Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000822818-21-000039-index-headers.html | 2021-08-04 08:42:34 | |
| 0000822818-21-000039-index.html | 2021-08-04 08:42:34 | |
| 0000822818-21-000039.txt | 2021-08-04 08:42:34 | |
 0000822818-21-000039-xbrl.zip | 85420 | 2021-08-04 08:42:34 |
| clh-20210803.htm | 42125 | 2021-08-04 08:42:34 |
| clh-20210803.xsd | 1911 | 2021-08-04 08:42:34 |
| clh-20210803_htm.xml | 10752 | 2021-08-04 08:42:34 |
| clh-20210803_lab.xml | 24137 | 2021-08-04 08:42:34 |
| clh-20210803_pre.xml | 12515 | 2021-08-04 08:42:34 |
| ex27_hpcspax8321.htm | 617267 | 2021-08-04 08:42:34 |
| ex991_8421pressrelease.htm | 22578 | 2021-08-04 08:42:34 |
| FilingSummary.xml | 1674 | 2021-08-04 08:42:34 |
| Financial_Report.xlsx | 5658 | 2021-08-04 08:42:34 |
 image.jpg | 9996 | 2021-08-04 08:42:34 |
| MetaLinks.json | 16767 | 2021-08-04 08:42:34 |
| R1.htm | 38558 | 2021-08-04 08:42:34 |
| report.css | 2767 | 2021-08-04 08:42:34 |
| Show.js | 1085 | 2021-08-04 08:42:34 |