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Business Segment Information - Banking Segment (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |
Total interest income | $ 22,118 us-gaap_InterestAndDividendIncomeOperating | $ 9,021 us-gaap_InterestAndDividendIncomeOperating | $ 63,950 us-gaap_InterestAndDividendIncomeOperating | $ 23,788 us-gaap_InterestAndDividendIncomeOperating |
Total interest expense | 1,723 us-gaap_InterestExpense | 893 us-gaap_InterestExpense | 4,819 us-gaap_InterestExpense | 2,463 us-gaap_InterestExpense |
Net interest income | 20,395 us-gaap_InterestIncomeExpenseNet | 8,128 us-gaap_InterestIncomeExpenseNet | 59,131 us-gaap_InterestIncomeExpenseNet | 21,325 us-gaap_InterestIncomeExpenseNet |
Provision for loan losses | 1,375 us-gaap_ProvisionForLoanAndLeaseLosses | 1,735 us-gaap_ProvisionForLoanAndLeaseLosses | 4,047 us-gaap_ProvisionForLoanAndLeaseLosses | 2,355 us-gaap_ProvisionForLoanAndLeaseLosses |
Net interest income after provision for loan losses | 19,020 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 6,393 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 55,084 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss | 18,970 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss |
Noninterest Income | 15,804 us-gaap_NoninterestIncome | 717 us-gaap_NoninterestIncome | 21,046 us-gaap_NoninterestIncome | 1,491 us-gaap_NoninterestIncome |
Gain on branch sale | 12,619 us-gaap_GainLossOnSaleOfBusiness |  | 12,619 us-gaap_GainLossOnSaleOfBusiness |  |
Other noninterest income | 3,185 us-gaap_NoninterestIncomeOther |  | 8,427 us-gaap_NoninterestIncomeOther |  |
Noninterest expense | 18,461 us-gaap_NoninterestExpense | 6,547 us-gaap_NoninterestExpense | 49,517 us-gaap_NoninterestExpense | 18,067 us-gaap_NoninterestExpense |
Net income before income tax | 16,363 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 563 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 26,613 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | 2,394 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments |
Total assets | 1,347,798 us-gaap_Assets | 392,938 us-gaap_Assets | 1,347,798 us-gaap_Assets | 392,938 us-gaap_Assets | 1,288,239 us-gaap_Assets
Gross loans | 977,139 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 265,393 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 977,139 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 265,393 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount | 881,099 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Operating Segments | Factoring |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total interest income | 7,423 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 4,704 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 19,165 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 12,381 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Intersegment interest allocations | (990)tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | (577)tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | (2,497)tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | (1,508)tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Total interest expense |  |  |  | 1 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Net interest income | 6,433 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 4,127 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 16,668 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 10,872 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Provision for loan losses | 452 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 341 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 1,354 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 632 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Net interest income after provision for loan losses | 5,981 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 3,786 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 15,314 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 10,240 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Noninterest Income |  | 256 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |  | 824 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Other noninterest income | 431 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |  | 1,218 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |  |
Intersegment Expense Allocations |  | 14 tbk_IntersegmentExpenseAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |  | 100 tbk_IntersegmentExpenseAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Noninterest expense | 4,125 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 2,454 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 10,570 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 6,961 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Net income before income tax | 2,287 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 1,574 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 5,962 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 4,003 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Total assets | 170,088 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 110,571 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 170,088 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 110,571 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Gross loans | 158,129 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 95,065 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 158,129 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember | 95,065 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_FactoringMember |
Operating Segments | Banking |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total interest income | 14,689 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 4,290 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 44,753 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 11,375 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Intersegment interest allocations | 990 tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 577 tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 2,497 tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 1,508 tbk_IntersegmentInterestAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Total interest expense | 1,312 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 893 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 3,590 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 2,462 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Net interest income | 14,367 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 3,974 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 43,660 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 10,421 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Provision for loan losses | 923 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 1,394 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 2,693 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 1,723 us-gaap_ProvisionForLoanAndLeaseLosses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Net interest income after provision for loan losses | 13,444 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 2,580 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 40,967 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 8,698 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Noninterest Income |  | 385 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  | 569 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Gain on branch sale | 12,619 us-gaap_GainLossOnSaleOfBusiness / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  | 12,619 us-gaap_GainLossOnSaleOfBusiness / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  |
Other noninterest income | 2,345 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  | 6,256 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  |
Intersegment Expense Allocations |  | (14)tbk_IntersegmentExpenseAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |  | (100)tbk_IntersegmentExpenseAllocations / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Noninterest expense | 12,344 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 3,026 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 34,234 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 8,834 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Net income before income tax | 16,064 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | (47)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 25,608 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 533 us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Total assets | 1,155,434 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 243,533 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 1,155,434 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 243,533 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Gross loans | 819,010 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 170,328 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 819,010 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember | 170,328 us-gaap_LoansAndLeasesReceivableGrossCarryingAmount / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = tbk_BankingMember |
Corporate |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total interest income | 6 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 27 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 32 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 32 us-gaap_InterestAndDividendIncomeOperating / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Total interest expense | 411 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | 1,229 us-gaap_InterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |
Net interest income | (405)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 27 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (1,197)us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 32 us-gaap_InterestIncomeExpenseNet / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Net interest income after provision for loan losses | (405)us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 27 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (1,197)us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 32 us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Noninterest Income |  | 76 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | 98 us-gaap_NoninterestIncome / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Other noninterest income | 409 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  | 953 us-gaap_NoninterestIncomeOther / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |
Noninterest expense | 1,992 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 1,067 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 4,713 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 2,272 us-gaap_NoninterestExpense / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Net income before income tax | (1,988)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (964)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (4,957)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (2,142)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |
Total assets | $ 22,276 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | $ 38,834 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | $ 22,276 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | $ 38,834 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |

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- Definition Intersegment expense allocations. + References No definition available. + Details
Name: | tbk_IntersegmentExpenseAllocations
Namespace Prefix: | tbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Intersegment interest allocations. + References No definition available. + Details
Name: | tbk_IntersegmentInterestAllocations
Namespace Prefix: | tbk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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