Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000104889-20-000054-index-headers.html | 2020-10-02 17:04:05 | |
| 0000104889-20-000054-index.html | 2020-10-02 17:04:05 | |
| 0000104889-20-000054.txt | 2020-10-02 17:04:05 | |
 0000104889-20-000054-xbrl.zip | 12273 | 2020-10-02 17:04:05 |
| FilingSummary.xml | 1679 | 2020-10-02 17:04:05 |
| Financial_Report.xlsx | 5456 | 2020-10-02 17:04:05 |
| ghc-20201001.htm | 48987 | 2020-10-02 17:04:05 |
| ghc-20201001.xsd | 2419 | 2020-10-02 17:04:05 |
| ghc-20201001_cal.xml | 713 | 2020-10-02 17:04:05 |
| ghc-20201001_def.xml | 1650 | 2020-10-02 17:04:05 |
| ghc-20201001_htm.xml | 11261 | 2020-10-02 17:04:05 |
| ghc-20201001_lab.xml | 24275 | 2020-10-02 17:04:05 |
| ghc-20201001_pre.xml | 12649 | 2020-10-02 17:04:05 |
| MetaLinks.json | 17251 | 2020-10-02 17:04:05 |
| R1.htm | 38626 | 2020-10-02 17:04:05 |
| report.css | 2767 | 2020-10-02 17:04:05 |
| Show.js | 1085 | 2020-10-02 17:04:05 |