Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-23-280904-index-headers.html | 2023-11-20 21:50:00 | |
| 0001193125-23-280904-index.html | 2023-11-20 21:50:00 | |
| 0001193125-23-280904.txt | 2023-11-20 21:50:00 | |
 0001193125-23-280904-xbrl.zip | 72812 | 2023-11-20 21:50:00 |
| cpk-20231120.xsd | 2839 | 2023-11-20 21:50:00 |
| cpk-20231120_lab.xml | 17236 | 2023-11-20 21:50:00 |
| cpk-20231120_pre.xml | 10806 | 2023-11-20 21:50:00 |
| d476278d8k.htm | 32991 | 2023-11-20 21:50:00 |
| d476278d8k_htm.xml | 3313 | 2023-11-20 21:50:00 |
| d476278dex41.htm | 447737 | 2023-11-20 21:50:00 |
| FilingSummary.xml | 1707 | 2023-11-20 21:50:00 |
| Financial_Report.xlsx | 5699 | 2023-11-20 21:50:00 |
| MetaLinks.json | 18192 | 2023-11-20 21:50:00 |
| R1.htm | 38096 | 2023-11-20 21:50:00 |
| report.css | 2767 | 2023-11-20 21:50:00 |
| Show.js | 1084 | 2023-11-20 21:50:00 |