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|---|---|---|
 0001193125-19-167358-index-headers.html | 2019-06-06 18:00:10 | |
| 0001193125-19-167358-index.html | 2019-06-06 18:00:10 | |
| 0001193125-19-167358.txt | 2019-06-06 18:00:10 | |
 0001193125-19-167358-xbrl.zip | 40747 | 2019-06-06 18:00:10 |
 BarChart1.png | 27305 | 2019-06-06 18:00:10 |
| d749804d497.htm | 4825 | 2019-06-06 18:00:10 |
| FilingSummary.xml | 3481 | 2019-06-06 18:00:10 |
 g749804state1.jpg | 9397 | 2019-06-06 18:00:10 |
| isi-20190529.xml | 51137 | 2019-06-06 18:00:10 |
| isi-20190529.xsd | 8257 | 2019-06-06 18:00:10 |
| isi-20190529_cal.xml | 4750 | 2019-06-06 18:00:10 |
| isi-20190529_def.xml | 207504 | 2019-06-06 18:00:10 |
| isi-20190529_lab.xml | 146667 | 2019-06-06 18:00:10 |
| isi-20190529_pre.xml | 161293 | 2019-06-06 18:00:10 |
| R1.htm | 18236 | 2019-06-06 18:00:10 |
| R2.htm | 95663 | 2019-06-06 18:00:10 |
| R7.htm | 189118 | 2019-06-06 18:00:10 |
| R8.htm | 7473 | 2019-06-06 18:00:10 |
| report.css | 2767 | 2019-06-06 18:00:10 |
| Show.js | 1085 | 2019-06-06 18:00:10 |