Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000350797-20-000087-index-headers.html | 2020-06-05 16:26:03 | |
| 0000350797-20-000087-index.html | 2020-06-05 16:26:03 | |
| 0000350797-20-000087.txt | 2020-06-05 16:26:03 | |
 0000350797-20-000087-xbrl.zip | 426655 | 2020-06-05 16:26:03 |
| ev-20200430.htm | 5270123 | 2020-06-05 16:26:03 |
| ev-20200430.xsd | 155084 | 2020-06-05 16:26:03 |
| ev-20200430_cal.xml | 174217 | 2020-06-05 16:26:03 |
| ev-20200430_def.xml | 814300 | 2020-06-05 16:26:03 |
| ev-20200430_htm.xml | 3520767 | 2020-06-05 16:26:03 |
| ev-20200430_lab.xml | 1317385 | 2020-06-05 16:26:03 |
| ev-20200430_pre.xml | 1108890 | 2020-06-05 16:26:03 |
| FilingSummary.xml | 63623 | 2020-06-05 16:26:03 |
| Financial_Report.xlsx | 117007 | 2020-06-05 16:26:03 |
| MetaLinks.json | 1260774 | 2020-06-05 16:26:03 |
| R1.htm | 53747 | 2020-06-05 16:26:03 |
| R10.htm | 21506 | 2020-06-05 16:26:03 |
| R11.htm | 74641 | 2020-06-05 16:26:03 |
| R12.htm | 131209 | 2020-06-05 16:26:03 |
| R13.htm | 116200 | 2020-06-05 16:26:03 |
| R14.htm | 287264 | 2020-06-05 16:26:03 |
| R15.htm | 47576 | 2020-06-05 16:26:03 |
| R16.htm | 10115 | 2020-06-05 16:26:03 |
| R17.htm | 68846 | 2020-06-05 16:26:03 |
| R18.htm | 7674 | 2020-06-05 16:26:03 |
| R19.htm | 82286 | 2020-06-05 16:26:03 |
| R2.htm | 100909 | 2020-06-05 16:26:03 |
| R20.htm | 91119 | 2020-06-05 16:26:03 |
| R21.htm | 6106 | 2020-06-05 16:26:03 |
| R22.htm | 64516 | 2020-06-05 16:26:03 |
| R23.htm | 51288 | 2020-06-05 16:26:03 |
| R24.htm | 27661 | 2020-06-05 16:26:03 |
| R25.htm | 113895 | 2020-06-05 16:26:03 |
| R26.htm | 38102 | 2020-06-05 16:26:03 |
| R27.htm | 6481 | 2020-06-05 16:26:03 |
| R28.htm | 57729 | 2020-06-05 16:26:03 |
| R29.htm | 37557 | 2020-06-05 16:26:03 |
| R3.htm | 15065 | 2020-06-05 16:26:03 |
| R30.htm | 16066 | 2020-06-05 16:26:03 |
| R31.htm | 21127 | 2020-06-05 16:26:03 |
| R32.htm | 70066 | 2020-06-05 16:26:03 |
| R33.htm | 116299 | 2020-06-05 16:26:03 |
| R34.htm | 111780 | 2020-06-05 16:26:03 |
| R35.htm | 276822 | 2020-06-05 16:26:03 |
| R36.htm | 50383 | 2020-06-05 16:26:03 |
| R37.htm | 69969 | 2020-06-05 16:26:03 |
| R38.htm | 82039 | 2020-06-05 16:26:03 |
| R39.htm | 86979 | 2020-06-05 16:26:03 |
| R4.htm | 82765 | 2020-06-05 16:26:03 |
| R40.htm | 63748 | 2020-06-05 16:26:03 |
| R41.htm | 44382 | 2020-06-05 16:26:03 |
| R42.htm | 26349 | 2020-06-05 16:26:03 |
| R43.htm | 113018 | 2020-06-05 16:26:03 |
| R44.htm | 37448 | 2020-06-05 16:26:03 |
| R45.htm | 50449 | 2020-06-05 16:26:03 |
| R46.htm | 37152 | 2020-06-05 16:26:03 |
| R47.htm | 15975 | 2020-06-05 16:26:03 |
| R48.htm | 18911 | 2020-06-05 16:26:03 |
| R49.htm | 22557 | 2020-06-05 16:26:03 |
| R5.htm | 28299 | 2020-06-05 16:26:03 |
| R50.htm | 8719 | 2020-06-05 16:26:03 |
| R51.htm | 6566 | 2020-06-05 16:26:03 |
| R52.htm | 11637 | 2020-06-05 16:26:03 |
| R53.htm | 15838 | 2020-06-05 16:26:03 |
| R54.htm | 14560 | 2020-06-05 16:26:03 |
| R55.htm | 51820 | 2020-06-05 16:26:03 |
| R56.htm | 14735 | 2020-06-05 16:26:03 |
| R57.htm | 16328 | 2020-06-05 16:26:03 |
| R58.htm | 20045 | 2020-06-05 16:26:03 |
| R59.htm | 14213 | 2020-06-05 16:26:03 |
| R6.htm | 122005 | 2020-06-05 16:26:03 |
| R60.htm | 14348 | 2020-06-05 16:26:03 |
| R61.htm | 17927 | 2020-06-05 16:26:03 |
| R62.htm | 56224 | 2020-06-05 16:26:03 |
| R63.htm | 93460 | 2020-06-05 16:26:03 |
| R64.htm | 18280 | 2020-06-05 16:26:03 |
| R65.htm | 17047 | 2020-06-05 16:26:03 |
| R66.htm | 5963 | 2020-06-05 16:26:03 |
| R67.htm | 8963 | 2020-06-05 16:26:03 |
| R68.htm | 9127 | 2020-06-05 16:26:03 |
| R69.htm | 15948 | 2020-06-05 16:26:03 |
| R7.htm | 4782 | 2020-06-05 16:26:03 |
| R70.htm | 12869 | 2020-06-05 16:26:03 |
| R71.htm | 19475 | 2020-06-05 16:26:03 |
| R72.htm | 26732 | 2020-06-05 16:26:03 |
| R73.htm | 5598 | 2020-06-05 16:26:03 |
| R74.htm | 27952 | 2020-06-05 16:26:03 |
| R75.htm | 15121 | 2020-06-05 16:26:03 |
| R76.htm | 25753 | 2020-06-05 16:26:03 |
| R77.htm | 7542 | 2020-06-05 16:26:03 |
| R78.htm | 24267 | 2020-06-05 16:26:03 |
| R79.htm | 24339 | 2020-06-05 16:26:03 |
| R8.htm | 143601 | 2020-06-05 16:26:03 |
| R80.htm | 26333 | 2020-06-05 16:26:03 |
| R81.htm | 28147 | 2020-06-05 16:26:03 |
| R82.htm | 27331 | 2020-06-05 16:26:03 |
| R83.htm | 45374 | 2020-06-05 16:26:03 |
| R84.htm | 12760 | 2020-06-05 16:26:03 |
| R85.htm | 27793 | 2020-06-05 16:26:03 |
| R86.htm | 22701 | 2020-06-05 16:26:03 |
| R87.htm | 21485 | 2020-06-05 16:26:03 |
| R88.htm | 10760 | 2020-06-05 16:26:03 |
| R89.htm | 42479 | 2020-06-05 16:26:03 |
| R9.htm | 13576 | 2020-06-05 16:26:03 |
| R90.htm | 5120 | 2020-06-05 16:26:03 |
| R91.htm | 22950 | 2020-06-05 16:26:03 |
| R92.htm | 16941 | 2020-06-05 16:26:03 |
| R93.htm | 30090 | 2020-06-05 16:26:03 |
| R94.htm | 13137 | 2020-06-05 16:26:03 |
| R95.htm | 7117 | 2020-06-05 16:26:03 |
| R96.htm | 14053 | 2020-06-05 16:26:03 |
| report.css | 2767 | 2020-06-05 16:26:03 |
| Show.js | 1086 | 2020-06-05 16:26:03 |
| tv523070ex311.htm | 12596 | 2020-06-05 16:26:03 |
| tv523070ex312.htm | 12453 | 2020-06-05 16:26:03 |
| tv523070ex321.htm | 8643 | 2020-06-05 16:26:03 |
| tv523070ex322.htm | 8648 | 2020-06-05 16:26:03 |