XML 52 R6.htm IDEA: XBRL DOCUMENT v2.4.0.6

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statements of Changes in Shareholders' Equity (Unaudited) [Abstract]
Balance, January 1,	$ 1,215,037	$ 1,149,484
Net income per consolidated statements of income	89,573	82,583
Other comprehensive income	4,127	31,032
Common stock dividends paid	(44,941)	(44,614)
Common stock issued-net, long-term incentive plans:
Stock options	268	1,507
Restricted stock	(1,203)	(1,867)
Excess tax benefit from stock-based compensation arrangements	35	553
Compensation expense, long-term incentive plans	3,119	2,928
Common stock issued, business combinations	12,000	0
Balance at end of period	$ 1,278,015	$ 1,221,606

X

- Details

Name:	trmk_CommonStockIssuedNetLongTermIncentivePlansAbstract
Namespace Prefix:	trmk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of compensation expense from long-term incentive plans recognized during the period as a component of net income.

+ References

No definition available.

+ Details

Name:	trmk_CompensationExpenseLongTermIncentivePlans
Namespace Prefix:	trmk_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The restricted stock portion of Common stock issued-net, long-term incentive plans

+ References

No definition available.

+ Details

Name:	trmk_RestrictedStock
Namespace Prefix:	trmk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The stock option portion of Common stock issued-net, long-term incentive plans

+ References

No definition available.

+ Details

Name:	trmk_StockOptions
Namespace Prefix:	trmk_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Tax benefit associated with any equity-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 740



-Section 45



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6419406&loc=d3e23524-113945







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Statement of Financial Accounting Standard (FAS)



-Number 123R



-Paragraph 62



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.3-04)



-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770







Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

+ Details

Name:	us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.3-04)



-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 942



-SubTopic 405



-Section 45



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

Name:	us-gaap_DividendsCommonStock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 944



-SubTopic 225



-Section S99



-Paragraph 1



-Subparagraph (SX 210.7-04.22)



-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 28



-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.18)



-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688







Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Research Bulletin (ARB)



-Number 51



-Paragraph 38



-Subparagraph a



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 5: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 260



-SubTopic 10



-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257







Reference 6: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 220



-SubTopic 10



-Section 45



-Paragraph 6



-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e565-108580







Reference 7: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Research Bulletin (ARB)



-Number 51



-Paragraph A7



-Appendix A







Reference 8: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Statement of Financial Accounting Standard (FAS)



-Number 130



-Paragraph 10, 15



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 9: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Other Comprehensive Income



-URI http://asc.fasb.org/extlink&oid=6519514







Reference 10: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Research Bulletin (ARB)



-Number 51



-Paragraph 38



-Subparagraph d



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 11: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Emerging Issues Task Force (EITF)



-Number 87-21



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 12: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Net Income



-URI http://asc.fasb.org/extlink&oid=6518256







Reference 13: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 944



-SubTopic 225



-Section S99



-Paragraph 1



-Subparagraph (SX 210.7-04.19)



-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913







Reference 14: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Article 5



-Section 03



-Paragraph 19







Reference 15: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Statement of Financial Accounting Standard (FAS)



-Number 95



-Paragraph 28, 29, 30



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 16: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Paragraph 20



-Article 9

+ Details

Name:	us-gaap_NetIncomeLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Statement of Financial Accounting Standard (FAS)



-Number 130



-Paragraph 22, 23, 24, 25



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Principles Board Opinion (APB)



-Number 12



-Paragraph 10



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 220



-SubTopic 10



-Section 45



-Paragraph 8



-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e599-108580







Reference 5: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 31



-Article 5







Reference 6: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3







Reference 7: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Research Bulletin (ARB)



-Number 51



-Paragraph 38



-Subparagraph c(3)



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Name:	us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.29-31)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Research Bulletin (ARB)



-Number 51



-Paragraph A3



-Appendix A







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 29, 30, 31



-Article 5







Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Staff Accounting Bulletin (SAB)



-Number Topic 4



-Section E







Reference 5: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SAB TOPIC 4.E)



-URI http://asc.fasb.org/extlink&oid=6228006&loc=d3e74512-122707

+ Details

Name:	us-gaap_StockholdersEquity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Value of stock issued pursuant to acquisitions during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.3-04)



-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770







Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 2



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644







Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher AICPA



-Name Accounting Principles Board Opinion (APB)



-Number 12



-Paragraph 10



-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.







Reference 4: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 210



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.5-02.29-31)



-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682







Reference 5: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3







Reference 6: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 02



-Paragraph 29, 30, 31



-Article 5

+ Details

Name:	us-gaap_StockIssuedDuringPeriodValueAcquisitions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration