Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001532286-21-000021-index-headers.html | 2021-11-03 17:47:50 | |
| 0001532286-21-000021-index.html | 2021-11-03 17:47:50 | |
| 0001532286-21-000021.txt | 2021-11-03 17:47:50 | |
 0001532286-21-000021-xbrl.zip | 210933 | 2021-11-03 17:47:50 |
| FilingSummary.xml | 27853 | 2021-11-03 17:47:50 |
| Financial_Report.xlsx | 67644 | 2021-11-03 17:47:50 |
| MetaLinks.json | 498793 | 2021-11-03 17:47:50 |
| nine-20210930.htm | 1325438 | 2021-11-03 17:47:50 |
| nine-20210930.xsd | 32442 | 2021-11-03 17:47:50 |
| nine-2021093010qex311.htm | 15914 | 2021-11-03 17:47:50 |
| nine-2021093010qex312.htm | 16222 | 2021-11-03 17:47:50 |
| nine-2021093010qex321.htm | 7378 | 2021-11-03 17:47:50 |
| nine-2021093010qex322.htm | 7504 | 2021-11-03 17:47:50 |
| nine-20210930_cal.xml | 72294 | 2021-11-03 17:47:50 |
| nine-20210930_def.xml | 149577 | 2021-11-03 17:47:50 |
| nine-20210930_htm.xml | 928492 | 2021-11-03 17:47:50 |
| nine-20210930_lab.xml | 427395 | 2021-11-03 17:47:50 |
| nine-20210930_pre.xml | 285690 | 2021-11-03 17:47:50 |
| R1.htm | 53990 | 2021-11-03 17:47:50 |
| R10.htm | 20973 | 2021-11-03 17:47:50 |
| R11.htm | 35861 | 2021-11-03 17:47:50 |
| R12.htm | 14376 | 2021-11-03 17:47:50 |
| R13.htm | 39946 | 2021-11-03 17:47:50 |
| R14.htm | 12110 | 2021-11-03 17:47:50 |
| R15.htm | 38418 | 2021-11-03 17:47:50 |
| R16.htm | 12575 | 2021-11-03 17:47:50 |
| R17.htm | 28746 | 2021-11-03 17:47:50 |
| R18.htm | 17503 | 2021-11-03 17:47:50 |
| R19.htm | 43906 | 2021-11-03 17:47:50 |
| R2.htm | 107785 | 2021-11-03 17:47:50 |
| R20.htm | 22506 | 2021-11-03 17:47:50 |
| R21.htm | 31907 | 2021-11-03 17:47:50 |
| R22.htm | 14670 | 2021-11-03 17:47:50 |
| R23.htm | 68287 | 2021-11-03 17:47:50 |
| R24.htm | 11917 | 2021-11-03 17:47:50 |
| R25.htm | 22423 | 2021-11-03 17:47:50 |
| R26.htm | 21867 | 2021-11-03 17:47:50 |
| R27.htm | 14264 | 2021-11-03 17:47:50 |
| R28.htm | 44518 | 2021-11-03 17:47:50 |
| R29.htm | 24166 | 2021-11-03 17:47:50 |
| R3.htm | 10793 | 2021-11-03 17:47:50 |
| R30.htm | 26636 | 2021-11-03 17:47:50 |
| R31.htm | 4596 | 2021-11-03 17:47:50 |
| R32.htm | 14925 | 2021-11-03 17:47:50 |
| R33.htm | 27952 | 2021-11-03 17:47:50 |
| R34.htm | 8763 | 2021-11-03 17:47:50 |
| R35.htm | 19219 | 2021-11-03 17:47:50 |
| R36.htm | 14421 | 2021-11-03 17:47:50 |
| R37.htm | 19760 | 2021-11-03 17:47:50 |
| R38.htm | 87523 | 2021-11-03 17:47:50 |
| R39.htm | 8792 | 2021-11-03 17:47:50 |
| R4.htm | 97234 | 2021-11-03 17:47:50 |
| R40.htm | 64345 | 2021-11-03 17:47:50 |
| R41.htm | 40685 | 2021-11-03 17:47:50 |
| R42.htm | 16692 | 2021-11-03 17:47:50 |
| R43.htm | 8848 | 2021-11-03 17:47:50 |
| R44.htm | 6757 | 2021-11-03 17:47:50 |
| R45.htm | 36919 | 2021-11-03 17:47:50 |
| R46.htm | 5193 | 2021-11-03 17:47:50 |
| R5.htm | 5749 | 2021-11-03 17:47:50 |
| R6.htm | 56996 | 2021-11-03 17:47:50 |
| R7.htm | 114321 | 2021-11-03 17:47:50 |
| R8.htm | 9369 | 2021-11-03 17:47:50 |
| R9.htm | 8155 | 2021-11-03 17:47:50 |
| report.css | 2767 | 2021-11-03 17:47:50 |
| Show.js | 1085 | 2021-11-03 17:47:50 |