XML 76 R63.htm IDEA: XBRL DOCUMENT v2.4.1.9

Fair Value Disclosures - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liabilities, fair value disclosure, recurring	0us-gaap_LiabilitiesFairValueDisclosureRecurring	$ 0us-gaap_LiabilitiesFairValueDisclosureRecurring
Liabilities, fair value disclosure, nonrecurring	0us-gaap_LiabilitiesFairValueDisclosureNonrecurring	0us-gaap_LiabilitiesFairValueDisclosureNonrecurring
Level 3 | Minimum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Percentage of selling and closing costs for loans	5.00%tbk_LoansReceivableSellingAndClosingCostsAsPercentageOfUnderlyingCollateral / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember
Real estate selling and closing costs as a percentage of appraised value	5.00%tbk_RealEstateSellingAndClosingCostsAsPercentageOfAppraisedValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MinimumMember
Level 3 | Maximum [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Percentage of selling and closing costs for loans	8.00%tbk_LoansReceivableSellingAndClosingCostsAsPercentageOfUnderlyingCollateral / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember
Real estate selling and closing costs as a percentage of appraised value	8.00%tbk_RealEstateSellingAndClosingCostsAsPercentageOfAppraisedValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_RangeAxis = us-gaap_MaximumMember
State and Municipal | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Assets measured at fair value	3,495us-gaap_AssetsFairValueDisclosureRecurring / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember

X

- Definition

Loans receivable selling and closing costs as percentage of underlying collateral.

+ References

No definition available.

+ Details

Name:	tbk_LoansReceivableSellingAndClosingCostsAsPercentageOfUnderlyingCollateral
Namespace Prefix:	tbk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Real estate selling and closing costs as percentage of appraised value.

+ References

No definition available.

+ Details

Name:	tbk_RealEstateSellingAndClosingCostsAsPercentageOfAppraisedValue
Namespace Prefix:	tbk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_AssetsFairValueDisclosureRecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Aggregation of the liabilities reported on the balance sheet measured at fair value on a nonrecurring basis by the entity.

+ References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosureNonrecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity.

+ References

No definition available.

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosureRecurring
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_MunicipalBondsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: