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 0001529628-20-000022-index-headers.html | 2020-02-25 19:47:40 | |
| 0001529628-20-000022-index.html | 2020-02-25 19:47:40 | |
| 0001529628-20-000022.txt | 2020-02-25 19:47:40 | |
 0001529628-20-000022-xbrl.zip | 27803 | 2020-02-25 19:47:40 |
| a2019yeexhibit991.htm | 327525 | 2020-02-25 19:47:40 |
| FilingSummary.xml | 1723 | 2020-02-25 19:47:40 |
| Financial_Report.xlsx | 5715 | 2020-02-25 19:47:40 |
| MetaLinks.json | 17477 | 2020-02-25 19:47:40 |
| R1.htm | 37114 | 2020-02-25 19:47:40 |
| report.css | 2767 | 2020-02-25 19:47:40 |
| Show.js | 1085 | 2020-02-25 19:47:40 |
| snd-20200226.htm | 45192 | 2020-02-25 19:47:40 |
| snd-20200226.xsd | 2571 | 2020-02-25 19:47:40 |
| snd-20200226_cal.xml | 720 | 2020-02-25 19:47:40 |
| snd-20200226_def.xml | 1684 | 2020-02-25 19:47:40 |
| snd-20200226_htm.xml | 10321 | 2020-02-25 19:47:40 |
| snd-20200226_lab.xml | 23206 | 2020-02-25 19:47:40 |
| snd-20200226_pre.xml | 12187 | 2020-02-25 19:47:40 |