Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001840292-22-000020-index-headers.html | 2022-08-10 17:19:27 | |
| 0001840292-22-000020-index.html | 2022-08-10 17:19:27 | |
| 0001840292-22-000020.txt | 2022-08-10 17:19:27 | |
 0001840292-22-000020-xbrl.zip | 24670 | 2022-08-10 17:19:27 |
| ex991hlgn20220630-earnings.htm | 128953 | 2022-08-10 17:19:27 |
| FilingSummary.xml | 1683 | 2022-08-10 17:19:27 |
| Financial_Report.xlsx | 5864 | 2022-08-10 17:19:27 |
| hlg-20220810.htm | 38928 | 2022-08-10 17:19:27 |
| hlg-20220810.xsd | 2288 | 2022-08-10 17:19:27 |
| hlg-20220810_def.xml | 16123 | 2022-08-10 17:19:27 |
| hlg-20220810_htm.xml | 14617 | 2022-08-10 17:19:27 |
| hlg-20220810_lab.xml | 30927 | 2022-08-10 17:19:27 |
| hlg-20220810_pre.xml | 16814 | 2022-08-10 17:19:27 |
| MetaLinks.json | 20824 | 2022-08-10 17:19:27 |
| R1.htm | 44524 | 2022-08-10 17:19:27 |
| report.css | 2767 | 2022-08-10 17:19:27 |
| Show.js | 1085 | 2022-08-10 17:19:27 |