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| 0000104889-24-000021-index.html | 2024-05-08 11:16:23 | |
| 0000104889-24-000021.txt | 2024-05-08 11:16:23 | |
 0000104889-24-000021-xbrl.zip | 9884 | 2024-05-08 11:16:23 |
| FilingSummary.xml | 1629 | 2024-05-08 11:16:23 |
| Financial_Report.xlsx | 5697 | 2024-05-08 11:16:23 |
| ghc-20240507.htm | 47972 | 2024-05-08 11:16:23 |
| ghc-20240507.xsd | 1902 | 2024-05-08 11:16:23 |
| ghc-20240507_htm.xml | 2728 | 2024-05-08 11:16:23 |
| ghc-20240507_lab.xml | 21885 | 2024-05-08 11:16:23 |
| ghc-20240507_pre.xml | 12513 | 2024-05-08 11:16:23 |
| MetaLinks.json | 16943 | 2024-05-08 11:16:23 |
| R1.htm | 38104 | 2024-05-08 11:16:23 |
| report.css | 2766 | 2024-05-08 11:16:23 |
| Show.js | 1084 | 2024-05-08 11:16:23 |