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| 0001635984-18-000016-index.html | 2018-05-10 16:01:59 | |
| 0001635984-18-000016.txt | 2018-05-10 16:01:59 | |
 0001635984-18-000016-xbrl.zip | 328532 | 2018-05-10 16:01:59 |
| FilingSummary.xml | 33832 | 2018-05-10 16:01:59 |
| Financial_Report.xlsx | 91462 | 2018-05-10 16:01:59 |
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| nwlgi2018q110q.htm | 2958403 | 2018-05-10 16:01:59 |
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| nwlgi2018q110qex-32a.htm | 24616 | 2018-05-10 16:01:59 |
| nwli-20180331.xml | 4275633 | 2018-05-10 16:01:59 |
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| nwli-20180331_cal.xml | 135181 | 2018-05-10 16:01:59 |
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| report.css | 2767 | 2018-05-10 16:01:59 |
| Show.js | 1410 | 2018-05-10 16:01:59 |