XML 15 R48.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI (2) (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) Contract | Jun. 30, 2014 USD ($) Contract | Jun. 30, 2015 USD ($) Contract | Jun. 30, 2014 USD ($) Contract
Troubled Debt Restructurings [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | Contract | 6 | 4 | 12 | 14
Pre-Modification Outstanding Recorded Investment | $ 3,594 | $ 278 | $ 3,972 | $ 981
Post-Modification Outstanding Recorded Investment | $ 3,594 | $ 273 | $ 3,972 | $ 967
Troubled Debt Restructurings [Member] | Secured by 1-4 Family Residential Properties [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | Contract | 2 | 4 | 8 | 14
Pre-Modification Outstanding Recorded Investment | $ 82 | $ 278 | $ 460 | $ 981
Post-Modification Outstanding Recorded Investment | $ 82 | $ 273 | $ 460 | $ 967
Troubled Debt Restructurings [Member] | Secured by Nonfarm, Nonresidential Properties [Member] |  |  |  |
Troubled Debt Restructurings [Abstract] |  |  |  |
Number of Contracts | Contract | 4 | 0 | 4 | 0
Pre-Modification Outstanding Recorded Investment | $ 3,512 | $ 0 | $ 3,512 | $ 0
Post-Modification Outstanding Recorded Investment | $ 3,512 | $ 0 | $ 3,512 | $ 0
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 | Contract |  |  | 4 | 1
Recorded Investment |  |  | $ 245 | $ 108

X
- References No definition available. + Details
Name: | trmk_TroubledDebtRestructuringsThatSubsequentlyDefaultedAbstract
Namespace Prefix: | trmk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of 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 33 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Post-modification amount of investment in financing receivables 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 33 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Pre-modification amount of investment in financing receivables 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 33 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TroubledDebtRestructuringDebtorCurrentPeriodAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=trmk_TroubledDebtRestructuringsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationNameAxis=trmk_ResidentialFinancingReceivableMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationNameAxis=trmk_NonresidentialNonfarmPropertiesFinancingReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=trmk_TroubledDebtRestructuringsThatSubsequentlyDefaultedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |