Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001910277-22-000005-index-headers.html | 2022-05-09 16:24:00 | |
| 0001910277-22-000005-index.html | 2022-05-09 16:24:00 | |
| 0001910277-22-000005.txt | 2022-05-09 16:24:00 | |
 0001910277-22-000005-xbrl.zip | 205665 | 2022-05-09 16:24:00 |
| FilingSummary.xml | 1803 | 2022-05-09 16:24:00 |
| Financial_Report.xlsx | 5683 | 2022-05-09 16:24:00 |
| MetaLinks.json | 17497 | 2022-05-09 16:24:00 |
 postannualmtg2019image1a05.jpg | 208294 | 2022-05-09 16:24:00 |
| pra-20220331xex991.htm | 324892 | 2022-05-09 16:24:00 |
| pra-20220509.htm | 33627 | 2022-05-09 16:24:00 |
| pra-20220509.xsd | 2008 | 2022-05-09 16:24:00 |
 pra-20220509_g1.jpg | 208294 | 2022-05-09 16:24:00 |
| pra-20220509_htm.xml | 11445 | 2022-05-09 16:24:00 |
| pra-20220509_lab.xml | 24137 | 2022-05-09 16:24:00 |
| pra-20220509_pre.xml | 12608 | 2022-05-09 16:24:00 |
| R1.htm | 38737 | 2022-05-09 16:24:00 |
| report.css | 2767 | 2022-05-09 16:24:00 |
| Show.js | 1085 | 2022-05-09 16:24:00 |