Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000071829-21-000007-index-headers.html | 2021-02-11 16:30:36 | |
| 0000071829-21-000007-index.html | 2021-02-11 16:30:36 | |
| 0000071829-21-000007.txt | 2021-02-11 16:30:36 | |
 0000071829-21-000007-xbrl.zip | 41317 | 2021-02-11 16:30:36 |
| a2020q48k-erex991.htm | 307887 | 2021-02-11 16:30:36 |
| FilingSummary.xml | 1839 | 2021-02-11 16:30:36 |
| Financial_Report.xlsx | 5605 | 2021-02-11 16:30:36 |
| MetaLinks.json | 21807 | 2021-02-11 16:30:36 |
 newparklogo20201.jpg | 10502 | 2021-02-11 16:30:36 |
| nr-20210211.htm | 43019 | 2021-02-11 16:30:36 |
| nr-20210211.xsd | 2564 | 2021-02-11 16:30:36 |
| nr-20210211_cal.xml | 718 | 2021-02-11 16:30:36 |
| nr-20210211_def.xml | 6260 | 2021-02-11 16:30:36 |
 nr-20210211_g1.jpg | 11318 | 2021-02-11 16:30:36 |
| nr-20210211_htm.xml | 14067 | 2021-02-11 16:30:36 |
| nr-20210211_lab.xml | 31202 | 2021-02-11 16:30:36 |
| nr-20210211_pre.xml | 16499 | 2021-02-11 16:30:36 |
| R1.htm | 45492 | 2021-02-11 16:30:36 |
| report.css | 2767 | 2021-02-11 16:30:36 |
| Show.js | 1085 | 2021-02-11 16:30:36 |