Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001564590-20-052332-index-headers.html | 2020-11-09 12:02:22 | |
| 0001564590-20-052332-index.html | 2020-11-09 12:02:22 | |
| 0001564590-20-052332.txt | 2020-11-09 12:02:22 | |
 0001564590-20-052332-xbrl.zip | 305890 | 2020-11-09 12:02:22 |
| banf-10q_20200930.htm | 6721358 | 2020-11-09 12:02:22 |
| banf-10q_20200930_htm.xml | 8763833 | 2020-11-09 12:02:22 |
| banf-20200930.xsd | 77632 | 2020-11-09 12:02:22 |
| banf-20200930_cal.xml | 94706 | 2020-11-09 12:02:22 |
| banf-20200930_def.xml | 361271 | 2020-11-09 12:02:22 |
| banf-20200930_lab.xml | 634065 | 2020-11-09 12:02:22 |
| banf-20200930_pre.xml | 574309 | 2020-11-09 12:02:22 |
| banf-ex311_8.htm | 14876 | 2020-11-09 12:02:22 |
| banf-ex312_9.htm | 15077 | 2020-11-09 12:02:22 |
| banf-ex32_6.htm | 7893 | 2020-11-09 12:02:22 |
| FilingSummary.xml | 52953 | 2020-11-09 12:02:22 |
| Financial_Report.xlsx | 144358 | 2020-11-09 12:02:22 |
| MetaLinks.json | 905356 | 2020-11-09 12:02:22 |
| R1.htm | 52363 | 2020-11-09 12:02:22 |
| R10.htm | 15038 | 2020-11-09 12:02:22 |
| R11.htm | 297144 | 2020-11-09 12:02:22 |
| R12.htm | 1792087 | 2020-11-09 12:02:22 |
| R13.htm | 122979 | 2020-11-09 12:02:22 |
| R14.htm | 48070 | 2020-11-09 12:02:22 |
| R15.htm | 181290 | 2020-11-09 12:02:22 |
| R16.htm | 317606 | 2020-11-09 12:02:22 |
| R17.htm | 152033 | 2020-11-09 12:02:22 |
| R18.htm | 317607 | 2020-11-09 12:02:22 |
| R19.htm | 283954 | 2020-11-09 12:02:22 |
| R2.htm | 86960 | 2020-11-09 12:02:22 |
| R20.htm | 159291 | 2020-11-09 12:02:22 |
| R21.htm | 117152 | 2020-11-09 12:02:22 |
| R22.htm | 301760 | 2020-11-09 12:02:22 |
| R23.htm | 1792065 | 2020-11-09 12:02:22 |
| R24.htm | 124104 | 2020-11-09 12:02:22 |
| R25.htm | 45886 | 2020-11-09 12:02:22 |
| R26.htm | 186815 | 2020-11-09 12:02:22 |
| R27.htm | 310819 | 2020-11-09 12:02:22 |
| R28.htm | 152776 | 2020-11-09 12:02:22 |
| R29.htm | 300123 | 2020-11-09 12:02:22 |
| R3.htm | 22823 | 2020-11-09 12:02:22 |
| R30.htm | 278541 | 2020-11-09 12:02:22 |
| R31.htm | 55748 | 2020-11-09 12:02:22 |
| R32.htm | 106684 | 2020-11-09 12:02:22 |
| R33.htm | 28851 | 2020-11-09 12:02:22 |
| R34.htm | 37160 | 2020-11-09 12:02:22 |
| R35.htm | 20685 | 2020-11-09 12:02:22 |
| R36.htm | 27794 | 2020-11-09 12:02:22 |
| R37.htm | 62390 | 2020-11-09 12:02:22 |
| R38.htm | 5037 | 2020-11-09 12:02:22 |
| R39.htm | 31750 | 2020-11-09 12:02:22 |
| R4.htm | 123734 | 2020-11-09 12:02:22 |
| R40.htm | 7823 | 2020-11-09 12:02:22 |
| R41.htm | 57094 | 2020-11-09 12:02:22 |
| R42.htm | 7340 | 2020-11-09 12:02:22 |
| R43.htm | 40263 | 2020-11-09 12:02:22 |
| R44.htm | 139367 | 2020-11-09 12:02:22 |
| R45.htm | 215760 | 2020-11-09 12:02:22 |
| R46.htm | 99948 | 2020-11-09 12:02:22 |
| R47.htm | 10051 | 2020-11-09 12:02:22 |
| R48.htm | 35927 | 2020-11-09 12:02:22 |
| R49.htm | 9073 | 2020-11-09 12:02:22 |
| R5.htm | 8813 | 2020-11-09 12:02:22 |
| R50.htm | 14807 | 2020-11-09 12:02:22 |
| R51.htm | 18326 | 2020-11-09 12:02:22 |
| R52.htm | 10104 | 2020-11-09 12:02:22 |
| R53.htm | 20576 | 2020-11-09 12:02:22 |
| R54.htm | 19990 | 2020-11-09 12:02:22 |
| R55.htm | 16237 | 2020-11-09 12:02:22 |
| R56.htm | 41931 | 2020-11-09 12:02:22 |
| R57.htm | 34503 | 2020-11-09 12:02:22 |
| R58.htm | 9761 | 2020-11-09 12:02:22 |
| R59.htm | 8600 | 2020-11-09 12:02:22 |
| R6.htm | 51153 | 2020-11-09 12:02:22 |
| R60.htm | 4462 | 2020-11-09 12:02:22 |
| R61.htm | 18110 | 2020-11-09 12:02:22 |
| R62.htm | 6104 | 2020-11-09 12:02:22 |
| R63.htm | 8497 | 2020-11-09 12:02:22 |
| R64.htm | 86313 | 2020-11-09 12:02:22 |
| R65.htm | 26987 | 2020-11-09 12:02:22 |
| R66.htm | 30525 | 2020-11-09 12:02:22 |
| R67.htm | 5578 | 2020-11-09 12:02:22 |
| R68.htm | 27019 | 2020-11-09 12:02:22 |
| R69.htm | 12246 | 2020-11-09 12:02:22 |
| R7.htm | 7174 | 2020-11-09 12:02:22 |
| R70.htm | 17190 | 2020-11-09 12:02:22 |
| R71.htm | 14638 | 2020-11-09 12:02:22 |
| R72.htm | 53606 | 2020-11-09 12:02:22 |
| R73.htm | 4859 | 2020-11-09 12:02:22 |
| R74.htm | 40976 | 2020-11-09 12:02:22 |
| R8.htm | 119646 | 2020-11-09 12:02:22 |
| R9.htm | 154330 | 2020-11-09 12:02:22 |
| report.css | 2767 | 2020-11-09 12:02:22 |
| Show.js | 1085 | 2020-11-09 12:02:22 |