XML 83 R49.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (2) (Details) (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011
Financing Receivable Aging [Abstract] |  |
Current | $ 5,415,443,000 | $ 5,708,531,000
Past Due 30 - 89 Days | 26,163,000 | 34,265,000
Nonaccrual | 80,658,000 | 110,458,000
Total LHFI | 5,527,963,000 | 5,857,484,000
Number of Days used as Baseline in Evaluating Collateral Documentation Exceptions For Loan Policy (in days) | 90 days |
Loan Amount Used as Baseline in Credit Quality Review For Loan Policy | 100,000 |
Credit Amount Used as Baseline in Evaluating Residential Real Estate Development and Non-owner Occupied Commercial Real Estate For Loan Policy | 1,000,000 |
Charge-off Amount Used as Baseline in Credit Quality Review For Loan Policy | 25,000 |
Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 432,760,000 | 430,228,000
Past Due 30 - 89 Days | 1,762,000 | 1,784,000
Nonaccrual | 26,077,000 | 40,413,000
Total LHFI | 460,599,000 | 474,082,000
Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 1,471,739,000 | 1,725,521,000
Past Due 30 - 89 Days | 12,672,000 | 9,755,000
Nonaccrual | 24,260,000 | 24,348,000
Total LHFI | 1,511,514,000 | 1,760,930,000
Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 1,375,208,000 | 1,391,868,000
Past Due 30 - 89 Days | 3,364,000 | 9,925,000
Nonaccrual | 18,873,000 | 23,981,000
Total LHFI | 1,397,536,000 | 1,425,774,000
Real Estate Secured Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 180,720,000 | 198,099,000
Past Due 30 - 89 Days | 184,000 | 879,000
Nonaccrual | 3,900,000 | 5,871,000
Total LHFI | 184,804,000 | 204,849,000
Consumer Loans [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 177,006,000 | 235,261,000
Past Due 30 - 89 Days | 4,246,000 | 7,172,000
Nonaccrual | 411,000 | 825,000
Total LHFI | 181,896,000 | 243,756,000
Other Loans Financing Receivable [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 626,937,000 | 604,752,000
Past Due 30 - 89 Days | 74,000 | 3,104,000
Nonaccrual | 922,000 | 872,000
Total LHFI | 627,933,000 | 608,728,000
Commercial Portfolio Segment [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 3,906,118,000 | 3,924,755,000
Commercial Portfolio Segment [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 3,584,068,000 | 3,554,041,000
Commercial Portfolio Segment [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 74,793,000 | 84,848,000
Commercial Portfolio Segment [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 241,981,000 | 284,694,000
Commercial Portfolio Segment [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 5,276,000 | 1,172,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 413,564,000 | 425,182,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 321,938,000 | 308,618,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 23,923,000 | 26,273,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 67,703,000 | 90,175,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 116,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 131,226,000 | 135,621,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 115,316,000 | 119,155,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 1,026,000 | 142,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 14,844,000 | 16,324,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 40,000 | 0
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 1,396,489,000 | 1,424,641,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 1,277,544,000 | 1,287,886,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 12,607,000 | 26,232,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 106,338,000 | 110,472,000
Commercial Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 51,000
Commercial Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 1,163,162,000 | 1,137,584,000
Commercial Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 1,075,124,000 | 1,048,556,000
Commercial Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 36,782,000 | 32,046,000
Commercial Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 46,845,000 | 56,577,000
Commercial Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 4,411,000 | 405,000
Commercial Portfolio Segment [Member] | Consumer Loans [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 343,000 | 668,000
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 343,000 | 643,000
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 25,000
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 0
Commercial Portfolio Segment [Member] | Consumer Loans [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 0
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 622,003,000 | 602,845,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 620,563,000 | 600,411,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 4,000 | 0
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 611,000 | 1,834,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 825,000 | 600,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 179,331,000 | 198,214,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] | Pass [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 173,240,000 | 188,772,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] | Special Mention [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 451,000 | 130,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] | Substandard [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 5,640,000 | 9,312,000
Commercial Portfolio Segment [Member] | Other Loans Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] | Doubtful [Member] |  |
Financing Receivable [Abstract] |  |
Financing receivable commercial | 0 | 0
Consumer Portfolio Segment [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 1,585,236,000 | 1,893,658,000
Past Due 30 - 89 Days | 15,012,000 | 16,356,000
Past Due Greater Than 90 Days | 2,917,000 | 1,804,000
Nonaccrual | 18,680,000 | 20,911,000
Subtotal | 1,621,845,000 | 1,932,729,000
Total LHFI | 5,527,963,000 | 5,857,484,000
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Construction Land Development And Other Land Properties [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 45,790,000 | 47,253,000
Past Due 30 - 89 Days | 353,000 | 353,000
Past Due Greater Than 90 Days | 0 | 0
Nonaccrual | 892,000 | 1,294,000
Subtotal | 47,035,000 | 48,900,000
Total LHFI | 460,599,000 | 474,082,000
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by 1-4 Family Residential Properties[Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 1,349,926,000 | 1,596,800,000
Past Due 30 - 89 Days | 10,335,000 | 8,477,000
Past Due Greater Than 90 Days | 2,683,000 | 1,306,000
Nonaccrual | 17,344,000 | 18,726,000
Subtotal | 1,380,288,000 | 1,625,309,000
Total LHFI | 1,511,514,000 | 1,760,930,000
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Secured by NonFarm, Nonresidential Properties [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 1,047,000 | 1,133,000
Past Due 30 - 89 Days | 0 | 0
Past Due Greater Than 90 Days | 0 | 0
Nonaccrual | 0 | 0
Subtotal | 1,047,000 | 1,133,000
Total LHFI | 1,397,536,000 | 1,425,774,000
Consumer Portfolio Segment [Member] | Real Estate Secured Financing Receivable [Member] | Other Real Estate Secured Financing Receivable [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 5,416,000 | 6,405,000
Past Due 30 - 89 Days | 33,000 | 201,000
Past Due Greater Than 90 Days | 0 | 0
Nonaccrual | 24,000 | 29,000
Subtotal | 5,473,000 | 6,635,000
Total LHFI | 184,804,000 | 204,849,000
Consumer Portfolio Segment [Member] | Commercial And Industrial Loans Financing Receivable [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 464,000 | 1,626,000
Past Due 30 - 89 Days | 45,000 | 118,000
Past Due Greater Than 90 Days | 0 | 0
Nonaccrual | 10,000 | 37,000
Subtotal | 519,000 | 1,781,000
Total LHFI | 1,163,681,000 | 1,139,365,000
Consumer Portfolio Segment [Member] | Consumer Loans [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 176,663,000 | 234,593,000
Past Due 30 - 89 Days | 4,246,000 | 7,172,000
Past Due Greater Than 90 Days | 234,000 | 498,000
Nonaccrual | 410,000 | 825,000
Subtotal | 181,553,000 | 243,088,000
Total LHFI | 181,896,000 | 243,756,000
Consumer Portfolio Segment [Member] | Other Loans Financing Receivable [Member] |  |
Financing Receivable Aging [Abstract] |  |
Current | 5,930,000 | 5,848,000
Past Due 30 - 89 Days | 0 | 35,000
Past Due Greater Than 90 Days | 0 | 0
Nonaccrual | 0 | 0
Subtotal | 5,930,000 | 5,883,000
Total LHFI | $ 627,933,000 | $ 608,728,000

X
- Definition The minimum baseline dollar amount of charge-offs in preceding month used to evaluate loans under the entity's credit quality review process. + References No definition available. + Details
Name: | trmk_ChargeOffAmountUsedBaselineCreditQualityReviewForLoanPolicy
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded Investment in financing receivables categorized as consumer loans including those current, past due and nonaccrual status. + References No definition available. + Details
Name: | trmk_ConsumerLoansFinancingReceivableRecordedInvestment
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The minimum credit amount used to determine which residential real estate and non-owner occupied commercial real estate projects are evaluated under credit quality reviews by entity. + References No definition available. + Details
Name: | trmk_CreditAmountUsedBaselineEvaluationResidentialRealEstateDevelopmentAndNonOwnerOccupiedCommercialRealEstate
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | trmk_FinancingReceivableAbstract
Namespace Prefix: | trmk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing receivables that are less than 90 days past due but more than 29 days past due. + References No definition available. + Details
Name: | trmk_FinancingReceivableRecordedInvestment30To89DaysPastDue
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Financing receivables that are greater than 90 days past due. + References No definition available. + Details
Name: | trmk_FinancingReceivableRecordedInvestmentGreaterThan90DaysPastDue
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The minimum baseline dollar amount used to evaluate loans that are either delinquent or on nonaccrual under the entity's credit quality review process. + References No definition available. + Details
Name: | trmk_LoanAmountUsedBaselineCreditQualityReviewForLoanPolicy
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The minimum of days past due used as a baseline for the evaluation of collateral documentation under the entity's loan policy. + References No definition available. + Details
Name: | trmk_NumberOfDaysPastDueUsedInEvaluatingCollateralExceptions
Namespace Prefix: | trmk_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953401-111524 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5111-111524 -Subparagraph (d) + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Reflects the aggregate gross carrying amount of all categories of loans and leases held in portfolio, after deducting deferred income, but before deducting the allowance for losses on loans and leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5074-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6375948&loc=d3e4428-111522 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -Subparagraph e -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 AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 8 -Paragraph 116 -IssueDate 2006-05-01 -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 OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 8 -Subparagraph e -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the gross carrying amount of loans to businesses that engage in international activities. Such amounts may include letters of credit, bankers' acceptances, receivables factoring, open account financing, sales on consignment, documentary collections, advances against collections, and forfeiting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 03 -Paragraph 7 -Subparagraph a Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 8 -Paragraph 49, 50 -IssueDate 2006-05-01 -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 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6965416&loc=d3e5066-111524 + Details
Name: | us-gaap_LoansReceivableCommercialTradeFinancing
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant