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| 0001193125-18-248315-index.html | 2018-08-14 15:01:49 | |
| 0001193125-18-248315.txt | 2018-08-14 15:01:49 | |
 0001193125-18-248315-xbrl.zip | 75528 | 2018-08-14 15:01:49 |
| d593552d10q.htm | 368180 | 2018-08-14 15:01:49 |
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| d593552dex321.htm | 2459 | 2018-08-14 15:01:49 |
| d593552dex322.htm | 2433 | 2018-08-14 15:01:49 |
| FilingSummary.xml | 24904 | 2018-08-14 15:01:49 |
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| nick-20180630.xsd | 34630 | 2018-08-14 15:01:49 |
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| report.css | 2767 | 2018-08-14 15:01:49 |
| Show.js | 1410 | 2018-08-14 15:01:49 |