Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-24-014607-index-headers.html | 2024-02-13 16:30:10 | |
| 0000950170-24-014607-index.html | 2024-02-13 16:30:10 | |
| 0000950170-24-014607.txt | 2024-02-13 16:30:10 | |
 0000950170-24-014607-xbrl.zip | 10456 | 2024-02-13 16:30:10 |
| FilingSummary.xml | 1658 | 2024-02-13 16:30:10 |
| Financial_Report.xlsx | 5731 | 2024-02-13 16:30:10 |
 img180885081_0.jpg | 16346 | 2024-02-13 16:30:10 |
| kop-20240213.htm | 41245 | 2024-02-13 16:30:10 |
| kop-20240213.xsd | 25025 | 2024-02-13 16:30:10 |
| kop-20240213_htm.xml | 4718 | 2024-02-13 16:30:10 |
| kop-ex99_1.htm | 17476 | 2024-02-13 16:30:10 |
| MetaLinks.json | 17930 | 2024-02-13 16:30:10 |
| R1.htm | 39685 | 2024-02-13 16:30:10 |
| report.css | 2766 | 2024-02-13 16:30:10 |
| Show.js | 1084 | 2024-02-13 16:30:10 |