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| 0001193125-16-604532-index.html | 2016-05-26 17:44:26 | |
| 0001193125-16-604532.txt | 2016-05-26 17:44:26 | |
 0001193125-16-604532-xbrl.zip | 118497 | 2016-05-26 17:44:26 |
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| d192980d497.htm | 6070 | 2016-05-26 17:44:26 |
| FilingSummary.xml | 7310 | 2016-05-26 17:44:26 |
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| isi-20160512.xml | 183075 | 2016-05-26 17:44:26 |
| isi-20160512.xsd | 22380 | 2016-05-26 17:44:26 |
| isi-20160512_cal.xml | 3195 | 2016-05-26 17:44:26 |
| isi-20160512_def.xml | 872889 | 2016-05-26 17:44:26 |
| isi-20160512_lab.xml | 155473 | 2016-05-26 17:44:26 |
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| R1.htm | 16177 | 2016-05-26 17:44:26 |
| R11.htm | 173885 | 2016-05-26 17:44:26 |
| R12.htm | 81965 | 2016-05-26 17:44:26 |
| R17.htm | 174671 | 2016-05-26 17:44:26 |
| R18.htm | 65221 | 2016-05-26 17:44:26 |
| R2.htm | 75171 | 2016-05-26 17:44:26 |
| R21.htm | 108588 | 2016-05-26 17:44:26 |
| R22.htm | 7471 | 2016-05-26 17:44:26 |
| R5.htm | 118600 | 2016-05-26 17:44:26 |
| R6.htm | 83457 | 2016-05-26 17:44:26 |
| report.css | 2767 | 2016-05-26 17:44:26 |
| Show.js | 1410 | 2016-05-26 17:44:26 |