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| 0000920522-18-000058-index.html | 2018-10-31 16:23:09 | |
| 0000920522-18-000058.txt | 2018-10-31 16:23:09 | |
 0000920522-18-000058-xbrl.zip | 267410 | 2018-10-31 16:23:09 |
| ess-20180930.xml | 1990077 | 2018-10-31 16:23:09 |
| ess-20180930.xsd | 58328 | 2018-10-31 16:23:09 |
| ess-20180930_cal.xml | 104457 | 2018-10-31 16:23:09 |
| ess-20180930_def.xml | 408318 | 2018-10-31 16:23:09 |
| ess-20180930_lab.xml | 775078 | 2018-10-31 16:23:09 |
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| ess-93018x10q.htm | 1816957 | 2018-10-31 16:23:09 |
| ess-93018xex121.htm | 185251 | 2018-10-31 16:23:09 |
| ess-93018xex311.htm | 13005 | 2018-10-31 16:23:09 |
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| ess-93018xex321.htm | 6435 | 2018-10-31 16:23:09 |
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| ess-93018xex323.htm | 6726 | 2018-10-31 16:23:09 |
| ess-93018xex324.htm | 6758 | 2018-10-31 16:23:09 |
| FilingSummary.xml | 28296 | 2018-10-31 16:23:09 |
| Financial_Report.xlsx | 81451 | 2018-10-31 16:23:09 |
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| report.css | 2767 | 2018-10-31 16:23:09 |
| Show.js | 1085 | 2018-10-31 16:23:09 |