Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000931148-23-000139-index-headers.html | 2023-08-04 12:16:42 | |
| 0000931148-23-000139-index.html | 2023-08-04 12:16:42 | |
| 0000931148-23-000139.txt | 2023-08-04 12:16:42 | |
 0000931148-23-000139-xbrl.zip | 239334 | 2023-08-04 12:16:42 |
| a2023-2q10qex311.htm | 9968 | 2023-08-04 12:16:42 |
| a2023-2q10qex312.htm | 10026 | 2023-08-04 12:16:42 |
| a2023-2q10qex321.htm | 5825 | 2023-08-04 12:16:42 |
| a2023-2q10qex322.htm | 5745 | 2023-08-04 12:16:42 |
| exhibit103-graftechxshor.htm | 36357 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor001.jpg | 205471 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor002.jpg | 323808 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor003.jpg | 277750 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor004.jpg | 241642 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor005.jpg | 218056 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor006.jpg | 275161 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor007.jpg | 282182 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor008.jpg | 308394 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor009.jpg | 256280 | 2023-08-04 12:16:42 |
 exhibit103-graftechxshor010.jpg | 184769 | 2023-08-04 12:16:42 |
| FilingSummary.xml | 41748 | 2023-08-04 12:16:42 |
| Financial_Report.xlsx | 97754 | 2023-08-04 12:16:42 |
| gti-20230630.htm | 1321940 | 2023-08-04 12:16:42 |
| gti-20230630.xsd | 43135 | 2023-08-04 12:16:42 |
| gti-20230630_cal.xml | 63212 | 2023-08-04 12:16:42 |
| gti-20230630_def.xml | 224965 | 2023-08-04 12:16:42 |
 gti-20230630_g1.jpg | 13851 | 2023-08-04 12:16:42 |
| gti-20230630_htm.xml | 750751 | 2023-08-04 12:16:42 |
| gti-20230630_lab.xml | 523747 | 2023-08-04 12:16:42 |
| gti-20230630_pre.xml | 386715 | 2023-08-04 12:16:42 |
| MetaLinks.json | 664343 | 2023-08-04 12:16:42 |
| R1.htm | 51510 | 2023-08-04 12:16:42 |
| R10.htm | 31684 | 2023-08-04 12:16:42 |
| R11.htm | 24387 | 2023-08-04 12:16:42 |
| R12.htm | 31752 | 2023-08-04 12:16:42 |
| R13.htm | 12328 | 2023-08-04 12:16:42 |
| R14.htm | 26772 | 2023-08-04 12:16:42 |
| R15.htm | 22640 | 2023-08-04 12:16:42 |
| R16.htm | 20948 | 2023-08-04 12:16:42 |
| R17.htm | 81867 | 2023-08-04 12:16:42 |
| R18.htm | 12382 | 2023-08-04 12:16:42 |
| R19.htm | 28592 | 2023-08-04 12:16:42 |
| R2.htm | 97969 | 2023-08-04 12:16:42 |
| R20.htm | 13710 | 2023-08-04 12:16:42 |
| R21.htm | 5886 | 2023-08-04 12:16:42 |
| R22.htm | 9540 | 2023-08-04 12:16:42 |
| R23.htm | 28145 | 2023-08-04 12:16:42 |
| R24.htm | 24035 | 2023-08-04 12:16:42 |
| R25.htm | 18906 | 2023-08-04 12:16:42 |
| R26.htm | 13293 | 2023-08-04 12:16:42 |
| R27.htm | 23050 | 2023-08-04 12:16:42 |
| R28.htm | 8704 | 2023-08-04 12:16:42 |
| R29.htm | 15283 | 2023-08-04 12:16:42 |
| R3.htm | 22362 | 2023-08-04 12:16:42 |
| R30.htm | 78199 | 2023-08-04 12:16:42 |
| R31.htm | 11832 | 2023-08-04 12:16:42 |
| R32.htm | 25609 | 2023-08-04 12:16:42 |
| R33.htm | 8975 | 2023-08-04 12:16:42 |
| R34.htm | 7625 | 2023-08-04 12:16:42 |
| R35.htm | 7795 | 2023-08-04 12:16:42 |
| R36.htm | 17191 | 2023-08-04 12:16:42 |
| R37.htm | 10720 | 2023-08-04 12:16:42 |
| R38.htm | 6132 | 2023-08-04 12:16:42 |
| R39.htm | 30361 | 2023-08-04 12:16:42 |
| R4.htm | 88816 | 2023-08-04 12:16:42 |
| R40.htm | 6114 | 2023-08-04 12:16:42 |
| R41.htm | 17775 | 2023-08-04 12:16:42 |
| R42.htm | 18946 | 2023-08-04 12:16:42 |
| R43.htm | 31844 | 2023-08-04 12:16:42 |
| R44.htm | 12834 | 2023-08-04 12:16:42 |
| R45.htm | 45622 | 2023-08-04 12:16:42 |
| R46.htm | 36947 | 2023-08-04 12:16:42 |
| R47.htm | 36752 | 2023-08-04 12:16:42 |
| R48.htm | 10577 | 2023-08-04 12:16:42 |
| R49.htm | 20485 | 2023-08-04 12:16:42 |
| R5.htm | 8171 | 2023-08-04 12:16:42 |
| R50.htm | 44219 | 2023-08-04 12:16:42 |
| R51.htm | 24324 | 2023-08-04 12:16:42 |
| R52.htm | 9979 | 2023-08-04 12:16:42 |
| R53.htm | 13445 | 2023-08-04 12:16:42 |
| R54.htm | 11245 | 2023-08-04 12:16:42 |
| R55.htm | 73463 | 2023-08-04 12:16:42 |
| R56.htm | 16134 | 2023-08-04 12:16:42 |
| R57.htm | 17781 | 2023-08-04 12:16:42 |
| R58.htm | 12339 | 2023-08-04 12:16:42 |
| R59.htm | 28208 | 2023-08-04 12:16:42 |
| R6.htm | 98080 | 2023-08-04 12:16:42 |
| R60.htm | 11509 | 2023-08-04 12:16:42 |
| R61.htm | 52972 | 2023-08-04 12:16:42 |
| R62.htm | 47453 | 2023-08-04 12:16:42 |
| R63.htm | 11195 | 2023-08-04 12:16:42 |
| R64.htm | 4846 | 2023-08-04 12:16:42 |
| R7.htm | 100793 | 2023-08-04 12:16:42 |
| R8.htm | 12612 | 2023-08-04 12:16:42 |
| R9.htm | 11102 | 2023-08-04 12:16:42 |
| report.css | 2767 | 2023-08-04 12:16:42 |
| Show.js | 1085 | 2023-08-04 12:16:42 |