Name | Size | Last Modified |
---|---|---|
0001193125-13-087939-index-headers.html | 2013-03-01 17:07:50 | |
0001193125-13-087939-index.html | 2013-03-01 17:07:50 | |
0001193125-13-087939.txt | 2013-03-01 17:07:50 | |
0001193125-13-087939-xbrl.zip | 394223 | 2013-03-01 17:07:50 |
d447988d10k.htm | 3529784 | 2013-03-01 17:07:50 |
d447988dex111.htm | 13429 | 2013-03-01 17:07:50 |
d447988dex211.htm | 6695 | 2013-03-01 17:07:50 |
d447988dex231.htm | 2097 | 2013-03-01 17:07:50 |
d447988dex311.htm | 10820 | 2013-03-01 17:07:50 |
d447988dex312.htm | 10486 | 2013-03-01 17:07:50 |
d447988dex321.htm | 3837 | 2013-03-01 17:07:50 |
d447988dex322.htm | 3837 | 2013-03-01 17:07:50 |
FilingSummary.xml | 61582 | 2013-03-01 17:07:50 |
Financial_Report.xls | 3376068 | 2013-03-01 17:07:50 |
g447988g69t73.jpg | 55508 | 2013-03-01 17:07:50 |
navg-20121231.xml | 4224787 | 2013-03-01 17:07:50 |
navg-20121231.xsd | 142500 | 2013-03-01 17:07:50 |
navg-20121231_cal.xml | 160977 | 2013-03-01 17:07:50 |
navg-20121231_def.xml | 761195 | 2013-03-01 17:07:50 |
navg-20121231_lab.xml | 966883 | 2013-03-01 17:07:50 |
navg-20121231_pre.xml | 894743 | 2013-03-01 17:07:50 |
R1.htm | 39418 | 2013-03-01 17:07:50 |
R10.htm | 18284 | 2013-03-01 17:07:50 |
R100.htm | 80355 | 2013-03-01 17:07:50 |
R101.htm | 28661 | 2013-03-01 17:07:50 |
R102.htm | 61086 | 2013-03-01 17:07:50 |
R103.htm | 92929 | 2013-03-01 17:07:50 |
R104.htm | 50235 | 2013-03-01 17:07:50 |
R105.htm | 18150 | 2013-03-01 17:07:50 |
R106.htm | 17449 | 2013-03-01 17:07:50 |
R107.htm | 39032 | 2013-03-01 17:07:50 |
R11.htm | 201778 | 2013-03-01 17:07:50 |
R12.htm | 413093 | 2013-03-01 17:07:50 |
R13.htm | 72966 | 2013-03-01 17:07:50 |
R14.htm | 104375 | 2013-03-01 17:07:50 |
R15.htm | 68081 | 2013-03-01 17:07:50 |
R16.htm | 6226 | 2013-03-01 17:07:50 |
R17.htm | 6235 | 2013-03-01 17:07:50 |
R18.htm | 5949 | 2013-03-01 17:07:50 |
R19.htm | 3917 | 2013-03-01 17:07:50 |
R2.htm | 140955 | 2013-03-01 17:07:50 |
R20.htm | 13927 | 2013-03-01 17:07:50 |
R21.htm | 30373 | 2013-03-01 17:07:50 |
R22.htm | 30673 | 2013-03-01 17:07:50 |
R23.htm | 104778 | 2013-03-01 17:07:50 |
R24.htm | 13758 | 2013-03-01 17:07:50 |
R25.htm | 103542 | 2013-03-01 17:07:50 |
R26.htm | 34439 | 2013-03-01 17:07:50 |
R27.htm | 88636 | 2013-03-01 17:07:50 |
R28.htm | 69887 | 2013-03-01 17:07:50 |
R29.htm | 21475 | 2013-03-01 17:07:50 |
R3.htm | 30009 | 2013-03-01 17:07:50 |
R30.htm | 14914 | 2013-03-01 17:07:50 |
R31.htm | 40318 | 2013-03-01 17:07:50 |
R32.htm | 103780 | 2013-03-01 17:07:50 |
R33.htm | 16232 | 2013-03-01 17:07:50 |
R34.htm | 197703 | 2013-03-01 17:07:50 |
R35.htm | 436078 | 2013-03-01 17:07:50 |
R36.htm | 55447 | 2013-03-01 17:07:50 |
R37.htm | 102854 | 2013-03-01 17:07:50 |
R38.htm | 65707 | 2013-03-01 17:07:50 |
R39.htm | 9482 | 2013-03-01 17:07:50 |
R4.htm | 111033 | 2013-03-01 17:07:50 |
R40.htm | 33269 | 2013-03-01 17:07:50 |
R41.htm | 18448 | 2013-03-01 17:07:50 |
R42.htm | 107817 | 2013-03-01 17:07:50 |
R43.htm | 101121 | 2013-03-01 17:07:50 |
R44.htm | 32562 | 2013-03-01 17:07:50 |
R45.htm | 43785 | 2013-03-01 17:07:50 |
R46.htm | 26086 | 2013-03-01 17:07:50 |
R47.htm | 138757 | 2013-03-01 17:07:50 |
R48.htm | 58650 | 2013-03-01 17:07:50 |
R49.htm | 38521 | 2013-03-01 17:07:50 |
R5.htm | 49664 | 2013-03-01 17:07:50 |
R50.htm | 48557 | 2013-03-01 17:07:50 |
R51.htm | 54236 | 2013-03-01 17:07:50 |
R52.htm | 24255 | 2013-03-01 17:07:50 |
R53.htm | 74256 | 2013-03-01 17:07:50 |
R54.htm | 10882 | 2013-03-01 17:07:50 |
R55.htm | 36626 | 2013-03-01 17:07:50 |
R56.htm | 18467 | 2013-03-01 17:07:50 |
R57.htm | 25648 | 2013-03-01 17:07:50 |
R58.htm | 22238 | 2013-03-01 17:07:50 |
R59.htm | 11554 | 2013-03-01 17:07:50 |
R6.htm | 20673 | 2013-03-01 17:07:50 |
R60.htm | 19881 | 2013-03-01 17:07:50 |
R61.htm | 35951 | 2013-03-01 17:07:50 |
R62.htm | 30497 | 2013-03-01 17:07:50 |
R63.htm | 40254 | 2013-03-01 17:07:50 |
R64.htm | 17842 | 2013-03-01 17:07:50 |
R65.htm | 60428 | 2013-03-01 17:07:50 |
R66.htm | 28937 | 2013-03-01 17:07:50 |
R67.htm | 49845 | 2013-03-01 17:07:50 |
R68.htm | 19879 | 2013-03-01 17:07:50 |
R69.htm | 11102 | 2013-03-01 17:07:50 |
R7.htm | 71103 | 2013-03-01 17:07:50 |
R70.htm | 123389 | 2013-03-01 17:07:50 |
R71.htm | 13577 | 2013-03-01 17:07:50 |
R72.htm | 19090 | 2013-03-01 17:07:50 |
R73.htm | 20402 | 2013-03-01 17:07:50 |
R74.htm | 15776 | 2013-03-01 17:07:50 |
R75.htm | 52893 | 2013-03-01 17:07:50 |
R76.htm | 39504 | 2013-03-01 17:07:50 |
R77.htm | 61965 | 2013-03-01 17:07:50 |
R78.htm | 49978 | 2013-03-01 17:07:50 |
R79.htm | 22787 | 2013-03-01 17:07:50 |
R8.htm | 150609 | 2013-03-01 17:07:50 |
R80.htm | 57965 | 2013-03-01 17:07:50 |
R81.htm | 14194 | 2013-03-01 17:07:50 |
R82.htm | 8605 | 2013-03-01 17:07:50 |
R83.htm | 31154 | 2013-03-01 17:07:50 |
R84.htm | 19199 | 2013-03-01 17:07:50 |
R85.htm | 22008 | 2013-03-01 17:07:50 |
R86.htm | 11711 | 2013-03-01 17:07:50 |
R87.htm | 18012 | 2013-03-01 17:07:50 |
R88.htm | 8871 | 2013-03-01 17:07:50 |
R89.htm | 52380 | 2013-03-01 17:07:50 |
R9.htm | 42495 | 2013-03-01 17:07:50 |
R90.htm | 104176 | 2013-03-01 17:07:50 |
R91.htm | 17213 | 2013-03-01 17:07:50 |
R92.htm | 5679 | 2013-03-01 17:07:50 |
R93.htm | 25381 | 2013-03-01 17:07:50 |
R94.htm | 39325 | 2013-03-01 17:07:50 |
R95.htm | 35900 | 2013-03-01 17:07:50 |
R96.htm | 40808 | 2013-03-01 17:07:50 |
R97.htm | 33632 | 2013-03-01 17:07:50 |
R98.htm | 105918 | 2013-03-01 17:07:50 |
R99.htm | 38411 | 2013-03-01 17:07:50 |
report.css | 2721 | 2013-03-01 17:07:50 |
Show.js | 6423 | 2013-03-01 17:07:50 |