Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000354707-25-000039-index-headers.html | 2025-08-07 16:15:45 | |
| 0000354707-25-000039-index.html | 2025-08-07 16:15:45 | |
| 0000354707-25-000039.txt | 2025-08-07 16:15:45 | |
 0000354707-25-000039-xbrl.zip | 547236 | 2025-08-07 16:15:45 |
| a01hei2q25ex311.htm | 10583 | 2025-08-07 16:15:45 |
| a02hei2q25ex312.htm | 10563 | 2025-08-07 16:15:45 |
| a03hei2q25ex321.htm | 6573 | 2025-08-07 16:15:45 |
| a04heco2q25ex313.htm | 10503 | 2025-08-07 16:15:45 |
| a05heco2q25ex314.htm | 10225 | 2025-08-07 16:15:45 |
| a06heco2q25ex322.htm | 6622 | 2025-08-07 16:15:45 |
| a07hei2q25ex41.htm | 30458 | 2025-08-07 16:15:45 |
| a08hei2q25ex42.htm | 16101 | 2025-08-07 16:15:45 |
| FilingSummary.xml | 47055 | 2025-08-07 16:15:45 |
| he-20250630.htm | 4208999 | 2025-08-07 16:15:45 |
| he-20250630.xsd | 102292 | 2025-08-07 16:15:45 |
| he-20250630_cal.xml | 155619 | 2025-08-07 16:15:45 |
| he-20250630_def.xml | 707396 | 2025-08-07 16:15:45 |
| he-20250630_htm.xml | 5087960 | 2025-08-07 16:15:45 |
| he-20250630_lab.xml | 1101580 | 2025-08-07 16:15:45 |
| he-20250630_pre.xml | 926077 | 2025-08-07 16:15:45 |
| MetaLinks.json | 1326506 | 2025-08-07 16:15:45 |
| R1.htm | 62396 | 2025-08-07 16:15:45 |
| R10.htm | 26065 | 2025-08-07 16:15:45 |
| R11.htm | 10361 | 2025-08-07 16:15:45 |
| R12.htm | 171854 | 2025-08-07 16:15:45 |
| R13.htm | 15556 | 2025-08-07 16:15:45 |
| R14.htm | 52665 | 2025-08-07 16:15:45 |
| R15.htm | 107657 | 2025-08-07 16:15:45 |
| R16.htm | 4576 | 2025-08-07 16:15:45 |
| R17.htm | 13605 | 2025-08-07 16:15:45 |
| R18.htm | 90774 | 2025-08-07 16:15:45 |
| R19.htm | 177574 | 2025-08-07 16:15:45 |
| R2.htm | 125712 | 2025-08-07 16:15:45 |
| R20.htm | 1083187 | 2025-08-07 16:15:45 |
| R21.htm | 67568 | 2025-08-07 16:15:45 |
| R22.htm | 70085 | 2025-08-07 16:15:45 |
| R23.htm | 102640 | 2025-08-07 16:15:45 |
| R24.htm | 84115 | 2025-08-07 16:15:45 |
| R25.htm | 147158 | 2025-08-07 16:15:45 |
| R26.htm | 12048 | 2025-08-07 16:15:45 |
| R27.htm | 44590 | 2025-08-07 16:15:45 |
| R28.htm | 64804 | 2025-08-07 16:15:45 |
| R29.htm | 6226 | 2025-08-07 16:15:45 |
| R3.htm | 36327 | 2025-08-07 16:15:45 |
| R30.htm | 8465 | 2025-08-07 16:15:45 |
| R31.htm | 19709 | 2025-08-07 16:15:45 |
| R32.htm | 52183 | 2025-08-07 16:15:45 |
| R33.htm | 168147 | 2025-08-07 16:15:45 |
| R34.htm | 1034999 | 2025-08-07 16:15:45 |
| R35.htm | 59566 | 2025-08-07 16:15:45 |
| R36.htm | 67005 | 2025-08-07 16:15:45 |
| R37.htm | 97790 | 2025-08-07 16:15:45 |
| R38.htm | 77739 | 2025-08-07 16:15:45 |
| R39.htm | 146728 | 2025-08-07 16:15:45 |
| R4.htm | 20454 | 2025-08-07 16:15:45 |
| R40.htm | 44008 | 2025-08-07 16:15:45 |
| R41.htm | 56164 | 2025-08-07 16:15:45 |
| R42.htm | 118637 | 2025-08-07 16:15:45 |
| R43.htm | 33795 | 2025-08-07 16:15:45 |
| R44.htm | 61921 | 2025-08-07 16:15:45 |
| R45.htm | 84021 | 2025-08-07 16:15:45 |
| R46.htm | 97071 | 2025-08-07 16:15:45 |
| R47.htm | 24792 | 2025-08-07 16:15:45 |
| R48.htm | 11791 | 2025-08-07 16:15:45 |
| R49.htm | 9864 | 2025-08-07 16:15:45 |
| R5.htm | 160764 | 2025-08-07 16:15:45 |
| R50.htm | 15104 | 2025-08-07 16:15:45 |
| R51.htm | 57784 | 2025-08-07 16:15:45 |
| R52.htm | 23475 | 2025-08-07 16:15:45 |
| R53.htm | 27863 | 2025-08-07 16:15:45 |
| R54.htm | 117025 | 2025-08-07 16:15:45 |
| R55.htm | 41232 | 2025-08-07 16:15:45 |
| R56.htm | 27866 | 2025-08-07 16:15:45 |
| R57.htm | 166062 | 2025-08-07 16:15:45 |
| R58.htm | 58629 | 2025-08-07 16:15:45 |
| R59.htm | 358560 | 2025-08-07 16:15:45 |
| R6.htm | 22914 | 2025-08-07 16:15:45 |
| R60.htm | 47200 | 2025-08-07 16:15:45 |
| R61.htm | 105455 | 2025-08-07 16:15:45 |
| R62.htm | 26596 | 2025-08-07 16:15:45 |
| R63.htm | 79927 | 2025-08-07 16:15:45 |
| R64.htm | 48061 | 2025-08-07 16:15:45 |
| R65.htm | 36852 | 2025-08-07 16:15:45 |
| R66.htm | 40827 | 2025-08-07 16:15:45 |
| R67.htm | 69926 | 2025-08-07 16:15:45 |
| R68.htm | 28528 | 2025-08-07 16:15:45 |
| R69.htm | 37616 | 2025-08-07 16:15:45 |
| R7.htm | 40064 | 2025-08-07 16:15:45 |
| R70.htm | 49862 | 2025-08-07 16:15:45 |
| R71.htm | 18951 | 2025-08-07 16:15:45 |
| R72.htm | 20236 | 2025-08-07 16:15:45 |
| R73.htm | 49529 | 2025-08-07 16:15:45 |
| R74.htm | 21570 | 2025-08-07 16:15:45 |
| R75.htm | 6962 | 2025-08-07 16:15:45 |
| R76.htm | 45642 | 2025-08-07 16:15:45 |
| R77.htm | 57923 | 2025-08-07 16:15:45 |
| R8.htm | 117128 | 2025-08-07 16:15:45 |
| R9.htm | 103931 | 2025-08-07 16:15:45 |
| report.css | 2767 | 2025-08-07 16:15:45 |
| Show.js | 1085 | 2025-08-07 16:15:45 |