Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001406587-16-000077-index-headers.html | 2016-03-04 14:36:40 | |
| 0001406587-16-000077-index.html | 2016-03-04 14:36:40 | |
| 0001406587-16-000077.txt | 2016-03-04 14:36:40 | |
 0001406587-16-000077-xbrl.zip | 514992 | 2016-03-04 14:36:40 |
| ex211subsidiarylisting2015.htm | 111598 | 2016-03-04 14:36:40 |
| ex231auditconsent2015.htm | 4957 | 2016-03-04 14:36:40 |
| ex232nsaiconsent2015.htm | 6188 | 2016-03-04 14:36:40 |
| ex311for12312015.htm | 12714 | 2016-03-04 14:36:40 |
| ex312for12312015.htm | 12730 | 2016-03-04 14:36:40 |
| ex321for12312015.htm | 4245 | 2016-03-04 14:36:40 |
| ex322for12312015.htm | 4405 | 2016-03-04 14:36:40 |
| ex991nsai2015reservereport.htm | 148669 | 2016-03-04 14:36:40 |
| FilingSummary.xml | 64642 | 2016-03-04 14:36:40 |
| Financial_Report.xlsx | 171873 | 2016-03-04 14:36:40 |
| for-20151231.xml | 5538613 | 2016-03-04 14:36:40 |
| for-20151231.xsd | 115888 | 2016-03-04 14:36:40 |
| for-20151231_cal.xml | 147930 | 2016-03-04 14:36:40 |
| for-20151231_def.xml | 722621 | 2016-03-04 14:36:40 |
| for-20151231_lab.xml | 1446166 | 2016-03-04 14:36:40 |
| for-20151231_pre.xml | 964771 | 2016-03-04 14:36:40 |
| for1231201510-k.htm | 4565802 | 2016-03-04 14:36:40 |
 image6a02.jpg | 8453 | 2016-03-04 14:36:40 |
 nsaidisclaimer.jpg | 34179 | 2016-03-04 14:36:40 |
 nsaifooter2a03.jpg | 28296 | 2016-03-04 14:36:40 |
 nsaiheadera08.jpg | 21273 | 2016-03-04 14:36:40 |
 nsailogoa01.jpg | 8453 | 2016-03-04 14:36:40 |
 performancechart22616a02.jpg | 75527 | 2016-03-04 14:36:40 |
| R1.htm | 30091 | 2016-03-04 14:36:40 |
| R10.htm | 19015 | 2016-03-04 14:36:40 |
| R100.htm | 17912 | 2016-03-04 14:36:40 |
| R101.htm | 398546 | 2016-03-04 14:36:40 |
| R102.htm | 15666 | 2016-03-04 14:36:40 |
| R11.htm | 81726 | 2016-03-04 14:36:40 |
| R12.htm | 20067 | 2016-03-04 14:36:40 |
| R13.htm | 280039 | 2016-03-04 14:36:40 |
| R14.htm | 35614 | 2016-03-04 14:36:40 |
| R15.htm | 37585 | 2016-03-04 14:36:40 |
| R16.htm | 66991 | 2016-03-04 14:36:40 |
| R17.htm | 8532 | 2016-03-04 14:36:40 |
| R18.htm | 43272 | 2016-03-04 14:36:40 |
| R19.htm | 110906 | 2016-03-04 14:36:40 |
| R2.htm | 80954 | 2016-03-04 14:36:40 |
| R20.htm | 9730 | 2016-03-04 14:36:40 |
| R21.htm | 27903 | 2016-03-04 14:36:40 |
| R22.htm | 128319 | 2016-03-04 14:36:40 |
| R23.htm | 11414 | 2016-03-04 14:36:40 |
| R24.htm | 175014 | 2016-03-04 14:36:40 |
| R25.htm | 7575 | 2016-03-04 14:36:40 |
| R26.htm | 300855 | 2016-03-04 14:36:40 |
| R27.htm | 84894 | 2016-03-04 14:36:40 |
| R28.htm | 926093 | 2016-03-04 14:36:40 |
| R29.htm | 6513 | 2016-03-04 14:36:40 |
| R3.htm | 11260 | 2016-03-04 14:36:40 |
| R30.htm | 123741 | 2016-03-04 14:36:40 |
| R31.htm | 38036 | 2016-03-04 14:36:40 |
| R32.htm | 13318 | 2016-03-04 14:36:40 |
| R33.htm | 68283 | 2016-03-04 14:36:40 |
| R34.htm | 17655 | 2016-03-04 14:36:40 |
| R35.htm | 276296 | 2016-03-04 14:36:40 |
| R36.htm | 34416 | 2016-03-04 14:36:40 |
| R37.htm | 19747 | 2016-03-04 14:36:40 |
| R38.htm | 58675 | 2016-03-04 14:36:40 |
| R39.htm | 39903 | 2016-03-04 14:36:40 |
| R4.htm | 74850 | 2016-03-04 14:36:40 |
| R40.htm | 110288 | 2016-03-04 14:36:40 |
| R41.htm | 19165 | 2016-03-04 14:36:40 |
| R42.htm | 122589 | 2016-03-04 14:36:40 |
| R43.htm | 166534 | 2016-03-04 14:36:40 |
| R44.htm | 316373 | 2016-03-04 14:36:40 |
| R45.htm | 83617 | 2016-03-04 14:36:40 |
| R46.htm | 40549 | 2016-03-04 14:36:40 |
| R47.htm | 16123 | 2016-03-04 14:36:40 |
| R48.htm | 22617 | 2016-03-04 14:36:40 |
| R49.htm | 8990 | 2016-03-04 14:36:40 |
| R5.htm | 95337 | 2016-03-04 14:36:40 |
| R50.htm | 21313 | 2016-03-04 14:36:40 |
| R51.htm | 48567 | 2016-03-04 14:36:40 |
| R52.htm | 94884 | 2016-03-04 14:36:40 |
| R53.htm | 22747 | 2016-03-04 14:36:40 |
| R54.htm | 14243 | 2016-03-04 14:36:40 |
| R55.htm | 45351 | 2016-03-04 14:36:40 |
| R56.htm | 87930 | 2016-03-04 14:36:40 |
| R57.htm | 116944 | 2016-03-04 14:36:40 |
| R58.htm | 19918 | 2016-03-04 14:36:40 |
| R59.htm | 21043 | 2016-03-04 14:36:40 |
| R6.htm | 3852 | 2016-03-04 14:36:40 |
| R60.htm | 17524 | 2016-03-04 14:36:40 |
| R61.htm | 10450 | 2016-03-04 14:36:40 |
| R62.htm | 18319 | 2016-03-04 14:36:40 |
| R63.htm | 33809 | 2016-03-04 14:36:40 |
| R64.htm | 182052 | 2016-03-04 14:36:40 |
| R65.htm | 9269 | 2016-03-04 14:36:40 |
| R66.htm | 23454 | 2016-03-04 14:36:40 |
| R67.htm | 19187 | 2016-03-04 14:36:40 |
| R68.htm | 39964 | 2016-03-04 14:36:40 |
| R69.htm | 27582 | 2016-03-04 14:36:40 |
| R7.htm | 119358 | 2016-03-04 14:36:40 |
| R70.htm | 15202 | 2016-03-04 14:36:40 |
| R71.htm | 23524 | 2016-03-04 14:36:40 |
| R72.htm | 25832 | 2016-03-04 14:36:40 |
| R73.htm | 32382 | 2016-03-04 14:36:40 |
| R74.htm | 44437 | 2016-03-04 14:36:40 |
| R75.htm | 9425 | 2016-03-04 14:36:40 |
| R76.htm | 13313 | 2016-03-04 14:36:40 |
| R77.htm | 66567 | 2016-03-04 14:36:40 |
| R78.htm | 8823 | 2016-03-04 14:36:40 |
| R79.htm | 65781 | 2016-03-04 14:36:40 |
| R8.htm | 71825 | 2016-03-04 14:36:40 |
| R80.htm | 17994 | 2016-03-04 14:36:40 |
| R81.htm | 26098 | 2016-03-04 14:36:40 |
| R82.htm | 18038 | 2016-03-04 14:36:40 |
| R83.htm | 9419 | 2016-03-04 14:36:40 |
| R84.htm | 122517 | 2016-03-04 14:36:40 |
| R85.htm | 34642 | 2016-03-04 14:36:40 |
| R86.htm | 44417 | 2016-03-04 14:36:40 |
| R87.htm | 40179 | 2016-03-04 14:36:40 |
| R88.htm | 26211 | 2016-03-04 14:36:40 |
| R89.htm | 35843 | 2016-03-04 14:36:40 |
| R9.htm | 14891 | 2016-03-04 14:36:40 |
| R90.htm | 24704 | 2016-03-04 14:36:40 |
| R91.htm | 8215 | 2016-03-04 14:36:40 |
| R92.htm | 41174 | 2016-03-04 14:36:40 |
| R93.htm | 42040 | 2016-03-04 14:36:40 |
| R94.htm | 16019 | 2016-03-04 14:36:40 |
| R95.htm | 34507 | 2016-03-04 14:36:40 |
| R96.htm | 27699 | 2016-03-04 14:36:40 |
| R97.htm | 50502 | 2016-03-04 14:36:40 |
| R98.htm | 30150 | 2016-03-04 14:36:40 |
| R99.htm | 37794 | 2016-03-04 14:36:40 |
| report.css | 2768 | 2016-03-04 14:36:40 |
| Show.js | 1411 | 2016-03-04 14:36:40 |