Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2016

Equity [Abstract]

Summary of Shares Repurchased Under Stock Purchase Program

The following table is a summary of the shares under the program. All share repurchased in 2016 were purchased in the first three months of the year:

	Nine Months Ended September 30,
	2016		2015
Number of shares repurchased		100,000		—
Average price of shares repurchased	$	55.23		—
Shares remaining to be repurchased		150,000		194,723

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 September 30, 2016:
Total Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	708,421		15.06%	$	376,350		8.00%	$	405,752		8.625%	N/A		N/A
BancFirst		643,237		13.69%		375,916		8.00%		405,284		8.625%	$	469,895		10.00%
Common Equity Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	629,360		13.38%	$	211,697		4.50%	$	241,099		5.125%	N/A		N/A
BancFirst		575,176		12.24%		211,453		4.50%		240,821		5.125%	$	305,432		6.50%
Tier 1 Capital
(to Risk Weighted Assets)-
BancFirst Corporation	$	660,360		14.04%	$	282,262		6.00%	$	311,665		6.625%	N/A		N/A
BancFirst		595,176		12.67%		281,937		6.00%		311,305		6.625%	$	375,916		8.00%
Tier 1 Capital
(to Total Assets)-
BancFirst Corporation	$	660,360		9.89%	$	267,195		4.00%	N/A		N/A		N/A		N/A
BancFirst		595,176		8.92%		266,755		4.00%	N/A		N/A		$	333,444		5.00%