XML 31 R52.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (5) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2012 | Sep. 30, 2011
Troubled Debt Restructurings [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | 40 | 6 | 58 | 35
Pre-Modification Outstanding Recorded Investment | $ 3,894 | $ 3,732 | $ 10,549 | $ 30,592
Post-Modification Outstanding Recorded Investment | 3,890 | 3,792 | 10,556 | 27,723
Troubled Debt Restructurings [Member] | Construction Land Development And Other Financing Receivable [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | 0 | 1 | 11 | 14
Pre-Modification Outstanding Recorded Investment | 0 | 1,843 | 4,078 | 9,114
Post-Modification Outstanding Recorded Investment | 0 | 1,843 | 4,078 | 8,447
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties[Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | 39 | 5 | 44 | 15
Pre-Modification Outstanding Recorded Investment | 3,695 | 1,889 | 5,062 | 5,112
Post-Modification Outstanding Recorded Investment | 3,691 | 1,949 | 5,069 | 3,549
Troubled Debt Restructurings [Member] | Nonresidential Nonfarm Properties Financing Receivables [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts |  |  | 2 | 4
Pre-Modification Outstanding Recorded Investment |  |  | 1,210 | 4,368
Post-Modification Outstanding Recorded Investment |  |  | 1,210 | 4,196
Troubled Debt Restructurings [Member] | Other Real Estate Secured Financing Receivable [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | 1 | 0 | 1 | 0
Pre-Modification Outstanding Recorded Investment | 199 | 0 | 199 | 0
Post-Modification Outstanding Recorded Investment | 199 | 0 | 199 | 0
Troubled Debt Restructurings [Member] | Commercial And Industrial Loans [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts |  |  | 0 | 2
Pre-Modification Outstanding Recorded Investment |  |  | 0 | 11,998
Post-Modification Outstanding Recorded Investment |  |  | 0 | 11,531
Troubled Debt Restructurings that Subsequently Defaulted [Member] |  |  |  |
Troubled Debt Restructurings that Subsequently Defaulted [Abstract] |  |  |  |
Number of Contracts | 19 | 4 | 19 | 4
Recorded Investment | 6,322 | 3,173 | 6,322 | 3,173
Troubled Debt Restructurings that Subsequently Defaulted [Member] | Construction Land Development And Other Financing Receivable [Member] |  |  |  |
Troubled Debt Restructurings that Subsequently Defaulted [Abstract] |  |  |  |
Number of Contracts | 10 | 2 | 10 | 2
Recorded Investment | 3,671 | 1,688 | 3,671 | 1,688
Troubled Debt Restructurings that Subsequently Defaulted [Member] | Secured by 1-4 Family Residential Properties[Member] |  |  |  |
Troubled Debt Restructurings that Subsequently Defaulted [Abstract] |  |  |  |
Number of Contracts | 8 | 2 | 8 | 2
Recorded Investment | 1,781 | 1,485 | 1,781 | 1,485
Troubled Debt Restructurings that Subsequently Defaulted [Member] | Nonresidential Nonfarm Properties Financing Receivables [Member] |  |  |  |
Troubled Debt Restructurings that Subsequently Defaulted [Abstract] |  |  |  |
Number of Contracts | 1 | 0 | 1 | 0
Recorded Investment | $ 870 | $ 0 | $ 870 | $ 0

X
- Definition The number of financing receivables that have been modified by troubled debt restructurings. + References No definition available. + Details
Name: | trmk_FinancingReceivableModificationsTroubledDebtRestructuringsNumberOfContracts
Namespace Prefix: | trmk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings after the financing receivable has been modified. + References No definition available. + Details
Name: | trmk_FinancingReceivableModificationsTroubledDebtRestructuringsPostModificationOutstandingRecordedInvestment
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings before the financing receivable has been modified. + References No definition available. + Details
Name: | trmk_FinancingReceivableModificationsTroubledDebtRestructuringsPreModificationOutstandingRecordedInvestment
Namespace Prefix: | trmk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of financing receivables that have been modified by troubled debt restructurings and then subsequently defaulted. + References No definition available. + Details
Name: | trmk_FinancingReceivableModificationsTroubledDebtRestructuringsSubsequentlyDefaultedNumberOfContracts
Namespace Prefix: | trmk_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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

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

X
- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953670-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953676-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6951948&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant