Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Summary of Shares Repurchased Under Stock Purchase Program

The following table is a summary of the shares under the program:

	Six Months Ended June 30,
	2019		2018
Number of shares repurchased		—		—
Average price of shares repurchased	$	—	$	—
Shares remaining to be repurchased		148,736		300,000

Required Capital Amounts and Company's Respective Ratios

The actual and required capital amounts and ratios are shown in the following table:

				Required							To Be Well
				For Capital				With			Capitalized Under
				Adequacy				Capital Conservation			Prompt Corrective
	Actual			Purposes				Buffer			Action Provisions
	Amount		Ratio	Amount		Ratio		Amount		Ratio	Amount		Ratio
	(Dollars in thousands)
As of June 30, 2019:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	939,223	16.71%	$	449,674		8.00%	$	590,197	10.50%	N/A		N/A
BancFirst		813,627	14.50%		448,824		8.00%		589,082	10.50%	$	561,030		10.00%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	858,115	15.27%	$	252,942		4.50%	$	393,465	7.00%	N/A		N/A
BancFirst		738,519	13.16%		252,464		4.50%		392,721	7.00%	$	364,670		6.50%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	884,115	15.73%	$	337,256		6.00%	$	477,779	8.50%	N/A		N/A
BancFirst		758,519	13.52%		336,618		6.00%		476,876	8.50%	$	448,824		8.00%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	884,115	11.64%	$	303,864		4.00%	N/A		N/A	N/A		N/A
BancFirst		758,519	10.01%		303,252		4.00%	N/A		N/A	$	379,065		5.00%