XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Summary of Significant Accounting Policies - Additional Information (Details) | 6 Months Ended
--- | ---
Jun. 30, 2017 USD ($) Segments
Summary of Significant Accounting Policies [Line Items] |
Number of reportable segments | Segments | 4
Operating Lease Commitments |
Summary of Significant Accounting Policies [Line Items] |
Contractual obligation | $ | $ 6,937,000

X
- Definition Summary of significant accounting policies. + References No definition available. + Details
Name: | tbk_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix: | tbk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717 + Details
Name: | us-gaap_OperatingLeasesFutureMinimumPaymentsDue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=tbk_OperatingLeaseCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |