Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-112801-index-headers.html | 2020-04-21 07:49:49 | |
| 0001193125-20-112801-index.html | 2020-04-21 07:49:49 | |
| 0001193125-20-112801.txt | 2020-04-21 07:49:49 | |
 0001193125-20-112801-xbrl.zip | 18680 | 2020-04-21 07:49:49 |
| d912871d8k.htm | 33243 | 2020-04-21 07:49:49 |
| d912871d8k_htm.xml | 5242 | 2020-04-21 07:49:49 |
| d912871dex991.htm | 9360 | 2020-04-21 07:49:49 |
| FilingSummary.xml | 1895 | 2020-04-21 07:49:49 |
| Financial_Report.xlsx | 5922 | 2020-04-21 07:49:49 |
 g9128711.jpg | 13976 | 2020-04-21 07:49:49 |
 g912871g0416002327649.jpg | 3982 | 2020-04-21 07:49:49 |
| MetaLinks.json | 22004 | 2020-04-21 07:49:49 |
| nav-20200421.xsd | 4118 | 2020-04-21 07:49:49 |
| nav-20200421_def.xml | 13412 | 2020-04-21 07:49:49 |
| nav-20200421_lab.xml | 22067 | 2020-04-21 07:49:49 |
| nav-20200421_pre.xml | 14315 | 2020-04-21 07:49:49 |
| R1.htm | 42636 | 2020-04-21 07:49:49 |
| report.css | 2767 | 2020-04-21 07:49:49 |
| Show.js | 1085 | 2020-04-21 07:49:49 |