Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000071829-18-000045-index-headers.html | 2018-04-27 12:34:36 | |
| 0000071829-18-000045-index.html | 2018-04-27 12:34:36 | |
| 0000071829-18-000045.txt | 2018-04-27 12:34:36 | |
 0000071829-18-000045-xbrl.zip | 134311 | 2018-04-27 12:34:36 |
| a2018q110q.htm | 756217 | 2018-04-27 12:34:36 |
| a2018q110qexhibit311.htm | 11736 | 2018-04-27 12:34:36 |
| a2018q110qexhibit312.htm | 11855 | 2018-04-27 12:34:36 |
| a2018q110qexhibit321.htm | 6096 | 2018-04-27 12:34:36 |
| a2018q110qexhibit322.htm | 6038 | 2018-04-27 12:34:36 |
| a2018q110qexhibit951.htm | 50330 | 2018-04-27 12:34:36 |
| FilingSummary.xml | 27247 | 2018-04-27 12:34:36 |
| Financial_Report.xlsx | 56028 | 2018-04-27 12:34:36 |
| nr-20180331.xml | 711299 | 2018-04-27 12:34:36 |
| nr-20180331.xsd | 35287 | 2018-04-27 12:34:36 |
| nr-20180331_cal.xml | 72325 | 2018-04-27 12:34:36 |
| nr-20180331_def.xml | 176499 | 2018-04-27 12:34:36 |
| nr-20180331_lab.xml | 449237 | 2018-04-27 12:34:36 |
| nr-20180331_pre.xml | 272326 | 2018-04-27 12:34:36 |
 nrimage.jpg | 11318 | 2018-04-27 12:34:36 |
| R1.htm | 21743 | 2018-04-27 12:34:36 |
| R10.htm | 23425 | 2018-04-27 12:34:36 |
| R11.htm | 33447 | 2018-04-27 12:34:36 |
| R12.htm | 21384 | 2018-04-27 12:34:36 |
| R13.htm | 18805 | 2018-04-27 12:34:36 |
| R14.htm | 59354 | 2018-04-27 12:34:36 |
| R15.htm | 17220 | 2018-04-27 12:34:36 |
| R16.htm | 8765 | 2018-04-27 12:34:36 |
| R17.htm | 20980 | 2018-04-27 12:34:36 |
| R18.htm | 53695 | 2018-04-27 12:34:36 |
| R19.htm | 44198 | 2018-04-27 12:34:36 |
| R2.htm | 72496 | 2018-04-27 12:34:36 |
| R20.htm | 21577 | 2018-04-27 12:34:36 |
| R21.htm | 20206 | 2018-04-27 12:34:36 |
| R22.htm | 34436 | 2018-04-27 12:34:36 |
| R23.htm | 18048 | 2018-04-27 12:34:36 |
| R24.htm | 18732 | 2018-04-27 12:34:36 |
| R25.htm | 40892 | 2018-04-27 12:34:36 |
| R26.htm | 23087 | 2018-04-27 12:34:36 |
| R27.htm | 57731 | 2018-04-27 12:34:36 |
| R28.htm | 19770 | 2018-04-27 12:34:36 |
| R29.htm | 22041 | 2018-04-27 12:34:36 |
| R3.htm | 10888 | 2018-04-27 12:34:36 |
| R30.htm | 38489 | 2018-04-27 12:34:36 |
| R31.htm | 33778 | 2018-04-27 12:34:36 |
| R32.htm | 16134 | 2018-04-27 12:34:36 |
| R33.htm | 12019 | 2018-04-27 12:34:36 |
| R34.htm | 19624 | 2018-04-27 12:34:36 |
| R35.htm | 30261 | 2018-04-27 12:34:36 |
| R36.htm | 85797 | 2018-04-27 12:34:36 |
| R37.htm | 24771 | 2018-04-27 12:34:36 |
| R38.htm | 14204 | 2018-04-27 12:34:36 |
| R39.htm | 6895 | 2018-04-27 12:34:36 |
| R4.htm | 31762 | 2018-04-27 12:34:36 |
| R40.htm | 12188 | 2018-04-27 12:34:36 |
| R41.htm | 15000 | 2018-04-27 12:34:36 |
| R42.htm | 23637 | 2018-04-27 12:34:36 |
| R43.htm | 16434 | 2018-04-27 12:34:36 |
| R5.htm | 10360 | 2018-04-27 12:34:36 |
| R6.htm | 5160 | 2018-04-27 12:34:36 |
| R7.htm | 25795 | 2018-04-27 12:34:36 |
| R8.htm | 70199 | 2018-04-27 12:34:36 |
| R9.htm | 36510 | 2018-04-27 12:34:36 |
| report.css | 2767 | 2018-04-27 12:34:36 |
| Show.js | 1410 | 2018-04-27 12:34:36 |