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|---|---|---|
 0000071829-20-000086-index-headers.html | 2020-08-03 16:34:16 | |
| 0000071829-20-000086-index.html | 2020-08-03 16:34:16 | |
| 0000071829-20-000086.txt | 2020-08-03 16:34:16 | |
 0000071829-20-000086-xbrl.zip | 45938 | 2020-08-03 16:34:16 |
| a2020q28k-erex991.htm | 547347 | 2020-08-03 16:34:16 |
 ex99-1img001a101.jpg | 5552 | 2020-08-03 16:34:16 |
| FilingSummary.xml | 1839 | 2020-08-03 16:34:16 |
| Financial_Report.xlsx | 5599 | 2020-08-03 16:34:16 |
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| nr-20200803.htm | 52331 | 2020-08-03 16:34:16 |
| nr-20200803.xsd | 2564 | 2020-08-03 16:34:16 |
| nr-20200803_cal.xml | 718 | 2020-08-03 16:34:16 |
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| nr-20200803_htm.xml | 14045 | 2020-08-03 16:34:16 |
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| nr-20200803_pre.xml | 16444 | 2020-08-03 16:34:16 |
| R1.htm | 45445 | 2020-08-03 16:34:16 |
| report.css | 2767 | 2020-08-03 16:34:16 |
| Show.js | 1085 | 2020-08-03 16:34:16 |