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|---|---|---|
 0001193125-20-139377-index-headers.html | 2020-05-11 18:31:12 | |
| 0001193125-20-139377-index.html | 2020-05-11 18:31:12 | |
| 0001193125-20-139377.txt | 2020-05-11 18:31:12 | |
 0001193125-20-139377-xbrl.zip | 20975 | 2020-05-11 18:31:12 |
| d892921d8k.htm | 26427 | 2020-05-11 18:31:12 |
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| d892921dex991.htm | 65367 | 2020-05-11 18:31:12 |
| FilingSummary.xml | 1735 | 2020-05-11 18:31:12 |
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| pgen-20200506.xsd | 3093 | 2020-05-11 18:31:12 |
| pgen-20200506_lab.xml | 17373 | 2020-05-11 18:31:12 |
| pgen-20200506_pre.xml | 10968 | 2020-05-11 18:31:12 |
| R1.htm | 38609 | 2020-05-11 18:31:12 |
| report.css | 2767 | 2020-05-11 18:31:12 |
| Show.js | 1085 | 2020-05-11 18:31:12 |