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| 0001104659-20-072745-index.html | 2020-06-12 11:49:33 | |
| 0001104659-20-072745.txt | 2020-06-12 11:49:33 | |
 0001104659-20-072745-xbrl.zip | 89418 | 2020-06-12 11:49:33 |
| FilingSummary.xml | 1793 | 2020-06-12 11:49:33 |
| Financial_Report.xlsx | 5784 | 2020-06-12 11:49:33 |
| MetaLinks.json | 38770 | 2020-06-12 11:49:33 |
| pfg-20200609.xsd | 3186 | 2020-06-12 11:49:33 |
| pfg-20200609_lab.xml | 34591 | 2020-06-12 11:49:33 |
| pfg-20200609_pre.xml | 22711 | 2020-06-12 11:49:33 |
| R1.htm | 39613 | 2020-06-12 11:49:33 |
| report.css | 2767 | 2020-06-12 11:49:33 |
| Show.js | 1085 | 2020-06-12 11:49:33 |
| tm2021713-6_8k.htm | 39059 | 2020-06-12 11:49:33 |
| tm2021713-6_8k_htm.xml | 3762 | 2020-06-12 11:49:33 |
| tm2021713d6_ex1-1.htm | 265798 | 2020-06-12 11:49:33 |
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| tm2021713d6_ex4-2.htm | 157184 | 2020-06-12 11:49:33 |
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| tm2021713d6_ex5-1.htm | 12123 | 2020-06-12 11:49:33 |
| tm2021713d6_ex5-2.htm | 11102 | 2020-06-12 11:49:33 |
 tm2021713d6_ex5-2img001.jpg | 2723 | 2020-06-12 11:49:33 |