Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001590714-20-000050-index-headers.html | 2020-04-30 07:07:55 | |
| 0001590714-20-000050-index.html | 2020-04-30 07:07:55 | |
| 0001590714-20-000050.txt | 2020-04-30 07:07:55 | |
 0001590714-20-000050-xbrl.zip | 278532 | 2020-04-30 07:07:55 |
| a8kearningsreleaseex99.htm | 584156 | 2020-04-30 07:07:55 |
| esi-20200428.htm | 52339 | 2020-04-30 07:07:55 |
| esi-20200428.xsd | 2852 | 2020-04-30 07:07:55 |
| esi-20200428_cal.xml | 755 | 2020-04-30 07:07:55 |
| esi-20200428_def.xml | 1696 | 2020-04-30 07:07:55 |
 esi-20200428_g1.jpg | 293021 | 2020-04-30 07:07:55 |
| esi-20200428_htm.xml | 11545 | 2020-04-30 07:07:55 |
| esi-20200428_lab.xml | 25595 | 2020-04-30 07:07:55 |
| esi-20200428_pre.xml | 13303 | 2020-04-30 07:07:55 |
| esicooretirementpr.htm | 8181 | 2020-04-30 07:07:55 |
| FilingSummary.xml | 1849 | 2020-04-30 07:07:55 |
| Financial_Report.xlsx | 5831 | 2020-04-30 07:07:55 |
 image11.jpg | 293021 | 2020-04-30 07:07:55 |
 image111.jpg | 293021 | 2020-04-30 07:07:55 |
| MetaLinks.json | 19082 | 2020-04-30 07:07:55 |
| R1.htm | 40195 | 2020-04-30 07:07:55 |
| report.css | 2767 | 2020-04-30 07:07:55 |
| Show.js | 1085 | 2020-04-30 07:07:55 |