Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000822818-20-000020-index-headers.html | 2020-08-05 11:00:27 | |
| 0000822818-20-000020-index.html | 2020-08-05 11:00:27 | |
| 0000822818-20-000020.txt | 2020-08-05 11:00:27 | |
 0000822818-20-000020-xbrl.zip | 308672 | 2020-08-05 11:00:27 |
| clh-20200630.htm | 2639555 | 2020-08-05 11:00:27 |
| clh-20200630.xsd | 54355 | 2020-08-05 11:00:27 |
| clh-20200630_cal.xml | 107299 | 2020-08-05 11:00:27 |
| clh-20200630_def.xml | 251056 | 2020-08-05 11:00:27 |
| clh-20200630_htm.xml | 2342506 | 2020-08-05 11:00:27 |
| clh-20200630_lab.xml | 620254 | 2020-08-05 11:00:27 |
| clh-20200630_pre.xml | 411751 | 2020-08-05 11:00:27 |
| clh-6302020ex311.htm | 12760 | 2020-08-05 11:00:27 |
| clh-6302020ex312.htm | 12775 | 2020-08-05 11:00:27 |
| clh-6302020ex32.htm | 15379 | 2020-08-05 11:00:27 |
| FilingSummary.xml | 41258 | 2020-08-05 11:00:27 |
| Financial_Report.xlsx | 100635 | 2020-08-05 11:00:27 |
| MetaLinks.json | 626930 | 2020-08-05 11:00:27 |
| R1.htm | 52205 | 2020-08-05 11:00:27 |
| R10.htm | 6620 | 2020-08-05 11:00:27 |
| R11.htm | 218399 | 2020-08-05 11:00:27 |
| R12.htm | 6610 | 2020-08-05 11:00:27 |
| R13.htm | 16522 | 2020-08-05 11:00:27 |
| R14.htm | 31393 | 2020-08-05 11:00:27 |
| R15.htm | 75142 | 2020-08-05 11:00:27 |
| R16.htm | 19086 | 2020-08-05 11:00:27 |
| R17.htm | 32747 | 2020-08-05 11:00:27 |
| R18.htm | 30957 | 2020-08-05 11:00:27 |
| R19.htm | 29398 | 2020-08-05 11:00:27 |
| R2.htm | 106809 | 2020-08-05 11:00:27 |
| R20.htm | 9180 | 2020-08-05 11:00:27 |
| R21.htm | 41550 | 2020-08-05 11:00:27 |
| R22.htm | 43526 | 2020-08-05 11:00:27 |
| R23.htm | 31119 | 2020-08-05 11:00:27 |
| R24.htm | 22551 | 2020-08-05 11:00:27 |
| R25.htm | 176261 | 2020-08-05 11:00:27 |
| R26.htm | 16370 | 2020-08-05 11:00:27 |
| R27.htm | 205861 | 2020-08-05 11:00:27 |
| R28.htm | 17120 | 2020-08-05 11:00:27 |
| R29.htm | 30378 | 2020-08-05 11:00:27 |
| R3.htm | 19867 | 2020-08-05 11:00:27 |
| R30.htm | 120309 | 2020-08-05 11:00:27 |
| R31.htm | 19107 | 2020-08-05 11:00:27 |
| R32.htm | 31653 | 2020-08-05 11:00:27 |
| R33.htm | 31354 | 2020-08-05 11:00:27 |
| R34.htm | 26877 | 2020-08-05 11:00:27 |
| R35.htm | 39719 | 2020-08-05 11:00:27 |
| R36.htm | 44768 | 2020-08-05 11:00:27 |
| R37.htm | 28176 | 2020-08-05 11:00:27 |
| R38.htm | 176011 | 2020-08-05 11:00:27 |
| R39.htm | 3969 | 2020-08-05 11:00:27 |
| R4.htm | 68904 | 2020-08-05 11:00:27 |
| R40.htm | 66167 | 2020-08-05 11:00:27 |
| R41.htm | 9607 | 2020-08-05 11:00:27 |
| R42.htm | 4076 | 2020-08-05 11:00:27 |
| R43.htm | 12770 | 2020-08-05 11:00:27 |
| R44.htm | 12395 | 2020-08-05 11:00:27 |
| R45.htm | 33136 | 2020-08-05 11:00:27 |
| R46.htm | 4444 | 2020-08-05 11:00:27 |
| R47.htm | 20573 | 2020-08-05 11:00:27 |
| R48.htm | 25676 | 2020-08-05 11:00:27 |
| R49.htm | 5661 | 2020-08-05 11:00:27 |
| R5.htm | 5022 | 2020-08-05 11:00:27 |
| R50.htm | 17185 | 2020-08-05 11:00:27 |
| R51.htm | 19388 | 2020-08-05 11:00:27 |
| R52.htm | 30439 | 2020-08-05 11:00:27 |
| R53.htm | 26827 | 2020-08-05 11:00:27 |
| R54.htm | 25809 | 2020-08-05 11:00:27 |
| R55.htm | 39573 | 2020-08-05 11:00:27 |
| R56.htm | 11648 | 2020-08-05 11:00:27 |
| R57.htm | 33974 | 2020-08-05 11:00:27 |
| R58.htm | 9881 | 2020-08-05 11:00:27 |
| R59.htm | 44121 | 2020-08-05 11:00:27 |
| R6.htm | 33876 | 2020-08-05 11:00:27 |
| R60.htm | 7602 | 2020-08-05 11:00:27 |
| R61.htm | 12358 | 2020-08-05 11:00:27 |
| R62.htm | 33342 | 2020-08-05 11:00:27 |
| R63.htm | 30900 | 2020-08-05 11:00:27 |
| R64.htm | 53887 | 2020-08-05 11:00:27 |
| R65.htm | 4833 | 2020-08-05 11:00:27 |
| R66.htm | 29769 | 2020-08-05 11:00:27 |
| R67.htm | 32067 | 2020-08-05 11:00:27 |
| R68.htm | 23711 | 2020-08-05 11:00:27 |
| R69.htm | 11478 | 2020-08-05 11:00:27 |
| R7.htm | 108664 | 2020-08-05 11:00:27 |
| R8.htm | 64623 | 2020-08-05 11:00:27 |
| R9.htm | 7964 | 2020-08-05 11:00:27 |
| report.css | 2767 | 2020-08-05 11:00:27 |
| Show.js | 1085 | 2020-08-05 11:00:27 |