Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000047518-21-000074-index-headers.html | 2021-07-30 08:38:56 | |
| 0000047518-21-000074-index.html | 2021-07-30 08:38:56 | |
| 0000047518-21-000074.txt | 2021-07-30 08:38:56 | |
 0000047518-21-000074-xbrl.zip | 378012 | 2021-07-30 08:38:56 |
| exhibit311q32021.htm | 10996 | 2021-07-30 08:38:56 |
| exhibit312q32021.htm | 10854 | 2021-07-30 08:38:56 |
| exhibit321q32021.htm | 6305 | 2021-07-30 08:38:56 |
| exhibit322q32021.htm | 6326 | 2021-07-30 08:38:56 |
| FilingSummary.xml | 33599 | 2021-07-30 08:38:56 |
| Financial_Report.xlsx | 91876 | 2021-07-30 08:38:56 |
| hrc-20210630.htm | 2170743 | 2021-07-30 08:38:56 |
| hrc-20210630.xsd | 44888 | 2021-07-30 08:38:56 |
| hrc-20210630_cal.xml | 58982 | 2021-07-30 08:38:56 |
| hrc-20210630_def.xml | 429014 | 2021-07-30 08:38:56 |
 hrc-20210630_g1.jpg | 73056 | 2021-07-30 08:38:56 |
| hrc-20210630_htm.xml | 1769447 | 2021-07-30 08:38:56 |
| hrc-20210630_lab.xml | 725983 | 2021-07-30 08:38:56 |
| hrc-20210630_pre.xml | 583225 | 2021-07-30 08:38:56 |
| MetaLinks.json | 714481 | 2021-07-30 08:38:56 |
| R1.htm | 50948 | 2021-07-30 08:38:56 |
| R10.htm | 22514 | 2021-07-30 08:38:56 |
| R11.htm | 30194 | 2021-07-30 08:38:56 |
| R12.htm | 40733 | 2021-07-30 08:38:56 |
| R13.htm | 220362 | 2021-07-30 08:38:56 |
| R14.htm | 30522 | 2021-07-30 08:38:56 |
| R15.htm | 7717 | 2021-07-30 08:38:56 |
| R16.htm | 29582 | 2021-07-30 08:38:56 |
| R17.htm | 81217 | 2021-07-30 08:38:56 |
| R18.htm | 9933 | 2021-07-30 08:38:56 |
| R19.htm | 46480 | 2021-07-30 08:38:56 |
| R2.htm | 72055 | 2021-07-30 08:38:56 |
| R20.htm | 33324 | 2021-07-30 08:38:56 |
| R21.htm | 11967 | 2021-07-30 08:38:56 |
| R22.htm | 26668 | 2021-07-30 08:38:56 |
| R23.htm | 37531 | 2021-07-30 08:38:56 |
| R24.htm | 221569 | 2021-07-30 08:38:56 |
| R25.htm | 27467 | 2021-07-30 08:38:56 |
| R26.htm | 28225 | 2021-07-30 08:38:56 |
| R27.htm | 72799 | 2021-07-30 08:38:56 |
| R28.htm | 33845 | 2021-07-30 08:38:56 |
| R29.htm | 46222 | 2021-07-30 08:38:56 |
| R3.htm | 28611 | 2021-07-30 08:38:56 |
| R30.htm | 12926 | 2021-07-30 08:38:56 |
| R31.htm | 35015 | 2021-07-30 08:38:56 |
| R32.htm | 50218 | 2021-07-30 08:38:56 |
| R33.htm | 5083 | 2021-07-30 08:38:56 |
| R34.htm | 34324 | 2021-07-30 08:38:56 |
| R35.htm | 34801 | 2021-07-30 08:38:56 |
| R36.htm | 57118 | 2021-07-30 08:38:56 |
| R37.htm | 7773 | 2021-07-30 08:38:56 |
| R38.htm | 15608 | 2021-07-30 08:38:56 |
| R39.htm | 38705 | 2021-07-30 08:38:56 |
| R4.htm | 118259 | 2021-07-30 08:38:56 |
| R40.htm | 4374 | 2021-07-30 08:38:56 |
| R41.htm | 34893 | 2021-07-30 08:38:56 |
| R42.htm | 4753 | 2021-07-30 08:38:56 |
| R43.htm | 108097 | 2021-07-30 08:38:56 |
| R44.htm | 118859 | 2021-07-30 08:38:56 |
| R45.htm | 20432 | 2021-07-30 08:38:56 |
| R46.htm | 25806 | 2021-07-30 08:38:56 |
| R47.htm | 5870 | 2021-07-30 08:38:56 |
| R48.htm | 34188 | 2021-07-30 08:38:56 |
| R49.htm | 4365 | 2021-07-30 08:38:56 |
| R5.htm | 101938 | 2021-07-30 08:38:56 |
| R50.htm | 4771 | 2021-07-30 08:38:56 |
| R51.htm | 7354 | 2021-07-30 08:38:56 |
| R52.htm | 9283 | 2021-07-30 08:38:56 |
| R53.htm | 63104 | 2021-07-30 08:38:56 |
| R54.htm | 7366 | 2021-07-30 08:38:56 |
| R6.htm | 102418 | 2021-07-30 08:38:56 |
| R7.htm | 35123 | 2021-07-30 08:38:56 |
| R8.htm | 31962 | 2021-07-30 08:38:56 |
| R9.htm | 17357 | 2021-07-30 08:38:56 |
| R9999.htm | 19174 | 2021-07-30 08:38:56 |
| report.css | 2767 | 2021-07-30 08:38:56 |
| Show.js | 1085 | 2021-07-30 08:38:56 |