Parent Directory| Name | Size | Last Modified |
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| 0001104659-22-062270-index.html | 2022-05-18 08:30:41 | |
| 0001104659-22-062270.txt | 2022-05-18 08:30:41 | |
 0001104659-22-062270-xbrl.zip | 14895 | 2022-05-18 08:30:41 |
| FilingSummary.xml | 1643 | 2022-05-18 08:30:41 |
| Financial_Report.xlsx | 5644 | 2022-05-18 08:30:41 |
| MetaLinks.json | 38056 | 2022-05-18 08:30:41 |
| pfg-20220517.xsd | 3033 | 2022-05-18 08:30:41 |
| pfg-20220517_lab.xml | 34476 | 2022-05-18 08:30:41 |
| pfg-20220517_pre.xml | 22596 | 2022-05-18 08:30:41 |
| R1.htm | 38665 | 2022-05-18 08:30:41 |
| report.css | 2767 | 2022-05-18 08:30:41 |
| Show.js | 1084 | 2022-05-18 08:30:41 |
| tm2215895d1_8k.htm | 44929 | 2022-05-18 08:30:41 |
| tm2215895d1_8k_htm.xml | 3463 | 2022-05-18 08:30:41 |
| tm2215895d1_ex99.htm | 10209 | 2022-05-18 08:30:41 |