Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-18-013543-index-headers.html | 2018-01-18 18:05:06 | |
| 0001193125-18-013543-index.html | 2018-01-18 18:05:06 | |
| 0001193125-18-013543.txt | 2018-01-18 18:05:06 | |
 0001193125-18-013543-xbrl.zip | 1165282 | 2018-01-18 18:05:06 |
 BarChart1.png | 15287 | 2018-01-18 18:05:06 |
 BarChart10.png | 30318 | 2018-01-18 18:05:06 |
 BarChart11.png | 25612 | 2018-01-18 18:05:06 |
 BarChart12.png | 30711 | 2018-01-18 18:05:06 |
 BarChart13.png | 29355 | 2018-01-18 18:05:06 |
 BarChart14.png | 15474 | 2018-01-18 18:05:06 |
 BarChart15.png | 14617 | 2018-01-18 18:05:06 |
 BarChart16.png | 30838 | 2018-01-18 18:05:06 |
 BarChart17.png | 16792 | 2018-01-18 18:05:06 |
 BarChart18.png | 29640 | 2018-01-18 18:05:06 |
 BarChart19.png | 30647 | 2018-01-18 18:05:06 |
 BarChart2.png | 9574 | 2018-01-18 18:05:06 |
 BarChart20.png | 14326 | 2018-01-18 18:05:06 |
 BarChart21.png | 30836 | 2018-01-18 18:05:06 |
 BarChart22.png | 14829 | 2018-01-18 18:05:06 |
 BarChart23.png | 16597 | 2018-01-18 18:05:06 |
 BarChart24.png | 17378 | 2018-01-18 18:05:06 |
 BarChart25.png | 15977 | 2018-01-18 18:05:06 |
 BarChart26.png | 15388 | 2018-01-18 18:05:06 |
 BarChart27.png | 30647 | 2018-01-18 18:05:06 |
 BarChart28.png | 23480 | 2018-01-18 18:05:06 |
 BarChart29.png | 31741 | 2018-01-18 18:05:06 |
 BarChart3.png | 7717 | 2018-01-18 18:05:06 |
 BarChart30.png | 30937 | 2018-01-18 18:05:06 |
 BarChart31.png | 26223 | 2018-01-18 18:05:06 |
 BarChart32.png | 31114 | 2018-01-18 18:05:06 |
 BarChart33.png | 30184 | 2018-01-18 18:05:06 |
 BarChart34.png | 29676 | 2018-01-18 18:05:06 |
 BarChart35.png | 30416 | 2018-01-18 18:05:06 |
 BarChart36.png | 19906 | 2018-01-18 18:05:06 |
 BarChart37.png | 28672 | 2018-01-18 18:05:06 |
 BarChart38.png | 30559 | 2018-01-18 18:05:06 |
 BarChart39.png | 30182 | 2018-01-18 18:05:06 |
 BarChart4.png | 15815 | 2018-01-18 18:05:06 |
 BarChart40.png | 32140 | 2018-01-18 18:05:06 |
 BarChart41.png | 30283 | 2018-01-18 18:05:06 |
 BarChart42.png | 30812 | 2018-01-18 18:05:06 |
 BarChart43.png | 29643 | 2018-01-18 18:05:06 |
 BarChart44.png | 25928 | 2018-01-18 18:05:06 |
 BarChart45.png | 24691 | 2018-01-18 18:05:06 |
 BarChart46.png | 20958 | 2018-01-18 18:05:06 |
 BarChart47.png | 16385 | 2018-01-18 18:05:06 |
 BarChart5.png | 21781 | 2018-01-18 18:05:06 |
 BarChart6.png | 7147 | 2018-01-18 18:05:06 |
 BarChart7.png | 30092 | 2018-01-18 18:05:06 |
 BarChart8.png | 31280 | 2018-01-18 18:05:06 |
 BarChart9.png | 29938 | 2018-01-18 18:05:06 |
| d504124d485bpos.htm | 41816 | 2018-01-18 18:05:06 |
| FilingSummary.xml | 62410 | 2018-01-18 18:05:06 |
| isi-20171226.xml | 2278198 | 2018-01-18 18:05:06 |
| isi-20171226.xsd | 247104 | 2018-01-18 18:05:06 |
| isi-20171226_cal.xml | 4739 | 2018-01-18 18:05:06 |
| isi-20171226_def.xml | 10173078 | 2018-01-18 18:05:06 |
| isi-20171226_lab.xml | 359679 | 2018-01-18 18:05:06 |
| isi-20171226_pre.xml | 7044991 | 2018-01-18 18:05:06 |
| R1.htm | 16183 | 2018-01-18 18:05:06 |
| R101.htm | 107278 | 2018-01-18 18:05:06 |
| R102.htm | 87400 | 2018-01-18 18:05:06 |
| R107.htm | 172490 | 2018-01-18 18:05:06 |
| R108.htm | 62266 | 2018-01-18 18:05:06 |
| R111.htm | 104831 | 2018-01-18 18:05:06 |
| R112.htm | 97551 | 2018-01-18 18:05:06 |
| R117.htm | 184378 | 2018-01-18 18:05:06 |
| R118.htm | 93773 | 2018-01-18 18:05:06 |
| R123.htm | 183027 | 2018-01-18 18:05:06 |
| R124.htm | 82931 | 2018-01-18 18:05:06 |
| R129.htm | 164875 | 2018-01-18 18:05:06 |
| R13.htm | 191524 | 2018-01-18 18:05:06 |
| R130.htm | 93425 | 2018-01-18 18:05:06 |
| R135.htm | 182678 | 2018-01-18 18:05:06 |
| R136.htm | 85279 | 2018-01-18 18:05:06 |
| R14.htm | 98170 | 2018-01-18 18:05:06 |
| R141.htm | 180568 | 2018-01-18 18:05:06 |
| R142.htm | 81922 | 2018-01-18 18:05:06 |
| R147.htm | 166282 | 2018-01-18 18:05:06 |
| R148.htm | 82629 | 2018-01-18 18:05:06 |
| R153.htm | 166996 | 2018-01-18 18:05:06 |
| R154.htm | 85843 | 2018-01-18 18:05:06 |
| R159.htm | 181131 | 2018-01-18 18:05:06 |
| R160.htm | 83396 | 2018-01-18 18:05:06 |
| R165.htm | 167761 | 2018-01-18 18:05:06 |
| R166.htm | 94020 | 2018-01-18 18:05:06 |
| R171.htm | 183270 | 2018-01-18 18:05:06 |
| R172.htm | 90693 | 2018-01-18 18:05:06 |
| R177.htm | 179326 | 2018-01-18 18:05:06 |
| R178.htm | 94787 | 2018-01-18 18:05:06 |
| R183.htm | 184080 | 2018-01-18 18:05:06 |
| R184.htm | 93381 | 2018-01-18 18:05:06 |
| R189.htm | 180320 | 2018-01-18 18:05:06 |
| R19.htm | 192356 | 2018-01-18 18:05:06 |
| R190.htm | 90832 | 2018-01-18 18:05:06 |
| R195.htm | 177508 | 2018-01-18 18:05:06 |
| R196.htm | 95379 | 2018-01-18 18:05:06 |
| R2.htm | 87131 | 2018-01-18 18:05:06 |
| R20.htm | 91611 | 2018-01-18 18:05:06 |
| R201.htm | 184633 | 2018-01-18 18:05:06 |
| R202.htm | 96442 | 2018-01-18 18:05:06 |
| R207.htm | 185737 | 2018-01-18 18:05:06 |
| R208.htm | 96673 | 2018-01-18 18:05:06 |
| R213.htm | 189758 | 2018-01-18 18:05:06 |
| R214.htm | 94599 | 2018-01-18 18:05:06 |
| R219.htm | 181529 | 2018-01-18 18:05:06 |
| R220.htm | 86736 | 2018-01-18 18:05:06 |
| R225.htm | 174675 | 2018-01-18 18:05:06 |
| R226.htm | 95302 | 2018-01-18 18:05:06 |
| R231.htm | 187006 | 2018-01-18 18:05:06 |
| R232.htm | 98151 | 2018-01-18 18:05:06 |
| R237.htm | 191223 | 2018-01-18 18:05:06 |
| R238.htm | 95720 | 2018-01-18 18:05:06 |
| R243.htm | 185007 | 2018-01-18 18:05:06 |
| R244.htm | 94434 | 2018-01-18 18:05:06 |
| R249.htm | 183729 | 2018-01-18 18:05:06 |
| R25.htm | 183413 | 2018-01-18 18:05:06 |
| R250.htm | 94303 | 2018-01-18 18:05:06 |
| R255.htm | 186000 | 2018-01-18 18:05:06 |
| R256.htm | 95179 | 2018-01-18 18:05:06 |
| R26.htm | 87028 | 2018-01-18 18:05:06 |
| R261.htm | 184464 | 2018-01-18 18:05:06 |
| R262.htm | 96386 | 2018-01-18 18:05:06 |
| R267.htm | 188084 | 2018-01-18 18:05:06 |
| R268.htm | 90723 | 2018-01-18 18:05:06 |
| R273.htm | 179394 | 2018-01-18 18:05:06 |
| R274.htm | 90445 | 2018-01-18 18:05:06 |
| R279.htm | 179083 | 2018-01-18 18:05:06 |
| R280.htm | 80675 | 2018-01-18 18:05:06 |
| R285.htm | 166289 | 2018-01-18 18:05:06 |
| R286.htm | 80282 | 2018-01-18 18:05:06 |
| R291.htm | 162342 | 2018-01-18 18:05:06 |
| R292.htm | 7475 | 2018-01-18 18:05:06 |
| R31.htm | 183172 | 2018-01-18 18:05:06 |
| R32.htm | 88267 | 2018-01-18 18:05:06 |
| R37.htm | 184528 | 2018-01-18 18:05:06 |
| R38.htm | 94124 | 2018-01-18 18:05:06 |
| R43.htm | 183377 | 2018-01-18 18:05:06 |
| R44.htm | 94743 | 2018-01-18 18:05:06 |
| R49.htm | 184034 | 2018-01-18 18:05:06 |
| R50.htm | 95067 | 2018-01-18 18:05:06 |
| R55.htm | 184357 | 2018-01-18 18:05:06 |
| R56.htm | 96517 | 2018-01-18 18:05:06 |
| R61.htm | 185813 | 2018-01-18 18:05:06 |
| R62.htm | 97297 | 2018-01-18 18:05:06 |
| R67.htm | 183989 | 2018-01-18 18:05:06 |
| R68.htm | 95907 | 2018-01-18 18:05:06 |
| R7.htm | 182082 | 2018-01-18 18:05:06 |
| R73.htm | 186659 | 2018-01-18 18:05:06 |
| R74.htm | 93295 | 2018-01-18 18:05:06 |
| R79.htm | 182338 | 2018-01-18 18:05:06 |
| R8.htm | 96970 | 2018-01-18 18:05:06 |
| R80.htm | 80021 | 2018-01-18 18:05:06 |
| R85.htm | 163920 | 2018-01-18 18:05:06 |
| R86.htm | 86747 | 2018-01-18 18:05:06 |
| R91.htm | 168681 | 2018-01-18 18:05:06 |
| R92.htm | 100403 | 2018-01-18 18:05:06 |
| R97.htm | 191446 | 2018-01-18 18:05:06 |
| R98.htm | 64272 | 2018-01-18 18:05:06 |
| report.css | 2768 | 2018-01-18 18:05:06 |
| Show.js | 1411 | 2018-01-18 18:05:06 |