Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001635984-20-000019-index-headers.html | 2020-06-23 12:53:42 | |
| 0001635984-20-000019-index.html | 2020-06-23 12:53:42 | |
| 0001635984-20-000019.txt | 2020-06-23 12:53:42 | |
 0001635984-20-000019-xbrl.zip | 13662 | 2020-06-23 12:53:42 |
| FilingSummary.xml | 1702 | 2020-06-23 12:53:42 |
| Financial_Report.xlsx | 5803 | 2020-06-23 12:53:42 |
| MetaLinks.json | 17737 | 2020-06-23 12:53:42 |
| nwli-20200623.htm | 93774 | 2020-06-23 12:53:42 |
| nwli-20200623.xsd | 2469 | 2020-06-23 12:53:42 |
| nwli-20200623_cal.xml | 744 | 2020-06-23 12:53:42 |
| nwli-20200623_def.xml | 1681 | 2020-06-23 12:53:42 |
| nwli-20200623_htm.xml | 10759 | 2020-06-23 12:53:42 |
| nwli-20200623_lab.xml | 24275 | 2020-06-23 12:53:42 |
| nwli-20200623_pre.xml | 12680 | 2020-06-23 12:53:42 |
| R1.htm | 38622 | 2020-06-23 12:53:42 |
| report.css | 2767 | 2020-06-23 12:53:42 |
| Show.js | 1085 | 2020-06-23 12:53:42 |