Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-21-151111-index-headers.html | 2021-05-05 11:00:14 | |
| 0001193125-21-151111-index.html | 2021-05-05 11:00:14 | |
| 0001193125-21-151111.txt | 2021-05-05 11:00:14 | |
 0001193125-21-151111-xbrl.zip | 272278 | 2021-05-05 11:00:14 |
| d156767d10q.htm | 3873203 | 2021-05-05 11:00:14 |
| d156767d10q_htm.xml | 5339124 | 2021-05-05 11:00:14 |
| d156767dex311.htm | 6992 | 2021-05-05 11:00:14 |
| d156767dex312.htm | 7098 | 2021-05-05 11:00:14 |
| d156767dex321.htm | 4643 | 2021-05-05 11:00:14 |
| d156767dex322.htm | 4677 | 2021-05-05 11:00:14 |
| ffin-20210331.xsd | 59045 | 2021-05-05 11:00:14 |
| ffin-20210331_cal.xml | 79180 | 2021-05-05 11:00:14 |
| ffin-20210331_def.xml | 346358 | 2021-05-05 11:00:14 |
| ffin-20210331_lab.xml | 525075 | 2021-05-05 11:00:14 |
| ffin-20210331_pre.xml | 498083 | 2021-05-05 11:00:14 |
| FilingSummary.xml | 41882 | 2021-05-05 11:00:14 |
| Financial_Report.xlsx | 131334 | 2021-05-05 11:00:14 |
| MetaLinks.json | 764223 | 2021-05-05 11:00:14 |
| R1.htm | 52190 | 2021-05-05 11:00:14 |
| R10.htm | 125313 | 2021-05-05 11:00:14 |
| R11.htm | 1419544 | 2021-05-05 11:00:14 |
| R12.htm | 6673 | 2021-05-05 11:00:14 |
| R13.htm | 25067 | 2021-05-05 11:00:14 |
| R14.htm | 15821 | 2021-05-05 11:00:14 |
| R15.htm | 7610 | 2021-05-05 11:00:14 |
| R16.htm | 36691 | 2021-05-05 11:00:14 |
| R17.htm | 161939 | 2021-05-05 11:00:14 |
| R18.htm | 22970 | 2021-05-05 11:00:14 |
| R19.htm | 151387 | 2021-05-05 11:00:14 |
| R2.htm | 84819 | 2021-05-05 11:00:14 |
| R20.htm | 26638 | 2021-05-05 11:00:14 |
| R21.htm | 124196 | 2021-05-05 11:00:14 |
| R22.htm | 1431621 | 2021-05-05 11:00:14 |
| R23.htm | 21507 | 2021-05-05 11:00:14 |
| R24.htm | 15546 | 2021-05-05 11:00:14 |
| R25.htm | 33011 | 2021-05-05 11:00:14 |
| R26.htm | 148780 | 2021-05-05 11:00:14 |
| R27.htm | 18962 | 2021-05-05 11:00:14 |
| R28.htm | 67128 | 2021-05-05 11:00:14 |
| R29.htm | 33293 | 2021-05-05 11:00:14 |
| R3.htm | 14689 | 2021-05-05 11:00:14 |
| R30.htm | 25601 | 2021-05-05 11:00:14 |
| R31.htm | 30221 | 2021-05-05 11:00:14 |
| R32.htm | 30088 | 2021-05-05 11:00:14 |
| R33.htm | 34511 | 2021-05-05 11:00:14 |
| R34.htm | 60158 | 2021-05-05 11:00:14 |
| R35.htm | 12126 | 2021-05-05 11:00:14 |
| R36.htm | 7499 | 2021-05-05 11:00:14 |
| R37.htm | 18876 | 2021-05-05 11:00:14 |
| R38.htm | 32928 | 2021-05-05 11:00:14 |
| R39.htm | 57902 | 2021-05-05 11:00:14 |
| R4.htm | 104412 | 2021-05-05 11:00:14 |
| R40.htm | 107162 | 2021-05-05 11:00:14 |
| R41.htm | 56799 | 2021-05-05 11:00:14 |
| R42.htm | 64438 | 2021-05-05 11:00:14 |
| R43.htm | 149616 | 2021-05-05 11:00:14 |
| R44.htm | 34461 | 2021-05-05 11:00:14 |
| R45.htm | 115371 | 2021-05-05 11:00:14 |
| R46.htm | 29305 | 2021-05-05 11:00:14 |
| R47.htm | 34777 | 2021-05-05 11:00:14 |
| R48.htm | 6875 | 2021-05-05 11:00:14 |
| R49.htm | 16895 | 2021-05-05 11:00:14 |
| R5.htm | 36749 | 2021-05-05 11:00:14 |
| R50.htm | 13104 | 2021-05-05 11:00:14 |
| R51.htm | 10848 | 2021-05-05 11:00:14 |
| R52.htm | 50911 | 2021-05-05 11:00:14 |
| R53.htm | 21289 | 2021-05-05 11:00:14 |
| R54.htm | 21811 | 2021-05-05 11:00:14 |
| R55.htm | 23069 | 2021-05-05 11:00:14 |
| R56.htm | 65561 | 2021-05-05 11:00:14 |
| R57.htm | 7901 | 2021-05-05 11:00:14 |
| R58.htm | 10821 | 2021-05-05 11:00:14 |
| R59.htm | 67123 | 2021-05-05 11:00:14 |
| R6.htm | 59067 | 2021-05-05 11:00:14 |
| R60.htm | 16411 | 2021-05-05 11:00:14 |
| R61.htm | 6464 | 2021-05-05 11:00:14 |
| R62.htm | 6109 | 2021-05-05 11:00:14 |
| R63.htm | 27641 | 2021-05-05 11:00:14 |
| R7.htm | 4654 | 2021-05-05 11:00:14 |
| R8.htm | 89057 | 2021-05-05 11:00:14 |
| R9.htm | 92245 | 2021-05-05 11:00:14 |
| report.css | 2767 | 2021-05-05 11:00:14 |
| Show.js | 1085 | 2021-05-05 11:00:14 |