Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-295545-index-headers.html | 2020-11-17 09:01:08 | |
| 0001193125-20-295545-index.html | 2020-11-17 09:01:08 | |
| 0001193125-20-295545.txt | 2020-11-17 09:01:08 | |
 0001193125-20-295545-xbrl.zip | 15389 | 2020-11-17 09:01:08 |
| cpk-20201117.xsd | 3055 | 2020-11-17 09:01:08 |
| cpk-20201117_lab.xml | 17374 | 2020-11-17 09:01:08 |
| cpk-20201117_pre.xml | 10944 | 2020-11-17 09:01:08 |
| d155612d8k.htm | 25979 | 2020-11-17 09:01:08 |
| d155612d8k_htm.xml | 3286 | 2020-11-17 09:01:08 |
| d155612dex991.htm | 25774 | 2020-11-17 09:01:08 |
| FilingSummary.xml | 1720 | 2020-11-17 09:01:08 |
| Financial_Report.xlsx | 5463 | 2020-11-17 09:01:08 |
 g155612ex99_1s10g1.jpg | 392608 | 2020-11-17 09:01:08 |
 g155612ex99_1s11g1.jpg | 370655 | 2020-11-17 09:01:08 |
 g155612ex99_1s12g1.jpg | 320044 | 2020-11-17 09:01:08 |
 g155612ex99_1s13g1.jpg | 503866 | 2020-11-17 09:01:08 |
 g155612ex99_1s14g1.jpg | 436891 | 2020-11-17 09:01:08 |
 g155612ex99_1s15g1.jpg | 549353 | 2020-11-17 09:01:08 |
 g155612ex99_1s16g1.jpg | 394350 | 2020-11-17 09:01:08 |
 g155612ex99_1s17g1.jpg | 493708 | 2020-11-17 09:01:08 |
 g155612ex99_1s18g1.jpg | 308535 | 2020-11-17 09:01:08 |
 g155612ex99_1s19g1.jpg | 168448 | 2020-11-17 09:01:08 |
 g155612ex99_1s1g1.jpg | 183847 | 2020-11-17 09:01:08 |
 g155612ex99_1s20g1.jpg | 188873 | 2020-11-17 09:01:08 |
 g155612ex99_1s21g1.jpg | 260801 | 2020-11-17 09:01:08 |
 g155612ex99_1s22g1.jpg | 333701 | 2020-11-17 09:01:08 |
 g155612ex99_1s23g1.jpg | 196693 | 2020-11-17 09:01:08 |
 g155612ex99_1s24g1.jpg | 218242 | 2020-11-17 09:01:08 |
 g155612ex99_1s25g1.jpg | 163827 | 2020-11-17 09:01:08 |
 g155612ex99_1s2g1.jpg | 702250 | 2020-11-17 09:01:08 |
 g155612ex99_1s3g1.jpg | 282254 | 2020-11-17 09:01:08 |
 g155612ex99_1s4g1.jpg | 424425 | 2020-11-17 09:01:08 |
 g155612ex99_1s5g1.jpg | 359408 | 2020-11-17 09:01:08 |
 g155612ex99_1s6g1.jpg | 363464 | 2020-11-17 09:01:08 |
 g155612ex99_1s7g1.jpg | 561367 | 2020-11-17 09:01:08 |
 g155612ex99_1s8g1.jpg | 351481 | 2020-11-17 09:01:08 |
 g155612ex99_1s9g1.jpg | 310887 | 2020-11-17 09:01:08 |
| MetaLinks.json | 18172 | 2020-11-17 09:01:08 |
| R1.htm | 38631 | 2020-11-17 09:01:08 |
| report.css | 2767 | 2020-11-17 09:01:08 |
| Show.js | 1085 | 2020-11-17 09:01:08 |