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| 0001193125-26-282987-index.html | 2026-06-25 17:00:12 | |
| 0001193125-26-282987.txt | 2026-06-25 17:00:12 | |
 0001193125-26-282987-xbrl.zip | 64412 | 2026-06-25 17:00:12 |
| d220134d11k.htm | 420966 | 2026-06-25 17:00:12 |
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| d220134dex231.htm | 2015 | 2026-06-25 17:00:12 |
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| gtn-20251231.xsd | 617673 | 2026-06-25 17:00:12 |
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| R9.htm | 6550 | 2026-06-25 17:00:12 |
| report.css | 2767 | 2026-06-25 17:00:12 |
| Show.js | 1085 | 2026-06-25 17:00:12 |