Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-22-003985-index-headers.html | 2022-02-25 16:08:45 | |
| 0001628280-22-003985-index.html | 2022-02-25 16:08:45 | |
| 0001628280-22-003985.txt | 2022-02-25 16:08:45 | |
 0001628280-22-003985-xbrl.zip | 747998 | 2022-02-25 16:08:45 |
| env-20211231.htm | 3710939 | 2022-02-25 16:08:45 |
| env-20211231.xsd | 96626 | 2022-02-25 16:08:45 |
| env-20211231ex1021.htm | 124073 | 2022-02-25 16:08:45 |
| env-20211231ex211.htm | 16377 | 2022-02-25 16:08:45 |
| env-20211231ex231.htm | 2370 | 2022-02-25 16:08:45 |
| env-20211231ex311.htm | 10471 | 2022-02-25 16:08:45 |
| env-20211231ex312.htm | 10477 | 2022-02-25 16:08:45 |
| env-20211231ex321.htm | 7371 | 2022-02-25 16:08:45 |
| env-20211231ex322.htm | 7401 | 2022-02-25 16:08:45 |
| env-20211231_cal.xml | 159238 | 2022-02-25 16:08:45 |
| env-20211231_def.xml | 678638 | 2022-02-25 16:08:45 |
 env-20211231_g1.jpg | 5243 | 2022-02-25 16:08:45 |
 env-20211231_g2.jpg | 62919 | 2022-02-25 16:08:45 |
 env-20211231_g3.jpg | 35521 | 2022-02-25 16:08:45 |
 env-20211231_g4.jpg | 77079 | 2022-02-25 16:08:45 |
 env-20211231_g5.jpg | 49636 | 2022-02-25 16:08:45 |
| env-20211231_htm.xml | 2998073 | 2022-02-25 16:08:45 |
| env-20211231_lab.xml | 1143098 | 2022-02-25 16:08:45 |
| env-20211231_pre.xml | 935824 | 2022-02-25 16:08:45 |
| FilingSummary.xml | 78235 | 2022-02-25 16:08:45 |
| Financial_Report.xlsx | 186707 | 2022-02-25 16:08:45 |
| MetaLinks.json | 1171633 | 2022-02-25 16:08:45 |
| R1.htm | 64774 | 2022-02-25 16:08:45 |
| R10.htm | 13189 | 2022-02-25 16:08:45 |
| R100.htm | 8522 | 2022-02-25 16:08:45 |
| R101.htm | 11747 | 2022-02-25 16:08:45 |
| R102.htm | 46005 | 2022-02-25 16:08:45 |
| R103.htm | 9173 | 2022-02-25 16:08:45 |
| R104.htm | 14646 | 2022-02-25 16:08:45 |
| R105.htm | 43665 | 2022-02-25 16:08:45 |
| R106.htm | 21151 | 2022-02-25 16:08:45 |
| R107.htm | 62314 | 2022-02-25 16:08:45 |
| R108.htm | 4409 | 2022-02-25 16:08:45 |
| R109.htm | 12717 | 2022-02-25 16:08:45 |
| R11.htm | 69715 | 2022-02-25 16:08:45 |
| R110.htm | 30035 | 2022-02-25 16:08:45 |
| R111.htm | 35491 | 2022-02-25 16:08:45 |
| R112.htm | 30483 | 2022-02-25 16:08:45 |
| R113.htm | 17520 | 2022-02-25 16:08:45 |
| R114.htm | 24873 | 2022-02-25 16:08:45 |
| R115.htm | 57449 | 2022-02-25 16:08:45 |
| R116.htm | 23632 | 2022-02-25 16:08:45 |
| R117.htm | 55580 | 2022-02-25 16:08:45 |
| R118.htm | 22882 | 2022-02-25 16:08:45 |
| R119.htm | 10797 | 2022-02-25 16:08:45 |
| R12.htm | 116586 | 2022-02-25 16:08:45 |
| R120.htm | 26707 | 2022-02-25 16:08:45 |
| R121.htm | 26863 | 2022-02-25 16:08:45 |
| R13.htm | 16877 | 2022-02-25 16:08:45 |
| R14.htm | 47040 | 2022-02-25 16:08:45 |
| R15.htm | 20087 | 2022-02-25 16:08:45 |
| R16.htm | 58001 | 2022-02-25 16:08:45 |
| R17.htm | 32397 | 2022-02-25 16:08:45 |
| R18.htm | 17125 | 2022-02-25 16:08:45 |
| R19.htm | 63497 | 2022-02-25 16:08:45 |
| R2.htm | 7869 | 2022-02-25 16:08:45 |
| R20.htm | 22107 | 2022-02-25 16:08:45 |
| R21.htm | 11898 | 2022-02-25 16:08:45 |
| R22.htm | 72019 | 2022-02-25 16:08:45 |
| R23.htm | 81600 | 2022-02-25 16:08:45 |
| R24.htm | 102542 | 2022-02-25 16:08:45 |
| R25.htm | 13777 | 2022-02-25 16:08:45 |
| R26.htm | 102172 | 2022-02-25 16:08:45 |
| R27.htm | 41151 | 2022-02-25 16:08:45 |
| R28.htm | 60004 | 2022-02-25 16:08:45 |
| R29.htm | 12294 | 2022-02-25 16:08:45 |
| R3.htm | 126575 | 2022-02-25 16:08:45 |
| R30.htm | 20916 | 2022-02-25 16:08:45 |
| R31.htm | 9096 | 2022-02-25 16:08:45 |
| R32.htm | 98267 | 2022-02-25 16:08:45 |
| R33.htm | 27861 | 2022-02-25 16:08:45 |
| R34.htm | 86369 | 2022-02-25 16:08:45 |
| R35.htm | 16756 | 2022-02-25 16:08:45 |
| R36.htm | 47054 | 2022-02-25 16:08:45 |
| R37.htm | 19889 | 2022-02-25 16:08:45 |
| R38.htm | 62964 | 2022-02-25 16:08:45 |
| R39.htm | 22044 | 2022-02-25 16:08:45 |
| R4.htm | 21976 | 2022-02-25 16:08:45 |
| R40.htm | 16062 | 2022-02-25 16:08:45 |
| R41.htm | 35591 | 2022-02-25 16:08:45 |
| R42.htm | 22947 | 2022-02-25 16:08:45 |
| R43.htm | 67598 | 2022-02-25 16:08:45 |
| R44.htm | 82135 | 2022-02-25 16:08:45 |
| R45.htm | 102150 | 2022-02-25 16:08:45 |
| R46.htm | 9227 | 2022-02-25 16:08:45 |
| R47.htm | 99810 | 2022-02-25 16:08:45 |
| R48.htm | 40887 | 2022-02-25 16:08:45 |
| R49.htm | 56228 | 2022-02-25 16:08:45 |
| R5.htm | 101938 | 2022-02-25 16:08:45 |
| R50.htm | 12752 | 2022-02-25 16:08:45 |
| R51.htm | 10960 | 2022-02-25 16:08:45 |
| R52.htm | 65292 | 2022-02-25 16:08:45 |
| R53.htm | 17102 | 2022-02-25 16:08:45 |
| R54.htm | 12484 | 2022-02-25 16:08:45 |
| R55.htm | 14476 | 2022-02-25 16:08:45 |
| R56.htm | 16560 | 2022-02-25 16:08:45 |
| R57.htm | 10056 | 2022-02-25 16:08:45 |
| R58.htm | 22776 | 2022-02-25 16:08:45 |
| R59.htm | 10219 | 2022-02-25 16:08:45 |
| R6.htm | 23017 | 2022-02-25 16:08:45 |
| R60.htm | 16550 | 2022-02-25 16:08:45 |
| R61.htm | 13553 | 2022-02-25 16:08:45 |
| R62.htm | 105917 | 2022-02-25 16:08:45 |
| R63.htm | 12650 | 2022-02-25 16:08:45 |
| R64.htm | 39315 | 2022-02-25 16:08:45 |
| R65.htm | 19475 | 2022-02-25 16:08:45 |
| R66.htm | 25555 | 2022-02-25 16:08:45 |
| R67.htm | 19028 | 2022-02-25 16:08:45 |
| R68.htm | 25772 | 2022-02-25 16:08:45 |
| R69.htm | 17296 | 2022-02-25 16:08:45 |
| R7.htm | 102428 | 2022-02-25 16:08:45 |
| R70.htm | 12223 | 2022-02-25 16:08:45 |
| R71.htm | 26266 | 2022-02-25 16:08:45 |
| R72.htm | 13642 | 2022-02-25 16:08:45 |
| R73.htm | 21434 | 2022-02-25 16:08:45 |
| R74.htm | 39962 | 2022-02-25 16:08:45 |
| R75.htm | 8662 | 2022-02-25 16:08:45 |
| R76.htm | 16149 | 2022-02-25 16:08:45 |
| R77.htm | 14827 | 2022-02-25 16:08:45 |
| R78.htm | 32144 | 2022-02-25 16:08:45 |
| R79.htm | 27740 | 2022-02-25 16:08:45 |
| R8.htm | 25021 | 2022-02-25 16:08:45 |
| R80.htm | 17441 | 2022-02-25 16:08:45 |
| R81.htm | 46305 | 2022-02-25 16:08:45 |
| R82.htm | 78091 | 2022-02-25 16:08:45 |
| R83.htm | 16980 | 2022-02-25 16:08:45 |
| R84.htm | 9001 | 2022-02-25 16:08:45 |
| R85.htm | 24381 | 2022-02-25 16:08:45 |
| R86.htm | 38018 | 2022-02-25 16:08:45 |
| R87.htm | 68029 | 2022-02-25 16:08:45 |
| R88.htm | 42748 | 2022-02-25 16:08:45 |
| R89.htm | 13142 | 2022-02-25 16:08:45 |
| R9.htm | 159353 | 2022-02-25 16:08:45 |
| R90.htm | 13888 | 2022-02-25 16:08:45 |
| R91.htm | 20528 | 2022-02-25 16:08:45 |
| R92.htm | 24060 | 2022-02-25 16:08:45 |
| R93.htm | 36443 | 2022-02-25 16:08:45 |
| R94.htm | 33732 | 2022-02-25 16:08:45 |
| R95.htm | 20229 | 2022-02-25 16:08:45 |
| R96.htm | 33942 | 2022-02-25 16:08:45 |
| R97.htm | 9410 | 2022-02-25 16:08:45 |
| R98.htm | 21254 | 2022-02-25 16:08:45 |
| R99.htm | 6286 | 2022-02-25 16:08:45 |
| report.css | 2768 | 2022-02-25 16:08:45 |
| Show.js | 1086 | 2022-02-25 16:08:45 |