Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-052647-index-headers.html | 2020-02-27 16:06:51 | |
| 0001193125-20-052647-index.html | 2020-02-27 16:06:51 | |
| 0001193125-20-052647.txt | 2020-02-27 16:06:51 | |
 0001193125-20-052647-xbrl.zip | 15441 | 2020-02-27 16:06:51 |
| d896815d8k.htm | 46208 | 2020-02-27 16:06:51 |
| d896815d8k_htm.xml | 5242 | 2020-02-27 16:06:51 |
| FilingSummary.xml | 1865 | 2020-02-27 16:06:51 |
| Financial_Report.xlsx | 5923 | 2020-02-27 16:06:51 |
 g896815g0226231740777.jpg | 3835 | 2020-02-27 16:06:51 |
| MetaLinks.json | 22004 | 2020-02-27 16:06:51 |
| nav-20200225.xsd | 4119 | 2020-02-27 16:06:51 |
| nav-20200225_def.xml | 13413 | 2020-02-27 16:06:51 |
| nav-20200225_lab.xml | 22068 | 2020-02-27 16:06:51 |
| nav-20200225_pre.xml | 14316 | 2020-02-27 16:06:51 |
| R1.htm | 42641 | 2020-02-27 16:06:51 |
| report.css | 2766 | 2020-02-27 16:06:51 |
| Show.js | 1085 | 2020-02-27 16:06:51 |