Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-23-037360-index-headers.html | 2023-11-07 16:14:32 | |
| 0001628280-23-037360-index.html | 2023-11-07 16:14:32 | |
| 0001628280-23-037360.txt | 2023-11-07 16:14:32 | |
 0001628280-23-037360-xbrl.zip | 714138 | 2023-11-07 16:14:32 |
| FilingSummary.xml | 31039 | 2023-11-07 16:14:32 |
| Financial_Report.xlsx | 84790 | 2023-11-07 16:14:32 |
| lyel-20230930.htm | 1359211 | 2023-11-07 16:14:32 |
| lyel-20230930.xsd | 44797 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx101.htm | 39629 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx102.htm | 20161 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx311.htm | 10651 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx312.htm | 10621 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx32.htm | 263731 | 2023-11-07 16:14:32 |
| lyel-20230930x10qxexx321.htm | 7503 | 2023-11-07 16:14:32 |
| lyel-20230930_cal.xml | 62317 | 2023-11-07 16:14:32 |
| lyel-20230930_def.xml | 251060 | 2023-11-07 16:14:32 |
 lyel-20230930_g1.jpg | 619192 | 2023-11-07 16:14:32 |
| lyel-20230930_htm.xml | 806608 | 2023-11-07 16:14:32 |
| lyel-20230930_lab.xml | 654392 | 2023-11-07 16:14:32 |
| lyel-20230930_pre.xml | 445389 | 2023-11-07 16:14:32 |
| MetaLinks.json | 769157 | 2023-11-07 16:14:32 |
| R1.htm | 51522 | 2023-11-07 16:14:32 |
| R10.htm | 46496 | 2023-11-07 16:14:32 |
| R11.htm | 45137 | 2023-11-07 16:14:32 |
| R12.htm | 8283 | 2023-11-07 16:14:32 |
| R13.htm | 70567 | 2023-11-07 16:14:32 |
| R14.htm | 34701 | 2023-11-07 16:14:32 |
| R15.htm | 11585 | 2023-11-07 16:14:32 |
| R16.htm | 53465 | 2023-11-07 16:14:32 |
| R17.htm | 5519 | 2023-11-07 16:14:32 |
| R18.htm | 6842 | 2023-11-07 16:14:32 |
| R19.htm | 18926 | 2023-11-07 16:14:32 |
| R2.htm | 95352 | 2023-11-07 16:14:32 |
| R20.htm | 5318 | 2023-11-07 16:14:32 |
| R21.htm | 15389 | 2023-11-07 16:14:32 |
| R22.htm | 8480 | 2023-11-07 16:14:32 |
| R23.htm | 22320 | 2023-11-07 16:14:32 |
| R24.htm | 24753 | 2023-11-07 16:14:32 |
| R25.htm | 85636 | 2023-11-07 16:14:32 |
| R26.htm | 71194 | 2023-11-07 16:14:32 |
| R27.htm | 26358 | 2023-11-07 16:14:32 |
| R28.htm | 50899 | 2023-11-07 16:14:32 |
| R29.htm | 13224 | 2023-11-07 16:14:32 |
| R3.htm | 22262 | 2023-11-07 16:14:32 |
| R30.htm | 44245 | 2023-11-07 16:14:32 |
| R31.htm | 162956 | 2023-11-07 16:14:32 |
| R32.htm | 40226 | 2023-11-07 16:14:32 |
| R33.htm | 40028 | 2023-11-07 16:14:32 |
| R34.htm | 12033 | 2023-11-07 16:14:32 |
| R35.htm | 46509 | 2023-11-07 16:14:32 |
| R36.htm | 43139 | 2023-11-07 16:14:32 |
| R37.htm | 27100 | 2023-11-07 16:14:32 |
| R38.htm | 17505 | 2023-11-07 16:14:32 |
| R39.htm | 15374 | 2023-11-07 16:14:32 |
| R4.htm | 72997 | 2023-11-07 16:14:32 |
| R40.htm | 25817 | 2023-11-07 16:14:32 |
| R41.htm | 27599 | 2023-11-07 16:14:32 |
| R42.htm | 30363 | 2023-11-07 16:14:32 |
| R43.htm | 59172 | 2023-11-07 16:14:32 |
| R44.htm | 10440 | 2023-11-07 16:14:32 |
| R45.htm | 24914 | 2023-11-07 16:14:32 |
| R46.htm | 40613 | 2023-11-07 16:14:32 |
| R47.htm | 11585 | 2023-11-07 16:14:32 |
| R48.htm | 33015 | 2023-11-07 16:14:32 |
| R49.htm | 11163 | 2023-11-07 16:14:32 |
| R5.htm | 12189 | 2023-11-07 16:14:32 |
| R50.htm | 13652 | 2023-11-07 16:14:32 |
| R6.htm | 73263 | 2023-11-07 16:14:32 |
| R7.htm | 92210 | 2023-11-07 16:14:32 |
| R8.htm | 6410 | 2023-11-07 16:14:32 |
| R9.htm | 13977 | 2023-11-07 16:14:32 |
| report.css | 2767 | 2023-11-07 16:14:32 |
| Show.js | 1085 | 2023-11-07 16:14:32 |