Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000712534-25-000197-index-headers.html | 2025-10-30 15:08:17 | |
| 0000712534-25-000197-index.html | 2025-10-30 15:08:17 | |
| 0000712534-25-000197.txt | 2025-10-30 15:08:17 | |
 0000712534-25-000197-xbrl.zip | 434269 | 2025-10-30 15:08:17 |
| exhibit31110q2025q3.htm | 9628 | 2025-10-30 15:08:17 |
| exhibit31210q2025q3.htm | 9967 | 2025-10-30 15:08:17 |
| exhibit3210q2025q3.htm | 9387 | 2025-10-30 15:08:17 |
| FilingSummary.xml | 50767 | 2025-10-30 15:08:17 |
| frme-20250930.htm | 4212996 | 2025-10-30 15:08:17 |
| frme-20250930.xsd | 64321 | 2025-10-30 15:08:17 |
| frme-20250930_cal.xml | 141949 | 2025-10-30 15:08:17 |
| frme-20250930_def.xml | 585038 | 2025-10-30 15:08:17 |
| frme-20250930_htm.xml | 4895429 | 2025-10-30 15:08:17 |
| frme-20250930_lab.xml | 1030322 | 2025-10-30 15:08:17 |
| frme-20250930_pre.xml | 772179 | 2025-10-30 15:08:17 |
| MetaLinks.json | 1399588 | 2025-10-30 15:08:17 |
| R1.htm | 56176 | 2025-10-30 15:08:17 |
| R10.htm | 17090 | 2025-10-30 15:08:17 |
| R11.htm | 256145 | 2025-10-30 15:08:17 |
| R12.htm | 949542 | 2025-10-30 15:08:17 |
| R13.htm | 55688 | 2025-10-30 15:08:17 |
| R14.htm | 195339 | 2025-10-30 15:08:17 |
| R15.htm | 20562 | 2025-10-30 15:08:17 |
| R16.htm | 65447 | 2025-10-30 15:08:17 |
| R17.htm | 56060 | 2025-10-30 15:08:17 |
| R18.htm | 62038 | 2025-10-30 15:08:17 |
| R19.htm | 34746 | 2025-10-30 15:08:17 |
| R2.htm | 132291 | 2025-10-30 15:08:17 |
| R20.htm | 39512 | 2025-10-30 15:08:17 |
| R21.htm | 12523 | 2025-10-30 15:08:17 |
| R22.htm | 5069 | 2025-10-30 15:08:17 |
| R23.htm | 8465 | 2025-10-30 15:08:17 |
| R24.htm | 13670 | 2025-10-30 15:08:17 |
| R25.htm | 15688 | 2025-10-30 15:08:17 |
| R26.htm | 255060 | 2025-10-30 15:08:17 |
| R27.htm | 935975 | 2025-10-30 15:08:17 |
| R28.htm | 46446 | 2025-10-30 15:08:17 |
| R29.htm | 189784 | 2025-10-30 15:08:17 |
| R3.htm | 34858 | 2025-10-30 15:08:17 |
| R30.htm | 18728 | 2025-10-30 15:08:17 |
| R31.htm | 49075 | 2025-10-30 15:08:17 |
| R32.htm | 57127 | 2025-10-30 15:08:17 |
| R33.htm | 59899 | 2025-10-30 15:08:17 |
| R34.htm | 31306 | 2025-10-30 15:08:17 |
| R35.htm | 37488 | 2025-10-30 15:08:17 |
| R36.htm | 44069 | 2025-10-30 15:08:17 |
| R37.htm | 25853 | 2025-10-30 15:08:17 |
| R38.htm | 53946 | 2025-10-30 15:08:17 |
| R39.htm | 13410 | 2025-10-30 15:08:17 |
| R4.htm | 160346 | 2025-10-30 15:08:17 |
| R40.htm | 64212 | 2025-10-30 15:08:17 |
| R41.htm | 41022 | 2025-10-30 15:08:17 |
| R42.htm | 30893 | 2025-10-30 15:08:17 |
| R43.htm | 80972 | 2025-10-30 15:08:17 |
| R44.htm | 9251 | 2025-10-30 15:08:17 |
| R45.htm | 94896 | 2025-10-30 15:08:17 |
| R46.htm | 31680 | 2025-10-30 15:08:17 |
| R47.htm | 240120 | 2025-10-30 15:08:17 |
| R48.htm | 86304 | 2025-10-30 15:08:17 |
| R49.htm | 32435 | 2025-10-30 15:08:17 |
| R5.htm | 37724 | 2025-10-30 15:08:17 |
| R50.htm | 75818 | 2025-10-30 15:08:17 |
| R51.htm | 115561 | 2025-10-30 15:08:17 |
| R52.htm | 64699 | 2025-10-30 15:08:17 |
| R53.htm | 29901 | 2025-10-30 15:08:17 |
| R54.htm | 9145 | 2025-10-30 15:08:17 |
| R55.htm | 29089 | 2025-10-30 15:08:17 |
| R56.htm | 12901 | 2025-10-30 15:08:17 |
| R57.htm | 7224 | 2025-10-30 15:08:17 |
| R58.htm | 55055 | 2025-10-30 15:08:17 |
| R59.htm | 12244 | 2025-10-30 15:08:17 |
| R6.htm | 120250 | 2025-10-30 15:08:17 |
| R60.htm | 15039 | 2025-10-30 15:08:17 |
| R61.htm | 49773 | 2025-10-30 15:08:17 |
| R62.htm | 70953 | 2025-10-30 15:08:17 |
| R63.htm | 12806 | 2025-10-30 15:08:17 |
| R64.htm | 15487 | 2025-10-30 15:08:17 |
| R65.htm | 106538 | 2025-10-30 15:08:17 |
| R66.htm | 15304 | 2025-10-30 15:08:17 |
| R67.htm | 40567 | 2025-10-30 15:08:17 |
| R68.htm | 29105 | 2025-10-30 15:08:17 |
| R69.htm | 32819 | 2025-10-30 15:08:17 |
| R7.htm | 6543 | 2025-10-30 15:08:17 |
| R70.htm | 45442 | 2025-10-30 15:08:17 |
| R71.htm | 24757 | 2025-10-30 15:08:17 |
| R72.htm | 41153 | 2025-10-30 15:08:17 |
| R73.htm | 24814 | 2025-10-30 15:08:17 |
| R74.htm | 28657 | 2025-10-30 15:08:17 |
| R75.htm | 42383 | 2025-10-30 15:08:17 |
| R76.htm | 4834 | 2025-10-30 15:08:17 |
| R8.htm | 136922 | 2025-10-30 15:08:17 |
| R9.htm | 14124 | 2025-10-30 15:08:17 |
| report.css | 2767 | 2025-10-30 15:08:17 |
| Show.js | 1085 | 2025-10-30 15:08:17 |