Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000036966-21-000024-index-headers.html | 2021-05-06 16:43:00 | |
| 0000036966-21-000024-index.html | 2021-05-06 16:43:00 | |
| 0000036966-21-000024.txt | 2021-05-06 16:43:00 | |
 0000036966-21-000024-xbrl.zip | 750051 | 2021-05-06 16:43:00 |
| a1q20xexh10x1xexecpsus2020.htm | 30158 | 2021-05-06 16:43:00 |
| a1q21xexh10x2xgrantnoticex.htm | 14956 | 2021-05-06 16:43:00 |
| a1q21xexh10x3xgrantnoticex.htm | 15357 | 2021-05-06 16:43:00 |
| a1q21xexh10x4xdirectorcomp.htm | 52929 | 2021-05-06 16:43:00 |
| exhibit31a1q2021.htm | 10240 | 2021-05-06 16:43:00 |
| exhibit31b1q2021.htm | 10195 | 2021-05-06 16:43:00 |
| exhibit32a1q2021.htm | 4681 | 2021-05-06 16:43:00 |
| exhibit32b1q2021.htm | 4712 | 2021-05-06 16:43:00 |
| fhn-20210331.htm | 6272923 | 2021-05-06 16:43:00 |
| fhn-20210331.xsd | 109169 | 2021-05-06 16:43:00 |
| fhn-20210331_cal.xml | 188494 | 2021-05-06 16:43:00 |
| fhn-20210331_def.xml | 753461 | 2021-05-06 16:43:00 |
 fhn-20210331_g1.jpg | 18068 | 2021-05-06 16:43:00 |
| fhn-20210331_htm.xml | 6866851 | 2021-05-06 16:43:00 |
| fhn-20210331_lab.xml | 1209356 | 2021-05-06 16:43:00 |
| fhn-20210331_pre.xml | 943728 | 2021-05-06 16:43:00 |
| FilingSummary.xml | 67089 | 2021-05-06 16:43:00 |
| Financial_Report.xlsx | 191414 | 2021-05-06 16:43:00 |
 image_01.jpg | 842527 | 2021-05-06 16:43:00 |
 image_02.jpg | 842527 | 2021-05-06 16:43:00 |
 image_03.jpg | 24997 | 2021-05-06 16:43:00 |
 image_11.jpg | 9198 | 2021-05-06 16:43:00 |
| MetaLinks.json | 1193928 | 2021-05-06 16:43:00 |
| R1.htm | 75079 | 2021-05-06 16:43:00 |
| R10.htm | 48898 | 2021-05-06 16:43:00 |
| R100.htm | 206232 | 2021-05-06 16:43:00 |
| R101.htm | 15079 | 2021-05-06 16:43:00 |
| R11.htm | 115410 | 2021-05-06 16:43:00 |
| R12.htm | 607992 | 2021-05-06 16:43:00 |
| R13.htm | 89467 | 2021-05-06 16:43:00 |
| R14.htm | 27045 | 2021-05-06 16:43:00 |
| R15.htm | 43236 | 2021-05-06 16:43:00 |
| R16.htm | 34641 | 2021-05-06 16:43:00 |
| R17.htm | 56114 | 2021-05-06 16:43:00 |
| R18.htm | 29667 | 2021-05-06 16:43:00 |
| R19.htm | 20946 | 2021-05-06 16:43:00 |
| R2.htm | 97224 | 2021-05-06 16:43:00 |
| R20.htm | 22969 | 2021-05-06 16:43:00 |
| R21.htm | 101460 | 2021-05-06 16:43:00 |
| R22.htm | 70907 | 2021-05-06 16:43:00 |
| R23.htm | 197712 | 2021-05-06 16:43:00 |
| R24.htm | 64357 | 2021-05-06 16:43:00 |
| R25.htm | 626228 | 2021-05-06 16:43:00 |
| R26.htm | 5276 | 2021-05-06 16:43:00 |
| R27.htm | 11050 | 2021-05-06 16:43:00 |
| R28.htm | 44379 | 2021-05-06 16:43:00 |
| R29.htm | 116008 | 2021-05-06 16:43:00 |
| R3.htm | 16423 | 2021-05-06 16:43:00 |
| R30.htm | 599775 | 2021-05-06 16:43:00 |
| R31.htm | 83797 | 2021-05-06 16:43:00 |
| R32.htm | 26885 | 2021-05-06 16:43:00 |
| R33.htm | 42586 | 2021-05-06 16:43:00 |
| R34.htm | 36819 | 2021-05-06 16:43:00 |
| R35.htm | 57319 | 2021-05-06 16:43:00 |
| R36.htm | 30711 | 2021-05-06 16:43:00 |
| R37.htm | 16834 | 2021-05-06 16:43:00 |
| R38.htm | 92399 | 2021-05-06 16:43:00 |
| R39.htm | 60439 | 2021-05-06 16:43:00 |
| R4.htm | 122265 | 2021-05-06 16:43:00 |
| R40.htm | 186648 | 2021-05-06 16:43:00 |
| R41.htm | 65411 | 2021-05-06 16:43:00 |
| R42.htm | 605126 | 2021-05-06 16:43:00 |
| R43.htm | 28614 | 2021-05-06 16:43:00 |
| R44.htm | 64316 | 2021-05-06 16:43:00 |
| R45.htm | 12733 | 2021-05-06 16:43:00 |
| R46.htm | 38394 | 2021-05-06 16:43:00 |
| R47.htm | 40505 | 2021-05-06 16:43:00 |
| R48.htm | 41978 | 2021-05-06 16:43:00 |
| R49.htm | 10115 | 2021-05-06 16:43:00 |
| R5.htm | 45553 | 2021-05-06 16:43:00 |
| R50.htm | 63443 | 2021-05-06 16:43:00 |
| R51.htm | 41603 | 2021-05-06 16:43:00 |
| R52.htm | 67092 | 2021-05-06 16:43:00 |
| R53.htm | 91684 | 2021-05-06 16:43:00 |
| R54.htm | 122577 | 2021-05-06 16:43:00 |
| R55.htm | 29414 | 2021-05-06 16:43:00 |
| R56.htm | 25103 | 2021-05-06 16:43:00 |
| R57.htm | 8588 | 2021-05-06 16:43:00 |
| R58.htm | 56276 | 2021-05-06 16:43:00 |
| R59.htm | 11498 | 2021-05-06 16:43:00 |
| R6.htm | 92614 | 2021-05-06 16:43:00 |
| R60.htm | 15517 | 2021-05-06 16:43:00 |
| R61.htm | 13219 | 2021-05-06 16:43:00 |
| R62.htm | 16475 | 2021-05-06 16:43:00 |
| R63.htm | 12812 | 2021-05-06 16:43:00 |
| R64.htm | 17350 | 2021-05-06 16:43:00 |
| R65.htm | 33834 | 2021-05-06 16:43:00 |
| R66.htm | 19132 | 2021-05-06 16:43:00 |
| R67.htm | 36481 | 2021-05-06 16:43:00 |
| R68.htm | 26894 | 2021-05-06 16:43:00 |
| R69.htm | 48340 | 2021-05-06 16:43:00 |
| R7.htm | 10417 | 2021-05-06 16:43:00 |
| R70.htm | 11454 | 2021-05-06 16:43:00 |
| R71.htm | 10477 | 2021-05-06 16:43:00 |
| R72.htm | 10995 | 2021-05-06 16:43:00 |
| R73.htm | 18521 | 2021-05-06 16:43:00 |
| R74.htm | 42768 | 2021-05-06 16:43:00 |
| R75.htm | 38294 | 2021-05-06 16:43:00 |
| R76.htm | 20046 | 2021-05-06 16:43:00 |
| R77.htm | 10453 | 2021-05-06 16:43:00 |
| R78.htm | 49330 | 2021-05-06 16:43:00 |
| R79.htm | 66256 | 2021-05-06 16:43:00 |
| R8.htm | 110148 | 2021-05-06 16:43:00 |
| R80.htm | 20568 | 2021-05-06 16:43:00 |
| R81.htm | 18153 | 2021-05-06 16:43:00 |
| R82.htm | 16635 | 2021-05-06 16:43:00 |
| R83.htm | 15687 | 2021-05-06 16:43:00 |
| R84.htm | 14894 | 2021-05-06 16:43:00 |
| R85.htm | 14445 | 2021-05-06 16:43:00 |
| R86.htm | 10014 | 2021-05-06 16:43:00 |
| R87.htm | 28891 | 2021-05-06 16:43:00 |
| R88.htm | 28222 | 2021-05-06 16:43:00 |
| R89.htm | 18723 | 2021-05-06 16:43:00 |
| R9.htm | 9976 | 2021-05-06 16:43:00 |
| R90.htm | 18590 | 2021-05-06 16:43:00 |
| R91.htm | 33873 | 2021-05-06 16:43:00 |
| R92.htm | 151110 | 2021-05-06 16:43:00 |
| R93.htm | 58537 | 2021-05-06 16:43:00 |
| R94.htm | 32870 | 2021-05-06 16:43:00 |
| R95.htm | 11112 | 2021-05-06 16:43:00 |
| R96.htm | 11041 | 2021-05-06 16:43:00 |
| R97.htm | 129120 | 2021-05-06 16:43:00 |
| R98.htm | 20915 | 2021-05-06 16:43:00 |
| R99.htm | 7458 | 2021-05-06 16:43:00 |
| R9999.htm | 12010 | 2021-05-06 16:43:00 |
| report.css | 2768 | 2021-05-06 16:43:00 |
| Show.js | 1086 | 2021-05-06 16:43:00 |