Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-105244-index-headers.html | 2020-04-13 16:06:21 | |
| 0001193125-20-105244-index.html | 2020-04-13 16:06:21 | |
| 0001193125-20-105244.txt | 2020-04-13 16:06:21 | |
 0001193125-20-105244-xbrl.zip | 33826 | 2020-04-13 16:06:21 |
| d893198d8k.htm | 55137 | 2020-04-13 16:06:21 |
| d893198d8k_htm.xml | 5242 | 2020-04-13 16:06:21 |
| d893198dex101.htm | 20501 | 2020-04-13 16:06:21 |
| d893198dex102.htm | 13275 | 2020-04-13 16:06:21 |
| d893198dex103.htm | 6471 | 2020-04-13 16:06:21 |
| d893198dex991.htm | 16107 | 2020-04-13 16:06:21 |
| FilingSummary.xml | 2000 | 2020-04-13 16:06:21 |
| Financial_Report.xlsx | 5924 | 2020-04-13 16:06:21 |
 g893198g0413055307066.jpg | 3993 | 2020-04-13 16:06:21 |
 g893198g81i02.jpg | 7319 | 2020-04-13 16:06:21 |
| MetaLinks.json | 22004 | 2020-04-13 16:06:21 |
| nav-20200409.xsd | 4119 | 2020-04-13 16:06:21 |
| nav-20200409_def.xml | 13413 | 2020-04-13 16:06:21 |
| nav-20200409_lab.xml | 22068 | 2020-04-13 16:06:21 |
| nav-20200409_pre.xml | 14316 | 2020-04-13 16:06:21 |
| R1.htm | 42637 | 2020-04-13 16:06:21 |
| report.css | 2767 | 2020-04-13 16:06:21 |
| Show.js | 1085 | 2020-04-13 16:06:21 |