Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2014
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations. Triumph Bancorp, Inc. (collectively with its subsidiaries, “TBI”, “Triumph”, or the “Company” as applicable) is a financial holding company headquartered in Dallas, Texas. The accompanying consolidated financial statements include the accounts of TBI and its wholly owned subsidiaries Triumph Capital Advisors, LLC (TCA), Triumph CRA Holdings, LLC (TCRA), National Bancshares, Inc. (NBI), NBI’s wholly owned subsidiary Triumph Community Bank, N.A. (TCB), Triumph Savings Bank, SSB (TSB), TSB’s majority owned subsidiary Triumph Commercial Finance LLC (TCF), TCF’s wholly owned subsidiary Advance Business Capital LLC (ABC), which currently operates under the d/b/a of Triumph Business Capital, and TSB’s wholly owned subsidiary Triumph Insurance Group (TIG). In addition, (i) TSB does business under the Triumph Commercial Finance name with respect to its commercial finance business, including asset based lending, equipment lending and general factoring and (ii) TCB does business under the Triumph Healthcare Finance name with respect to its healthcare asset based lending business. In the third quarter of 2014, the TCF entity was dissolved and ABC became a wholly owned subsidiary of TSB.
Basis of Presentation	Basis of Presentation. The accompanying unaudited condensed consolidated financial statements of the Company have been prepared in accordance with United States Generally Accepted Accounting Principles (GAAP) for interim financial information and in accordance with guidance provided by the Securities and Exchange Commission. Accordingly, the condensed financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. In the opinion of management, the accompanying unaudited condensed consolidated financial statements reflect all adjustments considered necessary for a fair presentation. Transactions between the subsidiaries have been eliminated. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and footnotes thereto for the fiscal years ended December 31, 2013 and 2012. Operating results for the three and nine months ended September 30, 2014 are not necessarily indicative of the results that may be expected for the year ending December 31, 2014. Furthermore, the acquisition of National Bancshares, Inc. during the fourth quarter of 2013 may impact the comparability of year to date 2014 versus year to date 2013 comparable information. The Company has three reportable segments consisting of Factoring, Banking, and Corporate. The Company’s Chief Executive Officer uses segment results to make operating and strategic decisions. The consolidated financial statements as of and for the year ended December 31, 2013 and accompanying notes and other detailed information can be found in the Company’s Registration Statement on Form S-1 filed with the Securities and Exchange Commission and declared effective on November 6, 2014.
Adoption of New Accounting Standards	Adoption of New Accounting Standards: On January 1, 2013 the Company adopted Accounting Standards Update (ASU) 2013-02, “Comprehensive Income: Reporting of Amounts Reclassified out of Accumulated Other Comprehensive Income.” ASU 2013-02 requires the Company to report the effect of significant reclassifications out of accumulated other comprehensive income on the respective line items in the Company’s consolidated statement of comprehensive income if the amount being reclassified is required under U.S. GAAP to be reclassified in its entirety to net income. The adoption of this ASU is reflected in the accompanying consolidated statements of comprehensive income.
Newly Issued But Not Yet Effective Accounting Standards	Newly Issued, But Not Yet Effective Accounting Standards: In January of 2014, FASB issued ASU 2014-04, “Receivables – Troubled Debt Restructurings by Creditors.” ASU 2014-04 affects all creditors when an in substance repossession or foreclosure of residential real estate property collateralizing a consumer mortgage loan in satisfaction of a receivable has occurred. The ASU is effective for fiscal periods beginning after December 15, 2014. Adoption of this ASU is not expected to have a material impact on the Company’s financial statements. On May 28, 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers”, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in GAAP when it becomes effective. The new standard is effective for the Company on January 1, 2017. Early application is not permitted. The standard permits the use of either the retrospective or cumulative effect transition method. The Company is evaluating the effect that ASU 2014-09 will have on its consolidated financial statements and related disclosures. The Company has not yet selected a transition method nor has it determined the effect of the standard on its ongoing financial reporting.