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| 0000076063-22-000010-index.html | 2022-02-18 12:28:09 | |
| 0000076063-22-000010.txt | 2022-02-18 12:28:09 | |
 0000076063-22-000010-xbrl.zip | 247245 | 2022-02-18 12:28:09 |
| FilingSummary.xml | 39565 | 2022-02-18 12:28:09 |
| Financial_Report.xlsx | 83671 | 2022-02-18 12:28:09 |
| MetaLinks.json | 609567 | 2022-02-18 12:28:09 |
| pepl-20211231.htm | 1224149 | 2022-02-18 12:28:09 |
| pepl-20211231.xsd | 48184 | 2022-02-18 12:28:09 |
| pepl-20211231_cal.xml | 68243 | 2022-02-18 12:28:09 |
| pepl-20211231_def.xml | 208478 | 2022-02-18 12:28:09 |
| pepl-20211231_htm.xml | 987866 | 2022-02-18 12:28:09 |
| pepl-20211231_lab.xml | 503620 | 2022-02-18 12:28:09 |
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| pepl12312021ex311.htm | 10994 | 2022-02-18 12:28:09 |
| pepl12312021ex312.htm | 10967 | 2022-02-18 12:28:09 |
| pepl12312021ex313.htm | 11074 | 2022-02-18 12:28:09 |
| pepl12312021ex321.htm | 5284 | 2022-02-18 12:28:09 |
| pepl12312021ex322.htm | 5257 | 2022-02-18 12:28:09 |
| pepl12312021ex323.htm | 5635 | 2022-02-18 12:28:09 |
| R1.htm | 58447 | 2022-02-18 12:28:09 |
| R10.htm | 83791 | 2022-02-18 12:28:09 |
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| report.css | 2767 | 2022-02-18 12:28:09 |
| Show.js | 1085 | 2022-02-18 12:28:09 |