Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000104889-20-000021-index-headers.html | 2020-04-06 08:33:15 | |
| 0000104889-20-000021-index.html | 2020-04-06 08:33:15 | |
| 0000104889-20-000021.txt | 2020-04-06 08:33:15 | |
 0000104889-20-000021-xbrl.zip | 12684 | 2020-04-06 08:33:15 |
| FilingSummary.xml | 1664 | 2020-04-06 08:33:15 |
| Financial_Report.xlsx | 5800 | 2020-04-06 08:33:15 |
| form8-k.htm | 50171 | 2020-04-06 08:33:15 |
| form8-k_htm.xml | 4306 | 2020-04-06 08:33:15 |
| ghc-20200401.xsd | 4427 | 2020-04-06 08:33:15 |
| ghc-20200401_cal.xml | 611 | 2020-04-06 08:33:15 |
| ghc-20200401_def.xml | 1461 | 2020-04-06 08:33:15 |
| ghc-20200401_lab.xml | 26147 | 2020-04-06 08:33:15 |
| ghc-20200401_pre.xml | 13567 | 2020-04-06 08:33:15 |
| MetaLinks.json | 18176 | 2020-04-06 08:33:15 |
| R1.htm | 38621 | 2020-04-06 08:33:15 |
| report.css | 2767 | 2020-04-06 08:33:15 |
| Show.js | 1085 | 2020-04-06 08:33:15 |