Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000036966-24-000094-index-headers.html | 2024-11-07 16:39:44 | |
| 0000036966-24-000094-index.html | 2024-11-07 16:39:44 | |
| 0000036966-24-000094.txt | 2024-11-07 16:39:44 | |
 0000036966-24-000094-xbrl.zip | 639153 | 2024-11-07 16:39:44 |
| a3q24xexh10x1xdneratefor20.htm | 4954 | 2024-11-07 16:39:44 |
| exhibit31a3q2024.htm | 10225 | 2024-11-07 16:39:44 |
| exhibit31b3q2024.htm | 10142 | 2024-11-07 16:39:44 |
| exhibit32a3q2024.htm | 4673 | 2024-11-07 16:39:44 |
| exhibit32b3q2024.htm | 4641 | 2024-11-07 16:39:44 |
| fhn-20240930.htm | 6492480 | 2024-11-07 16:39:44 |
| fhn-20240930.xsd | 105150 | 2024-11-07 16:39:44 |
| fhn-20240930_cal.xml | 162660 | 2024-11-07 16:39:44 |
| fhn-20240930_def.xml | 689795 | 2024-11-07 16:39:44 |
 fhn-20240930_g1.jpg | 18068 | 2024-11-07 16:39:44 |
 fhn-20240930_g2.jpg | 5201 | 2024-11-07 16:39:44 |
| fhn-20240930_htm.xml | 7256211 | 2024-11-07 16:39:44 |
| fhn-20240930_lab.xml | 1209345 | 2024-11-07 16:39:44 |
| fhn-20240930_pre.xml | 979544 | 2024-11-07 16:39:44 |
| FilingSummary.xml | 62722 | 2024-11-07 16:39:44 |
| Financial_Report.xlsx | 231585 | 2024-11-07 16:39:44 |
 firsthorizonimage.jpg | 5201 | 2024-11-07 16:39:44 |
| MetaLinks.json | 1559535 | 2024-11-07 16:39:44 |
| R1.htm | 65502 | 2024-11-07 16:39:44 |
| R10.htm | 135484 | 2024-11-07 16:39:44 |
| R11.htm | 703081 | 2024-11-07 16:39:44 |
| R12.htm | 207788 | 2024-11-07 16:39:44 |
| R13.htm | 27589 | 2024-11-07 16:39:44 |
| R14.htm | 46565 | 2024-11-07 16:39:44 |
| R15.htm | 46540 | 2024-11-07 16:39:44 |
| R16.htm | 109483 | 2024-11-07 16:39:44 |
| R17.htm | 54944 | 2024-11-07 16:39:44 |
| R18.htm | 16792 | 2024-11-07 16:39:44 |
| R19.htm | 27915 | 2024-11-07 16:39:44 |
| R2.htm | 123765 | 2024-11-07 16:39:44 |
| R20.htm | 233713 | 2024-11-07 16:39:44 |
| R21.htm | 79272 | 2024-11-07 16:39:44 |
| R22.htm | 226434 | 2024-11-07 16:39:44 |
| R23.htm | 62349 | 2024-11-07 16:39:44 |
| R24.htm | 701279 | 2024-11-07 16:39:44 |
| R25.htm | 14828 | 2024-11-07 16:39:44 |
| R26.htm | 8479 | 2024-11-07 16:39:44 |
| R27.htm | 58757 | 2024-11-07 16:39:44 |
| R28.htm | 134257 | 2024-11-07 16:39:44 |
| R29.htm | 694342 | 2024-11-07 16:39:44 |
| R3.htm | 19705 | 2024-11-07 16:39:44 |
| R30.htm | 202731 | 2024-11-07 16:39:44 |
| R31.htm | 27185 | 2024-11-07 16:39:44 |
| R32.htm | 49410 | 2024-11-07 16:39:44 |
| R33.htm | 42515 | 2024-11-07 16:39:44 |
| R34.htm | 110681 | 2024-11-07 16:39:44 |
| R35.htm | 56810 | 2024-11-07 16:39:44 |
| R36.htm | 21759 | 2024-11-07 16:39:44 |
| R37.htm | 222560 | 2024-11-07 16:39:44 |
| R38.htm | 68414 | 2024-11-07 16:39:44 |
| R39.htm | 212323 | 2024-11-07 16:39:44 |
| R4.htm | 159291 | 2024-11-07 16:39:44 |
| R40.htm | 63501 | 2024-11-07 16:39:44 |
| R41.htm | 681189 | 2024-11-07 16:39:44 |
| R42.htm | 9451 | 2024-11-07 16:39:44 |
| R43.htm | 46092 | 2024-11-07 16:39:44 |
| R44.htm | 80641 | 2024-11-07 16:39:44 |
| R45.htm | 20367 | 2024-11-07 16:39:44 |
| R46.htm | 57512 | 2024-11-07 16:39:44 |
| R47.htm | 60686 | 2024-11-07 16:39:44 |
| R48.htm | 44392 | 2024-11-07 16:39:44 |
| R49.htm | 68487 | 2024-11-07 16:39:44 |
| R5.htm | 53469 | 2024-11-07 16:39:44 |
| R50.htm | 92294 | 2024-11-07 16:39:44 |
| R51.htm | 97943 | 2024-11-07 16:39:44 |
| R52.htm | 69301 | 2024-11-07 16:39:44 |
| R53.htm | 30754 | 2024-11-07 16:39:44 |
| R54.htm | 3982 | 2024-11-07 16:39:44 |
| R55.htm | 102958 | 2024-11-07 16:39:44 |
| R56.htm | 46046 | 2024-11-07 16:39:44 |
| R57.htm | 13022 | 2024-11-07 16:39:44 |
| R58.htm | 11665 | 2024-11-07 16:39:44 |
| R59.htm | 9315 | 2024-11-07 16:39:44 |
| R6.htm | 221592 | 2024-11-07 16:39:44 |
| R60.htm | 17418 | 2024-11-07 16:39:44 |
| R61.htm | 20594 | 2024-11-07 16:39:44 |
| R62.htm | 57331 | 2024-11-07 16:39:44 |
| R63.htm | 53425 | 2024-11-07 16:39:44 |
| R64.htm | 67270 | 2024-11-07 16:39:44 |
| R65.htm | 38936 | 2024-11-07 16:39:44 |
| R66.htm | 82524 | 2024-11-07 16:39:44 |
| R67.htm | 12119 | 2024-11-07 16:39:44 |
| R68.htm | 12446 | 2024-11-07 16:39:44 |
| R69.htm | 15425 | 2024-11-07 16:39:44 |
| R7.htm | 9583 | 2024-11-07 16:39:44 |
| R70.htm | 17552 | 2024-11-07 16:39:44 |
| R71.htm | 91459 | 2024-11-07 16:39:44 |
| R72.htm | 52542 | 2024-11-07 16:39:44 |
| R73.htm | 12789 | 2024-11-07 16:39:44 |
| R74.htm | 13917 | 2024-11-07 16:39:44 |
| R75.htm | 73334 | 2024-11-07 16:39:44 |
| R76.htm | 48516 | 2024-11-07 16:39:44 |
| R77.htm | 17924 | 2024-11-07 16:39:44 |
| R78.htm | 18170 | 2024-11-07 16:39:44 |
| R79.htm | 10937 | 2024-11-07 16:39:44 |
| R8.htm | 119738 | 2024-11-07 16:39:44 |
| R80.htm | 24914 | 2024-11-07 16:39:44 |
| R81.htm | 24118 | 2024-11-07 16:39:44 |
| R82.htm | 38817 | 2024-11-07 16:39:44 |
| R83.htm | 37747 | 2024-11-07 16:39:44 |
| R84.htm | 18871 | 2024-11-07 16:39:44 |
| R85.htm | 20036 | 2024-11-07 16:39:44 |
| R86.htm | 26666 | 2024-11-07 16:39:44 |
| R87.htm | 148132 | 2024-11-07 16:39:44 |
| R88.htm | 51471 | 2024-11-07 16:39:44 |
| R89.htm | 19210 | 2024-11-07 16:39:44 |
| R9.htm | 23226 | 2024-11-07 16:39:44 |
| R90.htm | 30617 | 2024-11-07 16:39:44 |
| R91.htm | 14411 | 2024-11-07 16:39:44 |
| R92.htm | 116648 | 2024-11-07 16:39:44 |
| R93.htm | 24210 | 2024-11-07 16:39:44 |
| R94.htm | 8830 | 2024-11-07 16:39:44 |
| R95.htm | 218219 | 2024-11-07 16:39:44 |
| report.css | 2768 | 2024-11-07 16:39:44 |
| Show.js | 1086 | 2024-11-07 16:39:44 |