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|---|---|---|
 0000355811-25-000018-index-headers.html | 2025-04-03 10:09:46 | |
| 0000355811-25-000018-index.html | 2025-04-03 10:09:46 | |
| 0000355811-25-000018.txt | 2025-04-03 10:09:46 | |
 0000355811-25-000018-xbrl.zip | 949113 | 2025-04-03 10:09:46 |
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| a2025proxycard.htm | 1314 | 2025-04-03 10:09:46 |
| FilingSummary.xml | 3513 | 2025-04-03 10:09:46 |
| gntx-20250402.htm | 921439 | 2025-04-03 10:09:46 |
| gntx-20250402.xsd | 920 | 2025-04-03 10:09:46 |
 gntx-20250402_g1.jpg | 54164 | 2025-04-03 10:09:46 |
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 gntx-20250402_g3.jpg | 40998 | 2025-04-03 10:09:46 |
 gntx-20250402_g4.jpg | 42156 | 2025-04-03 10:09:46 |
 gntx-20250402_g5.jpg | 425877 | 2025-04-03 10:09:46 |
 gntx-20250402_g6.jpg | 383916 | 2025-04-03 10:09:46 |
 gntx-20250402_g7.jpg | 395724 | 2025-04-03 10:09:46 |
| gntx-20250402_htm.xml | 173691 | 2025-04-03 10:09:46 |
| MetaLinks.json | 194566 | 2025-04-03 10:09:46 |
| R1.htm | 10826 | 2025-04-03 10:09:46 |
| R2.htm | 193113 | 2025-04-03 10:09:46 |
| R3.htm | 11645 | 2025-04-03 10:09:46 |
| R4.htm | 4370 | 2025-04-03 10:09:46 |
| report.css | 2767 | 2025-04-03 10:09:46 |
| Show.js | 1085 | 2025-04-03 10:09:46 |