruling on the case at some point in the future.

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 accordance FASB Accounting Standards Codification (ASC) Topic 450-20, “Loss Contingencies,” Trustmark will establish an accrued liability for litigation matters when those matters present loss contingencies that are both probable and reasonably estimable.  At the present time, Management believes, based on the advice of legal counsel and Management’s evaluation, that a loss in any such proceeding is not both probable and reasonably estimable.  All matters will continue to be monitored for further developments that would make such loss contingency both probable and reasonably estimable.  In view of the inherent difficulty of predicting the outcome of legal proceedings, Trustmark cannot predict the eventual outcomes of the currently pending matters or the timing of their ultimate resolution.  Management currently believes, however, based upon the advice of legal counsel and Management’s evaluation and after taking into account its current insurance coverage, that the legal proceedings currently pending should not have a material adverse effect on Trustmark’s consolidated financial condition.

ITEM 1A. RISK FACTORS

There has been no material change in the risk factors previously disclosed in Trustmark’s Annual Report on Form 10-K for its fiscal year ended December 31, 2015.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

On March 11, 2016, the Board of Directors of Trustmark authorized a stock repurchase program under which up to $100.0 million of Trustmark’s common shares may be acquired through March 31, 2019.  The following table provides information with respect to purchases by Trustmark or made on behalf of Trustmark of its common stock during the three months ended September 30, 2016 ($ in thousands, except per share amounts):

Period	Total Number of Shares Purchased		Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plan		Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plan at the End of the Period
July 1, 2016 to July 31, 2016		—	$	—		—	$	99,250
August 1, 2016 to August 31, 2016		—		—		—		99,250
September 1, 2016 to September 30, 2016		—		—		—		99,250
Total		—	$	—		—

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None

88

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable

ITEM 5. OTHER INFORMATION

None

ITEM 6. EXHIBITS

The exhibits listed in the Exhibit Index are filed herewith or are incorporated herein by reference.

EXHIBIT INDEX

31-a	Certification by Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31-b	Certification by Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32-a	Certification by Chief Executive Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32-b	Certification by Principal Financial Officer pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	XBRL Interactive Data.

All other exhibits are omitted, as they are inapplicable or not required by the related instructions.

89

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

TRUSTMARK CORPORATION

BY:	/s/ Gerard R. Host	BY:	/s/ Louis E. Greer
	Gerard R. Host		Louis E. Greer
	President and Chief Executive Officer		Treasurer, Principal Financial Officer and
			Principal Accounting Officer
DATE:	November 4, 2016	DATE:	November 4, 2016

90

EX-31.A

Exhibit 31-a

TRUSTMARK CORPORATION

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Gerard R. Host, certify that:

1) I have reviewed this quarterly report on Form 10-Q of Trustmark Corporation;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

BY:	/s/ Gerard R. Host
	Gerard R. Host
	President and Chief Executive Officer
DATE:	November 4, 2016

EX-31.B

Exhibit 31-b

TRUSTMARK CORPORATION

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Louis E. Greer, certify that:

1) I have reviewed this quarterly report on Form 10-Q of Trustmark Corporation;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

BY:	/s/ Louis E. Greer
	Louis E. Greer
	Treasurer, Principal Financial Officer and Principal Accounting Officer
DATE:	November 4, 2016

EX-32.A

Exhibit 32-a

TRUSTMARK CORPORATION

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Trustmark Corporation (Trustmark) on Form 10-Q for the quarter ended September 30, 2016, as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Gerard R. Host, President and Chief Executive Officer of Trustmark, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Trustmark.

BY:	/s/ Gerard R. Host
	Gerard R. Host
	President and Chief Executive Officer
DATE:	November 4, 2016

EX-32.B

Exhibit 32-b

TRUSTMARK CORPORATION

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Trustmark Corporation (Trustmark) on Form 10-Q for the quarter ended September 30, 2016, as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Louis E. Greer, Treasurer, Principal Financial Officer and Principal Accounting Officer of Trustmark, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Trustmark.

BY:	/s/ Louis E. Greer
	Louis E. Greer
	Treasurer, Principal Financial Officer and Principal Accounting Officer
DATE:	November 4, 2016

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2016	Oct. 31, 2016
Document And Entity Information [Abstract]
Entity Registrant Name	TRUSTMARK CORP
Entity Central Index Key	0000036146
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		67,627,272
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Trading Symbol	TRMK

XML

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks (noninterest-bearing)	$ 383,945	$ 277,751
Federal funds sold and securities purchased under reverse repurchase agreements	500	250
Securities available for sale (at fair value)	2,410,947	2,345,422
Securities held to maturity (fair value: $1,173,101-2016; $1,195,367-2015)	1,143,234	1,187,818
Loans held for sale (LHFS)	242,097	160,189
Loans held for investment (LHFI)	7,499,204	7,091,385
Less allowance for loan losses, LHFI	70,871	67,619
Net LHFI	7,428,333	7,023,766
Acquired loans:
Noncovered loans	291,825	372,711
Covered loans	3,912	17,700
Less allowance for loan losses, acquired loans	11,380	11,992
Net acquired loans	284,357	378,419
Net LHFI and acquired loans	7,712,690	7,402,185
Premises and equipment, net	190,930	195,656
Mortgage servicing rights	65,514	74,007
Goodwill	366,156	366,156
Identifiable intangible assets	22,366	27,546
Other real estate, excluding covered other real estate	64,993	77,177
Covered other real estate	0	1,651
FDIC indemnification asset	0	738
Other assets	558,166	562,350
Total Assets	13,161,538	12,678,896
Deposits:
Noninterest-bearing	3,111,603	2,998,694
Interest-bearing	6,574,098	6,589,536
Total deposits	9,685,701	9,588,230
Federal funds purchased and securities sold under repurchase agreements	514,918	441,042
Short-term borrowings	412,792	412,617
Long-term FHLB advances	751,075	501,155
Subordinated notes	49,993	49,969
Junior subordinated debt securities	61,856	61,856
Other liabilities	150,442	150,970
Total Liabilities	11,626,777	11,205,839
Shareholders' Equity
Common stock, no par value: Authorized: 250,000,000 shares Issued and outstanding: 67,626,939 shares - 2016; 67,559,128 shares - 2015	14,090	14,076
Capital surplus	365,553	361,467
Retained earnings	1,172,193	1,142,908
Accumulated other comprehensive loss, net of tax	(17,075)	(45,394)
Total Shareholders' Equity	1,534,761	1,473,057
Total Liabilities and Shareholders' Equity	$ 13,161,538	$ 12,678,896

XML

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Assets
Securities held to maturity, fair value	$ 1,173,101	$ 1,195,367
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)	67,626,939	67,559,128
Common stock, outstanding (in shares)	67,626,939	67,559,128

XML

Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest Income
Interest and fees on LHFS & LHFI	$ 76,524	$ 69,458	$ 222,555	$ 203,836
Interest and fees on acquired loans	6,781	11,607	21,854	39,242
Interest on securities:
Taxable	19,351	20,264	58,839	59,581
Tax exempt	902	1,046	2,804	3,306
Interest on federal funds sold and securities purchased under reverse repurchase agreements	5	2	10	4
Other interest income	223	392	653	1,177
Total Interest Income	103,786	102,769	306,715	307,146
Interest Expense
Interest on deposits	3,208	3,147	9,368	9,598
Interest on federal funds purchased and securities sold under repurchase agreements	411	205	1,246	527
Other interest expense	2,603	1,811	7,420	5,074
Total Interest Expense	6,222	5,163	18,034	15,199
Net Interest Income	97,564	97,606	288,681	291,947
Provision for loan losses, LHFI	4,284	2,514	9,123	5,332
Provision for loan losses, acquired loans	691	1,256	2,607	2,428
Net Interest Income After Provision for Loan Losses	92,589	93,836	276,951	284,187
Noninterest Income
Service charges on deposit accounts	11,677	12,400	33,809	35,405
Bank card and other fees	6,756	6,964	21,110	21,142
Mortgage banking, net	7,364	7,443	22,784	25,889
Insurance commissions	10,074	9,906	28,305	27,923
Wealth management	7,571	7,790	22,987	23,538
Other, net	1,274	1,470	3,534	(18)
Security losses, net			(310)	0
Total Noninterest Income	44,716	45,973	132,219	133,879
Noninterest Expense
Salaries and employee benefits	57,250	58,270	181,469	172,832
Services and fees	14,947	14,691	43,944	43,817
Net occupancy - premises	6,440	6,580	18,556	19,014
Equipment expense	6,063	5,877	18,053	17,754
Other real estate expense	(1,313)	3,385	61	5,421
FDIC assessment expense	2,911	2,559	8,681	8,114
Other expense	11,610	12,198	36,267	36,090
Total Noninterest Expense	97,908	103,560	307,031	303,042
Income Before Income Taxes	39,397	36,249	102,139	115,024
Income taxes	8,415	7,819	22,651	26,844
Net Income	$ 30,982	$ 28,430	$ 79,488	$ 88,180
Earnings Per Share
Basic	$ 0.46	$ 0.42	$ 1.18	$ 1.31
Diluted	0.46	0.42	1.17	1.30
Dividends Per Share	$ 0.23	$ 0.23	$ 0.69	$ 0.69

XML

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net income per consolidated statements of income	$ 30,982	$ 28,430	$ 79,488	$ 88,180
Unrealized (losses) gains on available for sale securities and transferred securities:
Unrealized holding (losses) gains arising during the period	(7,816)	11,035	19,796	8,470
Less: adjustment for net losses realized in net income	0	0	191	0
Change in net unrealized holding loss on securities transferred to held to maturity	1,653	1,036	5,171	2,931
Pension and other postretirement benefit plans:
Net change in prior service costs	39	39	116	116
Recognized net loss due to lump sum settlement	286	373	1,935	926
Change in net actuarial loss	573	751	1,658	2,256
Derivatives:
Change in the accumulated loss on effective cash flow hedge derivatives	257	(751)	(840)	(1,185)
Less: adjustment for loss realized in net income	97	130	292	390
Other comprehensive (loss) income, net of tax	(4,911)	12,613	28,319	13,904
Comprehensive income	$ 26,071	$ 41,043	$ 107,807	$ 102,084

XML

Consolidated Condensed Statements of Changes in Shareholders' Equity (Unaudited) $ in Thousands	USD ($)
Balance at Dec. 31, 2014	$ 1,419,940
Statement Of Stockholders Equity [Abstract]
Net income per consolidated statements of income	88,180
Other comprehensive income, net of tax	13,904
Common stock dividends paid	(46,952)
Common stock issued-net, long-term incentive plan	(842)
Excess tax expense from stock-based compensation arrangements	(212)
Compensation expense, long-term incentive plan	2,738
Balance at Sep. 30, 2015	1,476,756
Balance at Dec. 31, 2015	1,473,057
Statement Of Stockholders Equity [Abstract]
Net income per consolidated statements of income	79,488
Other comprehensive income, net of tax	28,319
Common stock dividends paid	(46,983)
Common stock issued-net, long-term incentive plan	(992)
Repurchase and retirement of common stock	(750)
Excess tax expense from stock-based compensation arrangements	(119)
Compensation expense, long-term incentive plan	2,741
Balance at Sep. 30, 2016	$ 1,534,761

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Operating Activities
Net income per consolidated statements of income	$ 79,488	$ 88,180
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses, net	11,730	7,760
Depreciation and amortization	27,183	27,995
Net amortization of securities	6,833	6,411
Securities losses, net	310	0
Gains on sales of loans, net	(14,477)	(13,301)
Deferred income tax provision	12,900	11,600
Proceeds from sales of loans held for sale	1,030,784	943,804
Purchases and originations of loans held for sale	(1,096,979)	(985,935)
Originations of mortgage servicing rights	(12,392)	(13,321)
Increase in bank-owned life insurance	(3,653)	(3,598)
Net (increase) decrease in other assets	(20,833)	18,480
Net increase (decrease) in other liabilities	5,405	(1,151)
Other operating activities, net	14,617	6,325
Net cash provided by operating activities	40,916	93,249
Investing Activities
Proceeds from calls and maturities of securities held to maturity	221,002	95,467
Proceeds from calls and maturities of securities available for sale	344,160	345,156
Proceeds from sales of securities available for sale	24,693	0
Purchases of securities held to maturity	(168,665)	(68,715)
Purchases of securities available for sale	(408,532)	(375,866)
Net proceeds from bank-owned life insurance	604	655
Net (increase) decrease in federal funds sold and securities purchased under reverse repurchase agreements	(250)	1,885
Net increase in member bank stock	(2,153)	(12,585)
Net increase in loans	(343,707)	(247,772)
Purchases of premises and equipment	(6,929)	(9,934)
Proceeds from sales of premises and equipment	435	2,896
Proceeds from sales of other real estate	37,378	33,809
Purchases of software	(5,072)	(6,576)
Investments in tax credit and other partnerships	(46)	(315)
Purchase of insurance book of business	0	(2,787)
Net cash used in investing activities	(307,082)	(244,682)
Financing Activities
Net increase (decrease) in deposits	97,471	(285,954)
Net increase in federal funds purchased and securities sold under repurchase agreements	73,876	90,661
Net (decrease) increase in short-term borrowings	(1,057)	298,888
Payments on long-term FHLB advances	(78)	(77)
Proceeds from long-term FHLB advances	250,000	0
Common stock dividends	(46,983)	(46,952)
Common stock issued-net, long-term incentive plan	0	(842)
Repurchase and retirement of common stock	(750)	0
Excess tax expense from stock-based compensation arrangements	(119)	(212)
Net cash provided by financing activities	372,360	55,512
Increase (Decrease) in cash and cash equivalents	106,194	(95,921)
Cash and cash equivalents at beginning of period	277,751	315,973
Cash and cash equivalents at end of period	$ 383,945	$ 220,052

XML

Business, Basis of Financial Statement Presentation and Principles of Consolidation

9 Months Ended

Sep. 30, 2016

Organization Consolidation And Presentation Of Financial Statements [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 194 offices in Alabama, Florida, Mississippi, Tennessee and Texas.

The consolidated financial statements 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 2015 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.  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 periods 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 2016 actual conditions could vary from those anticipated, which could affect Trustmark’s financial condition and results of operations.  Actual results could differ from those estimates.

XML

Securities Available for Sale and Held to Maturity

9 Months Ended

Sep. 30, 2016

Investments Debt And Equity Securities [Abstract]

Securities Available for Sale and Held to Maturity

Note 2 – Securities Available for Sale and Held to Maturity

The following tables are a summary of the amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2016 and December 31, 2015 ($ in thousands):

	Securities Available for Sale									Securities Held to Maturity
September 30, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
U.S. Government agency obligations
Issued by U.S. Government agencies	$	58,259	$	482	$	(507	)	$	58,234	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		257		26		—			283		3,636		337		—			3,973
Obligations of states and political    subdivisions		121,485		3,167		(11	)		124,641		52,937		2,615		(4	)		55,548
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		36,130		712		(54	)		36,788		16,183		666		—			16,849
Issued by FNMA and FHLMC		554,916		7,239		(166	)		561,989		39,989		810		—			40,799
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,353,984		21,507		(1,092	)		1,374,399		831,662		18,690		(60	)		850,292
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		247,689		6,945		(21	)		254,613		198,827		6,921		(108	)		205,640
Total	$	2,372,720	$	40,078	$	(1,851	)	$	2,410,947	$	1,143,234	$	30,039	$	(172	)	$	1,173,101
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	68,314	$	555	$	(734	)	$	68,135	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		258		23		—			281		101,782		3,282		—			105,064
Obligations of states and political    subdivisions		134,719		3,922		(32	)		138,609		55,892		2,918		—			58,810
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		25,602		399		(189	)		25,812		17,363		342		(49	)		17,656
Issued by FNMA and FHLMC		222,899		2,956		(313	)		225,542		10,368		311		—			10,679
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,584,338		9,541		(11,019	)		1,582,860		820,012		4,951		(4,742	)		820,221
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		278,429		2,689		(1,892	)		279,226		182,401		1,700		(1,164	)		182,937
Asset-backed securities and structured    financial products		25,003		79		(125	)		24,957		—		—		—			—
Total	$	2,339,562	$	20,164	$	(14,304	)	$	2,345,422	$	1,187,818	$	13,504	$	(5,955	)	$	1,195,367

During 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, 2016, the net unamortized, unrealized loss on the transferred securities included in accumulated other comprehensive loss in the accompanying balance sheet totaled approximately $25.7 million ($15.8 million, net of tax).

Temporarily Impaired Securities

The tables below include securities with gross unrealized losses segregated by length of impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	Less than 12 Months					12 Months or More					Total
September 30, 2016	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Government agency obligations
Issued by U.S. Government agencies	$	10,548	$	(86	)	$	30,728	$	(421	)	$	41,276	$	(507	)
Obligations of states and political subdivisions		7,495		(13	)		969		(2	)		8,464		(15	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		9,072		(50	)		249		(4	)		9,321		(54	)
Issued by FNMA and FHLMC		100,191		(166	)		—		—			100,191		(166	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		72,256		(154	)		98,118		(998	)		170,374		(1,152	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		10,512		(21	)		5,815		(108	)		16,327		(129	)
Total	$	210,074	$	(490	)	$	135,879	$	(1,533	)	$	345,953	$	(2,023	)
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	18,924	$	(81	)	$	30,591	$	(653	)	$	49,515	$	(734	)
Obligations of states and political subdivisions		4,289		(12	)		2,842		(20	)		7,131		(32	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		20,300		(222	)		1,863		(16	)		22,163		(238	)
Issued by FNMA and FHLMC		82,177		(313	)		—		—			82,177		(313	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		1,135,533		(8,832	)		238,152		(6,929	)		1,373,685		(15,761	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		238,668		(2,902	)		11,090		(154	)		249,758		(3,056	)
Asset-backed securities and structured financial    products		6,778		(125	)		—		—			6,778		(125	)
Total	$	1,506,669	$	(12,487	)	$	284,538	$	(7,772	)	$	1,791,207	$	(20,259	)

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, 2016.  There were no other-than-temporary impairments for the three and nine months ended September 30, 2016 and 2015.

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 for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Available for Sale	2016		2015		2016			2015
Proceeds from calls and sales of securities	$	—	$	—	$	24,693		$	—
Gross realized gains		—		—		32			—
Gross realized (losses)		—		—		(342	)		—

Realized gains and losses are determined using the specific identification method and are included in noninterest income as security losses, net.

Securities Pledged

Securities with a carrying value of $1.826 billion and $2.157 billion at September 30, 2016 and December 31, 2015, respectively, were pledged to collateralize public deposits and securities sold under repurchase agreements and for other purposes as permitted by law.  At both September 30, 2016 and December 31, 2015, none of these securities were pledged under the Federal Reserve Discount Window program to provide additional contingency funding capacity.  

Contractual Maturities

The amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2016, 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 Available for Sale				Securities Held to Maturity
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	32,173	$	32,377	$	5,845	$	5,845
Due after one year through five years		99,840		103,180		27,025		28,099
Due after five years through ten years		8,263		8,332		23,703		25,577
Due after ten years		39,725		39,269		—		—
		180,001		183,158		56,573		59,521
Mortgage-backed securities		2,192,719		2,227,789		1,086,661		1,113,580
Total	$	2,372,720	$	2,410,947	$	1,143,234	$	1,173,101

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI

9 Months Ended

Sep. 30, 2016

Accounts Notes Loans And Financing Receivable Gross Allowance And Net [Abstract]

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI

Note 3 – Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI

At September 30, 2016 and December 31, 2015, LHFI consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Loans secured by real estate:
Construction, land development and other land	$	766,685	$	824,723
Secured by 1-4 family residential properties		1,592,453		1,649,501
Secured by nonfarm, nonresidential properties		1,916,153		1,736,476
Other real estate secured		317,680		211,228
Commercial and industrial loans		1,421,382		1,343,211
Consumer loans		170,073		169,135
State and other political subdivision loans		875,973		734,615
Other loans		438,805		422,496
LHFI		7,499,204		7,091,385
Less allowance for loan losses, LHFI		70,871		67,619
Net LHFI	$	7,428,333	$	7,023,766

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, 2016, 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 is susceptible to changes in market conditions in these areas.

Nonaccrual/Impaired LHFI

At September 30, 2016 and December 31, 2015, the carrying amounts of nonaccrual LHFI were $54.4 million and $55.3 million, respectively.  Included in these amounts were $3.7 million and $7.4 million, respectively, of nonaccrual LHFI classified as troubled debt restructurings (TDRs).  No material interest income was recognized in the income statement on nonaccrual LHFI for each of the periods ended September 30, 2016 and 2015.

Trustmark considers all nonaccrual LHFI to be impaired loans.  All commercial nonaccrual LHFI (including those classified as TDRs) over $500 thousand are specifically evaluated for impairment (specifically evaluated impaired LHFI) using a fair value approach.  The remaining nonaccrual LHFI, which primarily consist of consumer loans secured by 1-4 family residential property, are not specifically reviewed.  Consumer loans secured by 1-4 family residential property are generally charged off or written down when the credit becomes severely delinquent and the balance exceeds the fair value of the property less costs to sell.

At September 30, 2016 and December 31, 2015, specifically evaluated impaired LHFI totaled $28.6 million and $26.5 million, respectively.  Trustmark’s specifically evaluated impaired LHFI are primarily collateral dependent loans.  Fair value estimates for collateral dependent loans are derived from appraised values based on the current market value or as is value of the collateral, 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 collateral’s net realizable value is charged off.  Charge-offs related to specifically evaluated impaired LHFI totaled $5.0 million and $9.7 million for the first nine months of 2016 and 2015, respectively.  As subsequent events dictate and estimated net realizable values decline, required reserves may be established or further adjustments recorded.  At September 30, 2016 and December 31, 2015, reserves related to specifically evaluated impaired LHFI totaled $4.5 million and $7.0 million, respectively.  Provision recapture on specifically evaluated impaired LHFI totaled $2.0 million for the first nine months of 2016 compared to provision expense of $4.5 million for the first nine months of 2015.

At September 30, 2016 and December 31, 2015, impaired LHFI, excluding the specifically evaluated impaired LHFI, totaled $25.8 million and $28.8 million, respectively.  In addition, these impaired LHFI had allocated allowance for loan losses of $2.3 million and $2.0 million at the end of the respective periods.  No material interest income was recognized in the income statement on impaired LHFI for each of the periods ended September 30, 2016 and 2015.

The following tables detail LHFI individually and collectively evaluated for impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	4,724	$	761,961	$	766,685
Secured by 1-4 family residential properties		20,107		1,572,346		1,592,453
Secured by nonfarm, nonresidential properties		10,313		1,905,840		1,916,153
Other real estate secured		1,731		315,949		317,680
Commercial and industrial loans		16,525		1,404,857		1,421,382
Consumer loans		189		169,884		170,073
State and other political subdivision loans		—		875,973		875,973
Other loans		821		437,984		438,805
Total	$	54,410	$	7,444,794	$	7,499,204

	December 31, 2015
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	6,123	$	818,600	$	824,723
Secured by 1-4 family residential properties		23,079		1,626,422		1,649,501
Secured by nonfarm, nonresidential properties		17,800		1,718,676		1,736,476
Other real estate secured		145		211,083		211,228
Commercial and industrial loans		7,622		1,335,589		1,343,211
Consumer loans		31		169,104		169,135
State and other political subdivision loans		—		734,615		734,615
Other loans		512		421,984		422,496
Total	$	55,312	$	7,036,073	$	7,091,385

At September 30, 2016 and December 31, 2015, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):

	September 30, 2016
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	8,186	$	3,113	$	1,611	$	4,724	$	453	$	5,424
Secured by 1-4 family residential properties		25,160		495		19,612		20,107		1,514		21,593
Secured by nonfarm, nonresidential properties		11,633		1,312		9,001		10,313		2,316		14,058
Other real estate secured		1,782		1,000		731		1,731		90		938
Commercial and industrial loans		18,203		12,055		4,470		16,525		2,305		12,073
Consumer loans		193		—		189		189		2		111
State and other political subdivision loans		—		—		—		—		—		—
Other loans		966		—		821		821		154		667
Total	$	66,123	$	17,975	$	36,435	$	54,410	$	6,834	$	54,864

	December 31, 2015
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	11,113	$	3,395	$	2,728	$	6,123	$	909	$	9,995
Secured by 1-4 family residential properties		27,678		283		22,796		23,079		1,230		24,350
Secured by nonfarm, nonresidential properties		20,387		8,037		9,763		17,800		3,402		21,758
Other real estate secured		160		—		145		145		15		732
Commercial and industrial loans		9,880		1,137		6,485		7,622		3,304		9,863
Consumer loans		34		—		31		31		—		59
State and other political subdivision loans		—		—		—		—		—		—
Other loans		642		—		512		512		128		570
Total	$	69,894	$	12,852	$	42,460	$	55,312	$	8,988	$	67,327

A 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 collectability 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.  At September 30, 2016 and December 31, 2015, Trustmark held $880 thousand and $1.0 million, respectively, of foreclosed residential real estate as a result of foreclosure or in substance repossession of consumer mortgage LHFI classified as TDRs.  There were no consumer mortgage LHFI classified as TDRs in the process of formal foreclosure proceedings at September 30, 2016 compared to $83 thousand at December 31, 2015.

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, 2016 and 2015, LHFI classified as TDRs totaled $3.7 million and $11.2 million, respectively, and were comprised of credits with interest-only payments for an extended period of time which totaled $1.6 million and $7.5 million, respectively.  The remaining TDRs at September 30, 2016 and 2015 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 $31 thousand and $1.2 million at September 30, 2016 and 2015, respectively.  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 for the nine months ended September 30, 2016 were $ 1.0 million compared to $806 thousand for the nine months ended September 30, 2015. 

The following tables illustrate the impact of modifications classified as TDRs as well as those TDRs modified within the last 12 months for which there was a payment default during the period for the periods presented ($ in thousands):

	Three Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Loans secured by 1-4 family residential properties		—	$	—	$	—		2	$	35	$	35

	Nine Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Construction, land development and other land loans		1	$	14	$	14		—	$	—	$	—
Loans secured by 1-4 family residential properties		8		740		740		10		495		495
Loans secured by nonfarm, nonresidential properties		—		—		—		4		3,512		3,512
Consumer loans		1		2		2		—		—		—
Total		10	$	756	$	756		14	$	4,007	$	4,007

	Nine Months Ended September 30,
	2016				2015
TDRs that Subsequently Defaulted	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Loans secured by 1-4 family residential properties		1	$	101		4	$	243

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 at September 30, 2016 and 2015 ($ in thousands):

	September 30, 2016
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	556	$	556
Secured by 1-4 family residential properties		—		2,545		2,545
Secured by nonfarm, nonresidential properties		—		179		179
Commercial and industrial loans		—		387		387
Consumer loans		—		2		2
Total TDRs	$	—	$	3,669	$	3,669

	September 30, 2015
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	1,006	$	1,006
Secured by 1-4 family residential properties		1,385		2,921		4,306
Secured by nonfarm, nonresidential properties		819		4,503		5,322
Other real estate secured		—		62		62
Commercial and industrial loans		—		477		477
Total TDRs	$	2,204	$	8,969	$	11,173

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 primarily composed of 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, underwriting, collateral documentation and compliance with 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.

• Underwriting – evaluates whether credits are adequately analyzed, appropriately structured and properly approved within loan policy requirements.  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 perfect Trustmark’s collateral position and substantiate collateral value.  Collateral exceptions measure the level of documentation exceptions within a loan portfolio.  Collateral exceptions occur when certain collateral documentation is either not present, is not considered current or has expired.

• 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 (Special Mention) - (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 special mention (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.

Each commercial loan is assigned a credit risk grade that is an indication for the likelihood of default and is not a direct indication of loss at default.  The loss at default 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 loss at default aspects of the risk rating system, the loss expectations for each risk rating are integrated into the allowance for loan loss methodology where the calculated loss at default is allotted for each individual risk rating with respect to the individual loan group and unique geographic area.  The loss at default 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 charged off within the period that the loss is determined and are not carried on Trustmark’s books over quarter-end.

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 review 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 TDRs.  Quarterly, the Credit Quality Review Committee reviews and modifies continuous action plans for all credits risk rated seven or worse for relationships of $100 thousand or more.  In addition, the following reviews are performed on an annual basis:

• Residential real estate developments - a development project analysis is performed on all projects regardless of size.  Performance of the development is assessed through an evaluation of the number of lots remaining, payout ratios, and loan-to-value ratios.  This analysis is reviewed by each senior credit officer for the respective market to determine the need for any risk rate or accrual status changes.

• Non-owner occupied commercial real estate - a cash flow analysis is performed on all projects with an outstanding balance of $1.0 million or more.  Confirmation is obtained that guarantor financial statements are current, taxes have been paid and there are no other issues that need to be addressed.  This analysis is reviewed by each senior credit officer in the respective market to determine the need for any risk rate or accrual status changes.

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 ensure that Trustmark continues to originate quality loans. 

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 tables below illustrate the carrying amount of LHFI by credit quality indicator at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	687,123	$	8,494	$	9,410	$	469	$	705,496
Secured by 1-4 family residential    properties			124,472		467		6,262		361		131,562
Secured by nonfarm, nonresidential    properties			1,870,036		3,196		41,668		494		1,915,394
Other real estate secured			314,858		—		1,957		—		316,815
Commercial and industrial loans			1,304,137		9,094		107,405		746		1,421,382
Consumer loans			—		—		—		—		—
State and other political subdivision loans			858,168		6,450		11,355		—		875,973
Other loans			429,403		340		2,232		642		432,617
Total		$	5,588,197	$	28,041	$	180,289	$	2,712	$	5,799,239

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	60,546	$	176	$	—	$	467	$	61,189	$	766,685
Secured by 1-4 family residential    properties		1,435,347		8,173		717		16,654		1,460,891		1,592,453
Secured by nonfarm, nonresidential    properties		759		—		—		—		759		1,916,153
Other real estate secured		865		—		—		—		865		317,680
Commercial and industrial loans		—		—		—		—		—		1,421,382
Consumer loans		167,817		1,845		218		193		170,073		170,073
State and other political subdivision loans		—		—		—		—		—		875,973
Other loans		6,188		—		—		—		6,188		438,805
Total	$	1,671,522	$	10,194	$	935	$	17,314	$	1,699,965	$	7,499,204

	December 31, 2015
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard- Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	746,227	$	—	$	15,637	$	529	$	762,393
Secured by 1-4 family residential    properties			125,268		345		7,525		190		133,328
Secured by nonfarm, nonresidential    properties			1,680,846		2,031		52,485		361		1,735,723
Other real estate secured			205,097		—		4,768		—		209,865
Commercial and industrial loans			1,295,760		9,473		37,284		694		1,343,211
Consumer loans			—		—		—		—		—
State and other political subdivision loans			713,616		12,478		8,521		—		734,615
Other loans			414,089		183		2,663		375		417,310
Total		$	5,180,903	$	24,510	$	128,883	$	2,149	$	5,336,445

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	62,158	$	146	$	—	$	26	$	62,330	$	824,723
Secured by 1-4 family residential    properties		1,485,914		7,565		2,058		20,636		1,516,173		1,649,501
Secured by nonfarm, nonresidential    properties		753		—		—		—		753		1,736,476
Other real estate secured		1,363		—		—		—		1,363		211,228
Commercial and industrial loans		—		—		—		—		—		1,343,211
Consumer loans		166,681		2,182		242		30		169,135		169,135
State and other political subdivision loans		—		—		—		—		—		734,615
Other loans		5,186		—		—		—		5,186		422,496
Total	$	1,722,055	$	9,893	$	2,300	$	20,692	$	1,754,940	$	7,091,385

Past Due LHFI

The following tables provide an aging analysis of past due and nonaccrual LHFI by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	1,136	$	78	$	—	$	1,214	$	4,724	$	760,747	$	766,685
Secured by 1-4 family residential properties		6,801		1,803		717		9,321		20,107		1,563,025		1,592,453
Secured by nonfarm, nonresidential    properties		576		—		18		594		10,313		1,905,246		1,916,153
Other real estate secured		144		—		—		144		1,731		315,805		317,680
Commercial and industrial loans		868		180		—		1,048		16,525		1,403,809		1,421,382
Consumer loans		1,465		380		218		2,063		189		167,821		170,073
State and other political subdivision loans		—		—		—		—		—		875,973		875,973
Other loans		147		2		—		149		821		437,835		438,805
Total	$	11,137	$	2,443	$	953	$	14,533	$	54,410	$	7,430,261	$	7,499,204

(1) Past due 90 days or more but still accruing interest.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	214	$	—	$	—	$	214	$	6,123	$	818,386	$	824,723
Secured by 1-4 family residential properties		6,203		1,800		2,058		10,061		23,079		1,616,361		1,649,501
Secured by nonfarm, nonresidential    properties		437		88		—		525		17,800		1,718,151		1,736,476
Other real estate secured		—		—		—		—		145		211,083		211,228
Commercial and industrial loans		921		45		—		966		7,622		1,334,623		1,343,211
Consumer loans		1,835		347		242		2,424		31		166,680		169,135
State and other political subdivision loans		65		—		—		65		—		734,550		734,615
Other loans		68		—		—		68		512		421,916		422,496
Total	$	9,743	$	2,280	$	2,300	$	14,323	$	55,312	$	7,021,750	$	7,091,385

(1) Past due 90 days or more but still accruing interest.

Past Due Loans Held for Sale (LHFS)

LHFS past due 90 days or more totaled $25.6 million and $21.8 million at September 30, 2016 and December 31, 2015, 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.

During the first quarter of 2015, Trustmark exercised its option to repurchase approximately $28.5 million of 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 subject to guarantees 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 $304 thousand, which is included in mortgage banking, net for 2015.  Trustmark did not exercise its buy-back option on any delinquent loans serviced for GNMA during the first nine months of 2016.

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

• Loan facility risk

• 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 within each key market region.

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

• 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 four 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 four qualitative factors include the following:

• Economic indicators

• Performance trends

• Management experience

• 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.

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 five loan pools.

Trustmark’s loan policy dictates the guidelines to be followed in determining when a loan is charged off.  Commercial purpose loans are charged off when a determination is made that the loan is uncollectible and continuance as a bankable asset is not warranted or an impairment evaluation indicates that a value adjustment is necessary.  Consumer loans secured by 1-4 family residential real estate are generally charged off or written down when the credit becomes severely delinquent and the balance exceeds the fair value of the property less costs to sell.  Non-real estate consumer purpose loans, both secured and unsecured, are generally charged off in full during the month in which the loan becomes 120 days past due.  Credit card loans are generally charged off in full when the loan becomes 180 days past due.

Changes in the allowance for loan losses, LHFI were as follows for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Balance at beginning of period	$	71,796		$	71,166		$	67,619		$	69,616
Loans charged-off		(8,279	)		(11,406	)		(14,893	)		(18,688	)
Recoveries		3,070			3,333			9,022			9,347
Net charge-offs		(5,209	)		(8,073	)		(5,871	)		(9,341	)
Provision for loan losses, LHFI		4,284			2,514			9,123			5,332
Balance at end of period	$	70,871		$	65,607		$	70,871		$	65,607

The following tables detail the balance in the allowance for loan losses, LHFI by loan type at September 30, 2016 and 2015 ($ in thousands):

	2016
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land	$	11,587	$	(212	)	$	1,006	$	(3,183	)	$	9,198
Secured by 1-4 family residential properties		10,678		(1,129	)		680		172			10,401
Secured by nonfarm, nonresidential properties		21,563		(1,662	)		823		1,479			22,203
Other real estate secured		2,467		—			5		(213	)		2,259
Commercial and industrial loans		15,815		(6,408	)		519		10,982			20,908
Consumer loans		2,879		(1,398	)		3,397		(1,851	)		3,027
State and other political subdivision loans		809		—			—		68			877
Other loans		1,821		(4,084	)		2,592		1,669			1,998
Total allowance for loan losses, LHFI	$	67,619	$	(14,893	)	$	9,022	$	9,123		$	70,871

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	453	$	8,745	$	9,198
Secured by 1-4 family residential properties		1,514		8,887		10,401
Secured by nonfarm, nonresidential properties		2,316		19,887		22,203
Other real estate secured		90		2,169		2,259
Commercial and industrial loans		2,305		18,603		20,908
Consumer loans		2		3,025		3,027
State and other political subdivision loans		—		877		877
Other loans		154		1,844		1,998
Total allowance for loan losses, LHFI	$	6,834	$	64,037	$	70,871

	2015
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land loans	$	13,073	$	(2,236	)	$	1,274	$	395		$	12,506
Secured by 1-4 family residential properties		9,677		(2,013	)		781		1,529			9,974
Secured by nonfarm, nonresidential properties		18,523		(1,282	)		397		(1,517	)		16,121
Other real estate secured		2,141		(24	)		6		(382	)		1,741
Commercial and industrial loans		19,917		(7,243	)		1,553		5,109			19,336
Consumer loans		2,149		(1,543	)		2,639		(1,166	)		2,079
State and other political subdivision loans		1,314		—			—		(624	)		690
Other loans		2,822		(4,347	)		2,697		1,988			3,160
Total allowance for loan losses, LHFI	$	69,616	$	(18,688	)	$	9,347	$	5,332		$	65,607

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land loans	$	2,054	$	10,452	$	12,506
Secured by 1-4 family residential properties		267		9,707		9,974
Secured by nonfarm, nonresidential properties		2,602		13,519		16,121
Other real estate secured		28		1,713		1,741
Commercial and industrial loans		2,956		16,380		19,336
Consumer loans		—		2,079		2,079
State and other political subdivision loans		—		690		690
Other loans		200		2,960		3,160
Total allowance for loan losses, LHFI	$	8,107	$	57,500	$	65,607

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Acquired Loans

9 Months Ended

Sep. 30, 2016

Certain Loans Acquired In Transfer Not Accounted For As Debt Securities [Abstract]

Acquired Loans

Note 4 – Acquired Loans

At September 30, 2016 and December 31, 2015, acquired loans consisted of the following ($ in thousands):

	September 30, 2016				December 31, 2015
	Noncovered		Covered (1)		Noncovered		Covered
Loans secured by real estate:
Construction, land development and other land	$	25,040	$	—	$	41,623	$	1,021
Secured by 1-4 family residential properties		72,689		3,912		86,950		10,058
Secured by nonfarm, nonresidential properties		110,606		—		135,626		4,638
Other real estate secured		20,903		—		23,860		1,286
Commercial and industrial loans		39,519		—		55,075		624
Consumer loans		3,878		—		5,641		—
Other loans		19,190		—		23,936		73
Acquired loans		291,825		3,912		372,711		17,700
Less allowance for loan losses, acquired loans		11,330		50		11,259		733
Net acquired loans	$	280,495	$	3,862	$	361,452	$	16,967

(1) Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

The following table presents changes in the net carrying value of the acquired loans for the periods presented ($ in thousands):

	Noncovered						Covered
	Acquired Impaired			Acquired Not ASC 310-30 (1)			Acquired Impaired			Acquired Not ASC 310-30 (1)
Carrying value, net at January 1, 2015	$	434,151		$	81,091		$	20,504		$	1,604
Accretion to interest income		28,193			479			2,308			—
Payments received, net		(164,671	)		(15,484	)		(8,592	)		(33	)
Other (2)		(1,589	)		—			391			—
Less change in allowance for loan losses, acquired loans		(718	)		—			785			—
Carrying value, net at December 31, 2015		295,366			66,086			15,396			1,571
Transfers (3)		9,157			446			(9,157	)		(446	)
Accretion to interest income		13,498			40			853			—
Payments received, net		(75,875	)		(28,861	)		(4,203	)		(421	)
Other (2)		709			—			(414	)		—
Less change in allowance for loan losses, acquired loans		(523	)		452			1,137			(454	)
Carrying value, net at September 30, 2016	$	242,332		$	38,163		$	3,612		$	250

(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, "Loans and Debt Securities Acquired with Deteriorated Credit Quality."

(2) Includes miscellaneous timing adjustments as well as acquired loan terminations through foreclosure, charge-off and other terminations.

(3) Covered acquired loans transferred to noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

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 periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Accretable yield at beginning of period	$	(52,672	)	$	(77,149	)
Accretion to interest income		14,351			24,907
Disposals		4,306			8,194
Reclassification from nonaccretable difference (1)		(7,046	)		(12,215	)
Accretable yield at end of period	$	(41,061	)	$	(56,263	)

(1) 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 periods presented ($ in thousands):

	Three Months Ended September 30, 2016									Nine Months Ended September 30, 2016
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	12,218		$	262		$	12,480		$	11,259		$	733		$	11,992
Transfers (1)		215			(215	)		—			215			(215	)		—
Provision for loan losses, acquired loans		686			5			691			2,969			(362	)		2,607
Loans charged-off		(2,590	)		—			(2,590	)		(4,959	)		(82	)		(5,041	)
Recoveries		801			(2	)		799			1,846			(24	)		1,822
Net charge-offs		(1,789	)		(2	)		(1,791	)		(3,113	)		(106	)		(3,219	)
Balance at end of period	$	11,330		$	50		$	11,380		$	11,330		$	50		$	11,380

	Three Months Ended September 30, 2015									Nine Months Ended September 30, 2015
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	11,927		$	702		$	12,629		$	10,541		$	1,518		$	12,059
Provision for loan losses, acquired loans		1,221			35			1,256			2,797			(369	)		2,428
Loans charged-off		(2,456	)		(110	)		(2,566	)		(5,024	)		(560	)		(5,584	)
Recoveries		725			141			866			3,103			179			3,282
Net (charge-offs) recoveries		(1,731	)		31			(1,700	)		(1,921	)		(381	)		(2,302	)
Balance at end of period	$	11,417		$	768		$	12,185		$	11,417		$	768		$	12,185

(1) The allowance for loan losses on covered acquired loans other than loans secured by 1-4 family residential properties transferred to the allowance for loan losses on noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

As discussed in Note 3 - 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, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	14,624	$	117	$	7,900	$	322	$	22,963
Secured by 1-4 family    residential properties			17,629		56		4,249		310		22,244
Secured by nonfarm,    nonresidential properties			88,799		1,071		20,167		516		110,553
Other real estate secured			16,313		—		3,482		673		20,468
Commercial and industrial loans			23,860		23		14,230		1,406		39,519
Consumer loans			—		—		—		—		—
Other loans			13,361		—		5,665		162		19,188
Total noncovered loans			174,586		1,267		55,693		3,389		234,935
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			—		—		—		—		—
Secured by 1-4 family    residential properties			185		12		60		—		257
Secured by nonfarm,    nonresidential properties			—		—		—		—		—
Other real estate secured			—		—		—		—		—
Commercial and industrial loans			—		—		—		—		—
Other loans			—		—		—		—		—
Total covered loans			185		12		60		—		257
Total acquired loans		$	174,771	$	1,279	$	55,753	$	3,389	$	235,192

	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,066	$	3	$	8	$	—	$	2,077	$	25,040
Secured by 1-4 family    residential properties		47,666		1,783		902		94		50,445		72,689
Secured by nonfarm,    nonresidential properties		53		—		—		—		53		110,606
Other real estate secured		435		—		—		—		435		20,903
Commercial and industrial loans		—		—		—		—		—		39,519
Consumer loans		3,825		48		5		—		3,878		3,878
Other loans		2		—		—		—		2		19,190
Total noncovered loans		54,047		1,834		915		94		56,890		291,825
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—
Secured by 1-4 family    residential properties		3,311		136		208		—		3,655		3,912
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—
Other loans		—		—		—		—		—		—
Total covered loans		3,311		136		208		—		3,655		3,912
Total acquired loans	$	57,358	$	1,970	$	1,123	$	94	$	60,545	$	295,737

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

	December 31, 2015
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	15,839	$	253	$	19,252	$	3,874	$	39,218
Secured by 1-4 family    residential properties			22,272		27		5,033		331		27,663
Secured by nonfarm,    nonresidential properties			106,924		2,301		25,690		711		135,626
Other real estate secured			19,346		—		3,777		731		23,854
Commercial and industrial loans			36,670		844		15,526		2,035		55,075
Consumer loans			—		—		—		—		—
Other loans			17,150		—		6,624		162		23,936
Total noncovered loans			218,201		3,425		75,902		7,844		305,372
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			235		—		588		119		942
Secured by 1-4 family    residential properties			869		107		534		—		1,510
Secured by nonfarm,    nonresidential properties			4,060		35		472		—		4,567
Other real estate secured			730		—		111		—		841
Commercial and industrial loans			560		22		42		—		624
Other loans			70		—		—		—		70
Total covered loans			6,524		164		1,747		119		8,554
Total acquired loans		$	224,725	$	3,589	$	77,649	$	7,963	$	313,926

	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,353	$	24	$	28	$	—	$	2,405	$	41,623
Secured by 1-4 family    residential properties		56,371		1,841		930		145		59,287		86,950
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		135,626
Other real estate secured		6		—		—		—		6		23,860
Commercial and industrial loans		—		—		—		—		—		55,075
Consumer loans		5,498		142		1		—		5,641		5,641
Other loans		—		—		—		—		—		23,936
Total noncovered loans		64,228		2,007		959		145		67,339		372,711
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		70		9		—		—		79		1,021
Secured by 1-4 family    residential properties		7,472		314		762		—		8,548		10,058
Secured by nonfarm,    nonresidential properties		71		—		—		—		71		4,638
Other real estate secured		445		—		—		—		445		1,286
Commercial and industrial loans		—		—		—		—		—		624
Other loans		3		—		—		—		3		73
Total covered loans		8,061		323		762		—		9,146		17,700
Total acquired loans	$	72,289	$	2,330	$	1,721	$	145	$	76,485	$	390,411

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

At September 30, 2016 and December 31, 2015, there were no acquired impaired loans accounted for under FASB ASC Topic 310-30 classified as nonaccrual loans.  At September 30, 2016, approximately $653 thousand of acquired loans not accounted for under FASB ASC Topic 310-30 were classified as nonaccrual loans, compared to approximately $1.0 million of acquired loans at December 31, 2015.

The following tables provide an aging analysis of contractually past due and nonaccrual acquired loans, by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development    and other land	$	203	$	12	$	889	$	1,104	$	—	$	23,936	$	25,040
Secured by 1-4 family residential    properties		1,679		333		934		2,946		112		69,631		72,689
Secured by nonfarm, nonresidential    properties		225		32		857		1,114		338		109,154		110,606
Other real estate secured		112		—		1,458		1,570		—		19,333		20,903
Commercial and industrial loans		832		33		1		866		203		38,450		39,519
Consumer loans		48		—		5		53		—		3,825		3,878
Other loans		—		—		—		—		—		19,190		19,190
Total noncovered loans		3,099		410		4,144		7,653		653		283,519		291,825
Covered loans:
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—		—
Secured by 1-4 family residential    properties		55		81		208		344		—		3,568		3,912
Secured by nonfarm, nonresidential    properties		—		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—		—
Other loans		—		—		—		—		—		—		—
Total covered loans		55		81		208		344		—		3,568		3,912
Total acquired loans	$	3,154	$	491	$	4,352	$	7,997	$	653	$	287,087	$	295,737

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development and    other land	$	24	$	114	$	13,021	$	13,159	$	—	$	28,464	$	41,623
Secured by 1-4 family residential    properties		1,544		636		1,220		3,400		387		83,163		86,950
Secured by nonfarm, nonresidential    properties		192		195		5,913		6,300		144		129,182		135,626
Other real estate secured		9		—		737		746		—		23,114		23,860
Commercial and industrial loans		82		4		184		270		429		54,376		55,075
Consumer loans		119		23		1		143		—		5,498		5,641
Other loans		85		16		—		101		—		23,835		23,936
Total noncovered loans		2,055		988		21,076		24,119		960		347,632		372,711
Covered loans:
Loans secured by real estate:
Construction, land development and    other land		9		—		119		128		—		893		1,021
Secured by 1-4 family residential    properties		428		132		978		1,538		—		8,520		10,058
Secured by nonfarm, nonresidential    properties		167		478		—		645		—		3,993		4,638
Other real estate secured		—		—		—		—		—		1,286		1,286
Commercial and industrial loans		—		—		—		—		51		573		624
Other loans		—		—		—		—		—		73		73
Total covered loans		604		610		1,097		2,311		51		15,338		17,700
Total acquired loans	$	2,659	$	1,598	$	22,173	$	26,430	$	1,011	$	362,970	$	390,411

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

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Mortgage Banking

9 Months Ended

Sep. 30, 2016

Mortgage Banking [Abstract]

Mortgage Banking

Note 5 – Mortgage Banking

The activity in the mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	74,007		$	64,358
Origination of servicing assets		12,392			13,320
Change in fair value:
Due to market changes		(13,518	)		(433	)
Due to run-off		(7,367	)		(7,436	)
Balance at end of period	$	65,514		$	69,809

During the first nine months of 2016 and 2015, Trustmark sold $1.016 billion and $930.5 million, respectively, of residential mortgage loans.  Pretax gains on these sales were recorded to noninterest income in mortgage banking, net and totaled $14.5 million for the first nine months of 2016 compared to $13.3 million for the first nine months of 2015.  The table below details the mortgage loans sold and serviced for others at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Federal National Mortgage Association	$	3,933,746	$	3,750,685
Government National Mortgage Association		2,238,400		2,111,797
Federal Home Loan Mortgage Corporation		58,236		67,817
Other		34,214		41,013
Total mortgage loans sold and serviced for others	$	6,264,596	$	5,971,312

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 FNMA and FHLMC will not exercise their remedies, including a putback request, for breaches of certain 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 incurred by Trustmark during the first nine months of 2016 were $315 thousand compared to $210 thousand during the same time period in 2015.

Changes in the reserve for mortgage loan servicing putback expense for mortgage loans delivered to FNMA in periods not covered by the November 2013 Resolution Agreement between Trustmark and FNMA and to other entities were as follows for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,685		$	1,170
Provision for putback expenses		315			210
(Losses) gains		(944	)		211
Balance at end of period	$	1,056		$	1,591

There is inherent uncertainty in reasonably estimating the requirement for reserves against potential 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.

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Other Real Estate and Covered Other Real Estate

9 Months Ended

Sep. 30, 2016

Other Real Estate And Foreclosed Assets [Abstract]

Other Real Estate and Covered Other Real Estate

Note 6 –Other Real Estate and Covered Other Real Estate

Other Real Estate, excluding Covered Other Real Estate

At September 30, 2016, 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, net on other real estate, excluding covered other real estate, were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	77,177		$	92,509
Additions		21,972			26,832
Disposals		(30,494	)		(33,015	)
Write-downs		(3,662	)		(2,371	)
Balance at end of period	$	64,993		$	83,955
Gain, net on the sale of other real estate included in    other real estate expense	$	5,350		$	2,116

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	38,345	$	47,550
1-4 family residential properties		8,037		10,732
Nonfarm, nonresidential properties		18,611		16,717
Other real estate properties		—		2,178
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by geographic location consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Alabama	$	15,574	$	21,578
Florida		25,147		29,579
Mississippi (1)		16,659		14,312
Tennessee (2)		6,061		9,974
Texas		1,552		1,734
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

(1) Mississippi includes Central and Southern Mississippi Regions

(2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions

Covered Other Real Estate

On July 1, 2016, $388 thousand of covered other real estate was transferred to other real estate, excluding covered other real estate, as a result of the expiration of a loss-share agreement with the FDIC on June 30, 2016.  As of September 30, 2016, Trustmark had no covered other real estate.  The remaining loss-share agreement with the FDIC, which covers loans secured by 1-4 family residential properties, will expire in 2021.  Should a loan covered by the remaining loss-share agreement be foreclosed, the related property will be classified as covered other real estate.

For the periods presented, changes and gains (losses), net on covered other real estate were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,651		$	6,060
Transfers from covered loans		456			266
FASB ASC 310-30 adjustment for the residual recorded    investment		(12	)		(902	)
Net transfers from covered loans		444			(636	)
Disposals		(1,679	)		(1,404	)
Transfers to noncovered other real estate		(388	)		—
Write-downs		(28	)		(1,155	)
Balance at end of period	$	—		$	2,865
Gain (loss), net on the sale of covered other real estate included in    other real estate expense	$	801		$	(54	)

At September 30, 2016 and December 31, 2015, covered other real estate by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	—	$	638
1-4 family residential properties		—		223
Nonfarm, nonresidential properties		—		399
Other real estate properties		—		391
Total covered other real estate	$	—	$	1,651

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Deposits

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Deposits

Note 7 – Deposits

At September 30, 2016 and December 31, 2015, deposits consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Noninterest-bearing demand	$	3,111,603	$	2,998,694
Interest-bearing demand		1,783,655		1,938,497
Savings		3,133,286		2,970,997
Time		1,657,157		1,680,042
Total	$	9,685,701	$	9,588,230

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Securities Sold Under Repurchase Agreements

9 Months Ended

Sep. 30, 2016

Securities Sold Under Agreements To Repurchase [Abstract]

Securities Sold Under Repurchase Agreements

Note 8 – Securities Sold Under Repurchase Agreements

Trustmark utilizes securities sold under repurchase agreements as a source of borrowing in connection with overnight repurchase agreements offered to commercial deposit customers by using its unencumbered investment securities as collateral.  Trustmark accounts for its securities sold under repurchase agreements as secured borrowings in accordance with FASB ASC Topic 860-30, “Transfers and Servicing – Secured Borrowing and Collateral.”  Securities sold under repurchase agreements are stated at the amount of cash received in connection with the transaction.  Trustmark monitors collateral levels on a continual basis and may be required to provide additional collateral based on the fair value of the underlying securities.  Trustmark’s repurchase agreements are transacted under master repurchase agreements that give Trustmark, in the event of default by the counterparty, the right of offset with the same counterparty.  As of September 30, 2016, all repurchase agreements were short-term and consisted primarily of sweep repurchase arrangements, under which excess deposits are “swept” into overnight repurchase agreements with Trustmark.  The following table presents the securities sold under repurchase agreements by collateral pledged at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government sponsored agencies	$	—	$	22,516
Mortgage-backed securities
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		122,865		102,604
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		41,067		—
Total securities sold under repurchase agreements	$	163,932	$	125,120

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Defined Benefit and Other Postretirement Benefits

9 Months Ended

Sep. 30, 2016

Compensation And Retirement Disclosure [Abstract]

Defined Benefit and Other Postretirement Benefits

Note 9 – Defined Benefit and Other Postretirement Benefits

Qualified Pension Plans

Trustmark maintains a noncontributory tax-qualified defined benefit pension plan (Trustmark Capital Accumulation Plan, the “Plan”), in which substantially all associates who began employment 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.  Benefit accruals under the plan have been frozen since 2009, with the exception of certain associates covered through plans obtained in acquisitions that were subsequently merged into the Plan.  Other than the associates covered through these acquired plans that were merged into the Plan, associates have not earned additional benefits, except for interest as required by law, since the Plan was frozen.  Current and former associates who participate in the Plan retain their right to receive benefits that accrued before the Plan was frozen.

On July 26, 2016, the Board of Directors of Trustmark authorized the termination of the Plan, effective as of December 31, 2016. To satisfy commitments made by Trustmark to associates (collectively, the “Continuing Associates”) covered through acquired plans that were merged into the Plan, the Board also approved the spin-off of the portion of the Plan associated with the accrued benefits of the Continuing Associates into a new plan titled the Trustmark Corporation Pension Plan for Certain Employees of Acquired Financial Institutions (the “Spin-Off Plan”), effective as of December 31, 2016, immediately prior to the termination of the Plan.    

In order to terminate the Plan, in accordance with Internal Revenue Service and Pension Benefit Guaranty Corporation requirements, Trustmark is required to fully fund the Plan on a termination basis and will contribute the additional assets necessary to do so. The final distributions will be made from current plan assets and a one-time pension settlement expense will be recognized when paid by Trustmark during the second quarter of 2017.  Further, as a result of Trustmark’s de-risking investment strategy for the Plan as of June 30, 2016, the expected rate of return on plan assets during the second half of 2016 will decrease from 6.0% to 2.5%.  Accordingly, Trustmark's increased periodic benefit costs for the Plan during the third quarter of 2016 was $664 thousand.  Participants in the Plan will have a choice of receiving a lump sum cash payment or annuity payments under a group annuity contract purchased from an insurance carrier, subject to certain exceptions. As a result of the termination of the Plan, each participant will become fully vested in his or her accrued benefits under the Plan.   

The Board reserved the right to defer or revoke the termination of the Plan if circumstances change such that deferral or revocation would be warranted, but has no intent to do so at this time.

The following table presents information regarding the net periodic benefit cost for the Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Service cost	$	106		$	127		$	322		$	387
Interest cost		847			867			2,507			2,593
Expected return on plan assets		(426	)		(1,297	)		(2,470	)		(3,890	)
Recognized net loss due to lump sum settlements		463			603			3,134			1,499
Recognized net actuarial loss		714			969			2,035			2,907
Net periodic benefit cost	$	1,704		$	1,269		$	5,528		$	3,496

The range of potential contributions to the Plan is determined annually by the Plan’s 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 do not exceed the maximum that is deductible for federal income tax purposes.  The actual amount of the contribution is determined annually based on the Plan’s funded status and return on plan assets as of the measurement date, which is December 31.  For the plan year ending December 31, 2016, Trustmark’s minimum required contribution to the Plan is expected to be zero; however, Management and the Board of Directors of Trustmark will monitor the Plan throughout 2016 to determine any additional funding requirements by the Plan’s measurement date.

Supplemental Retirement Plans

Trustmark maintains a nonqualified supplemental retirement plan covering key executive officers and senior officers as well as directors who have elected to defer fees.  The plan provides for retirement and/or death benefits based on a participant’s covered salary or deferred fees.  Although plan benefits may be paid from Trustmark’s general assets, Trustmark has purchased life insurance contracts on the participants covered under the plan, which may be used to fund future benefit payments under the plan.  The measurement date for the plan is December 31.  As a result of the BancTrust merger on February 15, 2013, Trustmark became the administrator of an additional nonqualified supplemental retirement plan, for which the plan benefits were frozen prior to the merger date.

The following table presents information regarding the 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,
	2016		2015		2016		2015
Service cost	$	73	$	107	$	221	$	323
Interest cost		542		520		1,630		1,563
Amortization of prior service cost		63		63		188		188
Recognized net actuarial loss		214		246		649		745
Net periodic benefit cost	$	892	$	936	$	2,688	$	2,819

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Stock and Incentive Compensation Plans

9 Months Ended

Sep. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock and Incentive Compensation Plans

Note 10 – Stock and Incentive Compensation Plans

Trustmark has granted stock and incentive compensation awards subject to the provisions of the Stock and Incentive Compensation Plan (the Stock Plan).  Current outstanding and future grants of stock and incentive compensation awards are subject to the provisions of the Stock Plan, which is designed to provide flexibility to Trustmark regarding its ability to motivate, attract and retain the services of key associates and directors.  The Stock Plan also allows Trustmark to grant nonqualified stock options, incentive stock options, stock appreciation rights, restricted stock, restricted stock units and performance units to key associates and directors.

Restricted Stock Grants

Performance Awards

Trustmark’s performance awards vest over three years and are granted to Trustmark’s executive and senior management teams.  Performance awards granted vest based on performance goals of return on average tangible equity and total shareholder return 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 vest over three years and are granted to members of Trustmark’s Board of Directors as well as Trustmark’s executive and senior management teams.  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 Plan activity for the periods presented:

	Three Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		239,006			327,197
Granted		—			2,000
Released from restriction		(1,587	)		(3,379	)
Forfeited		(283	)		(917	)
Nonvested shares, end of period		237,136			324,901

	Nine Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		212,309			306,657
Granted		99,116			139,291
Released from restriction		(40,888	)		(105,717	)
Forfeited		(33,401	)		(15,330	)
Nonvested shares, end of period		237,136			324,901

The following table presents information regarding compensation expense for awards under the Stock Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Performance awards	$	382	$	319	$	789	$	883
Time-vested awards		559		638		1,952		1,855
Total compensation expense	$	941	$	957	$	2,741	$	2,738

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Contingencies

9 Months Ended

Sep. 30, 2016

Commitments And Contingencies Disclosure [Abstract]

Contingencies

Note 11 – 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, 2016 and 2015, Trustmark had unused commitments to extend credit of $3.110 billion and $2.724 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, 2016 and 2015, Trustmark’s maximum exposure to credit loss in the event of nonperformance by the other party for letters of credit was $113.5 million and $132.2 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, 2016 and 2015, the fair value of collateral held was $27.7 million and $31.7 million, respectively.

Legal Proceedings

Trustmark’s wholly-owned subsidiary, TNB, has been named as a defendant in three 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 (collectively, Class Plaintiffs), 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.  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 a second 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.  In March 2015, the court entered an order authorizing the parties to conduct discovery regarding class certification and setting a deadline for the parties to complete briefing on class certification issues.  In April 2015, the court granted in part and denied in part the defendants’ motions to dismiss the Class Plaintiffs’ claims and the OSIC’s claims.  The court dismissed all of the Class Plaintiffs’ fraudulent transfer claims and dismissed certain of the OSIC’s claims.  The court denied the motions by TNB and the other financial institution defendants to dismiss the OSIC’s constructive fraudulent transfer claims.  

On June 23, 2015, the court allowed the Class Plaintiffs to file a Second Amended Class Action Complaint (SAC), which asserted new claims against TNB and certain of the other defendants for (i) aiding, abetting and participating in a fraudulent scheme, (ii) aiding, abetting and participating in violations of the Texas Securities Act, (iii) aiding, abetting and participating in breaches of fiduciary duty, (iv) aiding, abetting and participating in conversion and (v) conspiracy.  On July 14, 2015, the defendants (including TNB) filed motions to dismiss the SAC and to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims against TNB and the other financial institutions that are defendants in the action.  On July 27, 2016, the court denied the motion by TNB and the other financial institution defendants to dismiss the SAC and also denied the motion by TNB and the other financial institution defendants to reconsider the court’s prior denial to dismiss the OSIC’s constructive fraudulent transfer claims.  On August 24, 2016, TNB filed its answer to the SAC.

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.

On April 11, 2016, Trustmark learned that a third Stanford-related lawsuit had been filed on April 11, 2016 in the Superior Court of Justice in Ontario, Canada, by The Toronto-Dominion Bank (“TD Bank”), naming TNB and three other financial institutions not affiliated with Trustmark as defendants.  The complaint seeks a declaration specifying the degree to which each of TNB and the other defendants are liable in respect of any loss and damage for which TD Bank is found to be liable in a litigation commenced against TD Bank brought by the Joint Liquidators of Stanford International Bank Limited in the Superior Court of Justice, Commercial List in Ontario, Canada (the “Joint Liquidators’ Action”), as well as contribution and indemnity in respect of any judgment, interest and costs TD Bank is ordered to pay in the Joint Liquidators’ Action.  To date, TNB has not been served in connection with this action.

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.  All Stanford-related lawsuits are in pre-trial stages.

TNB has been named as a defendant in two separately filed but now consolidated lawsuits involving two testamentary trusts created in the will of Kathleen Killebrew Paine for her two children, Carolyn Paine Davis and W.K. Paine.  TNB is named as the Trustee in both trusts.  The lawsuits were filed on June 30, 2014 in the Chancery Court of the First Judicial District of Hinds County, Mississippi by Jennifer Davis Michael, Elizabeth Paine Lindigrin, Wilmer Harrison Paine, Kenneth Whitworth Paine, Robert Harvey Paine and Nathan Davis, who are all children of Mrs. Davis and Mr. Paine.  The complaints allege that the plaintiffs are vested current beneficiaries of the respective trusts; that the plaintiffs should have been entitled to be considered for distributions of trust income; and that the interests of Mrs. Davis and Mr. Paine were favored over plaintiffs’ interest in both the distribution of income and in the making of trust investments.  Plaintiffs seek compensatory damages, refund of trust fees and sweep fees, punitive damages, attorneys’ fees and pre- and post-judgment interest.  On March 9, 2015, the court granted TNB’s motion to add Mrs. Davis and Mr. W.K. Paine as cross-defendants.  Following a bench trial that concluded on January 20, 2016, the judge ordered the parties to enter into mandatory mediation.  On February 22, 2016, the mediator reported to the judge that the mediation had failed to resolve the matter.  All post-trial briefings have been completed by the parties and submitted to the court.  The judge will consider those submissions and then enter a ruling on the case at some point in the future.

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 accordance FASB ASC Topic 450-20, “Loss Contingencies,” Trustmark will establish an accrued liability for litigation matters when those matters present loss contingencies that are both probable and reasonably estimable.  At the present time, Trustmark believes, based on its evaluation and the advice of legal counsel, that a loss in any such proceeding is not both probable and reasonably estimable.

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Earnings Per Share (EPS)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Earnings Per Share (EPS)

Note 12 – 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,
	2016		2015		2016		2015
Basic shares		67,625		67,557		67,618		67,547
Dilutive shares		168		150		153		130
Diluted shares		67,793		67,707		67,771		67,677

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,
	2016		2015		2016		2015
Weighted-average antidilutive stock awards		—		1		2		1

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Statements of Cash Flows

9 Months Ended

Sep. 30, 2016

Supplemental Cash Flow Information [Abstract]

Statements of Cash Flows

Note 13 – Statements of Cash Flows

The following table reflects specific transaction amounts for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016		2015
Income taxes paid	$	24,646	$	15,291
Interest expense paid on deposits and borrowings		17,132		14,639
Noncash transfers from loans to other real estate (1)		21,972		26,196

(1) Includes transfers from covered loans to covered other real estate.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2016

Stockholders Equity Note [Abstract]

Shareholders' Equity

Note 14 – Shareholders’ Equity

Regulatory Capital

Trustmark and TNB are subject to minimum risk-based capital and leverage capital requirements, as described in the section captioned “Capital Adequacy” included in Part I. Item 1. – Business of Trustmark’s 2015 Annual Report on Form 10-K, 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.  Effective January 1, 2016, Trustmark’s and TNB’s minimum risk-based capital requirements include the year-one phased in capital conservation buffer of 0.625%.  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 and limit Trustmark’s and TNB’s ability to pay dividends.  As of September 30, 2016, Trustmark and TNB exceeded all applicable minimum capital standards.  In addition, Trustmark and TNB met applicable regulatory guidelines to be considered well-capitalized at September 30, 2016.  To be categorized in this manner, Trustmark and TNB maintained minimum common equity Tier 1 risk-based capital, Tier 1 risk-based capital, total risk-based capital and Tier 1 leverage ratios as set forth in the accompanying table, and were not subject to any written agreement, order or capital directive, or prompt corrective action directive issued by their primary federal regulators to meet and maintain a specific capital level for any capital measures.  There are no significant conditions or events that have occurred since September 30, 2016, 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 under regulatory capital standards in effect at September 30, 2016 and December 31, 2015 ($ in thousands):

	Actual
	Regulatory Capital					Minimum			To Be Well
	Amount		Ratio			Requirement			Capitalized
At September 30, 2016:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,194,729		12.35	%		5.125	%	n/a
Trustmark National Bank		1,235,923		12.78	%		5.125	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,254,453		12.97	%		6.625	%	n/a
Trustmark National Bank		1,235,923		12.78	%		6.625	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,336,704		13.82	%		8.625	%	n/a
Trustmark National Bank		1,318,174		13.63	%		8.625	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,254,453		9.92	%		4.00	%	n/a
Trustmark National Bank		1,235,923		9.79	%		4.00	%		5.00	%
At December 31, 2015:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,161,598		12.57	%		4.50	%	n/a
Trustmark National Bank		1,201,113		13.00	%		4.50	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,220,535		13.21	%		6.00	%	n/a
Trustmark National Bank		1,201,113		13.00	%		6.00	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,300,146		14.07	%		8.00	%	n/a
Trustmark National Bank		1,280,724		13.86	%		8.00	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,220,535		10.03	%		4.00	%	n/a
Trustmark National Bank		1,201,113		9.89	%		4.00	%		5.00	%

Stock Repurchase Program

On March 11, 2016, the Board of Directors of Trustmark authorized a stock repurchase program under which $100.0 million of Trustmark’s outstanding common stock may be acquired through March 31, 2019.  The shares may be purchased from time to time at prevailing market prices, through open market or privately negotiated transactions, depending on market conditions.  Trustmark did not repurchase any shares of its common stock during the three months ended September 30, 2016.  Trustmark repurchased approximately 34 thousand shares of its common stock during the nine months ended September 30, 2016.

Other Comprehensive Income and Accumulated Other Comprehensive Loss

The following table presents the components of accumulated other comprehensive loss and the related tax effects allocated to each component for the three and nine months ended September 30, 2016 and 2015 ($ in thousands).  Reclassification adjustments related to securities available for sale are included in security losses, net in the accompanying consolidated statements of income.  The amortization of prior service cost, recognized net loss due to lump sum settlements and change in net actuarial loss on pension and other postretirement benefit plans are included in the computation of net periodic benefit cost (see Note 9 – Defined Benefit and Other Postretirement Benefits for additional details).  Reclassification adjustments related to pension and other postretirement benefit plans are included in salaries and employee benefits in the accompanying consolidated statements of income.  Reclassification adjustments related to the cash flow hedge derivative are included in other interest expense in the accompanying consolidated statements of income.

	Three Months Ended September 30, 2016									Three Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding (losses) gains arising during    the period	$	(12,657	)	$	4,841		$	(7,816	)	$	17,872		$	(6,837	)	$	11,035
Reclassification adjustment for net losses realized    in net income		—			—			—			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		2,677			(1,024	)		1,653			1,678			(642	)		1,036
Total securities available for sale    and transferred securities		(9,980	)		3,817			(6,163	)		19,550			(7,479	)		12,071
Pension and other postretirement benefit plans:
Net change in prior service costs		63			(24	)		39			63			(24	)		39
Recognized net loss due to lump sum settlements		463			(177	)		286			603			(230	)		373
Change in net actuarial loss		928			(355	)		573			1,216			(465	)		751
Reclassification related to net losses realized    in net income		1,454			(556	)		898			1,882			(719	)		1,163
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		417			(160	)		257			(1,216	)		465			(751	)
Reclassification adjustment for loss realized    in net income		157			(60	)		97			211			(81	)		130
Total cash flow hedge derivatives		574			(220	)		354			(1,005	)		384			(621	)
Total other comprehensive (loss) income	$	(7,952	)	$	3,041		$	(4,911	)	$	20,427		$	(7,814	)	$	12,613

	Nine Months Ended September 30, 2016									Nine Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding gains arising during    the period	$	32,057		$	(12,261	)	$	19,796		$	13,718		$	(5,248	)	$	8,470
Reclassification adjustment for net losses realized    in net income		310			(119	)		191			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		8,374			(3,203	)		5,171			4,747			(1,816	)		2,931
Total securities available for sale    and transferred securities		40,741			(15,583	)		25,158			18,465			(7,064	)		11,401
Pension and other postretirement benefit plans:
Net change in prior service costs		188			(72	)		116			188			(72	)		116
Recognized net loss due to lump sum settlements		3,134			(1,199	)		1,935			1,499			(573	)		926
Change in net actuarial loss		2,684			(1,026	)		1,658			3,653			(1,397	)		2,256
Reclassification related to net losses realized    in net income		6,006			(2,297	)		3,709			5,340			(2,042	)		3,298
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		(1,360	)		520			(840	)		(1,919	)		734			(1,185	)
Reclassification adjustment for loss realized    in net income		473			(181	)		292			632			(242	)		390
Total cash flow hedge derivatives		(887	)		339			(548	)		(1,287	)		492			(795	)
Total other comprehensive income	$	45,860		$	(17,541	)	$	28,319		$	22,518		$	(8,614	)	$	13,904

The following table presents the changes in the balances of each component of accumulated other comprehensive loss for the periods presented ($ in thousands).  All amounts are presented net of tax.

	Securities Availablefor Sale and Transferred Securities			Defined Benefit Pension Items			Cash Flow Hedge Derivatives			Total
Balance at January 1, 2016	$	(17,394	)	$	(27,840	)	$	(160	)	$	(45,394	)
Other comprehensive income (loss) before reclassification		24,967			—			(840	)		24,127
Amounts reclassified from accumulated other    comprehensive loss		191			3,709			292			4,192
Net other comprehensive income (loss)		25,158			3,709			(548	)		28,319
Balance at September 30, 2016	$	7,764		$	(24,131	)	$	(708	)	$	(17,075	)
Balance at January 1, 2015	$	(11,003	)	$	(31,617	)	$	136		$	(42,484	)
Other comprehensive (loss) income before reclassification		11,401			3,298			(1,185	)		13,514
Amounts reclassified from accumulated other    comprehensive loss		—			—			390			390
Net other comprehensive income (loss)		11,401			3,298			(795	)		13,904
Balance at September 30, 2015	$	398		$	(28,319	)	$	(659	)	$	(28,580	)

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Fair Value

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Fair Value

Note 15 – 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 the 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 the 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 tables summarize financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015, 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, 2016 and the year ended December 31, 2015.

	September 30, 2016
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	58,517	$	—		$	58,517	$	—
Obligations of states and political subdivisions		124,641		—			124,641		—
Mortgage-backed securities		2,227,789		—			2,227,789		—
Securities available for sale		2,410,947		—			2,410,947		—
Loans held for sale		242,097		—			242,097		—
Mortgage servicing rights		65,514		—			—		65,514
Other assets - derivatives		7,901		(25	)		5,179		2,747
Other liabilities - derivatives		8,583		808			7,775		—

	December 31, 2015
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	68,416	$	—		$	68,416	$	—
Obligations of states and political subdivisions		138,609		—			138,609		—
Mortgage-backed securities		2,113,440		—			2,113,440		—
Asset-backed securities and structured financial products		24,957		—			24,957		—
Securities available for sale		2,345,422		—			2,345,422		—
Loans held for sale		160,189		—			160,189		—
Mortgage servicing rights		74,007		—			—		74,007
Other assets - derivatives		3,611		(149	)		2,647		1,113
Other liabilities - derivatives		3,929		1,220			2,709		—

The changes in Level 3 assets measured at fair value on a recurring basis for the nine months ended September 30, 2016 and 2015 are summarized as follows ($ in thousands):

	MSR			Other Assets - Derivatives
Balance, January 1, 2016	$	74,007		$	1,113
Total net (loss) gain included in Mortgage banking, net (1)		(20,885	)		9,486
Additions		12,392			—
Sales		—			(7,852	)
Balance, September 30, 2016	$	65,514		$	2,747
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, 2016	$	(13,519	)	$	904
Balance, January 1, 2015	$	64,358		$	1,299
Total net (loss) gain included in Mortgage banking, net (1)		(7,869	)		6,193
Additions		13,320			—
Sales		—			(4,786	)
Balance, September 30, 2015	$	69,809		$	2,706
The amount of total losses for the period included in    earnings that are attributable to the change in unrealized    gains or losses still held at September 30, 2015	$	(433	)	$	(169	)

(1) Total net (loss) gain included in Mortgage banking, net relating to the MSR includes changes in fair value due to market changes and due to run-off.

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, 2016, 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.  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.  Impaired LHFI are primarily collateral dependent loans and are assessed using a fair value approach.  Fair value estimates for collateral dependent loans are derived from 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, 2016, Trustmark had outstanding balances of $28.6 million in impaired LHFI that were specifically identified for evaluation and written down to the fair value of the underlying collateral less cost to sell based on the fair value of the collateral or other unobservable input compared to $26.5 million at December 31, 2015.  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.

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.  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, 2016, 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 $22.0 million (utilizing Level 3 valuation inputs) during the nine months ended September 30, 2016 compared with $26.8 million for the same period in 2015.  In connection with the measurement and initial recognition of the foregoing foreclosed assets, Trustmark recognized charge-offs of the allowance for loan losses totaling $19.8 million and $7.4 million for the first nine months of 2016 and 2015, respectively.  Other than foreclosed assets measured at fair value upon initial recognition, $26.5 million of foreclosed assets were remeasured during the first nine months of 2016, requiring write-downs of $3.7 million to reach their current fair values compared to $39.4 million of foreclosed assets that were remeasured during the first nine months of 2015, requiring write-downs of $2.4 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 Annual Report on Form 10-K for the year ended December 31, 2015.

The carrying amounts and estimated fair values of financial instruments at September 30, 2016 and December 31, 2015, are as follows ($ in thousands):

	September 30, 2016				December 31, 2015
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Level 2 Inputs:
Cash and short-term investments	$	384,445	$	384,445	$	278,001	$	278,001
Securities held to maturity		1,143,234		1,173,101		1,187,818		1,195,367
Level 3 Inputs:
Net LHFI		7,428,333		7,493,082		7,023,766		7,136,105
Net acquired loans		284,357		284,357		378,419		378,419
FDIC indemnification asset		—		—		738		738
Financial Liabilities:
Level 2 Inputs:
Deposits		9,685,701		9,689,282		9,588,230		9,592,531
Short-term liabilities		927,710		927,710		853,659		853,659
Long-term FHLB advances		751,075		751,077		501,155		501,160
Subordinated notes		49,993		50,484		49,969		51,405
Junior subordinated debt securities		61,856		40,825		61,856		49,021

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 necessarily be 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, 2016 and December 31, 2015.

Fair Value Option

Trustmark has elected to account for its mortgage LHFS purchased or originated on or after October 1, 2014 under the fair value option, with interest income on these mortgage LHFS reported in interest and fees on LHFS and LHFI.  The fair value of the mortgage LHFS is determined using quoted prices for a similar asset, adjusted for specific attributes of that loan.  The mortgage LHFS are actively managed and monitored and certain market risks of the loans may be mitigated through the use of derivatives.  These derivative instruments are carried at fair value with changes in fair value recorded in noninterest income in mortgage banking, net.  The changes in the fair value of the LHFS are largely offset by changes in the fair value of the derivative instruments.  For the three and nine months ended September 30, 2016, a net loss of $1.1 million and a net gain of $2.6 million, respectively, was recorded in noninterest income in mortgage banking, net for changes in the fair value of the LHFS accounted for under the fair value option, compared to a net gain of $3.6 million and $1.7 million for the three and nine months ended September 30, 2015, respectively.  Interest and fees on LHFS and LHFI for the three and nine months ended September 30, 2016 included $1.5 million and $3.7 million, respectively, of interest earned on the LHFS accounted for under the fair value option, compared to $1.4 million and $3.7 million for the same time periods in 2015.  Election of the fair value option allows Trustmark to reduce the accounting volatility that would otherwise result from the asymmetry created by accounting for the financial instruments at the lower of cost or fair value and the derivatives at fair value.  The fair value option election does not apply to the GNMA optional repurchase loans which do not meet the requirements under FASB ASC Topic 825 to be accounted for under the fair value option.  GNMA optional repurchase loans totaled $37.3 million and $36.0 million at September 30, 2016 and December 31, 2015, respectively, and are included in LHFS on the accompanying consolidated balance sheets.

The following table provides information about the fair value and the contractual principal outstanding of the LHFS accounted for under the fair value option as of September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Fair value of LHFS	$	204,839	$	124,165
LHFS contractual principal outstanding		198,288		121,608
Fair value less unpaid principal	$	6,551	$	2,557

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 2016

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

Note 16 – Derivative Financial Instruments

Derivatives Designated as Hedging Instruments

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, “Derivatives and Hedging,” 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, which became effective 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 for the nine months ended September 30, 2016 and 2015.  The accumulated net after-tax loss related to the effective cash flow hedge included in accumulated other comprehensive loss totaled $708 thousand and $160 thousand at September 30, 2016 and December 31, 2015, respectively.  Amounts reported in accumulated other comprehensive loss related to this derivative are reclassified to other interest expense as interest payments are made on Trustmark’s variable rate junior subordinated debentures.  During the next twelve months, Trustmark estimates that $442 thousand will be reclassified as an increase to other 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 the MSR attributable to interest rates.  These transactions are considered freestanding derivatives that do not otherwise qualify for hedge accounting.  The total notional amount of these derivative instruments were $338.5 million at September 30, 2016 compared to $264.5 million at December 31, 2015.  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 the MSR.  The impact of this strategy resulted in a net negative ineffectiveness of $1.2 million compared to a net positive ineffectiveness of $479 thousand for the three months ended September 30, 2016 and 2015, respectively.  For the nine months ended September 30, 2016 and 2015, the impact was a net negative ineffectiveness of $2.7 million compared to a net positive ineffectiveness of $3.9 million, respectively.

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.  Changes in the fair value of these derivative instruments are recorded in noninterest income in mortgage banking, net and are offset by changes in the fair value of LHFS.  Trustmark’s off-balance sheet obligations under these derivative instruments totaled $301.5 million at September 30, 2016, with a negative valuation adjustment of $1.2 million, compared to $190.5 million, with a positive valuation adjustment of $262 thousand as of December 31, 2015.

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 $195.7 million at September 30, 2016, with a positive valuation adjustment of $2.7 million, compared to $108.1 million, with a positive valuation adjustment of $1.1 million as of December 31, 2015.

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.  Derivatives 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, 2016, Trustmark had interest rate swaps with an aggregate notional amount of $350.3 million related to this program, compared to $359.3 million as of December 31, 2015.

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 derivatives obligations.

As of September 30, 2016 and December 31, 2015, 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 $5.9 million and $2.6 million, respectively.  As of September 30, 2016, Trustmark had posted collateral of $5.8 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, 2016, 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.  At both September 30, 2016 and December 31, 2015, Trustmark had entered into two risk participation agreements as a beneficiary with an aggregate notional amount of $14.3 million and $14.8 million, respectively.  At September 30, 2016, Trustmark had entered into five risk participation agreements as a guarantor with an aggregate notional amount of $28.6 million compared to one risk participation agreement as a guarantor with an aggregate notional amount of $5.9 million at December 31, 2015.  The aggregate fair values of these risk participation agreements were immaterial at September 30, 2016 and December 31, 2015.

Tabular Disclosures

The following tables disclose the fair value of derivative instruments in Trustmark’s balance sheets as of September 30, 2016 and December 31, 2015 as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):

	September 30, 2016			December 31, 2015
Derivatives in hedging relationships
Interest rate contracts:
Interest rate swaps included in other assets	$	(1,147	)	$	(259	)
Derivatives not designated as hedging instruments
Interest rate contracts:
Futures contracts included in other assets	$	(199	)	$	(207	)
Exchange traded purchased options included in other assets		174			58
OTC written options (rate locks) included in other assets		2,747			1,113
Interest rate swaps included in other assets		6,298			2,888
Credit risk participation agreements included in other assets		28			18
Forward contracts included in other liabilities		1,170			(262	)
Exchange traded written options included in other liabilities		808			1,220
Interest rate swaps included in other liabilities		6,570			2,954
Credit risk participation agreements included in other liabilities		35			17

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Derivatives in hedging relationships
Amount of loss reclassified from accumulated other    comprehensive loss and recognized in other interest expense	$	(157	)	$	(211	)	$	(473	)	$	(632	)
Derivatives not designated as hedging instruments
Amount of (loss) gain recognized in mortgage banking, net	$	(688	)	$	1,265		$	11,042		$	4,221
Amount of gain (loss) recognized in bank card and other fees		1			(128	)		(206	)		(94	)

The following table discloses the amount included in other comprehensive income (loss), net of tax, for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
Derivatives in cash flow hedging relationship
Amount of gain (loss) recognized in other comprehensive    income (loss), net of tax	$	257	$	(751	)	$	(840	)	$	(1,185	)

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, 2016 and December 31, 2015 is presented in the following tables ($ in thousands):

Offsetting of Derivative Assets
As of September 30, 2016
							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	$	5,151	$	—	$	5,151	$	—	$	—	$	5,151

Offsetting of Derivative Liabilities
As of September 30, 2016
							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	$	6,570	$	—	$	6,570	$	—	$	(4,932	)	$	1,638

Offsetting of Derivative Assets
As of December 31, 2015
							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	$	2,629	$	—	$	2,629	$	—	$	—	$	2,629

Offsetting of Derivative Liabilities
As of December 31, 2015
							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	$	2,954	$	—	$	2,954	$	—	$	(1,195	)	$	1,759

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Segment Information

9 Months Ended

Sep. 30, 2016

Segment Reporting [Abstract]

Segment Information

Note 17 – Segment Information

Trustmark’s management reporting structure includes three segments: General Banking, Wealth Management and Insurance.  For a complete overview of Trustmark’s operating segments, see Note 21 – Segment Information included in Part II. Item 8. – Financial Statements and Supplementary Data, of Trustmark’s 2015 Annual Report on Form 10-K.  There have been no significant changes in Trustmark’s operating segments during the periods presented.

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 TNB’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,
	2016		2015		2016		2015
General Banking
Net interest income	$	97,395	$	97,408	$	287,950	$	291,483
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		27,207		28,320		81,230		82,477
Noninterest expense		84,358		90,043		267,063		262,403
Income before income taxes		35,269		31,915		90,387		103,797
Income taxes		6,844		6,207		18,168		22,588
General banking net income	$	28,425	$	25,708	$	72,219	$	81,209
Selected Financial Information
Average assets	$	12,916,011	$	12,231,450	$	12,788,736	$	12,123,213
Depreciation and amortization	$	9,274	$	9,209	$	26,483	$	27,256
Wealth Management
Net interest income	$	119	$	91	$	571	$	194
Noninterest income		7,434		7,748		22,681		23,477
Noninterest expense		6,216		6,195		18,200		19,373
Income before income taxes		1,337		1,644		5,052		4,298
Income taxes		512		629		1,933		1,644
Wealth management net income	$	825	$	1,015	$	3,119	$	2,654
Selected Financial Information
Average assets	$	6,039	$	4,181	$	1,842	$	3,020
Depreciation and amortization	$	44	$	44	$	131	$	139
Insurance
Net interest income	$	50	$	107	$	160	$	270
Noninterest income		10,075		9,905		28,308		27,925
Noninterest expense		7,334		7,322		21,768		21,266
Income before income taxes		2,791		2,690		6,700		6,929
Income taxes		1,059		983		2,550		2,612
Insurance net income	$	1,732	$	1,707	$	4,150	$	4,317
Selected Financial Information
Average assets	$	78,167	$	78,146	$	63,652	$	58,570
Depreciation and amortization	$	186	$	213	$	569	$	600
Consolidated
Net interest income	$	97,564	$	97,606	$	288,681	$	291,947
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		44,716		45,973		132,219		133,879
Noninterest expense		97,908		103,560		307,031		303,042
Income before income taxes		39,397		36,249		102,139		115,024
Income taxes		8,415		7,819		22,651		26,844
Consolidated net income	$	30,982	$	28,430	$	79,488	$	88,180
Selected Financial Information
Average assets	$	13,000,217	$	12,313,777	$	12,854,230	$	12,184,803
Depreciation and amortization	$	9,504	$	9,466	$	27,183	$	27,995

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Accounting Policies Recently Adopted and Pending Accounting Pronouncements

9 Months Ended

Sep. 30, 2016

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

Accounting Policies Recently Adopted and Pending Accounting Pronouncements

Note 18 – Accounting Policies Recently Adopted and Pending Accounting Pronouncements

ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” Issued in August 2016, ASU 2016-15 provides guidance to reduce the diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments of ASU 2016-15 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-15 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.”  Issued in June 2016, ASU 2016-13 will add FASB ASC Topic 326, “Financial Instruments-Credit Losses” and finalizes amendments to FASB ASC Subtopic 825-15, “Financial Instruments-Credit Losses.”  The amendments of ASU 2016-13 are intended to provide financial statement users with more decision-useful information related to expected credit losses on financial instruments and other commitments to extend credit by replacing the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to determine credit loss estimates.  The amendments of ASU 2016-13 eliminate the probable initial recognition threshold and, in turn, reflect an entity’s current estimate of all expected credit losses.  ASU 2016-13 does not specify the method for measuring expected credit losses, and an entity is allowed to apply methods that reasonably reflect its expectations of the credit loss estimate.  Additionally, the amendments of ASU 2016-13 require that credit losses on available for sale debt securities be presented as an allowance rather than as a write-down.  The amendments of ASU 2016-13 are effective for interim and annual periods beginning after December 15, 2019.  Earlier application is permitted for interim and annual periods beginning after December 15, 2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements.

ASU 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.”  Issued in March 2016, ASU 2016-09 seeks to reduce complexity in accounting standards by simplifying several aspects of the accounting for share-based payment transactions, including (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flow; (3) forfeitures; (4) minimum statutory tax withholding requirements; (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax withholding purposes; (6) the practical expedient for estimating the expected term; and (7) intrinsic value.  The amendments of ASU 2016-09 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-07, “Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting.” Issued in March 2016, ASU 2016-07 affects all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. ASU 2016-07 simplifies the transition to the equity method of accounting by eliminating the retroactive adjustment of the investment when an investment qualifies for use of the equity method, among other things.  The amendments of ASU 2016-07 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-07 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-05, “Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships.” Issued in March 2016, ASU 2016-05 clarifies that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under ASC Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met.  The amendments of ASU 2016-05 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-05 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-02, “Leases (Topic 842).”Issued in February 2016, ASU 2016-02 was issued by the FASB to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and by disclosing key information about leasing arrangements.  ASU 2016-02 will, among other things, require lessees to recognize a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 does not significantly change lease accounting requirements applicable to lessors; however, the ASU contains some targeted improvements that are intended to align, where necessary, lessor accounting with the lessee accounting model and with the updated revenue recognition guidance issued in 2014.  The amendments of ASU 2016-02 are effective for interim and annual periods beginning after December 15, 2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-02 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-01, “Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (An Amendment of the FASB Accounting Standards Codification).”  Issued in January 2016, ASU 2016-01 is intended to enhance the reporting model for financial instruments to provide users of financial statements with improved decision-making information.  The amendments of ASU 2016-01 include: (i) requiring equity investments, except those accounted for under the equity method of accounting or those that result in the consolidation of an investee, to be measured at fair value with changes in fair value recognized in net income; (ii) requiring a qualitative assessment to identify impairment of equity investments without readily determinable fair values; and (iii) clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets.  The amendments of ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-01 is not expected to have a material impact on 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 a 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 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.  ASU 2015-14, “Revenue from Contracts with Customers (Topic 606)-Deferral of the Effective Date,” issued in August 2015, defers the effective date of ASU 2014-09 by one year.  ASU 2015-14 provides that the amendments of ASU 2014-09 become effective for interim and annual periods beginning after December 15, 2017.  Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period.  All subsequently issued ASUs which provide additional guidance and clarifications to various aspects of FASB ASC Topic 606 will become effective when the amendments of ASU 2014-09 become effective.  Management is currently evaluating the impact ASU 2014-09 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 2014-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

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Accounting Policies Recently Adopted and Pending Accounting Pronouncements (Policies)

9 Months Ended

Sep. 30, 2016

Accounting Policies [Abstract]

Accounting Policies Recently Adopted and Pending Accounting Pronouncements

ASU 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” Issued in August 2016, ASU 2016-15 provides guidance to reduce the diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments of ASU 2016-15 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-15 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.”  Issued in June 2016, ASU 2016-13 will add FASB ASC Topic 326, “Financial Instruments-Credit Losses” and finalizes amendments to FASB ASC Subtopic 825-15, “Financial Instruments-Credit Losses.”  The amendments of ASU 2016-13 are intended to provide financial statement users with more decision-useful information related to expected credit losses on financial instruments and other commitments to extend credit by replacing the current incurred loss impairment methodology with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to determine credit loss estimates.  The amendments of ASU 2016-13 eliminate the probable initial recognition threshold and, in turn, reflect an entity’s current estimate of all expected credit losses.  ASU 2016-13 does not specify the method for measuring expected credit losses, and an entity is allowed to apply methods that reasonably reflect its expectations of the credit loss estimate.  Additionally, the amendments of ASU 2016-13 require that credit losses on available for sale debt securities be presented as an allowance rather than as a write-down.  The amendments of ASU 2016-13 are effective for interim and annual periods beginning after December 15, 2019.  Earlier application is permitted for interim and annual periods beginning after December 15, 2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements.

ASU 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.”  Issued in March 2016, ASU 2016-09 seeks to reduce complexity in accounting standards by simplifying several aspects of the accounting for share-based payment transactions, including (1) accounting for income taxes; (2) classification of excess tax benefits on the statement of cash flow; (3) forfeitures; (4) minimum statutory tax withholding requirements; (5) classification of employee taxes paid on the statement of cash flows when an employer withholds shares for tax withholding purposes; (6) the practical expedient for estimating the expected term; and (7) intrinsic value.  The amendments of ASU 2016-09 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-07, “Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting.” Issued in March 2016, ASU 2016-07 affects all entities that have an investment that becomes qualified for the equity method of accounting as a result of an increase in the level of ownership interest or degree of influence. ASU 2016-07 simplifies the transition to the equity method of accounting by eliminating the retroactive adjustment of the investment when an investment qualifies for use of the equity method, among other things.  The amendments of ASU 2016-07 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-07 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-05, “Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships.” Issued in March 2016, ASU 2016-05 clarifies that a change in the counterparty to a derivative instrument that has been designated as the hedging instrument under ASC Topic 815 does not, in and of itself, require de-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met.  The amendments of ASU 2016-05 are effective for interim and annual periods beginning after December 15, 2016.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-05 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-02, “Leases (Topic 842).”Issued in February 2016, ASU 2016-02 was issued by the FASB to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and by disclosing key information about leasing arrangements.  ASU 2016-02 will, among other things, require lessees to recognize a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis; and a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 does not significantly change lease accounting requirements applicable to lessors; however, the ASU contains some targeted improvements that are intended to align, where necessary, lessor accounting with the lessee accounting model and with the updated revenue recognition guidance issued in 2014.  The amendments of ASU 2016-02 are effective for interim and annual periods beginning after December 15, 2018.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-02 is not expected to have a material impact on Trustmark’s consolidated financial statements.

ASU 2016-01, “Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (An Amendment of the FASB Accounting Standards Codification).”  Issued in January 2016, ASU 2016-01 is intended to enhance the reporting model for financial instruments to provide users of financial statements with improved decision-making information.  The amendments of ASU 2016-01 include: (i) requiring equity investments, except those accounted for under the equity method of accounting or those that result in the consolidation of an investee, to be measured at fair value with changes in fair value recognized in net income; (ii) requiring a qualitative assessment to identify impairment of equity investments without readily determinable fair values; and (iii) clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets.  The amendments of ASU 2016-01 are effective for interim and annual periods beginning after December 15, 2017.  Management is currently evaluating the impact this ASU will have on Trustmark’s consolidated financial statements; however, the adoption of ASU 2016-01 is not expected to have a material impact on 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 a 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 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.  ASU 2015-14, “Revenue from Contracts with Customers (Topic 606)-Deferral of the Effective Date,” issued in August 2015, defers the effective date of ASU 2014-09 by one year.  ASU 2015-14 provides that the amendments of ASU 2014-09 become effective for interim and annual periods beginning after December 15, 2017.  Earlier application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period.  All subsequently issued ASUs which provide additional guidance and clarifications to various aspects of FASB ASC Topic 606 will become effective when the amendments of ASU 2014-09 become effective.  Management is currently evaluating the impact ASU 2014-09 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 2014-09 is not expected to have a material impact on Trustmark’s consolidated financial statements.

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Securities Available for Sale and Held to Maturity (Tables)

9 Months Ended

Sep. 30, 2016

Investments Debt And Equity Securities [Abstract]

Amortized Cost and Estimated Fair Value of Available for Sale and Held to Maturity Securities

The following tables are a summary of the amortized cost and estimated fair value of securities available for sale and held to maturity at September 30, 2016 and December 31, 2015 ($ in thousands):

	Securities Available for Sale									Securities Held to Maturity
September 30, 2016	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Estimated Fair Value
U.S. Government agency obligations
Issued by U.S. Government agencies	$	58,259	$	482	$	(507	)	$	58,234	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		257		26		—			283		3,636		337		—			3,973
Obligations of states and political    subdivisions		121,485		3,167		(11	)		124,641		52,937		2,615		(4	)		55,548
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		36,130		712		(54	)		36,788		16,183		666		—			16,849
Issued by FNMA and FHLMC		554,916		7,239		(166	)		561,989		39,989		810		—			40,799
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,353,984		21,507		(1,092	)		1,374,399		831,662		18,690		(60	)		850,292
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		247,689		6,945		(21	)		254,613		198,827		6,921		(108	)		205,640
Total	$	2,372,720	$	40,078	$	(1,851	)	$	2,410,947	$	1,143,234	$	30,039	$	(172	)	$	1,173,101
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	68,314	$	555	$	(734	)	$	68,135	$	—	$	—	$	—		$	—
Issued by U.S. Government sponsored    agencies		258		23		—			281		101,782		3,282		—			105,064
Obligations of states and political    subdivisions		134,719		3,922		(32	)		138,609		55,892		2,918		—			58,810
Mortgage-backed securities
Residential mortgage pass-through    securities
Guaranteed by GNMA		25,602		399		(189	)		25,812		17,363		342		(49	)		17,656
Issued by FNMA and FHLMC		222,899		2,956		(313	)		225,542		10,368		311		—			10,679
Other residential mortgage-backed    securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		1,584,338		9,541		(11,019	)		1,582,860		820,012		4,951		(4,742	)		820,221
Commercial mortgage-backed securities
Issued or guaranteed by FNMA,    FHLMC or GNMA		278,429		2,689		(1,892	)		279,226		182,401		1,700		(1,164	)		182,937
Asset-backed securities and structured    financial products		25,003		79		(125	)		24,957		—		—		—			—
Total	$	2,339,562	$	20,164	$	(14,304	)	$	2,345,422	$	1,187,818	$	13,504	$	(5,955	)	$	1,195,367

Securities with Gross Unrealized Losses, Segregated by Length of Impairment

The tables below include securities with gross unrealized losses segregated by length of impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	Less than 12 Months					12 Months or More					Total
September 30, 2016	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Government agency obligations
Issued by U.S. Government agencies	$	10,548	$	(86	)	$	30,728	$	(421	)	$	41,276	$	(507	)
Obligations of states and political subdivisions		7,495		(13	)		969		(2	)		8,464		(15	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		9,072		(50	)		249		(4	)		9,321		(54	)
Issued by FNMA and FHLMC		100,191		(166	)		—		—			100,191		(166	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		72,256		(154	)		98,118		(998	)		170,374		(1,152	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		10,512		(21	)		5,815		(108	)		16,327		(129	)
Total	$	210,074	$	(490	)	$	135,879	$	(1,533	)	$	345,953	$	(2,023	)
December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government agencies	$	18,924	$	(81	)	$	30,591	$	(653	)	$	49,515	$	(734	)
Obligations of states and political subdivisions		4,289		(12	)		2,842		(20	)		7,131		(32	)
Mortgage-backed securities
Residential mortgage pass-through securities
Guaranteed by GNMA		20,300		(222	)		1,863		(16	)		22,163		(238	)
Issued by FNMA and FHLMC		82,177		(313	)		—		—			82,177		(313	)
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		1,135,533		(8,832	)		238,152		(6,929	)		1,373,685		(15,761	)
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or    GNMA		238,668		(2,902	)		11,090		(154	)		249,758		(3,056	)
Asset-backed securities and structured financial    products		6,778		(125	)		—		—			6,778		(125	)
Total	$	1,506,669	$	(12,487	)	$	284,538	$	(7,772	)	$	1,791,207	$	(20,259	)

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 for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Available for Sale	2016		2015		2016			2015
Proceeds from calls and sales of securities	$	—	$	—	$	24,693		$	—
Gross realized gains		—		—		32			—
Gross realized (losses)		—		—		(342	)		—

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, 2016, 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 Available for Sale				Securities Held to Maturity
	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due in one year or less	$	32,173	$	32,377	$	5,845	$	5,845
Due after one year through five years		99,840		103,180		27,025		28,099
Due after five years through ten years		8,263		8,332		23,703		25,577
Due after ten years		39,725		39,269		—		—
		180,001		183,158		56,573		59,521
Mortgage-backed securities		2,192,719		2,227,789		1,086,661		1,113,580
Total	$	2,372,720	$	2,410,947	$	1,143,234	$	1,173,101

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (Tables)

9 Months Ended

Sep. 30, 2016

Accounts Notes Loans And Financing Receivable Gross Allowance And Net [Abstract]

Loan Portfolio Held for Investment

At September 30, 2016 and December 31, 2015, LHFI consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Loans secured by real estate:
Construction, land development and other land	$	766,685	$	824,723
Secured by 1-4 family residential properties		1,592,453		1,649,501
Secured by nonfarm, nonresidential properties		1,916,153		1,736,476
Other real estate secured		317,680		211,228
Commercial and industrial loans		1,421,382		1,343,211
Consumer loans		170,073		169,135
State and other political subdivision loans		875,973		734,615
Other loans		438,805		422,496
LHFI		7,499,204		7,091,385
Less allowance for loan losses, LHFI		70,871		67,619
Net LHFI	$	7,428,333	$	7,023,766

Summary of LHFI Evaluated for Impairment

The following tables detail LHFI individually and collectively evaluated for impairment at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	4,724	$	761,961	$	766,685
Secured by 1-4 family residential properties		20,107		1,572,346		1,592,453
Secured by nonfarm, nonresidential properties		10,313		1,905,840		1,916,153
Other real estate secured		1,731		315,949		317,680
Commercial and industrial loans		16,525		1,404,857		1,421,382
Consumer loans		189		169,884		170,073
State and other political subdivision loans		—		875,973		875,973
Other loans		821		437,984		438,805
Total	$	54,410	$	7,444,794	$	7,499,204

	December 31, 2015
	LHFI Evaluated for Impairment
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	6,123	$	818,600	$	824,723
Secured by 1-4 family residential properties		23,079		1,626,422		1,649,501
Secured by nonfarm, nonresidential properties		17,800		1,718,676		1,736,476
Other real estate secured		145		211,083		211,228
Commercial and industrial loans		7,622		1,335,589		1,343,211
Consumer loans		31		169,104		169,135
State and other political subdivision loans		—		734,615		734,615
Other loans		512		421,984		422,496
Total	$	55,312	$	7,036,073	$	7,091,385

Impaired Financing Receivables

At September 30, 2016 and December 31, 2015, the carrying amount of LHFI individually evaluated for impairment consisted of the following ($ in thousands):

	September 30, 2016
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	8,186	$	3,113	$	1,611	$	4,724	$	453	$	5,424
Secured by 1-4 family residential properties		25,160		495		19,612		20,107		1,514		21,593
Secured by nonfarm, nonresidential properties		11,633		1,312		9,001		10,313		2,316		14,058
Other real estate secured		1,782		1,000		731		1,731		90		938
Commercial and industrial loans		18,203		12,055		4,470		16,525		2,305		12,073
Consumer loans		193		—		189		189		2		111
State and other political subdivision loans		—		—		—		—		—		—
Other loans		966		—		821		821		154		667
Total	$	66,123	$	17,975	$	36,435	$	54,410	$	6,834	$	54,864

	December 31, 2015
	LHFI
	Unpaid Principal Balance		With No Related Allowance Recorded		With an Allowance Recorded		Total Carrying Amount		Related Allowance		Average Recorded Investment
Loans secured by real estate:
Construction, land development and other land	$	11,113	$	3,395	$	2,728	$	6,123	$	909	$	9,995
Secured by 1-4 family residential properties		27,678		283		22,796		23,079		1,230		24,350
Secured by nonfarm, nonresidential properties		20,387		8,037		9,763		17,800		3,402		21,758
Other real estate secured		160		—		145		145		15		732
Commercial and industrial loans		9,880		1,137		6,485		7,622		3,304		9,863
Consumer loans		34		—		31		31		—		59
State and other political subdivision loans		—		—		—		—		—		—
Other loans		642		—		512		512		128		570
Total	$	69,894	$	12,852	$	42,460	$	55,312	$	8,988	$	67,327

Impact of Modifications Classified as Troubled Debt Restructurings

The following tables illustrate the impact of modifications classified as TDRs as well as those TDRs modified within the last 12 months for which there was a payment default during the period for the periods presented ($ in thousands):

	Three Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Loans secured by 1-4 family residential properties		—	$	—	$	—		2	$	35	$	35

	Nine Months Ended September 30,
	2016						2015
Troubled Debt Restructurings	Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment		Number of Contracts		Pre-Modification Outstanding Recorded Investment		Post-Modification Outstanding Recorded Investment
Construction, land development and other land loans		1	$	14	$	14		—	$	—	$	—
Loans secured by 1-4 family residential properties		8		740		740		10		495		495
Loans secured by nonfarm, nonresidential properties		—		—		—		4		3,512		3,512
Consumer loans		1		2		2		—		—		—
Total		10	$	756	$	756		14	$	4,007	$	4,007

Troubled Debt Restructuring Subsequently Defaulted

	Nine Months Ended September 30,
	2016				2015
TDRs that Subsequently Defaulted	Number of Contracts		Recorded Investment		Number of Contracts		Recorded Investment
Loans secured by 1-4 family residential properties		1	$	101		4	$	243

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 at September 30, 2016 and 2015 ($ in thousands):

	September 30, 2016
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	556	$	556
Secured by 1-4 family residential properties		—		2,545		2,545
Secured by nonfarm, nonresidential properties		—		179		179
Commercial and industrial loans		—		387		387
Consumer loans		—		2		2
Total TDRs	$	—	$	3,669	$	3,669

	September 30, 2015
	Accruing		Nonaccrual		Total
Loans secured by real estate:
Construction, land development and other land	$	—	$	1,006	$	1,006
Secured by 1-4 family residential properties		1,385		2,921		4,306
Secured by nonfarm, nonresidential properties		819		4,503		5,322
Other real estate secured		—		62		62
Commercial and industrial loans		—		477		477
Total TDRs	$	2,204	$	8,969	$	11,173

Carrying Amount of Loans by Credit Quality Indicator

The tables below illustrate the carrying amount of LHFI by credit quality indicator at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	687,123	$	8,494	$	9,410	$	469	$	705,496
Secured by 1-4 family residential    properties			124,472		467		6,262		361		131,562
Secured by nonfarm, nonresidential    properties			1,870,036		3,196		41,668		494		1,915,394
Other real estate secured			314,858		—		1,957		—		316,815
Commercial and industrial loans			1,304,137		9,094		107,405		746		1,421,382
Consumer loans			—		—		—		—		—
State and other political subdivision loans			858,168		6,450		11,355		—		875,973
Other loans			429,403		340		2,232		642		432,617
Total		$	5,588,197	$	28,041	$	180,289	$	2,712	$	5,799,239

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	60,546	$	176	$	—	$	467	$	61,189	$	766,685
Secured by 1-4 family residential    properties		1,435,347		8,173		717		16,654		1,460,891		1,592,453
Secured by nonfarm, nonresidential    properties		759		—		—		—		759		1,916,153
Other real estate secured		865		—		—		—		865		317,680
Commercial and industrial loans		—		—		—		—		—		1,421,382
Consumer loans		167,817		1,845		218		193		170,073		170,073
State and other political subdivision loans		—		—		—		—		—		875,973
Other loans		6,188		—		—		—		6,188		438,805
Total	$	1,671,522	$	10,194	$	935	$	17,314	$	1,699,965	$	7,499,204

	December 31, 2015
		Commercial LHFI
		Pass - Categories 1-6		Special Mention - Category 7		Substandard- Category 8		Doubtful - Category 9		Subtotal
Loans secured by real estate:
Construction, land development and other    land		$	746,227	$	—	$	15,637	$	529	$	762,393
Secured by 1-4 family residential    properties			125,268		345		7,525		190		133,328
Secured by nonfarm, nonresidential    properties			1,680,846		2,031		52,485		361		1,735,723
Other real estate secured			205,097		—		4,768		—		209,865
Commercial and industrial loans			1,295,760		9,473		37,284		694		1,343,211
Consumer loans			—		—		—		—		—
State and other political subdivision loans			713,616		12,478		8,521		—		734,615
Other loans			414,089		183		2,663		375		417,310
Total		$	5,180,903	$	24,510	$	128,883	$	2,149	$	5,336,445

	Consumer LHFI
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual		Subtotal		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	62,158	$	146	$	—	$	26	$	62,330	$	824,723
Secured by 1-4 family residential    properties		1,485,914		7,565		2,058		20,636		1,516,173		1,649,501
Secured by nonfarm, nonresidential    properties		753		—		—		—		753		1,736,476
Other real estate secured		1,363		—		—		—		1,363		211,228
Commercial and industrial loans		—		—		—		—		—		1,343,211
Consumer loans		166,681		2,182		242		30		169,135		169,135
State and other political subdivision loans		—		—		—		—		—		734,615
Other loans		5,186		—		—		—		5,186		422,496
Total	$	1,722,055	$	9,893	$	2,300	$	20,692	$	1,754,940	$	7,091,385

Aging Analysis of Past Due Loans and Nonaccrual Loans, Excluding Covered Loans by Loan Type

The following tables provide an aging analysis of past due and nonaccrual LHFI by loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	1,136	$	78	$	—	$	1,214	$	4,724	$	760,747	$	766,685
Secured by 1-4 family residential properties		6,801		1,803		717		9,321		20,107		1,563,025		1,592,453
Secured by nonfarm, nonresidential    properties		576		—		18		594		10,313		1,905,246		1,916,153
Other real estate secured		144		—		—		144		1,731		315,805		317,680
Commercial and industrial loans		868		180		—		1,048		16,525		1,403,809		1,421,382
Consumer loans		1,465		380		218		2,063		189		167,821		170,073
State and other political subdivision loans		—		—		—		—		—		875,973		875,973
Other loans		147		2		—		149		821		437,835		438,805
Total	$	11,137	$	2,443	$	953	$	14,533	$	54,410	$	7,430,261	$	7,499,204

(1) Past due 90 days or more but still accruing interest.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days orMore (1)		Total		Nonaccrual		Current Loans		Total LHFI
Loans secured by real estate:
Construction, land development and other    land	$	214	$	—	$	—	$	214	$	6,123	$	818,386	$	824,723
Secured by 1-4 family residential properties		6,203		1,800		2,058		10,061		23,079		1,616,361		1,649,501
Secured by nonfarm, nonresidential    properties		437		88		—		525		17,800		1,718,151		1,736,476
Other real estate secured		—		—		—		—		145		211,083		211,228
Commercial and industrial loans		921		45		—		966		7,622		1,334,623		1,343,211
Consumer loans		1,835		347		242		2,424		31		166,680		169,135
State and other political subdivision loans		65		—		—		65		—		734,550		734,615
Other loans		68		—		—		68		512		421,916		422,496
Total	$	9,743	$	2,280	$	2,300	$	14,323	$	55,312	$	7,021,750	$	7,091,385

(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):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Balance at beginning of period	$	71,796		$	71,166		$	67,619		$	69,616
Loans charged-off		(8,279	)		(11,406	)		(14,893	)		(18,688	)
Recoveries		3,070			3,333			9,022			9,347
Net charge-offs		(5,209	)		(8,073	)		(5,871	)		(9,341	)
Provision for loan losses, LHFI		4,284			2,514			9,123			5,332
Balance at end of period	$	70,871		$	65,607		$	70,871		$	65,607

The following tables detail the balance in the allowance for loan losses, LHFI by loan type at September 30, 2016 and 2015 ($ in thousands):

	2016
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land	$	11,587	$	(212	)	$	1,006	$	(3,183	)	$	9,198
Secured by 1-4 family residential properties		10,678		(1,129	)		680		172			10,401
Secured by nonfarm, nonresidential properties		21,563		(1,662	)		823		1,479			22,203
Other real estate secured		2,467		—			5		(213	)		2,259
Commercial and industrial loans		15,815		(6,408	)		519		10,982			20,908
Consumer loans		2,879		(1,398	)		3,397		(1,851	)		3,027
State and other political subdivision loans		809		—			—		68			877
Other loans		1,821		(4,084	)		2,592		1,669			1,998
Total allowance for loan losses, LHFI	$	67,619	$	(14,893	)	$	9,022	$	9,123		$	70,871

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land	$	453	$	8,745	$	9,198
Secured by 1-4 family residential properties		1,514		8,887		10,401
Secured by nonfarm, nonresidential properties		2,316		19,887		22,203
Other real estate secured		90		2,169		2,259
Commercial and industrial loans		2,305		18,603		20,908
Consumer loans		2		3,025		3,027
State and other political subdivision loans		—		877		877
Other loans		154		1,844		1,998
Total allowance for loan losses, LHFI	$	6,834	$	64,037	$	70,871

	2015
	Balance January 1,		Charge-offs			Recoveries		Provision for Loan Losses			Balance September 30,
Loans secured by real estate:
Construction, land development and other land loans	$	13,073	$	(2,236	)	$	1,274	$	395		$	12,506
Secured by 1-4 family residential properties		9,677		(2,013	)		781		1,529			9,974
Secured by nonfarm, nonresidential properties		18,523		(1,282	)		397		(1,517	)		16,121
Other real estate secured		2,141		(24	)		6		(382	)		1,741
Commercial and industrial loans		19,917		(7,243	)		1,553		5,109			19,336
Consumer loans		2,149		(1,543	)		2,639		(1,166	)		2,079
State and other political subdivision loans		1,314		—			—		(624	)		690
Other loans		2,822		(4,347	)		2,697		1,988			3,160
Total allowance for loan losses, LHFI	$	69,616	$	(18,688	)	$	9,347	$	5,332		$	65,607

	Disaggregated by Impairment Method
	Individually		Collectively		Total
Loans secured by real estate:
Construction, land development and other land loans	$	2,054	$	10,452	$	12,506
Secured by 1-4 family residential properties		267		9,707		9,974
Secured by nonfarm, nonresidential properties		2,602		13,519		16,121
Other real estate secured		28		1,713		1,741
Commercial and industrial loans		2,956		16,380		19,336
Consumer loans		—		2,079		2,079
State and other political subdivision loans		—		690		690
Other loans		200		2,960		3,160
Total allowance for loan losses, LHFI	$	8,107	$	57,500	$	65,607

XML

Acquired Loans (Tables)

9 Months Ended

Sep. 30, 2016

Certain Loans Acquired In Transfer Not Accounted For As Debt Securities [Abstract]

Schedule of Covered and Noncovered Acquired Loans by Type

At September 30, 2016 and December 31, 2015, acquired loans consisted of the following ($ in thousands):

	September 30, 2016				December 31, 2015
	Noncovered		Covered (1)		Noncovered		Covered
Loans secured by real estate:
Construction, land development and other land	$	25,040	$	—	$	41,623	$	1,021
Secured by 1-4 family residential properties		72,689		3,912		86,950		10,058
Secured by nonfarm, nonresidential properties		110,606		—		135,626		4,638
Other real estate secured		20,903		—		23,860		1,286
Commercial and industrial loans		39,519		—		55,075		624
Consumer loans		3,878		—		5,641		—
Other loans		19,190		—		23,936		73
Acquired loans		291,825		3,912		372,711		17,700
Less allowance for loan losses, acquired loans		11,330		50		11,259		733
Net acquired loans	$	280,495	$	3,862	$	361,452	$	16,967

(1) Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

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 Impaired			Acquired Not ASC 310-30 (1)			Acquired Impaired			Acquired Not ASC 310-30 (1)
Carrying value, net at January 1, 2015	$	434,151		$	81,091		$	20,504		$	1,604
Accretion to interest income		28,193			479			2,308			—
Payments received, net		(164,671	)		(15,484	)		(8,592	)		(33	)
Other (2)		(1,589	)		—			391			—
Less change in allowance for loan losses, acquired loans		(718	)		—			785			—
Carrying value, net at December 31, 2015		295,366			66,086			15,396			1,571
Transfers (3)		9,157			446			(9,157	)		(446	)
Accretion to interest income		13,498			40			853			—
Payments received, net		(75,875	)		(28,861	)		(4,203	)		(421	)
Other (2)		709			—			(414	)		—
Less change in allowance for loan losses, acquired loans		(523	)		452			1,137			(454	)
Carrying value, net at September 30, 2016	$	242,332		$	38,163		$	3,612		$	250

(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, "Loans and Debt Securities Acquired with Deteriorated Credit Quality."

(2) Includes miscellaneous timing adjustments as well as acquired loan terminations through foreclosure, charge-off and other terminations.

(3) Covered acquired loans transferred to noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

Changes in Accretable Yield of Acquired Loans

The following table presents changes in the accretable yield for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Accretable yield at beginning of period	$	(52,672	)	$	(77,149	)
Accretion to interest income		14,351			24,907
Disposals		4,306			8,194
Reclassification from nonaccretable difference (1)		(7,046	)		(12,215	)
Accretable yield at end of period	$	(41,061	)	$	(56,263	)

(1) 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 periods presented ($ in thousands):

	Three Months Ended September 30, 2016									Nine Months Ended September 30, 2016
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	12,218		$	262		$	12,480		$	11,259		$	733		$	11,992
Transfers (1)		215			(215	)		—			215			(215	)		—
Provision for loan losses, acquired loans		686			5			691			2,969			(362	)		2,607
Loans charged-off		(2,590	)		—			(2,590	)		(4,959	)		(82	)		(5,041	)
Recoveries		801			(2	)		799			1,846			(24	)		1,822
Net charge-offs		(1,789	)		(2	)		(1,791	)		(3,113	)		(106	)		(3,219	)
Balance at end of period	$	11,330		$	50		$	11,380		$	11,330		$	50		$	11,380

	Three Months Ended September 30, 2015									Nine Months Ended September 30, 2015
	Noncovered			Covered			Total			Noncovered			Covered			Total
Balance at beginning of period	$	11,927		$	702		$	12,629		$	10,541		$	1,518		$	12,059
Provision for loan losses, acquired loans		1,221			35			1,256			2,797			(369	)		2,428
Loans charged-off		(2,456	)		(110	)		(2,566	)		(5,024	)		(560	)		(5,584	)
Recoveries		725			141			866			3,103			179			3,282
Net (charge-offs) recoveries		(1,731	)		31			(1,700	)		(1,921	)		(381	)		(2,302	)
Balance at end of period	$	11,417		$	768		$	12,185		$	11,417		$	768		$	12,185

(1) The allowance for loan losses on covered acquired loans other than loans secured by 1-4 family residential properties transferred to the allowance for loan losses on noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

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, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	14,624	$	117	$	7,900	$	322	$	22,963
Secured by 1-4 family    residential properties			17,629		56		4,249		310		22,244
Secured by nonfarm,    nonresidential properties			88,799		1,071		20,167		516		110,553
Other real estate secured			16,313		—		3,482		673		20,468
Commercial and industrial loans			23,860		23		14,230		1,406		39,519
Consumer loans			—		—		—		—		—
Other loans			13,361		—		5,665		162		19,188
Total noncovered loans			174,586		1,267		55,693		3,389		234,935
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			—		—		—		—		—
Secured by 1-4 family    residential properties			185		12		60		—		257
Secured by nonfarm,    nonresidential properties			—		—		—		—		—
Other real estate secured			—		—		—		—		—
Commercial and industrial loans			—		—		—		—		—
Other loans			—		—		—		—		—
Total covered loans			185		12		60		—		257
Total acquired loans		$	174,771	$	1,279	$	55,753	$	3,389	$	235,192

	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,066	$	3	$	8	$	—	$	2,077	$	25,040
Secured by 1-4 family    residential properties		47,666		1,783		902		94		50,445		72,689
Secured by nonfarm,    nonresidential properties		53		—		—		—		53		110,606
Other real estate secured		435		—		—		—		435		20,903
Commercial and industrial loans		—		—		—		—		—		39,519
Consumer loans		3,825		48		5		—		3,878		3,878
Other loans		2		—		—		—		2		19,190
Total noncovered loans		54,047		1,834		915		94		56,890		291,825
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—
Secured by 1-4 family    residential properties		3,311		136		208		—		3,655		3,912
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—
Other loans		—		—		—		—		—		—
Total covered loans		3,311		136		208		—		3,655		3,912
Total acquired loans	$	57,358	$	1,970	$	1,123	$	94	$	60,545	$	295,737

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

	December 31, 2015
		Commercial Loans
		Pass - Categories 1-6		Special Mention - Category 7		Substandard - Category 8		Doubtful - Category 9		Subtotal
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land		$	15,839	$	253	$	19,252	$	3,874	$	39,218
Secured by 1-4 family    residential properties			22,272		27		5,033		331		27,663
Secured by nonfarm,    nonresidential properties			106,924		2,301		25,690		711		135,626
Other real estate secured			19,346		—		3,777		731		23,854
Commercial and industrial loans			36,670		844		15,526		2,035		55,075
Consumer loans			—		—		—		—		—
Other loans			17,150		—		6,624		162		23,936
Total noncovered loans			218,201		3,425		75,902		7,844		305,372
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land			235		—		588		119		942
Secured by 1-4 family    residential properties			869		107		534		—		1,510
Secured by nonfarm,    nonresidential properties			4,060		35		472		—		4,567
Other real estate secured			730		—		111		—		841
Commercial and industrial loans			560		22		42		—		624
Other loans			70		—		—		—		70
Total covered loans			6,524		164		1,747		119		8,554
Total acquired loans		$	224,725	$	3,589	$	77,649	$	7,963	$	313,926

	Consumer Loans
	Current		Past Due 30-89 Days		Past Due 90 Days or More		Nonaccrual (2)		Subtotal		Total Acquired Loans
Noncovered Loans:
Loans secured by real estate:
Construction, land development    and other land	$	2,353	$	24	$	28	$	—	$	2,405	$	41,623
Secured by 1-4 family    residential properties		56,371		1,841		930		145		59,287		86,950
Secured by nonfarm,    nonresidential properties		—		—		—		—		—		135,626
Other real estate secured		6		—		—		—		6		23,860
Commercial and industrial loans		—		—		—		—		—		55,075
Consumer loans		5,498		142		1		—		5,641		5,641
Other loans		—		—		—		—		—		23,936
Total noncovered loans		64,228		2,007		959		145		67,339		372,711
Covered Loans: (1)
Loans secured by real estate:
Construction, land development    and other land		70		9		—		—		79		1,021
Secured by 1-4 family    residential properties		7,472		314		762		—		8,548		10,058
Secured by nonfarm,    nonresidential properties		71		—		—		—		71		4,638
Other real estate secured		445		—		—		—		445		1,286
Commercial and industrial loans		—		—		—		—		—		624
Other loans		3		—		—		—		3		73
Total covered loans		8,061		323		762		—		9,146		17,700
Total acquired loans	$	72,289	$	2,330	$	1,721	$	145	$	76,485	$	390,411

(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.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

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 loan type at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development    and other land	$	203	$	12	$	889	$	1,104	$	—	$	23,936	$	25,040
Secured by 1-4 family residential    properties		1,679		333		934		2,946		112		69,631		72,689
Secured by nonfarm, nonresidential    properties		225		32		857		1,114		338		109,154		110,606
Other real estate secured		112		—		1,458		1,570		—		19,333		20,903
Commercial and industrial loans		832		33		1		866		203		38,450		39,519
Consumer loans		48		—		5		53		—		3,825		3,878
Other loans		—		—		—		—		—		19,190		19,190
Total noncovered loans		3,099		410		4,144		7,653		653		283,519		291,825
Covered loans:
Loans secured by real estate:
Construction, land development    and other land		—		—		—		—		—		—		—
Secured by 1-4 family residential    properties		55		81		208		344		—		3,568		3,912
Secured by nonfarm, nonresidential    properties		—		—		—		—		—		—		—
Other real estate secured		—		—		—		—		—		—		—
Commercial and industrial loans		—		—		—		—		—		—		—
Other loans		—		—		—		—		—		—		—
Total covered loans		55		81		208		344		—		3,568		3,912
Total acquired loans	$	3,154	$	491	$	4,352	$	7,997	$	653	$	287,087	$	295,737

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

	December 31, 2015
	Past Due
	30-59 Days		60-89 Days		90 Days or More (1)		Total		Nonaccrual (2)		Current Loans		Total Acquired Loans
Noncovered loans:
Loans secured by real estate:
Construction, land development and    other land	$	24	$	114	$	13,021	$	13,159	$	—	$	28,464	$	41,623
Secured by 1-4 family residential    properties		1,544		636		1,220		3,400		387		83,163		86,950
Secured by nonfarm, nonresidential    properties		192		195		5,913		6,300		144		129,182		135,626
Other real estate secured		9		—		737		746		—		23,114		23,860
Commercial and industrial loans		82		4		184		270		429		54,376		55,075
Consumer loans		119		23		1		143		—		5,498		5,641
Other loans		85		16		—		101		—		23,835		23,936
Total noncovered loans		2,055		988		21,076		24,119		960		347,632		372,711
Covered loans:
Loans secured by real estate:
Construction, land development and    other land		9		—		119		128		—		893		1,021
Secured by 1-4 family residential    properties		428		132		978		1,538		—		8,520		10,058
Secured by nonfarm, nonresidential    properties		167		478		—		645		—		3,993		4,638
Other real estate secured		—		—		—		—		—		1,286		1,286
Commercial and industrial loans		—		—		—		—		51		573		624
Other loans		—		—		—		—		—		73		73
Total covered loans		604		610		1,097		2,311		51		15,338		17,700
Total acquired loans	$	2,659	$	1,598	$	22,173	$	26,430	$	1,011	$	362,970	$	390,411

(1) Past due 90 days or more but still accruing interest.

(2) Acquired loans not accounted for under FASB ASC Topic 310-30.

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Mortgage Banking (Tables)

9 Months Ended

Sep. 30, 2016

Mortgage Banking [Abstract]

Schedule of Activity in the Mortgage Servicing Rights

The activity in the mortgage servicing rights (MSR) is detailed in the table below for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	74,007		$	64,358
Origination of servicing assets		12,392			13,320
Change in fair value:
Due to market changes		(13,518	)		(433	)
Due to run-off		(7,367	)		(7,436	)
Balance at end of period	$	65,514		$	69,809

Schedule of Mortgage Loans Sold and Serviced for Others

The table below details the mortgage loans sold and serviced for others at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Federal National Mortgage Association	$	3,933,746	$	3,750,685
Government National Mortgage Association		2,238,400		2,111,797
Federal Home Loan Mortgage Corporation		58,236		67,817
Other		34,214		41,013
Total mortgage loans sold and serviced for others	$	6,264,596	$	5,971,312

Changes in the Reserve for Mortgage Loan Servicing Putback Expense

Changes in the reserve for mortgage loan servicing putback expense for mortgage loans delivered to FNMA in periods not covered by the November 2013 Resolution Agreement between Trustmark and FNMA and to other entities were as follows for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,685		$	1,170
Provision for putback expenses		315			210
(Losses) gains		(944	)		211
Balance at end of period	$	1,056		$	1,591

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Other Real Estate and Covered Other Real Estate (Tables)

9 Months Ended

Sep. 30, 2016

Other Real Estate And Foreclosed Assets [Abstract]

Changes Gains And Losses Net On Other Real Estate Excluding Covered Other Real Estate

For the periods presented, changes and gains, net on other real estate, excluding covered other real estate, were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	77,177		$	92,509
Additions		21,972			26,832
Disposals		(30,494	)		(33,015	)
Write-downs		(3,662	)		(2,371	)
Balance at end of period	$	64,993		$	83,955
Gain, net on the sale of other real estate included in    other real estate expense	$	5,350		$	2,116

Other Real Estate, Excluding Covered Other Real Estate, By Type of Property

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	38,345	$	47,550
1-4 family residential properties		8,037		10,732
Nonfarm, nonresidential properties		18,611		16,717
Other real estate properties		—		2,178
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

Other Real Estate, Excluding Covered Other Real Estate, By Geographic Location

At September 30, 2016 and December 31, 2015, other real estate, excluding covered other real estate, by geographic location consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Alabama	$	15,574	$	21,578
Florida		25,147		29,579
Mississippi (1)		16,659		14,312
Tennessee (2)		6,061		9,974
Texas		1,552		1,734
Total other real estate, excluding covered other real estate	$	64,993	$	77,177

(1) Mississippi includes Central and Southern Mississippi Regions

(2) Tennessee includes Memphis, Tennessee and Northern Mississippi Regions

Changes and Losses, Net On Covered Other Real Estate

For the periods presented, changes and gains (losses), net on covered other real estate were as follows ($ in thousands):

	Nine Months Ended September 30,
	2016			2015
Balance at beginning of period	$	1,651		$	6,060
Transfers from covered loans		456			266
FASB ASC 310-30 adjustment for the residual recorded    investment		(12	)		(902	)
Net transfers from covered loans		444			(636	)
Disposals		(1,679	)		(1,404	)
Transfers to noncovered other real estate		(388	)		—
Write-downs		(28	)		(1,155	)
Balance at end of period	$	—		$	2,865
Gain (loss), net on the sale of covered other real estate included in    other real estate expense	$	801		$	(54	)

Covered Other Real Estate by Type of Property

At September 30, 2016 and December 31, 2015, covered other real estate by type of property consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Construction, land development and other land properties	$	—	$	638
1-4 family residential properties		—		223
Nonfarm, nonresidential properties		—		399
Other real estate properties		—		391
Total covered other real estate	$	—	$	1,651

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Deposits (Tables)

9 Months Ended

Sep. 30, 2016

Deposits [Abstract]

Deposits Summary

At September 30, 2016 and December 31, 2015, deposits consisted of the following ($ in thousands):

	September 30, 2016		December 31, 2015
Noninterest-bearing demand	$	3,111,603	$	2,998,694
Interest-bearing demand		1,783,655		1,938,497
Savings		3,133,286		2,970,997
Time		1,657,157		1,680,042
Total	$	9,685,701	$	9,588,230

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Securities Sold Under Repurchase Agreements (Tables)

9 Months Ended

Sep. 30, 2016

Securities Sold Under Agreements To Repurchase [Abstract]

Schedule of securities sold under repurchase agreements

The following table presents the securities sold under repurchase agreements by collateral pledged at September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
U.S. Government agency obligations
Issued by U.S. Government sponsored agencies	$	—	$	22,516
Mortgage-backed securities
Other residential mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		122,865		102,604
Commercial mortgage-backed securities
Issued or guaranteed by FNMA, FHLMC or GNMA		41,067		—
Total securities sold under repurchase agreements	$	163,932	$	125,120

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Defined Benefit and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2016

Trustmark Capital Accumulation Plan [Member]

Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost

The following table presents information regarding the net periodic benefit cost for the Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Service cost	$	106		$	127		$	322		$	387
Interest cost		847			867			2,507			2,593
Expected return on plan assets		(426	)		(1,297	)		(2,470	)		(3,890	)
Recognized net loss due to lump sum settlements		463			603			3,134			1,499
Recognized net actuarial loss		714			969			2,035			2,907
Net periodic benefit cost	$	1,704		$	1,269		$	5,528		$	3,496

Supplemental Retirement Plan [Member]

Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]

Net Periodic Benefit Cost

The following table presents information regarding the 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,
	2016		2015		2016		2015
Service cost	$	73	$	107	$	221	$	323
Interest cost		542		520		1,630		1,563
Amortization of prior service cost		63		63		188		188
Recognized net actuarial loss		214		246		649		745
Net periodic benefit cost	$	892	$	936	$	2,688	$	2,819

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Stock and Incentive Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Plan Activity

The following table summarizes the Stock Plan activity for the periods presented:

	Three Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		239,006			327,197
Granted		—			2,000
Released from restriction		(1,587	)		(3,379	)
Forfeited		(283	)		(917	)
Nonvested shares, end of period		237,136			324,901

	Nine Months Ended September 30, 2016
	Performance Awards			Time-Vested Awards
Nonvested shares, beginning of period		212,309			306,657
Granted		99,116			139,291
Released from restriction		(40,888	)		(105,717	)
Forfeited		(33,401	)		(15,330	)
Nonvested shares, end of period		237,136			324,901

Compensation Expense for Awards Under Stock Plan

The following table presents information regarding compensation expense for awards under the Stock Plan for the periods presented ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2016		2015		2016		2015
Performance awards	$	382	$	319	$	789	$	883
Time-vested awards		559		638		1,952		1,855
Total compensation expense	$	941	$	957	$	2,741	$	2,738

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Earnings Per Share (EPS) (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [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,
	2016		2015		2016		2015
Basic shares		67,625		67,557		67,618		67,547
Dilutive shares		168		150		153		130
Diluted shares		67,793		67,707		67,771		67,677

Weighted-Average Antidilutive Stock Award Excluded from Determining Diluted EPS

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,
	2016		2015		2016		2015
Weighted-average antidilutive stock awards		—		1		2		1

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Statements of Cash Flows (Tables)

9 Months Ended

Sep. 30, 2016

Supplemental Cash Flow Information [Abstract]

Cash Flows Supplementary Disclosures

The following table reflects specific transaction amounts for the periods presented ($ in thousands):

	Nine Months Ended September 30,
	2016		2015
Income taxes paid	$	24,646	$	15,291
Interest expense paid on deposits and borrowings		17,132		14,639
Noncash transfers from loans to other real estate (1)		21,972		26,196

(1) Includes transfers from covered loans to covered other real estate.

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Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2016

Stockholders Equity Note [Abstract]

Table of Actual Regulatory Capital Amounts and Ratios

The following table provides Trustmark’s and TNB’s actual regulatory capital amounts and ratios under regulatory capital standards in effect at September 30, 2016 and December 31, 2015 ($ in thousands):

	Actual
	Regulatory Capital					Minimum			To Be Well
	Amount		Ratio			Requirement			Capitalized
At September 30, 2016:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,194,729		12.35	%		5.125	%	n/a
Trustmark National Bank		1,235,923		12.78	%		5.125	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,254,453		12.97	%		6.625	%	n/a
Trustmark National Bank		1,235,923		12.78	%		6.625	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,336,704		13.82	%		8.625	%	n/a
Trustmark National Bank		1,318,174		13.63	%		8.625	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,254,453		9.92	%		4.00	%	n/a
Trustmark National Bank		1,235,923		9.79	%		4.00	%		5.00	%
At December 31, 2015:
Common Equity Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,161,598		12.57	%		4.50	%	n/a
Trustmark National Bank		1,201,113		13.00	%		4.50	%		6.50	%
Tier 1 Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,220,535		13.21	%		6.00	%	n/a
Trustmark National Bank		1,201,113		13.00	%		6.00	%		8.00	%
Total Capital (to Risk Weighted Assets)
Trustmark Corporation	$	1,300,146		14.07	%		8.00	%	n/a
Trustmark National Bank		1,280,724		13.86	%		8.00	%		10.00	%
Tier 1 Leverage (to Average Assets)
Trustmark Corporation	$	1,220,535		10.03	%		4.00	%	n/a
Trustmark National Bank		1,201,113		9.89	%		4.00	%		5.00	%

Components of Accumulated Other Comprehensive Income (Loss) and the Related Tax Effects

The following table presents the components of accumulated other comprehensive loss and the related tax effects allocated to each component for the three and nine months ended September 30, 2016 and 2015 ($ in thousands).  Reclassification adjustments related to securities available for sale are included in security losses, net in the accompanying consolidated statements of income.  The amortization of prior service cost, recognized net loss due to lump sum settlements and change in net actuarial loss on pension and other postretirement benefit plans are included in the computation of net periodic benefit cost (see Note 9 – Defined Benefit and Other Postretirement Benefits for additional details).  Reclassification adjustments related to pension and other postretirement benefit plans are included in salaries and employee benefits in the accompanying consolidated statements of income.  Reclassification adjustments related to the cash flow hedge derivative are included in other interest expense in the accompanying consolidated statements of income.

	Three Months Ended September 30, 2016									Three Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding (losses) gains arising during    the period	$	(12,657	)	$	4,841		$	(7,816	)	$	17,872		$	(6,837	)	$	11,035
Reclassification adjustment for net losses realized    in net income		—			—			—			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		2,677			(1,024	)		1,653			1,678			(642	)		1,036
Total securities available for sale    and transferred securities		(9,980	)		3,817			(6,163	)		19,550			(7,479	)		12,071
Pension and other postretirement benefit plans:
Net change in prior service costs		63			(24	)		39			63			(24	)		39
Recognized net loss due to lump sum settlements		463			(177	)		286			603			(230	)		373
Change in net actuarial loss		928			(355	)		573			1,216			(465	)		751
Reclassification related to net losses realized    in net income		1,454			(556	)		898			1,882			(719	)		1,163
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		417			(160	)		257			(1,216	)		465			(751	)
Reclassification adjustment for loss realized    in net income		157			(60	)		97			211			(81	)		130
Total cash flow hedge derivatives		574			(220	)		354			(1,005	)		384			(621	)
Total other comprehensive (loss) income	$	(7,952	)	$	3,041		$	(4,911	)	$	20,427		$	(7,814	)	$	12,613

Changes in Balances of Component of Accumulated Other Comprehensive Loss

	Nine Months Ended September 30, 2016									Nine Months Ended September 30, 2015
	Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount			Before Tax Amount			Tax (Expense) Benefit			Net of Tax Amount
Securities available for sale and transferred securities:
Unrealized holding gains arising during    the period	$	32,057		$	(12,261	)	$	19,796		$	13,718		$	(5,248	)	$	8,470
Reclassification adjustment for net losses realized    in net income		310			(119	)		191			—			—			—
Change in net unrealized holding loss on    securities transferred to held to maturity		8,374			(3,203	)		5,171			4,747			(1,816	)		2,931
Total securities available for sale    and transferred securities		40,741			(15,583	)		25,158			18,465			(7,064	)		11,401
Pension and other postretirement benefit plans:
Net change in prior service costs		188			(72	)		116			188			(72	)		116
Recognized net loss due to lump sum settlements		3,134			(1,199	)		1,935			1,499			(573	)		926
Change in net actuarial loss		2,684			(1,026	)		1,658			3,653			(1,397	)		2,256
Reclassification related to net losses realized    in net income		6,006			(2,297	)		3,709			5,340			(2,042	)		3,298
Cash flow hedge derivatives:
Change in accumulated loss on effective cash flow    hedge derivatives		(1,360	)		520			(840	)		(1,919	)		734			(1,185	)
Reclassification adjustment for loss realized    in net income		473			(181	)		292			632			(242	)		390
Total cash flow hedge derivatives		(887	)		339			(548	)		(1,287	)		492			(795	)
Total other comprehensive income	$	45,860		$	(17,541	)	$	28,319		$	22,518		$	(8,614	)	$	13,904

The following table presents the changes in the balances of each component of accumulated other comprehensive loss for the periods presented ($ in thousands).  All amounts are presented net of tax.

	Securities Availablefor Sale and Transferred Securities			Defined Benefit Pension Items			Cash Flow Hedge Derivatives			Total
Balance at January 1, 2016	$	(17,394	)	$	(27,840	)	$	(160	)	$	(45,394	)
Other comprehensive income (loss) before reclassification		24,967			—			(840	)		24,127
Amounts reclassified from accumulated other    comprehensive loss		191			3,709			292			4,192
Net other comprehensive income (loss)		25,158			3,709			(548	)		28,319
Balance at September 30, 2016	$	7,764		$	(24,131	)	$	(708	)	$	(17,075	)
Balance at January 1, 2015	$	(11,003	)	$	(31,617	)	$	136		$	(42,484	)
Other comprehensive (loss) income before reclassification		11,401			3,298			(1,185	)		13,514
Amounts reclassified from accumulated other    comprehensive loss		—			—			390			390
Net other comprehensive income (loss)		11,401			3,298			(795	)		13,904
Balance at September 30, 2015	$	398		$	(28,319	)	$	(659	)	$	(28,580	)

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Fair Value (Tables)

9 Months Ended

Sep. 30, 2016

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value Recurring Basis

The following tables summarize financial assets and financial liabilities measured at fair value on a recurring basis as of September 30, 2016 and December 31, 2015, 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, 2016 and the year ended December 31, 2015.

	September 30, 2016
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	58,517	$	—		$	58,517	$	—
Obligations of states and political subdivisions		124,641		—			124,641		—
Mortgage-backed securities		2,227,789		—			2,227,789		—
Securities available for sale		2,410,947		—			2,410,947		—
Loans held for sale		242,097		—			242,097		—
Mortgage servicing rights		65,514		—			—		65,514
Other assets - derivatives		7,901		(25	)		5,179		2,747
Other liabilities - derivatives		8,583		808			7,775		—

	December 31, 2015
	Total		Level 1			Level 2		Level 3
U.S. Government agency obligations	$	68,416	$	—		$	68,416	$	—
Obligations of states and political subdivisions		138,609		—			138,609		—
Mortgage-backed securities		2,113,440		—			2,113,440		—
Asset-backed securities and structured financial products		24,957		—			24,957		—
Securities available for sale		2,345,422		—			2,345,422		—
Loans held for sale		160,189		—			160,189		—
Mortgage servicing rights		74,007		—			—		74,007
Other assets - derivatives		3,611		(149	)		2,647		1,113
Other liabilities - derivatives		3,929		1,220			2,709		—

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 nine months ended September 30, 2016 and 2015 are summarized as follows ($ in thousands):

	MSR			Other Assets - Derivatives
Balance, January 1, 2016	$	74,007		$	1,113
Total net (loss) gain included in Mortgage banking, net (1)		(20,885	)		9,486
Additions		12,392			—
Sales		—			(7,852	)
Balance, September 30, 2016	$	65,514		$	2,747
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, 2016	$	(13,519	)	$	904
Balance, January 1, 2015	$	64,358		$	1,299
Total net (loss) gain included in Mortgage banking, net (1)		(7,869	)		6,193
Additions		13,320			—
Sales		—			(4,786	)
Balance, September 30, 2015	$	69,809		$	2,706
The amount of total losses for the period included in    earnings that are attributable to the change in unrealized    gains or losses still held at September 30, 2015	$	(433	)	$	(169	)

(1) Total net (loss) gain included in Mortgage banking, net relating to the MSR includes changes in fair value due to market changes and due to run-off.

Carrying Amounts and Estimated Fair Values of Financial Instruments

The carrying amounts and estimated fair values of financial instruments at September 30, 2016 and December 31, 2015, are as follows ($ in thousands):

	September 30, 2016				December 31, 2015
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Financial Assets:
Level 2 Inputs:
Cash and short-term investments	$	384,445	$	384,445	$	278,001	$	278,001
Securities held to maturity		1,143,234		1,173,101		1,187,818		1,195,367
Level 3 Inputs:
Net LHFI		7,428,333		7,493,082		7,023,766		7,136,105
Net acquired loans		284,357		284,357		378,419		378,419
FDIC indemnification asset		—		—		738		738
Financial Liabilities:
Level 2 Inputs:
Deposits		9,685,701		9,689,282		9,588,230		9,592,531
Short-term liabilities		927,710		927,710		853,659		853,659
Long-term FHLB advances		751,075		751,077		501,155		501,160
Subordinated notes		49,993		50,484		49,969		51,405
Junior subordinated debt securities		61,856		40,825		61,856		49,021

Fair Value and the Contractual Principal Outstanding of the LHFS

The following table provides information about the fair value and the contractual principal outstanding of the LHFS accounted for under the fair value option as of September 30, 2016 and December 31, 2015 ($ in thousands):

	September 30, 2016		December 31, 2015
Fair value of LHFS	$	204,839	$	124,165
LHFS contractual principal outstanding		198,288		121,608
Fair value less unpaid principal	$	6,551	$	2,557

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2016

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Fair Value of Derivative Instruments

The following tables disclose the fair value of derivative instruments in Trustmark’s balance sheets as of September 30, 2016 and December 31, 2015 as well as the effect of these derivative instruments on Trustmark’s results of operations for the periods presented ($ in thousands):

	September 30, 2016			December 31, 2015
Derivatives in hedging relationships
Interest rate contracts:
Interest rate swaps included in other assets	$	(1,147	)	$	(259	)
Derivatives not designated as hedging instruments
Interest rate contracts:
Futures contracts included in other assets	$	(199	)	$	(207	)
Exchange traded purchased options included in other assets		174			58
OTC written options (rate locks) included in other assets		2,747			1,113
Interest rate swaps included in other assets		6,298			2,888
Credit risk participation agreements included in other assets		28			18
Forward contracts included in other liabilities		1,170			(262	)
Exchange traded written options included in other liabilities		808			1,220
Interest rate swaps included in other liabilities		6,570			2,954
Credit risk participation agreements included in other liabilities		35			17

Effects of Derivative Instruments on Statements of Operations

	Three Months Ended September 30,						Nine Months Ended September 30,
	2016			2015			2016			2015
Derivatives in hedging relationships
Amount of loss reclassified from accumulated other    comprehensive loss and recognized in other interest expense	$	(157	)	$	(211	)	$	(473	)	$	(632	)
Derivatives not designated as hedging instruments
Amount of (loss) gain recognized in mortgage banking, net	$	(688	)	$	1,265		$	11,042		$	4,221
Amount of gain (loss) recognized in bank card and other fees		1			(128	)		(206	)		(94	)

Schedule of Amount Included in Other Comprehensive Income for Derivative Instruments Designated as Hedges of Cash Flows

The following table discloses the amount included in other comprehensive income (loss), net of tax, for derivative instruments designated as cash flow hedges for the periods presented ($ in thousands):

	Three Months Ended September 30,					Nine Months Ended September 30,
	2016		2015			2016			2015
Derivatives in cash flow hedging relationship
Amount of gain (loss) recognized in other comprehensive    income (loss), net of tax	$	257	$	(751	)	$	(840	)	$	(1,185	)

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, 2016 and December 31, 2015 is presented in the following tables ($ in thousands):

Offsetting of Derivative Assets
As of September 30, 2016
							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	$	5,151	$	—	$	5,151	$	—	$	—	$	5,151

Offsetting of Derivative Liabilities
As of September 30, 2016
							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	$	6,570	$	—	$	6,570	$	—	$	(4,932	)	$	1,638

Offsetting of Derivative Assets
As of December 31, 2015
							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	$	2,629	$	—	$	2,629	$	—	$	—	$	2,629

Offsetting of Derivative Liabilities
As of December 31, 2015
							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	$	2,954	$	—	$	2,954	$	—	$	(1,195	)	$	1,759

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Segment Information (Tables)

9 Months Ended

Sep. 30, 2016

Segment Reporting [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,
	2016		2015		2016		2015
General Banking
Net interest income	$	97,395	$	97,408	$	287,950	$	291,483
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		27,207		28,320		81,230		82,477
Noninterest expense		84,358		90,043		267,063		262,403
Income before income taxes		35,269		31,915		90,387		103,797
Income taxes		6,844		6,207		18,168		22,588
General banking net income	$	28,425	$	25,708	$	72,219	$	81,209
Selected Financial Information
Average assets	$	12,916,011	$	12,231,450	$	12,788,736	$	12,123,213
Depreciation and amortization	$	9,274	$	9,209	$	26,483	$	27,256
Wealth Management
Net interest income	$	119	$	91	$	571	$	194
Noninterest income		7,434		7,748		22,681		23,477
Noninterest expense		6,216		6,195		18,200		19,373
Income before income taxes		1,337		1,644		5,052		4,298
Income taxes		512		629		1,933		1,644
Wealth management net income	$	825	$	1,015	$	3,119	$	2,654
Selected Financial Information
Average assets	$	6,039	$	4,181	$	1,842	$	3,020
Depreciation and amortization	$	44	$	44	$	131	$	139
Insurance
Net interest income	$	50	$	107	$	160	$	270
Noninterest income		10,075		9,905		28,308		27,925
Noninterest expense		7,334		7,322		21,768		21,266
Income before income taxes		2,791		2,690		6,700		6,929
Income taxes		1,059		983		2,550		2,612
Insurance net income	$	1,732	$	1,707	$	4,150	$	4,317
Selected Financial Information
Average assets	$	78,167	$	78,146	$	63,652	$	58,570
Depreciation and amortization	$	186	$	213	$	569	$	600
Consolidated
Net interest income	$	97,564	$	97,606	$	288,681	$	291,947
Provision for loan losses, net		4,975		3,770		11,730		7,760
Noninterest income		44,716		45,973		132,219		133,879
Noninterest expense		97,908		103,560		307,031		303,042
Income before income taxes		39,397		36,249		102,139		115,024
Income taxes		8,415		7,819		22,651		26,844
Consolidated net income	$	30,982	$	28,430	$	79,488	$	88,180
Selected Financial Information
Average assets	$	13,000,217	$	12,313,777	$	12,854,230	$	12,184,803
Depreciation and amortization	$	9,504	$	9,466	$	27,183	$	27,995

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Business, Basis of Financial Statement Presentation and Principles of Consolidation (Details)	Sep. 30, 2016 Office
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of offices	194

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Securities Available for Sale and Held to Maturity - Amortized Cost and Estimated Fair Value of Available for Sale and Held to Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	$ 2,372,720	$ 2,339,562
Securities Available for Sale, Gross Unrealized Gains	40,078	20,164
Securities Available for Sale, Gross Unrealized (Losses)	(1,851)	(14,304)
Securities Available for Sale, Estimated Fair Value	2,410,947	2,345,422
Securities Held to Maturity, Amortized Cost	1,143,234	1,187,818
Securities Held to Maturity, Gross Unrealized Gains	30,039	13,504
Securities Held to Maturity, Gross Unrealized (Losses)	(172)	(5,955)
Securities Held to Maturity, Estimated Fair Value	1,173,101	1,195,367
U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	58,259	68,314
Securities Available for Sale, Gross Unrealized Gains	482	555
Securities Available for Sale, Gross Unrealized (Losses)	(507)	(734)
Securities Available for Sale, Estimated Fair Value	58,234	68,135
Securities Held to Maturity, Amortized Cost	0	0
Securities Held to Maturity, Gross Unrealized Gains	0	0
Securities Held to Maturity, Gross Unrealized (Losses)	0	0
Securities Held to Maturity, Estimated Fair Value	0	0
U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	257	258
Securities Available for Sale, Gross Unrealized Gains	26	23
Securities Available for Sale, Gross Unrealized (Losses)	0	0
Securities Available for Sale, Estimated Fair Value	283	281
Securities Held to Maturity, Amortized Cost	3,636	101,782
Securities Held to Maturity, Gross Unrealized Gains	337	3,282
Securities Held to Maturity, Gross Unrealized (Losses)	0	0
Securities Held to Maturity, Estimated Fair Value	3,973	105,064
Obligations of States and Political Subdivisions [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	121,485	134,719
Securities Available for Sale, Gross Unrealized Gains	3,167	3,922
Securities Available for Sale, Gross Unrealized (Losses)	(11)	(32)
Securities Available for Sale, Estimated Fair Value	124,641	138,609
Securities Held to Maturity, Amortized Cost	52,937	55,892
Securities Held to Maturity, Gross Unrealized Gains	2,615	2,918
Securities Held to Maturity, Gross Unrealized (Losses)	(4)	0
Securities Held to Maturity, Estimated Fair Value	55,548	58,810
Residential Mortgage Pass-Through Securities Guaranteed by GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	36,130	25,602
Securities Available for Sale, Gross Unrealized Gains	712	399
Securities Available for Sale, Gross Unrealized (Losses)	(54)	(189)
Securities Available for Sale, Estimated Fair Value	36,788	25,812
Securities Held to Maturity, Amortized Cost	16,183	17,363
Securities Held to Maturity, Gross Unrealized Gains	666	342
Securities Held to Maturity, Gross Unrealized (Losses)	0	(49)
Securities Held to Maturity, Estimated Fair Value	16,849	17,656
Residential Mortgage Pass-Through Securities Issued by FNMA and FHLMC [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	554,916	222,899
Securities Available for Sale, Gross Unrealized Gains	7,239	2,956
Securities Available for Sale, Gross Unrealized (Losses)	(166)	(313)
Securities Available for Sale, Estimated Fair Value	561,989	225,542
Securities Held to Maturity, Amortized Cost	39,989	10,368
Securities Held to Maturity, Gross Unrealized Gains	810	311
Securities Held to Maturity, Gross Unrealized (Losses)	0	0
Securities Held to Maturity, Estimated Fair Value	40,799	10,679
Other Residential Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	1,353,984	1,584,338
Securities Available for Sale, Gross Unrealized Gains	21,507	9,541
Securities Available for Sale, Gross Unrealized (Losses)	(1,092)	(11,019)
Securities Available for Sale, Estimated Fair Value	1,374,399	1,582,860
Securities Held to Maturity, Amortized Cost	831,662	820,012
Securities Held to Maturity, Gross Unrealized Gains	18,690	4,951
Securities Held to Maturity, Gross Unrealized (Losses)	(60)	(4,742)
Securities Held to Maturity, Estimated Fair Value	850,292	820,221
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost	247,689	278,429
Securities Available for Sale, Gross Unrealized Gains	6,945	2,689
Securities Available for Sale, Gross Unrealized (Losses)	(21)	(1,892)
Securities Available for Sale, Estimated Fair Value	254,613	279,226
Securities Held to Maturity, Amortized Cost	198,827	182,401
Securities Held to Maturity, Gross Unrealized Gains	6,921	1,700
Securities Held to Maturity, Gross Unrealized (Losses)	(108)	(1,164)
Securities Held to Maturity, Estimated Fair Value	$ 205,640	182,937
Asset-Backed Securities and Structured Financial Products [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Securities Available for Sale, Amortized Cost		25,003
Securities Available for Sale, Gross Unrealized Gains		79
Securities Available for Sale, Gross Unrealized (Losses)		(125)
Securities Available for Sale, Estimated Fair Value		24,957
Securities Held to Maturity, Amortized Cost		0
Securities Held to Maturity, Gross Unrealized Gains		0
Securities Held to Maturity, Gross Unrealized (Losses)		0
Securities Held to Maturity, Estimated Fair Value		$ 0

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Securities Available for Sale and Held to Maturity - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Dec. 31, 2013
Investments Debt And Equity Securities [Abstract]
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 losses on AFS Securities, net of tax at date of transfer						$ 28,800,000
Net unamortized, unrealized loss on transfer of securities	$ 25,700,000		$ 25,700,000
Net unamortized, unrealized loss on transfer of securities, net of tax	15,800,000		15,800,000
Other-than-temporary impairments	0	$ 0	0	$ 0
Pledged to collateralize public deposits and securities sold under repurchase agreements and for other purposes as permitted by law	1,826,000,000		1,826,000,000		$ 2,157,000,000
Pledged securities providing additional contingency funding	$ 0		$ 0		$ 0

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Securities Available for Sale and Held to Maturity - Securities with Gross Unrealized Losses, Segregated by Length of Impairment (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Dec. 31, 2015
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	$ 210,074	$ 210,074	$ 1,506,669
Estimated Fair Value, 12 Months or More	135,879	135,879	284,538
Estimated Fair Value, Total	345,953	345,953	1,791,207
Gross Unrealized (Losses), Less than 12 Months		(490)	(12,487)
Gross Unrealized (Losses), 12 Months or More		(1,533)	(7,772)
Gross Unrealized (Losses), Total		(2,023)	(20,259)
U.S. Government Agency Obligations Issued by U.S. Government Agencies [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	10,548	10,548	18,924
Estimated Fair Value, 12 Months or More	30,728	30,728	30,591
Estimated Fair Value, Total	41,276	41,276	49,515
Gross Unrealized (Losses), Less than 12 Months		(86)	(81)
Gross Unrealized (Losses), 12 Months or More		(421)	(653)
Gross Unrealized (Losses), Total		(507)	(734)
Obligations of States and Political Subdivisions [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	7,495	7,495	4,289
Estimated Fair Value, 12 Months or More	969	969	2,842
Estimated Fair Value, Total	8,464	8,464	7,131
Gross Unrealized (Losses), Less than 12 Months		(13)	(12)
Gross Unrealized (Losses), 12 Months or More		(2)	(20)
Gross Unrealized (Losses), Total		(15)	(32)
Residential Mortgage Pass-Through Securities Guaranteed by GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	9,072	9,072	20,300
Estimated Fair Value, 12 Months or More	249	249	1,863
Estimated Fair Value, Total	9,321	9,321	22,163
Gross Unrealized (Losses), Less than 12 Months		(50)	(222)
Gross Unrealized (Losses), 12 Months or More		(4)	(16)
Gross Unrealized (Losses), Total		(54)	(238)
Residential Mortgage Pass-Through Securities Issued by FNMA and FHLMC [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	100,191	100,191	82,177
Estimated Fair Value, 12 Months or More	0	0	0
Estimated Fair Value, Total	100,191	100,191	82,177
Gross Unrealized (Losses), Less than 12 Months	(166)		(313)
Gross Unrealized (Losses), 12 Months or More	0		0
Gross Unrealized (Losses), Total	(166)		(313)
Other Residential Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	72,256	72,256	1,135,533
Estimated Fair Value, 12 Months or More	98,118	98,118	238,152
Estimated Fair Value, Total	170,374	170,374	1,373,685
Gross Unrealized (Losses), Less than 12 Months		(154)	(8,832)
Gross Unrealized (Losses), 12 Months or More		(998)	(6,929)
Gross Unrealized (Losses), Total		(1,152)	(15,761)
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months	10,512	10,512	238,668
Estimated Fair Value, 12 Months or More	5,815	5,815	11,090
Estimated Fair Value, Total	$ 16,327	16,327	249,758
Gross Unrealized (Losses), Less than 12 Months		(21)	(2,902)
Gross Unrealized (Losses), 12 Months or More		(108)	(154)
Gross Unrealized (Losses), Total		$ (129)	(3,056)
Asset-Backed Securities and Structured Financial Products [Member]
Schedule of Available For Sale and Held to Maturity Securities [Line Items]
Estimated Fair Value, Less than 12 Months			6,778
Estimated Fair Value, 12 Months or More			0
Estimated Fair Value, Total			6,778
Gross Unrealized (Losses), Less than 12 Months			(125)
Gross Unrealized (Losses), 12 Months or More			0
Gross Unrealized (Losses), Total			$ (125)

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Securities Available for Sale and Held to Maturity - Gains and Losses as a Result of Calls and Disposition of Securities (Details) - Available for Sale [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Gains (losses) on Investments [Abstract]
Proceeds from calls and sales of securities	$ 0	$ 0	$ 24,693	$ 0
Gross realized gains	0	0	32	0
Gross realized (losses)	$ 0	$ 0	$ (342)	$ 0

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Securities Available for Sale and Held to Maturity - Contractual Maturities of Available for Sale and Held to Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities Available for Sale, Amortized Cost [Abstract]
Due in one year or less	$ 32,173
Due after one year through five years	99,840
Due after five years through ten years	8,263
Due after ten years	39,725
Total amortized cost, before mortgage-backed securities	180,001
Mortgage-backed securities	2,192,719
Total	2,372,720
Securities Available for Sale, Estimated Fair Value [Abstract]
Due in one year or less	32,377
Due after one year through five years	103,180
Due after five years through ten years	8,332
Due after ten years	39,269
Total fair value, before mortgage-backed securities	183,158
Mortgage-backed securities	2,227,789
Total	2,410,947	$ 2,345,422
Securities Held to Maturity, Amortized Cost [Abstract]
Due in one year or less	5,845
Due after one year through five years	27,025
Due after five years through ten years	23,703
Due after ten years	0
Total amortized cost, before mortgage-backed securities	56,573
Mortgage-backed securities	1,086,661
Securities Held to Maturity, Amortized Cost	1,143,234	1,187,818
Securities Held to Maturity, Estimated Fair Value [Abstract]
Due in one year or less	5,845
Due after one year through five years	28,099
Due after five years through ten years	25,577
Due after ten years	0
Total fair value, before mortgage-backed securities	59,521
Mortgage-backed securities	1,113,580
Total	$ 1,173,101	$ 1,195,367

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Loan Portfolio Held for Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Loan Portfolio [Abstract]
Total LHFI	$ 7,499,204	$ 7,091,385
Less allowance for loan losses, LHFI	70,871	67,619
Net LHFI	7,428,333	7,023,766
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Loan Portfolio [Abstract]
Total LHFI	766,685	824,723
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Loan Portfolio [Abstract]
Total LHFI	1,592,453	1,649,501
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Loan Portfolio [Abstract]
Total LHFI	317,680	211,228
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Loan Portfolio [Abstract]
Total LHFI	1,916,153	1,736,476
Commercial and Industrial Loans [Member]
Loan Portfolio [Abstract]
Total LHFI	1,421,382	1,343,211
Consumer Loans [Member]
Loan Portfolio [Abstract]
Total LHFI	170,073	169,135
State and Other Political Subdivision Loans [Member]
Loan Portfolio [Abstract]
Total LHFI	875,973	734,615
Other Loans [Member]
Loan Portfolio [Abstract]
Total LHFI	$ 438,805	$ 422,496

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Additional Information (Details 1)	9 Months Ended
	Sep. 30, 2016 USD ($) Region	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Financing Receivable Impaired [Line Items]
Maximum concentration of loan as a percentage of total LHFI	10.00%
Key market regions | Region	5
Carrying amounts of nonaccrual LHFI considered for impairment analysis	$ 54,400,000		$ 55,300,000
Minimum loan amount for loan to be individually assessed for impairment	500,000
Nonaccrual	54,410,000		55,312,000
Nonaccrual financing receivable, specifically evaluated for impairment	28,600,000		26,500,000
Nonaccrual financing receivable, allowance for credit losses, charge-offs, specifically evaluated for impairment	5,000,000	$ 9,700,000
Nonaccrual financing receivable specifically evaluated for impairment allowance for credit losses provisions	(2,000,000)	4,500,000
Nonaccrual financing receivable, allowance for credit losses, deterioration value reserve	4,500,000		7,000,000
Nonaccrual financing receivable, not specifically evaluated for impairment	25,800,000		28,800,000
Nonaccrual financing receivable, allowance for credit losses, not specifically evaluated for impairment	2,300,000		2,000,000
Amount held by company of foreclosure or in substance repossession of consumer mortgage LHFI classified as TDRs	880,000		1,000,000
TDRs Classified as Consumer mortgage LHFI in the process of formal disclosure	0		83,000
LHFI Classified as TDRs	3,700,000	11,200,000
LHFI classified as TDRs from credits with interest only payments	1,600,000	7,500,000
Financing receivable, related allowance	31,000	1,200,000
Financing receivable, related charge-offs	1,000,000	806,000
Troubled Debt Restructurings [Member]
Financing Receivable Impaired [Line Items]
Nonaccrual	$ 3,669,000	$ 8,969,000	$ 7,400,000

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Summary of LHFI Evaluated for Impairment (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	$ 54,410	$ 55,312
LHFI, Collectively Evaluated For Impairment	7,444,794	7,036,073
Total LHFI	7,499,204	7,091,385
Commercial and Industrial Loans [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	16,525	7,622
LHFI, Collectively Evaluated For Impairment	1,404,857	1,335,589
Total LHFI	1,421,382	1,343,211
Consumer Loans [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	189	31
LHFI, Collectively Evaluated For Impairment	169,884	169,104
Total LHFI	170,073	169,135
State and Other Political Subdivision Loans [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	0	0
LHFI, Collectively Evaluated For Impairment	875,973	734,615
Total LHFI	875,973	734,615
Other Loans [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	821	512
LHFI, Collectively Evaluated For Impairment	437,984	421,984
Total LHFI	438,805	422,496
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	4,724	6,123
LHFI, Collectively Evaluated For Impairment	761,961	818,600
Total LHFI	766,685	824,723
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	20,107	23,079
LHFI, Collectively Evaluated For Impairment	1,572,346	1,626,422
Total LHFI	1,592,453	1,649,501
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	10,313	17,800
LHFI, Collectively Evaluated For Impairment	1,905,840	1,718,676
Total LHFI	1,916,153	1,736,476
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]
Loans and Leases Receivable, Other Information [Abstract]
LHFI, Individually Evaluated For Impairment	1,731	145
LHFI, Collectively Evaluated For Impairment	315,949	211,083
Total LHFI	$ 317,680	$ 211,228

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Impaired Financing Receivables (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	$ 66,123	$ 69,894
Total LHFI With No Related Allowance Recorded	17,975	12,852
Total LHFI With an Allowance Recorded	36,435	42,460
Total LHFI Carrying Amount	54,410	55,312
Related Allowance	6,834	8,988
Average Recorded Investment	54,864	67,327
Commercial and Industrial Loans [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	18,203	9,880
Total LHFI With No Related Allowance Recorded	12,055	1,137
Total LHFI With an Allowance Recorded	4,470	6,485
Total LHFI Carrying Amount	16,525	7,622
Related Allowance	2,305	3,304
Average Recorded Investment	12,073	9,863
Consumer Loans [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	193	34
Total LHFI With No Related Allowance Recorded	0	0
Total LHFI With an Allowance Recorded	189	31
Total LHFI Carrying Amount	189	31
Related Allowance	2	0
Average Recorded Investment	111	59
State and Other Political Subdivision Loans [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	0	0
Total LHFI With No Related Allowance Recorded	0	0
Total LHFI With an Allowance Recorded	0	0
Total LHFI Carrying Amount	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Other Loans [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	966	642
Total LHFI With No Related Allowance Recorded	0	0
Total LHFI With an Allowance Recorded	821	512
Total LHFI Carrying Amount	821	512
Related Allowance	154	128
Average Recorded Investment	667	570
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	8,186	11,113
Total LHFI With No Related Allowance Recorded	3,113	3,395
Total LHFI With an Allowance Recorded	1,611	2,728
Total LHFI Carrying Amount	4,724	6,123
Related Allowance	453	909
Average Recorded Investment	5,424	9,995
Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	25,160	27,678
Total LHFI With No Related Allowance Recorded	495	283
Total LHFI With an Allowance Recorded	19,612	22,796
Total LHFI Carrying Amount	20,107	23,079
Related Allowance	1,514	1,230
Average Recorded Investment	21,593	24,350
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	11,633	20,387
Total LHFI With No Related Allowance Recorded	1,312	8,037
Total LHFI With an Allowance Recorded	9,001	9,763
Total LHFI Carrying Amount	10,313	17,800
Related Allowance	2,316	3,402
Average Recorded Investment	14,058	21,758
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]
Loan and Lease Receivables, Impaired [Abstract]
Total LHFI Unpaid Principal Balance	1,782	160
Total LHFI With No Related Allowance Recorded	1,000	0
Total LHFI With an Allowance Recorded	731	145
Total LHFI Carrying Amount	1,731	145
Related Allowance	90	15
Average Recorded Investment	$ 938	$ 732

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Impact of Modifications Classified as Troubled Debt Restructurings (Details) - Troubled Debt Restructurings [Member] $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) Contract	Sep. 30, 2016 USD ($) Contract	Sep. 30, 2015 USD ($) Contract
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract		10	14
Pre-Modification Outstanding Recorded Investment		$ 756	$ 4,007
Post-Modification Outstanding Recorded Investment		$ 756	$ 4,007
Construction, Land Development and Other Land Loans [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract		1
Pre-Modification Outstanding Recorded Investment		$ 14
Post-Modification Outstanding Recorded Investment		$ 14
Secured by Nonfarm, Nonresidential Properties [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract			4
Pre-Modification Outstanding Recorded Investment			$ 3,512
Post-Modification Outstanding Recorded Investment			$ 3,512
Consumer Loans [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract		1
Pre-Modification Outstanding Recorded Investment		$ 2
Post-Modification Outstanding Recorded Investment		$ 2
Secured by 1-4 Family Residential Properties [Member]
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract	2	8	10
Pre-Modification Outstanding Recorded Investment	$ 35	$ 740	$ 495
Post-Modification Outstanding Recorded Investment	$ 35	$ 740	$ 495

XML

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Troubled Debt Restructuring Subsequently Defaulted (Details) - Troubled Debt Restructurings that Subsequently Defaulted [Member] - Secured by 1-4 Family Residential Properties [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) Contract	Sep. 30, 2015 USD ($) Contract
Troubled Debt Restructurings [Abstract]
Number of Contracts | Contract	1	4
Recorded Investment | $	$ 101	$ 243

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Troubled Debt Restructuring Related to Loans Held for Investment, Excluding Covered Loans, by Loan Type (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015
Financing Receivable Modifications [Line Items]
Nonaccrual	$ 54,410	$ 55,312
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	4,724	6,123
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	20,107	23,079
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	10,313	17,800
Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	16,525	7,622
Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	189	31
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	1,731	145
Troubled Debt Restructurings [Member]
Financing Receivable Modifications [Line Items]
Accruing			$ 2,204
Nonaccrual	3,669	$ 7,400	8,969
Total	3,669		11,173
Troubled Debt Restructurings [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Accruing	0		0
Nonaccrual	556		1,006
Total	556		1,006
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Accruing			1,385
Nonaccrual	2,545		2,921
Total	2,545		4,306
Troubled Debt Restructurings [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Accruing			819
Nonaccrual	179		4,503
Total	179		5,322
Troubled Debt Restructurings [Member] | Commercial and Industrial Loans [Member]
Financing Receivable Modifications [Line Items]
Accruing	0		0
Nonaccrual	387		477
Total	387		477
Troubled Debt Restructurings [Member] | Consumer Loans [Member]
Financing Receivable Modifications [Line Items]
Nonaccrual	2
Total	$ 2
Troubled Debt Restructurings [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable Modifications [Line Items]
Accruing			0
Nonaccrual			62
Total			$ 62

XML

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Additional Information (Details 2)	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2015 USD ($)	Sep. 30, 2016 USD ($) KeyRatio LoanPool CreditRiskGrade	Dec. 31, 2015 USD ($)
Financing Receivable, Recorded Investment, Aging [Abstract]
Number of days used as baseline in evaluating collateral documentation exceptions for loan policy		90 days
Number of key quality ratios | KeyRatio		6
LHFS past due 90 days or more		$ 25,600,000	$ 21,800,000
Percentage of outstanding principal to be repurchased under GNMA optional repurchase program		100.00%
Amount of delinquent loans repurchased	$ 28,500,000
Repurchase gain included in gain on sales of loans			$ 304,000
Financing Receivable [Abstract]
Number of primary commercial loan groups | LoanPool		9
Number of individual credit risk grades | CreditRiskGrade		10
Minimum [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Loan amount used as baseline in credit quality review for loan policy		$ 1,000,000
Financing Receivable [Abstract]
Period to conduct asset review		6 months
Credit amount used as baseline in evaluating loan policy		$ 100,000
Maximum [Member]
Financing Receivable [Abstract]
Period to conduct asset review		18 months

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Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Carrying Amount of Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Financing Receivable [Abstract]
Current		$ 7,430,261	$ 7,021,750
Financing Receivable, Recorded Investment, Past Due		14,533	14,323
Nonaccrual		54,410	55,312
Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due	[1]	953	2,300
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Current		760,747	818,386
Financing Receivable, Recorded Investment, Past Due		1,214	214
Nonaccrual		4,724	6,123
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Current		1,563,025	1,616,361
Financing Receivable, Recorded Investment, Past Due		9,321	10,061
Nonaccrual		20,107	23,079
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due	[1]	717	2,058
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Current		1,905,246	1,718,151
Financing Receivable, Recorded Investment, Past Due		594	525
Nonaccrual		10,313	17,800
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due	[1]	18
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Current		315,805	211,083
Financing Receivable, Recorded Investment, Past Due		144
Nonaccrual		1,731	145
Commercial and Industrial Loans [Member]
Financing Receivable [Abstract]
Current		1,403,809	1,334,623
Financing Receivable, Recorded Investment, Past Due		1,048	966
Nonaccrual		16,525	7,622
Consumer Loans [Member]
Financing Receivable [Abstract]
Current		167,821	166,680
Financing Receivable, Recorded Investment, Past Due		2,063	2,424
Nonaccrual		189	31
Consumer Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due	[1]	218	242
State and Other Political Subdivision Loans [Member]
Financing Receivable [Abstract]
Current		875,973	734,550
Financing Receivable, Recorded Investment, Past Due			65
Other Loans [Member]
Financing Receivable [Abstract]
Current		437,835	421,916
Financing Receivable, Recorded Investment, Past Due		149	68
Nonaccrual		821	512
Commercial LHFI [Member]
Financing Receivable [Abstract]
Financing receivable commercial		5,799,239	5,336,445
Commercial LHFI [Member] | Pass [Member]
Financing Receivable [Abstract]
Financing receivable commercial		5,588,197	5,180,903
Commercial LHFI [Member] | Special Mention [Member]
Financing Receivable [Abstract]
Financing receivable commercial		28,041	24,510
Commercial LHFI [Member] | Substandard [Member]
Financing Receivable [Abstract]
Financing receivable commercial		180,289	128,883
Commercial LHFI [Member] | Doubtful [Member]
Financing Receivable [Abstract]
Financing receivable commercial		2,712	2,149
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		705,496	762,393
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		687,123	746,227
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		8,494
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		9,410	15,637
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		469	529
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		131,562	133,328
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		124,472	125,268
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		467	345
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		6,262	7,525
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		361	190
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,915,394	1,735,723
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,870,036	1,680,846
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		3,196	2,031
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		41,668	52,485
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		494	361
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		316,815	209,865
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		314,858	205,097
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,957	4,768
Commercial LHFI [Member] | Commercial and Industrial Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,421,382	1,343,211
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Pass [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,304,137	1,295,760
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Special Mention [Member]
Financing Receivable [Abstract]
Financing receivable commercial		9,094	9,473
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Substandard [Member]
Financing Receivable [Abstract]
Financing receivable commercial		107,405	37,284
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Doubtful [Member]
Financing Receivable [Abstract]
Financing receivable commercial		746	694
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		875,973	734,615
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Pass [Member]
Financing Receivable [Abstract]
Financing receivable commercial		858,168	713,616
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Special Mention [Member]
Financing Receivable [Abstract]
Financing receivable commercial		6,450	12,478
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Substandard [Member]
Financing Receivable [Abstract]
Financing receivable commercial		11,355	8,521
Commercial LHFI [Member] | Other Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		432,617	417,310
Commercial LHFI [Member] | Other Loans [Member] | Pass [Member]
Financing Receivable [Abstract]
Financing receivable commercial		429,403	414,089
Commercial LHFI [Member] | Other Loans [Member] | Special Mention [Member]
Financing Receivable [Abstract]
Financing receivable commercial		340	183
Commercial LHFI [Member] | Other Loans [Member] | Substandard [Member]
Financing Receivable [Abstract]
Financing receivable commercial		2,232	2,663
Commercial LHFI [Member] | Other Loans [Member] | Doubtful [Member]
Financing Receivable [Abstract]
Financing receivable commercial		642	375
Consumer LHFI [Member]
Financing Receivable [Abstract]
Financing receivable commercial		7,499,204	7,091,385
Current		1,671,522	1,722,055
Nonaccrual		17,314	20,692
Subtotal		1,699,965	1,754,940
Consumer LHFI [Member] | Past Due 30-89 Days [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		10,194	9,893
Consumer LHFI [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		935	2,300
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		766,685	824,723
Current		60,546	62,158
Nonaccrual		467	26
Subtotal		61,189	62,330
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		176	146
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,592,453	1,649,501
Current		1,435,347	1,485,914
Nonaccrual		16,654	20,636
Subtotal		1,460,891	1,516,173
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		8,173	7,565
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		717	2,058
Consumer LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,916,153	1,736,476
Current		759	753
Subtotal		759	753
Consumer LHFI [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable [Abstract]
Financing receivable commercial		317,680	211,228
Current		865	1,363
Subtotal		865	1,363
Consumer LHFI [Member] | Commercial and Industrial Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		1,421,382	1,343,211
Consumer LHFI [Member] | Consumer Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		170,073	169,135
Current		167,817	166,681
Nonaccrual		193	30
Subtotal		170,073	169,135
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 30-89 Days [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		1,845	2,182
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable [Abstract]
Financing Receivable, Recorded Investment, Past Due		218	242
Consumer LHFI [Member] | State and Other Political Subdivision Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		875,973	734,615
Consumer LHFI [Member] | Other Loans [Member]
Financing Receivable [Abstract]
Financing receivable commercial		438,805	422,496
Current		6,188	5,186
Subtotal		$ 6,188	$ 5,186

[1] Past due 90 days or more but still accruing interest.

XML

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Aging Analysis of Past Due Loans and Nonaccrual Loans, Excluding Covered Loans by Loan Type (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		$ 14,533	$ 14,323
Nonaccrual		54,410	55,312
Current Loans		7,430,261	7,021,750
Total LHFI		7,499,204	7,091,385
Past Due 30 to 59 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		11,137	9,743
Past Due 60 to 89 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		2,443	2,280
Past Due 90 Days or More [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	[1]	953	2,300
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		1,214	214
Nonaccrual		4,724	6,123
Current Loans		760,747	818,386
Total LHFI		766,685	824,723
Construction, Land Development and Other Land [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		1,136	214
Construction, Land Development and Other Land [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		78
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		9,321	10,061
Nonaccrual		20,107	23,079
Current Loans		1,563,025	1,616,361
Total LHFI		1,592,453	1,649,501
Secured by 1-4 Family Residential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		6,801	6,203
Secured by 1-4 Family Residential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		1,803	1,800
Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	[1]	717	2,058
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		594	525
Nonaccrual		10,313	17,800
Current Loans		1,905,246	1,718,151
Total LHFI		1,916,153	1,736,476
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		576	437
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due			88
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	[1]	18
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		144
Nonaccrual		1,731	145
Current Loans		315,805	211,083
Total LHFI		317,680	211,228
Other Real Estate Secured [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		144
Commercial and Industrial Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		1,048	966
Nonaccrual		16,525	7,622
Current Loans		1,403,809	1,334,623
Total LHFI		1,421,382	1,343,211
Commercial and Industrial Loans [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		868	921
Commercial and Industrial Loans [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		180	45
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		2,063	2,424
Nonaccrual		189	31
Current Loans		167,821	166,680
Total LHFI		170,073	169,135
Consumer Loans [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		1,465	1,835
Consumer Loans [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		380	347
Consumer Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	[1]	218	242
State and Other Political Subdivision Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due			65
Current Loans		875,973	734,550
Total LHFI		875,973	734,615
State and Other Political Subdivision Loans [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due			65
Other Loans [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		149	68
Nonaccrual		821	512
Current Loans		437,835	421,916
Total LHFI		438,805	422,496
Other Loans [Member] | Past Due 30 to 59 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		147	$ 68
Other Loans [Member] | Past Due 60 to 89 Days [Member]
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due		$ 2

[1] Past due 90 days or more but still accruing interest.

XML

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Additional Information (Details 3)	9 Months Ended
	Sep. 30, 2016 Loan Factor Scale
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Number of loan types for commercial portfolio | Loan	9
Number of risk rate factors for commercial loans | Factor	450
Minimum score for qualitative risk factor | Scale	0
Maximum score for qualitative risk factor | Scale	100
Number of loan types for consumer portfolio | Loan	5
Number of unique qualitative factors used to analyze consumer loans | Factor	4

XML

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Change in Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			$ 67,619
Provision for loan losses, LHFI	$ 4,284	$ 2,514	9,123	$ 5,332
Balance at end of period	70,871		70,871
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Total	70,871		70,871		$ 70,871
Allowance for Loan Losses, LHFI [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	71,796	71,166	67,619	69,616
Loans charged-off	(8,279)	(11,406)	(14,893)	(18,688)
Recoveries	3,070	3,333	9,022	9,347
Net charge-offs	(5,209)	(8,073)	(5,871)	(9,341)
Provision for loan losses, LHFI	4,284	2,514	9,123	5,332
Balance at end of period	70,871	65,607	70,871	65,607
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					6,834	$ 8,107
Collectively					64,037	57,500
Total	71,796	71,166	67,619	69,616	70,871	65,607
Allowance for Loan Losses, LHFI [Member] | Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			11,587	13,073
Loans charged-off			(212)	(2,236)
Recoveries			1,006	1,274
Provision for loan losses, LHFI			(3,183)	395
Balance at end of period	9,198	12,506	9,198	12,506
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					453	2,054
Collectively					8,745	10,452
Total	9,198	12,506	11,587	13,073	9,198	12,506
Allowance for Loan Losses, LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			10,678	9,677
Loans charged-off			(1,129)	(2,013)
Recoveries			680	781
Provision for loan losses, LHFI			172	1,529
Balance at end of period	10,401	9,974	10,401	9,974
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					1,514	267
Collectively					8,887	9,707
Total	10,401	9,974	10,678	9,677	10,401	9,974
Allowance for Loan Losses, LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			21,563	18,523
Loans charged-off			(1,662)	(1,282)
Recoveries			823	397
Provision for loan losses, LHFI			1,479	(1,517)
Balance at end of period	22,203	16,121	22,203	16,121
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					2,316	2,602
Collectively					19,887	13,519
Total	22,203	16,121	21,563	18,523	22,203	16,121
Allowance for Loan Losses, LHFI [Member] | Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			2,467	2,141
Loans charged-off				(24)
Recoveries			5	6
Provision for loan losses, LHFI			(213)	(382)
Balance at end of period	2,259	1,741	2,259	1,741
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					90	28
Collectively					2,169	1,713
Total	2,259	1,741	2,467	2,141	2,259	1,741
Allowance for Loan Losses, LHFI [Member] | Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			15,815	19,917
Loans charged-off			(6,408)	(7,243)
Recoveries			519	1,553
Provision for loan losses, LHFI			10,982	5,109
Balance at end of period	20,908	19,336	20,908	19,336
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					2,305	2,956
Collectively					18,603	16,380
Total	20,908	19,336	15,815	19,917	20,908	19,336
Allowance for Loan Losses, LHFI [Member] | Consumer Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			2,879	2,149
Loans charged-off			(1,398)	(1,543)
Recoveries			3,397	2,639
Provision for loan losses, LHFI			(1,851)	(1,166)
Balance at end of period	3,027	2,079	3,027	2,079
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					2
Collectively					3,025	2,079
Total	3,027	2,079	2,879	2,149	3,027	2,079
Allowance for Loan Losses, LHFI [Member] | State and Other Political Subdivision Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			809	1,314
Provision for loan losses, LHFI			68	(624)
Balance at end of period	877	690	877	690
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Collectively					877	690
Total	877	690	809	1,314	877	690
Allowance for Loan Losses, LHFI [Member] | Other Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			1,821	2,822
Loans charged-off			(4,084)	(4,347)
Recoveries			2,592	2,697
Provision for loan losses, LHFI			1,669	1,988
Balance at end of period	1,998	3,160	1,998	3,160
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Individually					154	200
Collectively					1,844	2,960
Total	$ 1,998	$ 3,160	$ 1,821	$ 2,822	$ 1,998	$ 3,160

XML

Acquired Loans - Schedule of Covered and Noncovered Acquired Loans by Type (Details) - USD ($) $ in Thousands	Sep. 30, 2016		Jun. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	$ 295,737			$ 390,411
Less allowance for loan losses, acquired loans	11,380		$ 12,480	11,992	$ 12,185	$ 12,629	$ 12,059
Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	291,825			372,711
Less allowance for loan losses, acquired loans	11,330		12,218	11,259	11,417	11,927	10,541
Net acquired loans	280,495			361,452
Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	3,912	[1]		17,700
Less allowance for loan losses, acquired loans	50	[1]	$ 262	733	$ 768	$ 702	$ 1,518
Net acquired loans	3,862	[1]		16,967
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	25,040			41,623
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	0	[1]		1,021
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	72,689			86,950
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	3,912	[1]		10,058
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	110,606			135,626
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	0	[1]		4,638
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	20,903			23,860
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	0	[1]		1,286
Commercial and Industrial Loans [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	39,519			55,075
Commercial and Industrial Loans [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	0	[1]		624
Consumer Loans [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	3,878			5,641
Consumer Loans [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	0	[1]		0
Other Loans [Member] | Noncovered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	19,190			23,936
Other Loans [Member] | Covered Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Acquired loans	$ 0	[1]		$ 73

[1] Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

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Acquired Loans - Changes in the Carrying Value of Acquired Loans (Details) - USD ($) $ in Thousands		9 Months Ended			12 Months Ended
		Sep. 30, 2016		Sep. 30, 2015	Dec. 31, 2015
Carrying value of acquired loans [Abstract]
Accretion to interest income		$ 14,351		$ 24,907
Noncovered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning		361,452
Carrying value, net, ending		280,495			$ 361,452
Covered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning		16,967
Carrying value, net, ending		3,862	[1]		16,967
Acquired Not ASC 310-30 [Member] | Noncovered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning	[2]	66,086		81,091	81,091
Transfers	[2],[3]	446
Accretion to interest income	[2]	40			479
Payments received, net	[2]	(28,861)			(15,484)
Other	[2],[4]	0			0
Less change in allowance for loan losses, acquired loans	[2]	452			0
Carrying value, net, ending	[2]	38,163			66,086
Acquired Not ASC 310-30 [Member] | Covered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning	[2]	1,571		1,604	1,604
Transfers	[2],[3]	(446)
Accretion to interest income	[2]	0			0
Payments received, net	[2]	(421)			(33)
Other	[2],[4]	0			0
Less change in allowance for loan losses, acquired loans	[2]	(454)			0
Carrying value, net, ending	[2]	250			1,571
Acquired Impaired [Member] | Noncovered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning		295,366		434,151	434,151
Transfers	[3]	9,157
Accretion to interest income		13,498			28,193
Payments received, net		(75,875)			(164,671)
Other	[4]	709			(1,589)
Less change in allowance for loan losses, acquired loans		(523)			(718)
Carrying value, net, ending		242,332			295,366
Acquired Impaired [Member] | Covered Loans [Member]
Carrying value of acquired loans [Abstract]
Carrying value, net, beginning		15,396		$ 20,504	20,504
Transfers	[3]	(9,157)
Accretion to interest income		853			2,308
Payments received, net		(4,203)			(8,592)
Other	[4]	(414)			391
Less change in allowance for loan losses, acquired loans		1,137			785
Carrying value, net, ending		$ 3,612			$ 15,396

[1] Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

[2] "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, "Loans and Debt Securities Acquired with Deteriorated Credit Quality."

[3] Covered acquired loans transferred to noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

[4] Includes miscellaneous timing adjustments as well as acquired loan terminations through foreclosure, charge-off and other terminations.

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Acquired Loans - Changes in Accretable Yield of Acquired Loans (Details) - USD ($) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Change in accretable difference on acquired loans [Abstract]
Accretable yield at beginning of period		$ (52,672)	$ (77,149)	$ (77,149)
Accretion to interest income		14,351	24,907
Disposals		4,306	8,194
Reclassification from nonaccretable difference	[1]	(7,046)	(12,215)
Accretable yield at end of period		$ (41,061)	$ (56,263)	$ (52,672)

[1] Reclassifications from nonaccretable difference are due to lower loss expectations and improvements in expected cash flows.

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Acquired Loans - Components of the Allowance for Loan Losses on Acquired Loans (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2016		Sep. 30, 2015	Sep. 30, 2016		Sep. 30, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		$ 12,480		$ 12,629	$ 11,992		$ 12,059
Provision for loan losses, acquired loans		691		1,256	2,607		2,428
Loans charged-off		(2,590)		(2,566)	(5,041)		(5,584)
Recoveries		799		866	1,822		3,282
Net (charge-offs) recoveries		(1,791)		(1,700)	(3,219)		(2,302)
Balance at end of period		11,380		12,185	11,380		12,185
Noncovered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		12,218		11,927	11,259		10,541
Transfers	[1]	215			215
Provision for loan losses, acquired loans		686		1,221	2,969		2,797
Loans charged-off		(2,590)		(2,456)	(4,959)		(5,024)
Recoveries		801		725	1,846		3,103
Net (charge-offs) recoveries		(1,789)		(1,731)	(3,113)		(1,921)
Balance at end of period		11,330		11,417	11,330		11,417
Covered Loans [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Balance at beginning of period		262		702	733		1,518
Transfers	[1]	(215)			(215)
Provision for loan losses, acquired loans		5		35	(362)		(369)
Loans charged-off				(110)	(82)		(560)
Recoveries		(2)		141	(24)		179
Net (charge-offs) recoveries		(2)		31	(106)		(381)
Balance at end of period		$ 50	[2]	$ 768	$ 50	[2]	$ 768

[1] The allowance for loan losses on covered acquired loans other than loans secured by 1-4 family residential properties transferred to the allowance for loan losses on noncovered acquired loans as a result of expiration of the related indemnification agreement with the FDIC on June 30, 2016.

[2] Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

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Acquired Loans - Additional Information (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($) CreditRiskGrade	Dec. 31, 2015 USD ($)
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities [Abstract]
Number of individual credit risk grades | CreditRiskGrade	10
Nonaccrual loans not accounted for under FASB ASC Topic 310 30 | $	$ 653	$ 1,000

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Acquired Loans - Carrying Amount of Acquired Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands		Sep. 30, 2016		Dec. 31, 2015
Acquired Loans, Aging [Abstract]
Current		$ 287,087		$ 362,970
Acquired Loans, Past Due		7,997		26,430
Nonaccrual	[1]	653		1,011
Total Acquired Loans		295,737		390,411
Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	4,352		22,173
Noncovered Loans [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		280,495		361,452
Acquired Loans, Aging [Abstract]
Current		283,519		347,632
Acquired Loans, Past Due		7,653		24,119
Nonaccrual	[1]	653		960
Total Acquired Loans		291,825		372,711
Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	4,144		21,076
Covered Loans [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		3,862	[3]	16,967
Acquired Loans, Aging [Abstract]
Current		3,568		15,338
Acquired Loans, Past Due		344		2,311
Nonaccrual	[1]	0		51
Total Acquired Loans		3,912	[3]	17,700
Covered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	208		1,097
Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		23,936		28,464
Acquired Loans, Past Due		1,104		13,159
Nonaccrual	[1]	0		0
Total Acquired Loans		25,040		41,623
Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	889		13,021
Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		0		893
Acquired Loans, Past Due		0		128
Nonaccrual	[1]	0		0
Total Acquired Loans		0	[3]	1,021
Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		119
Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		69,631		83,163
Acquired Loans, Past Due		2,946		3,400
Nonaccrual	[1]	112		387
Total Acquired Loans		72,689		86,950
Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	934		1,220
Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		3,568		8,520
Acquired Loans, Past Due		344		1,538
Nonaccrual	[1]	0		0
Total Acquired Loans		3,912	[3]	10,058
Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	208		978
Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		109,154		129,182
Acquired Loans, Past Due		1,114		6,300
Nonaccrual	[1]	338		144
Total Acquired Loans		110,606		135,626
Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	857		5,913
Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		0		3,993
Acquired Loans, Past Due		0		645
Nonaccrual	[1]	0		0
Total Acquired Loans		0	[3]	4,638
Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		0
Other Real Estate Secured [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		19,333		23,114
Acquired Loans, Past Due		1,570		746
Nonaccrual	[1]	0		0
Total Acquired Loans		20,903		23,860
Other Real Estate Secured [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	1,458		737
Other Real Estate Secured [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		0		1,286
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		0
Total Acquired Loans		0	[3]	1,286
Other Real Estate Secured [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		0
Commercial and Industrial Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		38,450		54,376
Acquired Loans, Past Due		866		270
Nonaccrual	[1]	203		429
Total Acquired Loans		39,519		55,075
Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	1		184
Commercial and Industrial Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		0		573
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		51
Total Acquired Loans		0	[3]	624
Commercial and Industrial Loans [Member] | Covered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		0
Consumer Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		3,825		5,498
Acquired Loans, Past Due		53		143
Nonaccrual	[1]	0		0
Total Acquired Loans		3,878		5,641
Consumer Loans [Member] | Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	5		1
Consumer Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Total Acquired Loans		0	[3]	0
Other Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		19,190		23,835
Acquired Loans, Past Due		0		101
Nonaccrual	[1]	0		0
Total Acquired Loans		19,190		23,936
Other Loans [Member] | Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		0
Other Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		0		73
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		0
Total Acquired Loans		0	[3]	73
Other Loans [Member] | Covered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[2]	0		0
Commercial LHFI [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		235,192		313,926
Commercial LHFI [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		174,771		224,725
Commercial LHFI [Member] | Special Mention [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		1,279		3,589
Commercial LHFI [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		55,753		77,649
Commercial LHFI [Member] | Doubtful [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		3,389		7,963
Commercial LHFI [Member] | Noncovered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		234,935		305,372
Commercial LHFI [Member] | Noncovered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		174,586		218,201
Commercial LHFI [Member] | Noncovered Loans [Member] | Special Mention [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		1,267		3,425
Commercial LHFI [Member] | Noncovered Loans [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		55,693		75,902
Commercial LHFI [Member] | Noncovered Loans [Member] | Doubtful [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		3,389		7,844
Commercial LHFI [Member] | Covered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		257		8,554
Commercial LHFI [Member] | Covered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		185		6,524
Commercial LHFI [Member] | Covered Loans [Member] | Special Mention [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		12		164
Commercial LHFI [Member] | Covered Loans [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		60		1,747
Commercial LHFI [Member] | Covered Loans [Member] | Doubtful [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				119
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		22,963		39,218
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		14,624		15,839
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		117		253
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		7,900		19,252
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		322		3,874
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				942
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				235
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				588
Commercial LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				119
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		22,244		27,663
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		17,629		22,272
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		56		27
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		4,249		5,033
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		310		331
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		257		1,510
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		185		869
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		12		107
Commercial LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		60		534
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		110,553		135,626
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		88,799		106,924
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		1,071		2,301
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		20,167		25,690
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		516		711
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				4,567
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				4,060
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Special Mention [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				35
Commercial LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				472
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		20,468		23,854
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Noncovered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		16,313		19,346
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Noncovered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		3,482		3,777
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Noncovered Loans [Member] | Doubtful [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		673		731
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				841
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Covered Loans [Member] | Pass [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				730
Commercial LHFI [Member] | Other Real Estate Secured [Member] | Covered Loans [Member] | Substandard [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				111
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		39,519		55,075
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		23,860		36,670
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Special Mention [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		23		844
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		14,230		15,526
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member] | Doubtful [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		1,406		2,035
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Covered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				624
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Covered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				560
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Covered Loans [Member] | Special Mention [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				22
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Covered Loans [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				42
Commercial LHFI [Member] | Other Loans [Member] | Noncovered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		19,188		23,936
Commercial LHFI [Member] | Other Loans [Member] | Noncovered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		13,361		17,150
Commercial LHFI [Member] | Other Loans [Member] | Noncovered Loans [Member] | Substandard [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		5,665		6,624
Commercial LHFI [Member] | Other Loans [Member] | Noncovered Loans [Member] | Doubtful [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans		162		162
Commercial LHFI [Member] | Other Loans [Member] | Covered Loans [Member] | Commercial Loan [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				70
Commercial LHFI [Member] | Other Loans [Member] | Covered Loans [Member] | Pass [Member]
Acquired Loans, Commercial Loans [Abstract]
Acquired loans				70
Consumer LHFI [Member]
Acquired Loans, Aging [Abstract]
Current		57,358		72,289
Nonaccrual	[1]	94		145
Subtotal		60,545		76,485
Total Acquired Loans		295,737		390,411
Consumer LHFI [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,970		2,330
Consumer LHFI [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,123		1,721
Consumer LHFI [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		54,047		64,228
Nonaccrual	[1]	94		145
Subtotal		56,890		67,339
Total Acquired Loans		291,825		372,711
Consumer LHFI [Member] | Noncovered Loans [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,834		2,007
Consumer LHFI [Member] | Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		915		959
Consumer LHFI [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		3,311		8,061
Subtotal		3,655		9,146
Total Acquired Loans		3,912		17,700
Consumer LHFI [Member] | Covered Loans [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		136		323
Consumer LHFI [Member] | Covered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		208		762
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		2,066		2,353
Subtotal		2,077		2,405
Total Acquired Loans		25,040		41,623
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		3		24
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		8		28
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current				70
Subtotal				79
Total Acquired Loans				1,021
Consumer LHFI [Member] | Construction, Land Development and Other Land [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due				9
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		47,666		56,371
Nonaccrual	[1]	94		145
Subtotal		50,445		59,287
Total Acquired Loans		72,689		86,950
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,783		1,841
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		902		930
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		3,311		7,472
Subtotal		3,655		8,548
Total Acquired Loans		3,912		10,058
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		136		314
Consumer LHFI [Member] | Secured by 1-4 Family Residential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		208		762
Consumer LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		53
Subtotal		53
Total Acquired Loans		110,606		135,626
Consumer LHFI [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current				71
Subtotal				71
Total Acquired Loans				4,638
Consumer LHFI [Member] | Other Real Estate Secured [Member] | Noncovered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current		435		6
Subtotal		435		6
Total Acquired Loans		20,903		23,860
Consumer LHFI [Member] | Other Real Estate Secured [Member] | Covered Loans [Member] | Loans Secured by Real Estate [Member]
Acquired Loans, Aging [Abstract]
Current				445
Subtotal				445
Total Acquired Loans				1,286
Consumer LHFI [Member] | Commercial and Industrial Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Total Acquired Loans		39,519		55,075
Consumer LHFI [Member] | Commercial and Industrial Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Total Acquired Loans				624
Consumer LHFI [Member] | Consumer Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		3,825		5,498
Subtotal		3,878		5,641
Total Acquired Loans		3,878		5,641
Consumer LHFI [Member] | Consumer Loans [Member] | Noncovered Loans [Member] | Past Due 30-89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		48		142
Consumer LHFI [Member] | Consumer Loans [Member] | Noncovered Loans [Member] | Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		5		1
Consumer LHFI [Member] | Other Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Current		2
Subtotal		2
Total Acquired Loans		$ 19,190		23,936
Consumer LHFI [Member] | Other Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Current				3
Subtotal				3
Total Acquired Loans				$ 73

[1] Acquired loans not accounted for under FASB ASC Topic 310-30.

[2] Past due 90 days or more but still accruing interest.

[3] Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

XML

Acquired Loans - Carrying Amount of Acquired Loans by Credit Quality Indicator (Parenthetical) (Details)	Sep. 30, 2016	Dec. 31, 2015
Certain Loans Acquired In Transfer Not Accounted For As Debt Securities [Abstract]
Percentage of risk of losses incurred on acquired covered loans	20.00%	20.00%

XML

Acquired Loans - Aging Analysis of Past Due and Nonaccrual Acquired Loans, by Class (Details) - USD ($) $ in Thousands		Sep. 30, 2016		Dec. 31, 2015
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		$ 7,997		$ 26,430
Nonaccrual	[1]	653		1,011
Current		287,087		362,970
Acquired Loans		295,737		390,411
Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		7,653		24,119
Nonaccrual	[1]	653		960
Current		283,519		347,632
Acquired Loans		291,825		372,711
Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		344		2,311
Nonaccrual	[1]	0		51
Current		3,568		15,338
Acquired Loans		3,912	[2]	17,700
Past Due 30 to 59 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		3,154		2,659
Past Due 30 to 59 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		3,099		2,055
Past Due 30 to 59 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		55		604
Past Due 60 to 89 Days [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		491		1,598
Past Due 60 to 89 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		410		988
Past Due 60 to 89 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		81		610
Past Due 90 Days or More [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	4,352		22,173
Past Due 90 Days or More [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	4,144		21,076
Past Due 90 Days or More [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	208		1,097
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,104		13,159
Nonaccrual	[1]	0		0
Current		23,936		28,464
Acquired Loans		25,040		41,623
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		128
Nonaccrual	[1]	0		0
Current		0		893
Acquired Loans		0	[2]	1,021
Construction, Land Development and Other Land [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		203		24
Construction, Land Development and Other Land [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		9
Construction, Land Development and Other Land [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		12		114
Construction, Land Development and Other Land [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Construction, Land Development and Other Land [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	889		13,021
Construction, Land Development and Other Land [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	0		119
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		2,946		3,400
Nonaccrual	[1]	112		387
Current		69,631		83,163
Acquired Loans		72,689		86,950
Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		344		1,538
Nonaccrual	[1]	0		0
Current		3,568		8,520
Acquired Loans		3,912	[2]	10,058
Secured by 1-4 Family Residential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,679		1,544
Secured by 1-4 Family Residential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		55		428
Secured by 1-4 Family Residential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		333		636
Secured by 1-4 Family Residential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		81		132
Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	934		1,220
Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	208		978
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,114		6,300
Nonaccrual	[1]	338		144
Current		109,154		129,182
Acquired Loans		110,606		135,626
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		645
Nonaccrual	[1]	0		0
Current		0		3,993
Acquired Loans		0	[2]	4,638
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		225		192
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		167
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		32		195
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		478
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	857		5,913
Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	0		0
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		1,570		746
Nonaccrual	[1]	0		0
Current		19,333		23,114
Acquired Loans		20,903		23,860
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		0
Current		0		1,286
Acquired Loans		0	[2]	1,286
Other Real Estate Secured [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		112		9
Other Real Estate Secured [Member] | Past Due 30 to 59 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Other Real Estate Secured [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Other Real Estate Secured [Member] | Past Due 60 to 89 Days [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Other Real Estate Secured [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	1,458		737
Other Real Estate Secured [Member] | Past Due 90 Days or More [Member] | Loans Secured by Real Estate [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	0		0
Commercial and Industrial Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		866		270
Nonaccrual	[1]	203		429
Current		38,450		54,376
Acquired Loans		39,519		55,075
Commercial and Industrial Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		51
Current		0		573
Acquired Loans		0	[2]	624
Commercial and Industrial Loans [Member] | Past Due 30 to 59 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		832		82
Commercial and Industrial Loans [Member] | Past Due 30 to 59 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Commercial and Industrial Loans [Member] | Past Due 60 to 89 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		33		4
Commercial and Industrial Loans [Member] | Past Due 60 to 89 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Commercial and Industrial Loans [Member] | Past Due 90 Days or More [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	1		184
Commercial and Industrial Loans [Member] | Past Due 90 Days or More [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	0		0
Consumer Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		53		143
Nonaccrual	[1]	0		0
Current		3,825		5,498
Acquired Loans		3,878		5,641
Consumer Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans		0	[2]	0
Consumer Loans [Member] | Past Due 30 to 59 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		48		119
Consumer Loans [Member] | Past Due 60 to 89 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		23
Consumer Loans [Member] | Past Due 90 Days or More [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	5		1
Other Loans [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		101
Nonaccrual	[1]	0		0
Current		19,190		23,835
Acquired Loans		19,190		23,936
Other Loans [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Nonaccrual	[1]	0		0
Current		0		73
Acquired Loans		0	[2]	73
Other Loans [Member] | Past Due 30 to 59 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		85
Other Loans [Member] | Past Due 30 to 59 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Other Loans [Member] | Past Due 60 to 89 Days [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		16
Other Loans [Member] | Past Due 60 to 89 Days [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due		0		0
Other Loans [Member] | Past Due 90 Days or More [Member] | Noncovered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	0		0
Other Loans [Member] | Past Due 90 Days or More [Member] | Covered Loans [Member]
Acquired Loans, Aging [Abstract]
Acquired Loans, Past Due	[3]	$ 0		$ 0

[1] Acquired loans not accounted for under FASB ASC Topic 310-30.

[2] Trustmark’s loss share agreement with the FDIC covering the acquired covered loans other than loans secured by 1-4 family residential properties expired on June 30, 2016. Trustmark’s loss share agreement with the FDIC covering the acquired covered loans secured by 1-4 family residential properties will expire in 2021. Effective July 1, 2016, all acquired covered loans excluding the acquired covered loans secured by 1-4 family residential properties were reclassified to acquired noncovered loans.

[3] Past due 90 days or more but still accruing interest.

XML

Mortgage Banking - Schedule of Activity in the Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Mortgage servicing rights [Abstract]
Balance at beginning of period	$ 74,007	$ 64,358
Origination of servicing assets	12,392	13,320
Change in fair value [Abstract]
Due to market changes	(13,518)	(433)
Due to run-off	(7,367)	(7,436)
Balance at end of period	$ 65,514	$ 69,809

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Mortgage Banking - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Mortgage servicing rights [Abstract]
Period of putback response	60 days
Mortgage loan servicing putback expenses	$ 315	$ 210
Residential mortgage loans sold	1,016,000	930,500
Gains on sales of residential mortgage loans, before tax	$ 14,500	$ 13,300

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Mortgage Banking - Schedule of Mortgage Loans Sold and Serviced for Others (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	$ 6,264,596	$ 5,971,312
Federal National Mortgage Association [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	3,933,746	3,750,685
Government National Mortgage Association [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	2,238,400	2,111,797
Federal Home Loan Mortgage Corporation [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	58,236	67,817
Other [Member]
Mortgage Loans On Real Estate [Line Items]
Total mortgage loans sold and serviced for others	$ 34,214	$ 41,013

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Mortgage Banking - Changes in the Reserve for Mortgage Loan Servicing Putback Expense (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Schedule of changes in the reserve for mortgage loan [Abstract]
Balance at beginning of period	$ 1,685	$ 1,170
Provision for putback expenses	315	210
(Losses) gains	(944)	211
Balance at end of period	$ 1,056	$ 1,591

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Other Real Estate and Covered Other Real Estate - Changes and Gains, Net on Other Real Estate, Excluding Covered Other Real Estate (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Reconciliation Of Carrying Amount Of Real Estate Investments Roll Forward
Balance at beginning of period	$ 77,177	$ 92,509
Additions	21,972	26,832
Disposals	(30,494)	(33,015)
Write-downs	(3,662)	(2,371)
Balance at end of period	64,993	83,955
Gain, net on the sale of other real estate included in other real estate expense	$ 5,350	$ 2,116

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Other Real Estate and Covered Other Real Estate - Other Real Estate, Excluding Covered Other Real Estate, By Type of Property (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	$ 64,993	$ 77,177	$ 83,955	$ 92,509
Construction, Land Development And Other Land Properties [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	38,345	47,550
1 - 4 Family Residential Properties [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	8,037	10,732
Nonfarm, Nonresidential Properties [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	$ 18,611	16,717
Other Real Estate Properties [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate		$ 2,178

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Other Real Estate and Covered Other Real Estate - Other Real Estate, Excluding Covered Other Real Estate, By Geographic Location (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate		$ 64,993	$ 77,177	$ 83,955	$ 92,509
Alabama [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate		15,574	21,578
Florida [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate		25,147	29,579
Mississippi [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	[1]	16,659	14,312
Tennessee [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate	[2]	6,061	9,974
Texas [Member]
Other real estate, excluding covered other real estate [Line Items]
Other real estate, excluding covered other real estate		$ 1,552	$ 1,734

[1] Mississippi includes Central and Southern Mississippi Regions

[2] Tennessee includes Memphis, Tennessee and Northern Mississippi Regions

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Other Real Estate and Covered Other Real Estate - Additional Information (Details) - USD ($) $ in Thousands		9 Months Ended
	Jul. 01, 2016	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Other Real Estate [Abstract]
Transfers to non covered other real estate	$ 388	$ 388
Covered other real estate		$ 0	$ 1,651	$ 2,865	$ 6,060

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Other Real Estate and Covered Other Real Estate - Changes and Losses, Net On Covered Other Real Estate (Details) - USD ($) $ in Thousands		9 Months Ended
	Jul. 01, 2016	Sep. 30, 2016	Sep. 30, 2015
Covered Other Real Estate Roll Forward
Covered other real estate, beginning of period		$ 1,651	$ 6,060
Transfers from covered loans		456	266
FASB ASC 310-30 adjustment for the residual recorded investment		(12)	(902)
Net transfers from covered loans		444	(636)
Disposals		(1,679)	(1,404)
Transfers to noncovered other real estate	$ (388)	(388)
Write-downs		(28)	(1,155)
Covered other real estate, end of period		0	2,865
Gain (loss), net on the sale of covered other real estate included in other real estate expense		$ 801	$ (54)

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Other Real Estate and Covered Other Real Estate - Covered Other Real Estate by Type of Property (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Other real estate, covered other real estate [Line Items]
Total covered other real estate	$ 0	$ 1,651	$ 2,865	$ 6,060
Construction, Land Development and Other Land [Member]
Other real estate, covered other real estate [Line Items]
Total covered other real estate	0	638
Secured by 1-4 Family Residential Properties [Member]
Other real estate, covered other real estate [Line Items]
Total covered other real estate	0	223
Loans secured by Nonfarm, Nonresidential Properties [Member]
Other real estate, covered other real estate [Line Items]
Total covered other real estate	0	399
Other Real Estate Secured [Member]
Other real estate, covered other real estate [Line Items]
Total covered other real estate	$ 0	$ 391

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Deposits - Deposits Summary (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Deposits [Abstract]
Noninterest-bearing demand	$ 3,111,603	$ 2,998,694
Interest-bearing demand	1,783,655	1,938,497
Savings	3,133,286	2,970,997
Time	1,657,157	1,680,042
Total deposits	$ 9,685,701	$ 9,588,230

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Securities Sold Under Repurchase Agreements (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreements	$ 163,932	$ 125,120
U.S. Government Agency Obligations Issued by U.S. Government Sponsored Agencies [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreements		22,516
Other Residential Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreements	122,865	$ 102,604
Commercial Mortgage-Backed Securities Issued or Guaranteed by FNMA, FHLMC or GNMA [Member]
Securities sold under repurchase agreements by collateral pledged
Total securities sold under repurchase agreements	$ 41,067

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Defined Benefit and Other Postretirement Benefits - Additional Information (Details) - Trustmark Capital Accumulation Plan [Member] - USD ($)	3 Months Ended	6 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2016	Dec. 31, 2016	Jun. 30, 2016	Sep. 30, 2016	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Years of service required to vest				3 years
Expected rate of return on plan assets			6.00%
Increase in periodic benefit costs	$ 664,000
Scenario Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected rate of return on plan assets		2.50%
Trustmark's minimum required contribution to Trustmark Capital Accumulation Plan					$ 0

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Defined Benefit and Other Postretirement Benefits - Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Trustmark Capital Accumulation Plan [Member]
Net periodic benefit cost [Abstract]
Service cost	$ 106	$ 127	$ 322	$ 387
Interest cost	847	867	2,507	2,593
Expected return on plan assets	(426)	(1,297)	(2,470)	(3,890)
Recognized net loss due to lump sum settlements	463	603	3,134	1,499
Recognized net actuarial loss	714	969	2,035	2,907
Net periodic benefit cost	1,704	1,269	5,528	3,496
Supplemental Retirement Plan [Member]
Net periodic benefit cost [Abstract]
Service cost	73	107	221	323
Interest cost	542	520	1,630	1,563
Amortization of prior service cost	63	63	188	188
Recognized net actuarial loss	214	246	649	745
Net periodic benefit cost	$ 892	$ 936	$ 2,688	$ 2,819

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Stock and Incentive Compensation Plans (Details)	9 Months Ended
	Sep. 30, 2016
Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Return on average tangible equity, performance measure	100.00%
Performance Based Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Time-Vested Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years

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Stock and Incentive Compensation Plans - Summary of Stock Plan Activity (Details) - Stock and Incentive Compensation Plan [Member] - shares	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Performance Based Award [Member]
Shares [Roll Forward]
Nonvested shares, beginning of period (in shares)	239,006	212,309
Granted (in shares)		99,116
Released from restriction (in shares)	(1,587)	(40,888)
Forfeited (in shares)	(283)	(33,401)
Nonvested shares, end of period (in shares)	237,136	237,136
Time-Vested Awards [Member]
Shares [Roll Forward]
Nonvested shares, beginning of period (in shares)	327,197	306,657
Granted (in shares)	2,000	139,291
Released from restriction (in shares)	(3,379)	(105,717)
Forfeited (in shares)	(917)	(15,330)
Nonvested shares, end of period (in shares)	324,901	324,901

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Stock and Incentive Compensation Plans - Compensation Expense for Awards Under Stock Plan (Details) - Stock and Incentive Compensation Plan [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total compensation expense	$ 941	$ 957	$ 2,741	$ 2,738
Performance Based Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total compensation expense	382	319	789	883
Time-Vested Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total compensation expense	$ 559	$ 638	$ 1,952	$ 1,855

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Contingencies - Additional Information (Details) $ in Millions	9 Months Ended
	Sep. 30, 2016 USD ($) Lawsuit	Sep. 30, 2015 USD ($)
Loss Contingencies [Line Items]
Unused commitments to extend credit	$ 3,110.0	$ 2,724.0
Pending or Threatened Litigation, Stanford Financial Group [Member]
Legal Proceedings [Abstract]
Lawsuits naming entity as defendant, number | Lawsuit	3
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Letters of credit, maturity term - maximum	3 years
Collateral held, fair value	$ 27.7	31.7
Standby Letters of Credit [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Potential exposure to credit loss in the event of nonperformance	$ 113.5	$ 132.2

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Earnings Per Share (EPS) - Weighted-Average Shares Used to Calculate Basic and Diluted EPS (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Basic shares (in shares)	67,625	67,557	67,618	67,547
Dilutive shares (in shares)	168	150	153	130
Diluted shares (in shares)	67,793	67,707	67,771	67,677

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Earnings Per Share (EPS) - Weighted-Average Antidilutive Stock Awards Excluded from Determining Diluted EPS (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Earnings Per Share [Abstract]
Weighted-average antidilutive stock awards	0	1	2	1

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Statements of Cash Flows (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Statement of cash flows specific transaction amounts [Abstract]
Income taxes paid		$ 24,646	$ 15,291
Interest expense paid on deposits and borrowings		17,132	14,639
Noncash transfers from loans to other real estate	[1]	$ 21,972	$ 26,196

[1] Includes transfers from covered loans to covered other real estate.

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Shareholders' Equity - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Mar. 11, 2016
Stockholders Equity [Line items]
Capital conservation buffer rate	0.625%	0.625%
Capital requirements phase-in period		1 year
Stock Repurchase Program
Stockholders Equity [Line items]
Amount of stock authorized for repurchase			$ 100.0
Repurchase shares of common stock	0	34,000

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Shareholders' Equity - Table of Actual Regulatory Capital Amounts and Ratios (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015
Trustmark Corporation [Member] | Common Equity Tier 1 Capital (to Risk Weighted Assets) [Member]
Common Equity Tier One Risk Based Capital [Abstract]
Actual Regulatory Capital Amount		$ 1,194,729	$ 1,161,598
Actual Regulatory Capital Ratio		12.35%	12.57%
Minimum Regulatory Capital Required Ratio		5.125%	4.50%
Minimum Regulatory Provision to be Well-Capitalized Ratio	[1]
Trustmark Corporation [Member] | Tier 1 Capital (to Risk Weighted Assets) [Member]
Tier 1 Capital (to Risk Weighted Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,254,453	$ 1,220,535
Actual Regulatory Capital Ratio		12.97%	13.21%
Minimum Regulatory Capital Required Ratio		6.625%	6.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio	[1]
Trustmark Corporation [Member] | Total Capital (to Risk Weighted Assets) [Member]
Total Capital (to Risk Weighted Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,336,704	$ 1,300,146
Actual Regulatory Capital Ratio		13.82%	14.07%
Minimum Regulatory Capital Required Ratio		8.625%	8.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio	[1]
Trustmark Corporation [Member] | Tier 1 Leverage (to Average Assets) [Member]
Tier 1 Leverage (to Average Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,254,453	$ 1,220,535
Actual Regulatory Capital Ratio		9.92%	10.03%
Minimum Regulatory Capital Required Ratio		4.00%	4.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio	[1]
Trustmark National Bank [Member] | Common Equity Tier 1 Capital (to Risk Weighted Assets) [Member]
Common Equity Tier One Risk Based Capital [Abstract]
Actual Regulatory Capital Amount		$ 1,235,923	$ 1,201,113
Actual Regulatory Capital Ratio		12.78%	13.00%
Minimum Regulatory Capital Required Ratio		5.125%	4.50%
Minimum Regulatory Provision to be Well-Capitalized Ratio		6.50%	6.50%
Trustmark National Bank [Member] | Tier 1 Capital (to Risk Weighted Assets) [Member]
Tier 1 Capital (to Risk Weighted Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,235,923	$ 1,201,113
Actual Regulatory Capital Ratio		12.78%	13.00%
Minimum Regulatory Capital Required Ratio		6.625%	6.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio		8.00%	8.00%
Trustmark National Bank [Member] | Total Capital (to Risk Weighted Assets) [Member]
Total Capital (to Risk Weighted Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,318,174	$ 1,280,724
Actual Regulatory Capital Ratio		13.63%	13.86%
Minimum Regulatory Capital Required Ratio		8.625%	8.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio		10.00%	10.00%
Trustmark National Bank [Member] | Tier 1 Leverage (to Average Assets) [Member]
Tier 1 Leverage (to Average Assets) [Abstract]
Actual Regulatory Capital Amount		$ 1,235,923	$ 1,201,113
Actual Regulatory Capital Ratio		9.79%	9.89%
Minimum Regulatory Capital Required Ratio		4.00%	4.00%
Minimum Regulatory Provision to be Well-Capitalized Ratio		5.00%	5.00%

[1] n/a

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Shareholders' Equity - Components of Accumulated Other Comprehensive Income (Loss) and the Related Tax Effects (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Securities available for sale and transferred securities, Before tax amount [Abstract]
Unrealized holding (losses) gains arising during the period, Before tax amount	$ (12,657)	$ 17,872	$ 32,057	$ 13,718
Reclassification adjustment for net losses realized in net income, Before tax amount			310
Change in net unrealized holding loss on securities transferred to held to maturity, Before tax amount	2,677	1,678	8,374	4,747
Total securities available for sale and transferred securities, Before tax amount	(9,980)	19,550	40,741	18,465
Securities available for sale and transferred securities, Tax (expense) benefit [Abstract]
Unrealized holding (losses) gains arising during the period, Tax (expense) benefit	4,841	(6,837)	(12,261)	(5,248)
Reclassification adjustment for net gains realized in net income, Tax (expense) benefit			(119)
Change in net unrealized holding loss on securities transferred to held to maturity, Tax (expense) benefit	(1,024)	(642)	(3,203)	(1,816)
Total securities available for sale and transferred securities, Tax (expense) benefit	3,817	(7,479)	(15,583)	(7,064)
Securities available for sale and transferred securities, Net of tax amount [Abstract]
Net unrealized holding (losses) gains on AFS Securities, net of tax at date of transfer	(7,816)	11,035	19,796	8,470
Less: adjustment for net losses realized in net income	0	0	191	0
Change in net unrealized holding loss on securities transferred to held to maturity, after tax income (expense)	1,653	1,036	5,171	2,931
Total securities available for sale and transferred securities, after tax income (expense)	(6,163)	12,071	25,158	11,401
Pension and other postretirement benefit plans, Before tax amount [Abstract]
Net change in prior service costs, before tax amount	63	63	188	188
Recognized net loss due to lump sum settlements, before tax amount	463	603	3,134	1,499
Change in net actuarial loss, before tax amount	928	1,216	2,684	3,653
Reclassification related to net losses realized in net income, before tax amount	1,454	1,882	6,006	5,340
Pension and other postretirement benefit plans, Tax (expense) benefit [Abstract]
Net change in prior service costs, tax (expense) benefit	(24)	(24)	(72)	(72)
Recognized net loss due to lump sum settlements, tax (expense) benefit	(177)	(230)	(1,199)	(573)
Change in net actuarial loss, tax (expense) benefit	(355)	(465)	(1,026)	(1,397)
Reclassification related to net losses realized in net income, tax (expense) benefit	(556)	(719)	(2,297)	(2,042)
Pension and other postretirement benefit plans, Net of tax amount [Abstract]
Net change in prior service costs	39	39	116	116
Recognized net loss due to lump sum settlements, after tax income (expense)	286	373	1,935	926
Change in net actuarial loss, after tax income (expense)	573	751	1,658	2,256
Reclassification related to net losses realized in net income, after tax income (expense)	898	1,163	3,709	3,298
Cash flow hedge derivatives, Before tax amount [Abstract]
Change in accumulated loss on effective cash flow hedge derivatives, before tax amount	417	(1,216)	(1,360)	(1,919)
Reclassification adjustment for loss realized in net income, before tax amount	157	211	473	632
Total cash flow hedge derivatives, before tax benefit	574	(1,005)	(887)	(1,287)
Total other comprehensive (loss) income, Before tax amount	(7,952)	20,427	45,860	22,518
Cash flow hedge derivatives, Tax (expense) benefit [Abstract]
Change in accumulated loss on effective cash flow hedge derivatives, tax (expense) benefit	(160)	465	520	734
Reclassification adjustment for loss realized in net income, tax (expense) benefit	(60)	(81)	(181)	(242)
Total cash flow hedge derivatives, tax (expense) benefit	(220)	384	339	492
Total other comprehensive (loss) income, Tax expense (benefit)	3,041	(7,814)	(17,541)	(8,614)
Cash flow hedge derivatives, Net of tax amount [Abstract]
Change in the accumulated loss on effective cash flow hedge derivatives, after tax amount	257	(751)	(840)	(1,185)
Less: adjustment for loss realized in net income	97	130	292	390
Total cash flow hedge derivatives, after tax amount	354	(621)	(548)	(795)
Total other comprehensive (loss) income, Net of tax	$ (4,911)	$ 12,613	$ 28,319	$ 13,904

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Shareholders' Equity - Changes in Balances of Component of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			$ 1,473,057	$ 1,419,940
Other comprehensive income (loss) before reclassification			24,127	13,514
Amounts reclassified from accumulated other comprehensive loss			4,192	390
Total other comprehensive (loss) income, Net of tax	$ (4,911)	$ 12,613	28,319	13,904
Balance	1,534,761	1,476,756	1,534,761	1,476,756
Securities Available for Sale and Transferred Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(17,394)	(11,003)
Other comprehensive income (loss) before reclassification			24,967	11,401
Amounts reclassified from accumulated other comprehensive loss			191
Total other comprehensive (loss) income, Net of tax			25,158	11,401
Balance	7,764	398	7,764	398
Defined Benefit Pension Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(27,840)	(31,617)
Other comprehensive income (loss) before reclassification				3,298
Amounts reclassified from accumulated other comprehensive loss			3,709
Total other comprehensive (loss) income, Net of tax			3,709	3,298
Balance	(24,131)	(28,319)	(24,131)	(28,319)
Cash Flow Hedge Derivatives [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(160)	136
Other comprehensive income (loss) before reclassification			(840)	(1,185)
Amounts reclassified from accumulated other comprehensive loss			292	390
Total other comprehensive (loss) income, Net of tax			(548)	(795)
Balance	(708)	(659)	(708)	(659)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(45,394)	(42,484)
Balance	$ (17,075)	$ (28,580)	$ (17,075)	$ (28,580)

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Fair Value - Financial Assets and Liabilities Measured at Fair Value Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 2,410,947	$ 2,345,422
Loans held for sale	242,097	160,189
Mortgage servicing rights	65,514	74,007	$ 69,809	$ 64,358
Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	124,641	138,609
Asset-Backed Securities and Structured Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		24,957
Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,410,947	2,345,422
Loans held for sale	242,097	160,189
Mortgage servicing rights	65,514	74,007
Other assets - derivatives	7,901	3,611
Other liabilities - derivatives	8,583	3,929
Recurring Basis [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	58,517	68,416
Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	124,641	138,609
Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,227,789	2,113,440
Recurring Basis [Member] | Asset-Backed Securities and Structured Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		24,957
Level 1 [Member] | Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Loans held for sale	0	0
Mortgage servicing rights	0	0
Other assets - derivatives	(25)	(149)
Other liabilities - derivatives	808	1,220
Level 1 [Member] | Recurring Basis [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Level 1 [Member] | Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Level 1 [Member] | Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Level 1 [Member] | Recurring Basis [Member] | Asset-Backed Securities and Structured Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		0
Level 2 [Member] | Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,410,947	2,345,422
Loans held for sale	242,097	160,189
Mortgage servicing rights	0	0
Other assets - derivatives	5,179	2,647
Other liabilities - derivatives	7,775	2,709
Level 2 [Member] | Recurring Basis [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	58,517	68,416
Level 2 [Member] | Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	124,641	138,609
Level 2 [Member] | Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	2,227,789	2,113,440
Level 2 [Member] | Recurring Basis [Member] | Asset-Backed Securities and Structured Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		24,957
Level 3 [Member] | Recurring Basis [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Loans held for sale	0	0
Mortgage servicing rights	65,514	74,007
Other assets - derivatives	2,747	1,113
Other liabilities - derivatives	0	0
Level 3 [Member] | Recurring Basis [Member] | US Treasury and Government [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Level 3 [Member] | Recurring Basis [Member] | Obligations of States and Political Subdivisions [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	0	0
Level 3 [Member] | Recurring Basis [Member] | Mortgage-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale	$ 0	0
Level 3 [Member] | Recurring Basis [Member] | Asset-Backed Securities and Structured Financial Products [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale		$ 0

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Fair Value - Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Details) - Recurring Basis [Member] - Level 3 [Member] - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
MSR [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		$ 74,007	$ 64,358
Total net (loss) gain included in Mortgage banking, net	[1]	(20,885)	(7,869)
Additions		12,392	13,320
Sales		0	0
Ending Balance		65,514	69,809
The amount of total gains (losses) for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period		(13,519)	(433)
Other Assets - Derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance		1,113	1,299
Total net (loss) gain included in Mortgage banking, net	[1]	9,486	6,193
Additions		0	0
Sales		(7,852)	(4,786)
Ending Balance		2,747	2,706
The amount of total gains (losses) for the period included in earnings that are attributable to the change in unrealized gains or losses still held, end of period		$ 904	$ (169)

[1] Total net (loss) gain included in Mortgage banking, net relating to the MSR includes changes in fair value due to market changes and due to run-off.

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Fair Value - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) Region	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Region	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Nonfinancial Assets and Liabilities [Abstract]
Outstanding balances in impaired loans	$ 28.6		$ 28.6		$ 26.5
Key market regions | Region	5		5
Foreclosed assets measured at fair value			$ 22.0	$ 26.8
Allowance for possible loan losses, Charge-offs for foreclosed assets upon initial recognition			19.8	7.4
Foreclosed assets re-measured after initial recognition			26.5	39.4
Write-downs of allowance for foreclosed assets after initial recognition			3.7	2.4
Noninterest gain (loss) Mortgage banking, net for changes in fair value of LHFS	$ (1.1)	$ 3.6	2.6	1.7
Interest earned on LHFS included in Interest and fees on LHFS and LHFI	1.5	$ 1.4	3.7	$ 3.7
GNMA optional repurchase loans	$ 37.3		$ 37.3		$ 36.0
Maximum [Member]
Nonfinancial Assets and Liabilities [Abstract]
Estimated fair value of financial instruments with immediate and shorter-term maturities			90 days

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Fair Value - Carrying Amounts and Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities held to maturity	$ 1,143,234	$ 1,187,818
Net LHFI	7,428,333	7,023,766
FDIC indemnification asset	0	738
Deposits	9,685,701	9,588,230
Long-term FHLB advances	751,075	501,155
Subordinated notes	49,993	49,969
Junior subordinated debt securities	61,856	61,856
Level 2 [Member] | Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and short-term investments	384,445	278,001
Securities held to maturity	1,143,234	1,187,818
Deposits	9,685,701	9,588,230
Short-term liabilities	927,710	853,659
Long-term FHLB advances	751,075	501,155
Subordinated notes	49,993	49,969
Junior subordinated debt securities	61,856	61,856
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	384,445	278,001
Securities held to maturity	1,173,101	1,195,367
Deposits	9,689,282	9,592,531
Short-term liabilities	927,710	853,659
Long-term FHLB advances	751,077	501,160
Subordinated notes	50,484	51,405
Junior subordinated debt securities	40,825	49,021
Level 3 [Member] | Carrying Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net LHFI	7,428,333	7,023,766
Acquired loans	284,357	378,419
FDIC indemnification asset	0	738
Level 3 [Member] | Estimate Fair Value [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net LHFI	7,493,082	7,136,105
Acquired loans	284,357	378,419
FDIC indemnification asset	$ 0	$ 738

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Fair Value - Fair Value and the Contractual Principal Outstanding of the LHFS (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Fair value and the contractual principal outstanding of the LHFS [Abstract]
Fair value of LHFS	$ 204,839	$ 124,165
LHFS contractual principal outstanding	198,288	121,608
Fair value less unpaid principal	$ 6,551	$ 2,557

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Derivative Financial Instruments - Additional Information (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016 USD ($) Contract	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Contract	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) Contract	Apr. 04, 2013 USD ($)
Designated as Hedging Instrument [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Accumulated net, after tax (loss) gain included in other comprehensive loss	$ 257,000	$ (751,000)	$ (840,000)	$ (1,185,000)
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Period for which cash flow hedges will be used to hedge quarterly interest payments			5 years
Derivative inception date			Dec. 31, 2014
Derivative maturity date			Dec. 31, 2019
Description of variable rate basis for derivative			three-month LIBOR
Ineffectiveness related to interest rate swap designated as a cash flow hedge			$ 0	0
Accumulated net, after tax (loss) gain included in other comprehensive loss			$ (708,000)		$ (160,000)
The period over which OCI will be reclassified as interest expense			12 months
Estimated amount to be reclassified as an increase to interest expense	$ 442,000		$ 442,000
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Junior Subordinated Debentures [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount						$ 60,000,000
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Three-month LIBOR [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Swap fixed interest rate to be paid	1.66%		1.66%
Derivatives not Designated as Hedging Instruments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	$ 338,500,000		$ 338,500,000		$ 264,500,000
Net (negative) positive ineffectiveness on MSR fair value	$ (1,200,000)	$ 479,000	$ (2,700,000)	$ 3,900,000
Derivatives not Designated as Hedging Instruments [Member] | Beneficiary [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of risk participation agreements | Contract	2		2		2
Aggregate notional amount of credit risk participation agreements	$ 14,300,000		$ 14,300,000		$ 14,800,000
Derivatives not Designated as Hedging Instruments [Member] | Guarantor [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Number of risk participation agreements | Contract	5		5		1
Aggregate notional amount of credit risk participation agreements	$ 28,600,000		$ 28,600,000		$ 5,900,000
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Total notional amount	350,300,000		350,300,000		359,300,000
Termination value of derivatives	5,900,000		5,900,000		2,600,000
Collateral Posted	5,800,000		5,800,000
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet obligations	301,500,000		301,500,000		190,500,000
Valuation adjustment			(1,200,000)		262,000
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Lock Commitments [Member]
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance sheet obligations	$ 195,700,000		195,700,000		108,100,000
Valuation adjustment			$ 2,700,000		$ 1,100,000

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Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	$ 5,151	$ 2,629
Fair value of derivative liability	6,570	2,954
Derivatives in Hedging Relationships [Member] | Interest Rate Swap [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	(1,147)	(259)
Derivatives not Designated as Hedging Instruments [Member] | Future Contracts [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	(199)	(207)
Derivatives not Designated as Hedging Instruments [Member] | Credit Risk Participation Agreement [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	28	18
Derivatives not Designated as Hedging Instruments [Member] | Credit Risk Participation Agreement [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	35	17
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	1,170	(262)
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	6,298	2,888
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	6,570	2,954
Derivatives not Designated as Hedging Instruments [Member] | Exchange Traded Purchased Options [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	174	58
Derivatives not Designated as Hedging Instruments [Member] | OTC Written Options (Rate Locks) [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative asset	2,747	1,113
Derivatives not Designated as Hedging Instruments [Member] | Exchange Traded Written Options [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Fair value of derivative liability	$ 808	$ 1,220

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Derivative Financial Instruments - Effects of Derivative Instruments on Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivatives in Hedging Relationships [Member] | Accumulated Other Comprehensive Loss and Other Interest Expense [Member]
Derivatives, Fair Value [Line Items]
Amount of loss reclassified from accumulated other comprehensive loss and recognized in other interest expense	$ (157)	$ (211)	$ (473)	$ (632)
Derivatives not Designated as Hedging Instruments [Member] | Mortgage Banking, Net [Member]
Derivatives, Fair Value [Line Items]
Amount of (loss) gain recognized in mortgage banking, net	(688)	1,265	11,042	4,221
Derivatives not Designated as Hedging Instruments [Member] | Bank Card and Other Fees [Member]
Derivatives, Fair Value [Line Items]
Amount of gain (loss) recognized in bank card and other fees	$ 1	$ (128)	$ (206)	$ (94)

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Derivative Financial Instruments - Schedule of Amount Included in Other Comprehensive Income for Derivative Instruments Designated as Hedges of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Derivatives in Hedging Relationships [Member]
Derivatives in cash flow hedging relationship
Amount of gain (loss) recognized in other comprehensive income (loss), net of tax	$ 257	$ (751)	$ (840)	$ (1,185)

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Derivative Financial Instruments - Information about Financial Instruments that are Eligible for Offset in the Consolidated Balance Sheets (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Offsetting Derivative Assets
Gross Amounts of Recognized Assets, Offsetting of Derivative Assets	$ 5,151	$ 2,629
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	5,151	2,629
Cash Collateral Received, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Assets	0	0
Net Amount, Offsetting of Derivative Assets	5,151	2,629
Offsetting Derivative Liabilities
Other liabilities - derivatives	6,570	2,954
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	6,570	2,954
Cash Collateral Posted, Gross Amounts Not Offset in the Statement of Financial Position, Offsetting of Derivative Liabilities	(4,932)	(1,195)
Net Amount, Offsetting of Derivative Liabilities	$ 1,638	$ 1,759

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Segment Information - Additional Information (Details)	9 Months Ended
	Sep. 30, 2016 Segment
Segment Reporting [Abstract]
Number of segments in which the business operates	3

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Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Net interest income	$ 97,564	$ 97,606	$ 288,681	$ 291,947
Provision for loan losses, net	4,975	3,770	11,730	7,760
Noninterest income	44,716	45,973	132,219	133,879
Noninterest expense	97,908	103,560	307,031	303,042
Income Before Income Taxes	39,397	36,249	102,139	115,024
Income taxes	8,415	7,819	22,651	26,844
Net Income	30,982	28,430	79,488	88,180
Selected Financial Information
Average assets	13,000,217	12,313,777	12,854,230	12,184,803
Depreciation and amortization	9,504	9,466	27,183	27,995
General Banking [Member]
Segment Reporting Information [Line Items]
Net interest income	97,395	97,408	287,950	291,483
Provision for loan losses, net	4,975	3,770	11,730	7,760
Noninterest income	27,207	28,320	81,230	82,477
Noninterest expense	84,358	90,043	267,063	262,403
Income Before Income Taxes	35,269	31,915	90,387	103,797
Income taxes	6,844	6,207	18,168	22,588
Net Income	28,425	25,708	72,219	81,209
Selected Financial Information
Average assets	12,916,011	12,231,450	12,788,736	12,123,213
Depreciation and amortization	9,274	9,209	26,483	27,256
Wealth Management [Member]
Segment Reporting Information [Line Items]
Net interest income	119	91	571	194
Noninterest income	7,434	7,748	22,681	23,477
Noninterest expense	6,216	6,195	18,200	19,373
Income Before Income Taxes	1,337	1,644	5,052	4,298
Income taxes	512	629	1,933	1,644
Net Income	825	1,015	3,119	2,654
Selected Financial Information
Average assets	6,039	4,181	1,842	3,020
Depreciation and amortization	44	44	131	139
Insurance [Member]
Segment Reporting Information [Line Items]
Net interest income	50	107	160	270
Noninterest income	10,075	9,905	28,308	27,925
Noninterest expense	7,334	7,322	21,768	21,266
Income Before Income Taxes	2,791	2,690	6,700	6,929
Income taxes	1,059	983	2,550	2,612
Net Income	1,732	1,707	4,150	4,317
Selected Financial Information
Average assets	78,167	78,146	63,652	58,570
Depreciation and amortization	$ 186	$ 213	$ 569	$ 600