Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000047518-20-000075-index-headers.html | 2020-07-31 10:26:41 | |
| 0000047518-20-000075-index.html | 2020-07-31 10:26:41 | |
| 0000047518-20-000075.txt | 2020-07-31 10:26:41 | |
 0000047518-20-000075-xbrl.zip | 416381 | 2020-07-31 10:26:41 |
| exhibit311q32020.htm | 13054 | 2020-07-31 10:26:41 |
| exhibit312q32020.htm | 12912 | 2020-07-31 10:26:41 |
| exhibit321q32020.htm | 7519 | 2020-07-31 10:26:41 |
| exhibit322q32020.htm | 7487 | 2020-07-31 10:26:41 |
| FilingSummary.xml | 38634 | 2020-07-31 10:26:41 |
| Financial_Report.xlsx | 106830 | 2020-07-31 10:26:41 |
| hrc-20200630.htm | 3066252 | 2020-07-31 10:26:41 |
| hrc-20200630.xsd | 48967 | 2020-07-31 10:26:41 |
| hrc-20200630_cal.xml | 76995 | 2020-07-31 10:26:41 |
| hrc-20200630_def.xml | 465963 | 2020-07-31 10:26:41 |
 hrc-20200630_g1.jpg | 73056 | 2020-07-31 10:26:41 |
| hrc-20200630_htm.xml | 2563744 | 2020-07-31 10:26:41 |
| hrc-20200630_lab.xml | 757548 | 2020-07-31 10:26:41 |
| hrc-20200630_pre.xml | 608162 | 2020-07-31 10:26:41 |
| MetaLinks.json | 692908 | 2020-07-31 10:26:41 |
| R1.htm | 53770 | 2020-07-31 10:26:41 |
| R10.htm | 66928 | 2020-07-31 10:26:41 |
| R11.htm | 22076 | 2020-07-31 10:26:41 |
| R12.htm | 41237 | 2020-07-31 10:26:41 |
| R13.htm | 49142 | 2020-07-31 10:26:41 |
| R14.htm | 45455 | 2020-07-31 10:26:41 |
| R15.htm | 333221 | 2020-07-31 10:26:41 |
| R16.htm | 37247 | 2020-07-31 10:26:41 |
| R17.htm | 6168 | 2020-07-31 10:26:41 |
| R18.htm | 39991 | 2020-07-31 10:26:41 |
| R19.htm | 18242 | 2020-07-31 10:26:41 |
| R2.htm | 58775 | 2020-07-31 10:26:41 |
| R20.htm | 110802 | 2020-07-31 10:26:41 |
| R21.htm | 7001 | 2020-07-31 10:26:41 |
| R22.htm | 33610 | 2020-07-31 10:26:41 |
| R23.htm | 32497 | 2020-07-31 10:26:41 |
| R24.htm | 11700 | 2020-07-31 10:26:41 |
| R25.htm | 35260 | 2020-07-31 10:26:41 |
| R26.htm | 46120 | 2020-07-31 10:26:41 |
| R27.htm | 14869 | 2020-07-31 10:26:41 |
| R28.htm | 36666 | 2020-07-31 10:26:41 |
| R29.htm | 52401 | 2020-07-31 10:26:41 |
| R3.htm | 22697 | 2020-07-31 10:26:41 |
| R30.htm | 41595 | 2020-07-31 10:26:41 |
| R31.htm | 334786 | 2020-07-31 10:26:41 |
| R32.htm | 34235 | 2020-07-31 10:26:41 |
| R33.htm | 39671 | 2020-07-31 10:26:41 |
| R34.htm | 15823 | 2020-07-31 10:26:41 |
| R35.htm | 104815 | 2020-07-31 10:26:41 |
| R36.htm | 32174 | 2020-07-31 10:26:41 |
| R37.htm | 25688 | 2020-07-31 10:26:41 |
| R38.htm | 15549 | 2020-07-31 10:26:41 |
| R39.htm | 35844 | 2020-07-31 10:26:41 |
| R4.htm | 107270 | 2020-07-31 10:26:41 |
| R40.htm | 178913 | 2020-07-31 10:26:41 |
| R41.htm | 4927 | 2020-07-31 10:26:41 |
| R42.htm | 13356 | 2020-07-31 10:26:41 |
| R43.htm | 7000 | 2020-07-31 10:26:41 |
| R44.htm | 32167 | 2020-07-31 10:26:41 |
| R45.htm | 5942 | 2020-07-31 10:26:41 |
| R46.htm | 54868 | 2020-07-31 10:26:41 |
| R47.htm | 16683 | 2020-07-31 10:26:41 |
| R48.htm | 37241 | 2020-07-31 10:26:41 |
| R49.htm | 121700 | 2020-07-31 10:26:41 |
| R5.htm | 110312 | 2020-07-31 10:26:41 |
| R50.htm | 29933 | 2020-07-31 10:26:41 |
| R51.htm | 4752 | 2020-07-31 10:26:41 |
| R52.htm | 97029 | 2020-07-31 10:26:41 |
| R53.htm | 91600 | 2020-07-31 10:26:41 |
| R54.htm | 21705 | 2020-07-31 10:26:41 |
| R55.htm | 23722 | 2020-07-31 10:26:41 |
| R56.htm | 13180 | 2020-07-31 10:26:41 |
| R57.htm | 25392 | 2020-07-31 10:26:41 |
| R58.htm | 4365 | 2020-07-31 10:26:41 |
| R59.htm | 7320 | 2020-07-31 10:26:41 |
| R6.htm | 98684 | 2020-07-31 10:26:41 |
| R60.htm | 7353 | 2020-07-31 10:26:41 |
| R61.htm | 9231 | 2020-07-31 10:26:41 |
| R62.htm | 48737 | 2020-07-31 10:26:41 |
| R63.htm | 7366 | 2020-07-31 10:26:41 |
| R7.htm | 67640 | 2020-07-31 10:26:41 |
| R8.htm | 14692 | 2020-07-31 10:26:41 |
| R9.htm | 35253 | 2020-07-31 10:26:41 |
| R9999.htm | 4025 | 2020-07-31 10:26:41 |
| report.css | 2767 | 2020-07-31 10:26:41 |
| Show.js | 1085 | 2020-07-31 10:26:41 |