Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000104889-22-000033-index-headers.html | 2022-08-03 08:40:40 | |
| 0000104889-22-000033-index.html | 2022-08-03 08:40:40 | |
| 0000104889-22-000033.txt | 2022-08-03 08:40:40 | |
 0000104889-22-000033-xbrl.zip | 443892 | 2022-08-03 08:40:40 |
| a2022q210-qex311.htm | 9581 | 2022-08-03 08:40:40 |
| a2022q210-qex312.htm | 9493 | 2022-08-03 08:40:40 |
| a2022q210-qex32.htm | 5476 | 2022-08-03 08:40:40 |
| FilingSummary.xml | 48707 | 2022-08-03 08:40:40 |
| Financial_Report.xlsx | 137514 | 2022-08-03 08:40:40 |
| ghc-20220630.htm | 2790115 | 2022-08-03 08:40:40 |
| ghc-20220630.xsd | 83056 | 2022-08-03 08:40:40 |
| ghc-20220630_cal.xml | 128333 | 2022-08-03 08:40:40 |
| ghc-20220630_def.xml | 571155 | 2022-08-03 08:40:40 |
| ghc-20220630_htm.xml | 3211155 | 2022-08-03 08:40:40 |
| ghc-20220630_lab.xml | 974153 | 2022-08-03 08:40:40 |
| ghc-20220630_pre.xml | 722511 | 2022-08-03 08:40:40 |
| MetaLinks.json | 983115 | 2022-08-03 08:40:40 |
| R1.htm | 53606 | 2022-08-03 08:40:40 |
| R10.htm | 29519 | 2022-08-03 08:40:40 |
| R11.htm | 18226 | 2022-08-03 08:40:40 |
| R12.htm | 15857 | 2022-08-03 08:40:40 |
| R13.htm | 109030 | 2022-08-03 08:40:40 |
| R14.htm | 34929 | 2022-08-03 08:40:40 |
| R15.htm | 86598 | 2022-08-03 08:40:40 |
| R16.htm | 23077 | 2022-08-03 08:40:40 |
| R17.htm | 52844 | 2022-08-03 08:40:40 |
| R18.htm | 70328 | 2022-08-03 08:40:40 |
| R19.htm | 24279 | 2022-08-03 08:40:40 |
| R2.htm | 104825 | 2022-08-03 08:40:40 |
| R20.htm | 110117 | 2022-08-03 08:40:40 |
| R21.htm | 15428 | 2022-08-03 08:40:40 |
| R22.htm | 305876 | 2022-08-03 08:40:40 |
| R23.htm | 11235 | 2022-08-03 08:40:40 |
| R24.htm | 25853 | 2022-08-03 08:40:40 |
| R25.htm | 23317 | 2022-08-03 08:40:40 |
| R26.htm | 20074 | 2022-08-03 08:40:40 |
| R27.htm | 13470 | 2022-08-03 08:40:40 |
| R28.htm | 113382 | 2022-08-03 08:40:40 |
| R29.htm | 25555 | 2022-08-03 08:40:40 |
| R3.htm | 60218 | 2022-08-03 08:40:40 |
| R30.htm | 87730 | 2022-08-03 08:40:40 |
| R31.htm | 17139 | 2022-08-03 08:40:40 |
| R32.htm | 53099 | 2022-08-03 08:40:40 |
| R33.htm | 67507 | 2022-08-03 08:40:40 |
| R34.htm | 22734 | 2022-08-03 08:40:40 |
| R35.htm | 113548 | 2022-08-03 08:40:40 |
| R36.htm | 261466 | 2022-08-03 08:40:40 |
| R37.htm | 3939 | 2022-08-03 08:40:40 |
| R38.htm | 56135 | 2022-08-03 08:40:40 |
| R39.htm | 10157 | 2022-08-03 08:40:40 |
| R4.htm | 158582 | 2022-08-03 08:40:40 |
| R40.htm | 36507 | 2022-08-03 08:40:40 |
| R41.htm | 7838 | 2022-08-03 08:40:40 |
| R42.htm | 78215 | 2022-08-03 08:40:40 |
| R43.htm | 10191 | 2022-08-03 08:40:40 |
| R44.htm | 9717 | 2022-08-03 08:40:40 |
| R45.htm | 8038 | 2022-08-03 08:40:40 |
| R46.htm | 21981 | 2022-08-03 08:40:40 |
| R47.htm | 27029 | 2022-08-03 08:40:40 |
| R48.htm | 13786 | 2022-08-03 08:40:40 |
| R49.htm | 23387 | 2022-08-03 08:40:40 |
| R5.htm | 5109 | 2022-08-03 08:40:40 |
| R50.htm | 55706 | 2022-08-03 08:40:40 |
| R51.htm | 55423 | 2022-08-03 08:40:40 |
| R52.htm | 69911 | 2022-08-03 08:40:40 |
| R53.htm | 56299 | 2022-08-03 08:40:40 |
| R54.htm | 7228 | 2022-08-03 08:40:40 |
| R55.htm | 51242 | 2022-08-03 08:40:40 |
| R56.htm | 27636 | 2022-08-03 08:40:40 |
| R57.htm | 39194 | 2022-08-03 08:40:40 |
| R58.htm | 12796 | 2022-08-03 08:40:40 |
| R59.htm | 6210 | 2022-08-03 08:40:40 |
| R6.htm | 115032 | 2022-08-03 08:40:40 |
| R60.htm | 9861 | 2022-08-03 08:40:40 |
| R61.htm | 9517 | 2022-08-03 08:40:40 |
| R62.htm | 62389 | 2022-08-03 08:40:40 |
| R63.htm | 9737 | 2022-08-03 08:40:40 |
| R64.htm | 56935 | 2022-08-03 08:40:40 |
| R65.htm | 37081 | 2022-08-03 08:40:40 |
| R66.htm | 16493 | 2022-08-03 08:40:40 |
| R67.htm | 8012 | 2022-08-03 08:40:40 |
| R68.htm | 21307 | 2022-08-03 08:40:40 |
| R69.htm | 56120 | 2022-08-03 08:40:40 |
| R7.htm | 114022 | 2022-08-03 08:40:40 |
| R70.htm | 46116 | 2022-08-03 08:40:40 |
| R71.htm | 55147 | 2022-08-03 08:40:40 |
| R72.htm | 30388 | 2022-08-03 08:40:40 |
| R73.htm | 4711 | 2022-08-03 08:40:40 |
| R74.htm | 129430 | 2022-08-03 08:40:40 |
| R8.htm | 11662 | 2022-08-03 08:40:40 |
| R9.htm | 31433 | 2022-08-03 08:40:40 |
| report.css | 2767 | 2022-08-03 08:40:40 |
| Show.js | 1085 | 2022-08-03 08:40:40 |