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Loans and Allowance for Loan and Lease Losses - Summary of Allowance for Loan and Lease Losses (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | $ 3,645 us-gaap_LoansAndLeasesReceivableAllowance |  |  |  | $ 1,926 us-gaap_LoansAndLeasesReceivableAllowance | $ 3,645 us-gaap_LoansAndLeasesReceivableAllowance | $ 1,926 us-gaap_LoansAndLeasesReceivableAllowance | $ 423 us-gaap_LoansAndLeasesReceivableAllowance
Provision for loan losses | 1,811 us-gaap_ProvisionForLoanAndLeaseLosses | 1,375 us-gaap_ProvisionForLoanAndLeaseLosses | 1,747 us-gaap_ProvisionForLoanAndLeaseLosses | 925 us-gaap_ProvisionForLoanAndLeaseLosses | 1,057 us-gaap_ProvisionForLoanAndLeaseLosses | 1,735 us-gaap_ProvisionForLoanAndLeaseLosses | 241 us-gaap_ProvisionForLoanAndLeaseLosses | 379 us-gaap_ProvisionForLoanAndLeaseLosses | 5,858 us-gaap_ProvisionForLoanAndLeaseLosses | 3,412 us-gaap_ProvisionForLoanAndLeaseLosses | 1,739 us-gaap_ProvisionForLoanAndLeaseLosses
Charge-offs |  |  |  |  |  |  |  |  | (1,352)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs | (2,104)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs | (545)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Recoveries |  |  |  |  |  |  |  |  | 692 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts | 411 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts | 309 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts
Ending Balance | 8,843 us-gaap_LoansAndLeasesReceivableAllowance |  |  |  | 3,645 us-gaap_LoansAndLeasesReceivableAllowance |  |  |  | 8,843 us-gaap_LoansAndLeasesReceivableAllowance | 3,645 us-gaap_LoansAndLeasesReceivableAllowance | 1,926 us-gaap_LoansAndLeasesReceivableAllowance
Loans receivable | Commercial real estate |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 348 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |  |  |  | 261 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 348 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 261 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 34 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Provision for loan losses |  |  |  |  |  |  |  |  | 199 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 114 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 359 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (18)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | (156)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | (169)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Recoveries |  |  |  |  |  |  |  |  | 4 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 129 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 37 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Ending Balance | 533 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |  |  |  | 348 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember |  |  |  | 533 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 348 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember | 261 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialRealEstatePortfolioSegmentMember
Loans receivable | Construction, land development, land |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 110 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |  |  |  | 40 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 110 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 40 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |
Provision for loan losses |  |  |  |  |  |  |  |  | 310 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 58 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 40 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (100)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |  |
Recoveries |  |  |  |  |  |  |  |  | 13 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 12 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |
Ending Balance | 333 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |  |  |  | 110 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember |  |  |  | 333 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 110 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember | 40 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_ConstructionLandDevelopmentLandPortfolioSegmentMember
Loans receivable | 1-4 family residential properties |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 100 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember |  |  |  | 227 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 100 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 227 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 132 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Provision for loan losses |  |  |  |  |  |  |  |  | 416 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | (166)us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 104 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (409)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | (94)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | (116)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Recoveries |  |  |  |  |  |  |  |  | 108 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 133 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 107 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Ending Balance | 215 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember |  |  |  | 100 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember |  |  |  | 215 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 100 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember | 227 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ResidentialPortfolioSegmentMember
Loans receivable | Farmland |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 7 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember |  |  |  | 5 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 7 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 5 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember |
Provision for loan losses |  |  |  |  |  |  |  |  | 12 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 2 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 53 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  |  |  | (48)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember
Ending Balance | 19 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember |  |  |  | 7 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember |  |  |  | 19 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 7 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember | 5 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FarmlandPortfolioSegmentMember
Loans receivable | Commercial Loans |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 1,145 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember |  |  |  | 172 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 1,145 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 172 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember |
Provision for loan losses |  |  |  |  |  |  |  |  | 2,652 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 2,474 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 61 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (13)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | (1,515)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember |
Recoveries |  |  |  |  |  |  |  |  | 219 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 14 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 111 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Ending Balance | 4,003 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember |  |  |  | 1,145 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember |  |  |  | 4,003 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 1,145 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember | 172 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_CommercialPortfolioSegmentMember
Loans receivable | Factored receivables |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 1,842 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember |  |  |  | 1,221 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 1,842 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 1,221 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember |
Provision for loan losses |  |  |  |  |  |  |  |  | 1,971 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 783 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 1,380 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (419)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | (226)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | (212)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember
Recoveries |  |  |  |  |  |  |  |  | 68 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 64 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 53 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember
Ending Balance | 3,462 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember |  |  |  | 1,842 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember |  |  |  | 3,462 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 1,842 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember | 1,221 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_FactoredReceivablesSegmentMember
Loans receivable | Consumer |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 49 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |  |  |  |  | 49 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |  |
Provision for loan losses |  |  |  |  |  |  |  |  | 204 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 103 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | (1)us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Charge-offs |  |  |  |  |  |  |  |  | (393)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | (113)us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
Recoveries |  |  |  |  |  |  |  |  | 280 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 59 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 1 us-gaap_AllowanceForLoanAndLeaseLossRecoveryOfBadDebts / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember
Ending Balance | 140 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |  |  |  | 49 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |  |  |  | 140 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember | 49 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerPortfolioSegmentMember |
Loans receivable | Mortgage warehouse |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  | 44 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |  |  |  |  | 44 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |  |
Provision for loan losses |  |  |  |  |  |  |  |  | 94 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember | 44 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |
Ending Balance | 138 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |  |  |  | 44 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |  |  |  | 138 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember | 44 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_MortgageWarehouseSegmentMember |
Loans receivable | Unallocated |  |  |  |  |  |  |  |  |  |  |
Loans [Line Items] |  |  |  |  |  |  |  |  |  |  |
Beginning Balance |  |  |  |  |  |  |  |  |  |  | 257 us-gaap_LoansAndLeasesReceivableAllowance / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_UnallocatedMember
Provision for loan losses |  |  |  |  |  |  |  |  |  |  | $ (257)us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = us-gaap_LoansReceivableMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = tbk_UnallocatedMember

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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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(d)) -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 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 + Details
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- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + 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(d)) -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 -Section 03 -Paragraph 7 -Subparagraph d -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953423-111524 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section L -Subsection 1 + Details
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