Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-17-153231-index-headers.html | 2017-05-02 10:37:05 | |
| 0001193125-17-153231-index.html | 2017-05-02 10:37:05 | |
| 0001193125-17-153231.txt | 2017-05-02 10:37:05 | |
 0001193125-17-153231-xbrl.zip | 184554 | 2017-05-02 10:37:05 |
| d370116d10q.htm | 969888 | 2017-05-02 10:37:05 |
| d370116dex311.htm | 6477 | 2017-05-02 10:37:05 |
| d370116dex312.htm | 6514 | 2017-05-02 10:37:05 |
| d370116dex321.htm | 4005 | 2017-05-02 10:37:05 |
| d370116dex322.htm | 4015 | 2017-05-02 10:37:05 |
| ffin-20170331.xml | 1816067 | 2017-05-02 10:37:05 |
| ffin-20170331.xsd | 55683 | 2017-05-02 10:37:05 |
| ffin-20170331_cal.xml | 91080 | 2017-05-02 10:37:05 |
| ffin-20170331_def.xml | 213807 | 2017-05-02 10:37:05 |
| ffin-20170331_lab.xml | 451145 | 2017-05-02 10:37:05 |
| ffin-20170331_pre.xml | 358388 | 2017-05-02 10:37:05 |
| FilingSummary.xml | 37433 | 2017-05-02 10:37:05 |
| Financial_Report.xlsx | 88086 | 2017-05-02 10:37:05 |
| R1.htm | 21949 | 2017-05-02 10:37:05 |
| R10.htm | 11262 | 2017-05-02 10:37:05 |
| R11.htm | 5590 | 2017-05-02 10:37:05 |
| R12.htm | 7416 | 2017-05-02 10:37:05 |
| R13.htm | 101569 | 2017-05-02 10:37:05 |
| R14.htm | 301366 | 2017-05-02 10:37:05 |
| R15.htm | 14092 | 2017-05-02 10:37:05 |
| R16.htm | 6497 | 2017-05-02 10:37:05 |
| R17.htm | 10881 | 2017-05-02 10:37:05 |
| R18.htm | 7240 | 2017-05-02 10:37:05 |
| R19.htm | 101537 | 2017-05-02 10:37:05 |
| R2.htm | 86476 | 2017-05-02 10:37:05 |
| R20.htm | 24202 | 2017-05-02 10:37:05 |
| R21.htm | 75042 | 2017-05-02 10:37:05 |
| R22.htm | 91217 | 2017-05-02 10:37:05 |
| R23.htm | 295305 | 2017-05-02 10:37:05 |
| R24.htm | 12034 | 2017-05-02 10:37:05 |
| R25.htm | 84530 | 2017-05-02 10:37:05 |
| R26.htm | 104959 | 2017-05-02 10:37:05 |
| R27.htm | 12682 | 2017-05-02 10:37:05 |
| R28.htm | 7560 | 2017-05-02 10:37:05 |
| R29.htm | 36409 | 2017-05-02 10:37:05 |
| R3.htm | 13636 | 2017-05-02 10:37:05 |
| R30.htm | 34128 | 2017-05-02 10:37:05 |
| R31.htm | 36545 | 2017-05-02 10:37:05 |
| R32.htm | 40427 | 2017-05-02 10:37:05 |
| R33.htm | 37249 | 2017-05-02 10:37:05 |
| R34.htm | 14111 | 2017-05-02 10:37:05 |
| R35.htm | 11608 | 2017-05-02 10:37:05 |
| R36.htm | 11927 | 2017-05-02 10:37:05 |
| R37.htm | 6850 | 2017-05-02 10:37:05 |
| R38.htm | 14217 | 2017-05-02 10:37:05 |
| R39.htm | 32534 | 2017-05-02 10:37:05 |
| R4.htm | 91767 | 2017-05-02 10:37:05 |
| R40.htm | 7440 | 2017-05-02 10:37:05 |
| R41.htm | 35578 | 2017-05-02 10:37:05 |
| R42.htm | 47726 | 2017-05-02 10:37:05 |
| R43.htm | 24354 | 2017-05-02 10:37:05 |
| R44.htm | 27052 | 2017-05-02 10:37:05 |
| R45.htm | 21714 | 2017-05-02 10:37:05 |
| R46.htm | 17629 | 2017-05-02 10:37:05 |
| R47.htm | 22598 | 2017-05-02 10:37:05 |
| R48.htm | 11529 | 2017-05-02 10:37:05 |
| R49.htm | 13406 | 2017-05-02 10:37:05 |
| R5.htm | 6978 | 2017-05-02 10:37:05 |
| R50.htm | 10094 | 2017-05-02 10:37:05 |
| R51.htm | 34212 | 2017-05-02 10:37:05 |
| R52.htm | 8375 | 2017-05-02 10:37:05 |
| R53.htm | 19715 | 2017-05-02 10:37:05 |
| R54.htm | 44556 | 2017-05-02 10:37:05 |
| R55.htm | 7554 | 2017-05-02 10:37:05 |
| R56.htm | 50940 | 2017-05-02 10:37:05 |
| R6.htm | 20325 | 2017-05-02 10:37:05 |
| R7.htm | 55914 | 2017-05-02 10:37:05 |
| R8.htm | 4676 | 2017-05-02 10:37:05 |
| R9.htm | 82260 | 2017-05-02 10:37:05 |
| report.css | 2767 | 2017-05-02 10:37:05 |
| Show.js | 1410 | 2017-05-02 10:37:05 |