XML 38 R25.htm IDEA: XBRL DOCUMENT
v3.19.2

Stock-Based Compensation (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Activity Under Stock Option Plan | The following table is a summary of the activity under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:
|  |  |  |  |  |  |  |  |  | Wgtd. Avg. |  |  |  |
|  |  |  |  |  | Wgtd. Avg. |  |  | Remaining |  | Aggregate |
|  |  |  |  |  | Exercise |  |  | Contractual |  | Intrinsic |
|  | Options |  |  | Price |  |  | Term |  | Value |
|  | (Dollars in thousands, except option data) |
Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2018 |  |  | 1,216,700 |  |  | $ | 28.48 |  |  |  |  |  |  |
Options granted |  |  | 40,000 |  |  |  | 55.38 |  |  |  |  |  |  |
Options exercised |  |  | (27,300 | ) |  |  | 22.37 |  |  |  |  |  |  |
Options canceled, forfeited, or expired |  |  | (22,500 | ) |  |  | 51.83 |  |  |  |  |  |  |
Outstanding at June 30, 2019 |  |  | 1,206,900 |  |  |  | 29.07 |  |  | 9.20 Yrs |  | $ | 32,090 |
Exercisable at June 30, 2019 |  |  | 648,400 |  |  |  | 22.49 |  |  | 7.08 Yrs |  | $ | 21,506 |
Options Exercised Under Stock Option Plan | The following table has additional information regarding options exercised under both the BancFirst ISOP and the BancFirst Directors’ Stock Option Plan:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (Dollars in thousands) |  |  | (Dollars in thousands) |
Total intrinsic value of options exercised |  | $ | 759 |  |  | $ | 967 |  |  | $ | 904 |  |  | $ | 3,827 |
Cash received from options exercised |  |  | 455 |  |  |  | 411 |  |  |  | 611 |  |  |  | 1,644 |
Tax benefit realized from options exercised |  |  | 193 |  |  |  | 246 |  |  |  | 230 |  |  |  | 975 |
Stock-based Employee Compensation Expense | The following table is a summary of the Company’s recorded stock-based compensation expense:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
|  | (Dollars in thousands) |  |  | (Dollars in thousands) |
Stock-based compensation expense |  | $ | 367 |  |  | $ | 322 |  |  | $ | 541 |  |  | $ | 628 |
Tax benefit |  |  | 94 |  |  |  | 82 |  |  |  | 138 |  |  |  | 160 |
Stock-based compensation expense, net of tax |  | $ | 273 |  |  | $ | 240 |  |  | $ | 403 |  |  | $ | 468 |
Unearned Stock-based Compensation Expense | The Company will continue to amortize the unearned stock-based compensation expense over the remaining vesting period of approximately seven years. The following table shows the unearned stock-based compensation expense:
|  | June 30, 2019 |
|  | (Dollars in thousands) |
Unearned stock-based compensation expense |  | $ | 3,198 |
Assumptions Used for Computing Stock-Based Compensation Expense | The following table shows the assumptions used for computing stock-based compensation expense under the fair value method on options granted during the periods presented:
|  | Six Months Ended June 30, |
|  | 2019 |  |  | 2018 |
Weighted average grant-date fair value per share of options granted |  | $ | 13.67 |  |  | $ | 13.98 |
Risk-free interest rate |  | 2.62 to 2.76% |  |  | 2.55 to 2.92% |
Dividend yield |  | 2.00% |  |  | 2.00% |
Stock price volatility |  | 22.93 to 22.96% |  |  | 23.05 to 23.29% |
Expected term |  | 10 Yrs |  |  | 10 Yrs |
Summary of Accumulated Stock Units | A summary of the accumulated stock units is as follows:
|  | June 30, |  |  | December 31, |
|  | 2019 |  |  | 2018 |
Accumulated stock units |  |  | 139,862 |  |  |  | 143,347 |
Average price |  | $ | 26.19 |  |  | $ | 24.91 |

X
- Definition Summary of accumulated stock under board fees deferred plan. + References No definition available. + Details
Name: | banf_SummaryOfAccumulatedStockUnderBoardFeesDeferredPlanTableTextBlock
Namespace Prefix: | banf_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the total intrinsic value of options exercised (or share units converted), share-based liabilities paid, and the total fair value of shares vested during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGrantDateIntrinsicValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of cost not yet recognized and weighted-average period over which cost is expected to be recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
Name: | us-gaap_ScheduleOfUnrecognizedCompensationCostNonvestedAwardsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration