Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-23-276703-index-headers.html | 2023-11-14 08:53:28 | |
| 0001193125-23-276703-index.html | 2023-11-14 08:53:28 | |
| 0001193125-23-276703.txt | 2023-11-14 08:53:28 | |
 0001193125-23-276703-xbrl.zip | 50448 | 2023-11-14 08:53:28 |
| cpk-20231109.xsd | 2839 | 2023-11-14 08:53:28 |
| cpk-20231109_lab.xml | 17236 | 2023-11-14 08:53:28 |
| cpk-20231109_pre.xml | 10806 | 2023-11-14 08:53:28 |
| d294380d8k.htm | 28147 | 2023-11-14 08:53:28 |
| d294380d8k_htm.xml | 3313 | 2023-11-14 08:53:28 |
| d294380dex11.htm | 205039 | 2023-11-14 08:53:28 |
| d294380dex51.htm | 9748 | 2023-11-14 08:53:28 |
| FilingSummary.xml | 1707 | 2023-11-14 08:53:28 |
| Financial_Report.xlsx | 5700 | 2023-11-14 08:53:28 |
 g294380dsp052.jpg | 3872 | 2023-11-14 08:53:28 |
| MetaLinks.json | 18192 | 2023-11-14 08:53:28 |
| R1.htm | 38097 | 2023-11-14 08:53:28 |
| report.css | 2767 | 2023-11-14 08:53:28 |
| Show.js | 1085 | 2023-11-14 08:53:28 |