Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001140361-13-009003-index-headers.html | 2013-02-22 19:07:36 | |
| 0001140361-13-009003-index.html | 2013-02-22 19:07:36 | |
| 0001140361-13-009003.txt | 2013-02-22 19:07:36 | |
 0001140361-13-009003-xbrl.zip | 487448 | 2013-02-22 19:07:36 |
 chart.jpg | 66087 | 2013-02-22 19:07:36 |
| ess-20121231.xml | 5162975 | 2013-02-22 19:07:36 |
| ess-20121231.xsd | 176532 | 2013-02-22 19:07:36 |
| ess-20121231_cal.xml | 107843 | 2013-02-22 19:07:36 |
| ess-20121231_def.xml | 568036 | 2013-02-22 19:07:36 |
| ess-20121231_lab.xml | 1830833 | 2013-02-22 19:07:36 |
| ess-20121231_pre.xml | 895778 | 2013-02-22 19:07:36 |
| ex12_1.htm | 91480 | 2013-02-22 19:07:36 |
| ex21_1.htm | 116156 | 2013-02-22 19:07:36 |
| ex23_1.htm | 4884 | 2013-02-22 19:07:36 |
| ex31_1.htm | 15952 | 2013-02-22 19:07:36 |
| ex31_2.htm | 16069 | 2013-02-22 19:07:36 |
| ex32_1.htm | 5611 | 2013-02-22 19:07:36 |
| ex32_2.htm | 5335 | 2013-02-22 19:07:36 |
| FilingSummary.xml | 36527 | 2013-02-22 19:07:36 |
| Financial_Report.xls | 4321077 | 2013-02-22 19:07:36 |
| form10k.htm | 4784601 | 2013-02-22 19:07:36 |
 image.jpg | 5244 | 2013-02-22 19:07:36 |
| R1.htm | 37268 | 2013-02-22 19:07:36 |
| R10.htm | 128853 | 2013-02-22 19:07:36 |
| R11.htm | 166478 | 2013-02-22 19:07:36 |
| R12.htm | 25120 | 2013-02-22 19:07:36 |
| R13.htm | 15022 | 2013-02-22 19:07:36 |
| R14.htm | 34625 | 2013-02-22 19:07:36 |
| R15.htm | 25788 | 2013-02-22 19:07:36 |
| R16.htm | 56581 | 2013-02-22 19:07:36 |
| R17.htm | 17930 | 2013-02-22 19:07:36 |
| R18.htm | 16417 | 2013-02-22 19:07:36 |
| R19.htm | 27190 | 2013-02-22 19:07:36 |
| R2.htm | 145867 | 2013-02-22 19:07:36 |
| R20.htm | 79798 | 2013-02-22 19:07:36 |
| R21.htm | 183302 | 2013-02-22 19:07:36 |
| R22.htm | 80654 | 2013-02-22 19:07:36 |
| R23.htm | 9612 | 2013-02-22 19:07:36 |
| R24.htm | 17313 | 2013-02-22 19:07:36 |
| R25.htm | 7622 | 2013-02-22 19:07:36 |
| R26.htm | 96255 | 2013-02-22 19:07:36 |
| R27.htm | 817674 | 2013-02-22 19:07:36 |
| R28.htm | 188872 | 2013-02-22 19:07:36 |
| R29.htm | 91190 | 2013-02-22 19:07:36 |
| R3.htm | 31064 | 2013-02-22 19:07:36 |
| R30.htm | 141554 | 2013-02-22 19:07:36 |
| R31.htm | 24092 | 2013-02-22 19:07:36 |
| R32.htm | 31794 | 2013-02-22 19:07:36 |
| R33.htm | 30332 | 2013-02-22 19:07:36 |
| R34.htm | 51434 | 2013-02-22 19:07:36 |
| R35.htm | 13294 | 2013-02-22 19:07:36 |
| R36.htm | 12555 | 2013-02-22 19:07:36 |
| R37.htm | 76163 | 2013-02-22 19:07:36 |
| R38.htm | 181895 | 2013-02-22 19:07:36 |
| R39.htm | 77386 | 2013-02-22 19:07:36 |
| R4.htm | 141451 | 2013-02-22 19:07:36 |
| R40.htm | 93541 | 2013-02-22 19:07:36 |
| R41.htm | 22717 | 2013-02-22 19:07:36 |
| R42.htm | 170612 | 2013-02-22 19:07:36 |
| R43.htm | 889737 | 2013-02-22 19:07:36 |
| R44.htm | 39763 | 2013-02-22 19:07:36 |
| R45.htm | 68448 | 2013-02-22 19:07:36 |
| R46.htm | 48044 | 2013-02-22 19:07:36 |
| R47.htm | 69694 | 2013-02-22 19:07:36 |
| R48.htm | 117981 | 2013-02-22 19:07:36 |
| R49.htm | 53886 | 2013-02-22 19:07:36 |
| R5.htm | 45326 | 2013-02-22 19:07:36 |
| R50.htm | 30890 | 2013-02-22 19:07:36 |
| R51.htm | 61044 | 2013-02-22 19:07:36 |
| R52.htm | 101561 | 2013-02-22 19:07:36 |
| R53.htm | 57893 | 2013-02-22 19:07:36 |
| R54.htm | 24591 | 2013-02-22 19:07:36 |
| R55.htm | 39549 | 2013-02-22 19:07:36 |
| R56.htm | 51207 | 2013-02-22 19:07:36 |
| R57.htm | 77364 | 2013-02-22 19:07:36 |
| R58.htm | 42590 | 2013-02-22 19:07:36 |
| R59.htm | 106696 | 2013-02-22 19:07:36 |
| R6.htm | 98139 | 2013-02-22 19:07:36 |
| R60.htm | 11449 | 2013-02-22 19:07:36 |
| R61.htm | 26744 | 2013-02-22 19:07:36 |
| R62.htm | 27016 | 2013-02-22 19:07:36 |
| R63.htm | 47981 | 2013-02-22 19:07:36 |
| R64.htm | 1433340 | 2013-02-22 19:07:36 |
| R7.htm | 225935 | 2013-02-22 19:07:36 |
| R8.htm | 6458 | 2013-02-22 19:07:36 |
| R9.htm | 13219 | 2013-02-22 19:07:36 |
| report.css | 2721 | 2013-02-22 19:07:36 |
| Show.js | 6423 | 2013-02-22 19:07:36 |