Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000104889-22-000018-index-headers.html | 2022-05-06 13:29:20 | |
| 0000104889-22-000018-index.html | 2022-05-06 13:29:20 | |
| 0000104889-22-000018.txt | 2022-05-06 13:29:20 | |
 0000104889-22-000018-xbrl.zip | 11551 | 2022-05-06 13:29:20 |
| FilingSummary.xml | 1611 | 2022-05-06 13:29:20 |
| Financial_Report.xlsx | 5679 | 2022-05-06 13:29:20 |
| ghc-20220505.htm | 62403 | 2022-05-06 13:29:20 |
| ghc-20220505.xsd | 1906 | 2022-05-06 13:29:20 |
| ghc-20220505_htm.xml | 11344 | 2022-05-06 13:29:20 |
| ghc-20220505_lab.xml | 24229 | 2022-05-06 13:29:20 |
| ghc-20220505_pre.xml | 12603 | 2022-05-06 13:29:20 |
| MetaLinks.json | 16562 | 2022-05-06 13:29:20 |
| R1.htm | 38709 | 2022-05-06 13:29:20 |
| report.css | 2766 | 2022-05-06 13:29:20 |
| Show.js | 1084 | 2022-05-06 13:29:20 |