Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2020

Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

The actual capital amounts and ratios for the Company and TBK Bank are presented in the following table.

(Dollars in thousands)	Actual			Minimum for Capital Adequacy Purposes			To Be Well Capitalized Under Prompt Corrective Action Provisions
September 30, 2020	Amount		Ratio	Amount		Ratio	Amount		Ratio
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	689,050	12.9%	$	427,318	8.0%	N/A		N/A
TBK Bank, SSB	$	624,406	11.9%	$	419,769	8.0%	$	524,711	10.0%
Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	549,445	10.3%	$	320,065	6.0%	N/A		N/A
TBK Bank, SSB	$	573,637	10.9%	$	315,763	6.0%	$	421,018	8.0%
Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	464,501	8.7%	$	240,259	4.5%	N/A		N/A
TBK Bank, SSB	$	573,637	10.9%	$	236,823	4.5%	$	342,077	6.5%
Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	549,445	10.8%	$	203,498	4.0%	N/A		N/A
TBK Bank, SSB	$	573,637	11.3%	$	203,057	4.0%	$	253,822	5.0%
As of December 31, 2019
Total capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	604,832	12.8%	$	378,020	8.0%	N/A		N/A
TBK Bank, SSB	$	555,213	12.0%	$	370,142	8.0%	$	462,678	10.0%
Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	487,775	10.3%	$	284,141	6.0%	N/A		N/A
TBK Bank, SSB	$	525,490	11.4%	$	276,574	6.0%	$	368,765	8.0%
Common equity Tier 1 capital (to risk weighted assets)
Triumph Bancorp, Inc.	$	448,209	9.5%	$	212,310	4.5%	N/A		N/A
TBK Bank, SSB	$	525,490	11.4%	$	207,430	4.5%	$	299,621	6.5%
Tier 1 capital (to average assets)
Triumph Bancorp, Inc.	$	487,775	10.0%	$	195,110	4.0%	N/A		N/A
TBK Bank, SSB	$	525,490	10.9%	$	192,840	4.0%	$	241,050	5.0%