Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001618563-20-000128-index-headers.html | 2020-11-05 16:03:05 | |
| 0001618563-20-000128-index.html | 2020-11-05 16:03:05 | |
| 0001618563-20-000128.txt | 2020-11-05 16:03:05 | |
 0001618563-20-000128-xbrl.zip | 89765 | 2020-11-05 16:03:05 |
| ex991-q32020erss.htm | 1982164 | 2020-11-05 16:03:05 |
| FilingSummary.xml | 1962 | 2020-11-05 16:03:05 |
| Financial_Report.xlsx | 5647 | 2020-11-05 16:03:05 |
 image0a931a.jpg | 9612 | 2020-11-05 16:03:05 |
 image1a.jpg | 2030830 | 2020-11-05 16:03:05 |
 image2a.jpg | 6477536 | 2020-11-05 16:03:05 |
| MetaLinks.json | 24256 | 2020-11-05 16:03:05 |
| nsa-20201105.htm | 38951 | 2020-11-05 16:03:05 |
| nsa-20201105.xsd | 2838 | 2020-11-05 16:03:05 |
| nsa-20201105_cal.xml | 836 | 2020-11-05 16:03:05 |
| nsa-20201105_def.xml | 17656 | 2020-11-05 16:03:05 |
| nsa-20201105_htm.xml | 13995 | 2020-11-05 16:03:05 |
| nsa-20201105_lab.xml | 33243 | 2020-11-05 16:03:05 |
| nsa-20201105_pre.xml | 17936 | 2020-11-05 16:03:05 |
| R1.htm | 44438 | 2020-11-05 16:03:05 |
| report.css | 2767 | 2020-11-05 16:03:05 |
| Show.js | 1085 | 2020-11-05 16:03:05 |