Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001840292-23-000021-index-headers.html | 2023-05-10 16:06:48 | |
| 0001840292-23-000021-index.html | 2023-05-10 16:06:48 | |
| 0001840292-23-000021.txt | 2023-05-10 16:06:48 | |
 0001840292-23-000021-xbrl.zip | 209180 | 2023-05-10 16:06:48 |
| ex311-2023q110xq.htm | 11754 | 2023-05-10 16:06:48 |
| ex312-2023q110xq.htm | 11773 | 2023-05-10 16:06:48 |
| ex321-2023q110xq.htm | 6058 | 2023-05-10 16:06:48 |
| ex322-2023q110xq.htm | 5977 | 2023-05-10 16:06:48 |
| FilingSummary.xml | 33047 | 2023-05-10 16:06:48 |
| Financial_Report.xlsx | 76891 | 2023-05-10 16:06:48 |
| hlg-20230331.htm | 1080640 | 2023-05-10 16:06:48 |
| hlg-20230331.xsd | 40927 | 2023-05-10 16:06:48 |
| hlg-20230331_cal.xml | 66439 | 2023-05-10 16:06:48 |
| hlg-20230331_def.xml | 213958 | 2023-05-10 16:06:48 |
| hlg-20230331_htm.xml | 862367 | 2023-05-10 16:06:48 |
| hlg-20230331_lab.xml | 537412 | 2023-05-10 16:06:48 |
| hlg-20230331_pre.xml | 348202 | 2023-05-10 16:06:48 |
| MetaLinks.json | 634937 | 2023-05-10 16:06:48 |
| R1.htm | 61666 | 2023-05-10 16:06:48 |
| R10.htm | 11647 | 2023-05-10 16:06:48 |
| R11.htm | 28367 | 2023-05-10 16:06:48 |
| R12.htm | 28043 | 2023-05-10 16:06:48 |
| R13.htm | 19237 | 2023-05-10 16:06:48 |
| R14.htm | 28927 | 2023-05-10 16:06:48 |
| R15.htm | 14762 | 2023-05-10 16:06:48 |
| R16.htm | 11175 | 2023-05-10 16:06:48 |
| R17.htm | 29551 | 2023-05-10 16:06:48 |
| R18.htm | 42961 | 2023-05-10 16:06:48 |
| R19.htm | 8307 | 2023-05-10 16:06:48 |
| R2.htm | 105479 | 2023-05-10 16:06:48 |
| R20.htm | 5837 | 2023-05-10 16:06:48 |
| R21.htm | 6730 | 2023-05-10 16:06:48 |
| R22.htm | 14225 | 2023-05-10 16:06:48 |
| R23.htm | 40068 | 2023-05-10 16:06:48 |
| R24.htm | 25841 | 2023-05-10 16:06:48 |
| R25.htm | 28606 | 2023-05-10 16:06:48 |
| R26.htm | 18040 | 2023-05-10 16:06:48 |
| R27.htm | 32473 | 2023-05-10 16:06:48 |
| R28.htm | 14132 | 2023-05-10 16:06:48 |
| R29.htm | 31260 | 2023-05-10 16:06:48 |
| R3.htm | 19572 | 2023-05-10 16:06:48 |
| R30.htm | 41255 | 2023-05-10 16:06:48 |
| R31.htm | 21870 | 2023-05-10 16:06:48 |
| R32.htm | 22952 | 2023-05-10 16:06:48 |
| R33.htm | 36044 | 2023-05-10 16:06:48 |
| R34.htm | 18422 | 2023-05-10 16:06:48 |
| R35.htm | 19644 | 2023-05-10 16:06:48 |
| R36.htm | 47841 | 2023-05-10 16:06:48 |
| R37.htm | 17186 | 2023-05-10 16:06:48 |
| R38.htm | 7100 | 2023-05-10 16:06:48 |
| R39.htm | 19443 | 2023-05-10 16:06:48 |
| R4.htm | 99638 | 2023-05-10 16:06:48 |
| R40.htm | 5537 | 2023-05-10 16:06:48 |
| R41.htm | 8761 | 2023-05-10 16:06:48 |
| R42.htm | 32965 | 2023-05-10 16:06:48 |
| R43.htm | 4749 | 2023-05-10 16:06:48 |
| R44.htm | 8646 | 2023-05-10 16:06:48 |
| R45.htm | 11929 | 2023-05-10 16:06:48 |
| R46.htm | 19473 | 2023-05-10 16:06:48 |
| R47.htm | 16049 | 2023-05-10 16:06:48 |
| R48.htm | 6419 | 2023-05-10 16:06:48 |
| R49.htm | 43058 | 2023-05-10 16:06:48 |
| R5.htm | 28510 | 2023-05-10 16:06:48 |
| R50.htm | 19480 | 2023-05-10 16:06:48 |
| R51.htm | 11386 | 2023-05-10 16:06:48 |
| R52.htm | 13160 | 2023-05-10 16:06:48 |
| R53.htm | 42106 | 2023-05-10 16:06:48 |
| R54.htm | 31696 | 2023-05-10 16:06:48 |
| R55.htm | 13176 | 2023-05-10 16:06:48 |
| R56.htm | 8727 | 2023-05-10 16:06:48 |
| R6.htm | 51589 | 2023-05-10 16:06:48 |
| R7.htm | 94623 | 2023-05-10 16:06:48 |
| R8.htm | 13601 | 2023-05-10 16:06:48 |
| R9.htm | 44771 | 2023-05-10 16:06:48 |
| report.css | 2767 | 2023-05-10 16:06:48 |
| Show.js | 1085 | 2023-05-10 16:06:48 |