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Document And Entity Information
Oct. 16, 2019
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Oct. 16, 2019
Entity Registrant Name TRIUMPH BANCORP, INC.
Entity Central Index Key 0001539638
Entity Emerging Growth Company false
Entity File Number 001-36722
Entity Incorporation, State or Country Code TX
Entity Tax Identification Number 20-0477066
Entity Address, Address Line One 12700 Park Central Drive, Suite 1700
Entity Address, City or Town Dallas
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75251
City Area Code 214
Local Phone Number 365-6900
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of each class Common stock, par value $0.01 per share
Trading Symbol TBK
Name of each exchange on which registered NASDAQ