Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001628280-21-008866-index-headers.html | 2021-05-04 16:06:45 | |
| 0001628280-21-008866-index.html | 2021-05-04 16:06:45 | |
| 0001628280-21-008866.txt | 2021-05-04 16:06:45 | |
 0001628280-21-008866-xbrl.zip | 403304 | 2021-05-04 16:06:45 |
| FilingSummary.xml | 61376 | 2021-05-04 16:06:45 |
| Financial_Report.xlsx | 139649 | 2021-05-04 16:06:45 |
| MetaLinks.json | 955369 | 2021-05-04 16:06:45 |
| q12021ex311.htm | 7655 | 2021-05-04 16:06:45 |
| q12021ex312.htm | 7775 | 2021-05-04 16:06:45 |
| q12021ex32.htm | 9365 | 2021-05-04 16:06:45 |
| R1.htm | 52214 | 2021-05-04 16:06:45 |
| R10.htm | 14440 | 2021-05-04 16:06:45 |
| R11.htm | 64959 | 2021-05-04 16:06:45 |
| R12.htm | 150016 | 2021-05-04 16:06:45 |
| R13.htm | 92805 | 2021-05-04 16:06:45 |
| R14.htm | 11765 | 2021-05-04 16:06:45 |
| R15.htm | 23558 | 2021-05-04 16:06:45 |
| R16.htm | 60045 | 2021-05-04 16:06:45 |
| R17.htm | 20001 | 2021-05-04 16:06:45 |
| R18.htm | 19995 | 2021-05-04 16:06:45 |
| R19.htm | 47131 | 2021-05-04 16:06:45 |
| R2.htm | 107512 | 2021-05-04 16:06:45 |
| R20.htm | 44349 | 2021-05-04 16:06:45 |
| R21.htm | 82411 | 2021-05-04 16:06:45 |
| R22.htm | 86303 | 2021-05-04 16:06:45 |
| R23.htm | 51210 | 2021-05-04 16:06:45 |
| R24.htm | 14506 | 2021-05-04 16:06:45 |
| R25.htm | 16366 | 2021-05-04 16:06:45 |
| R26.htm | 39719 | 2021-05-04 16:06:45 |
| R27.htm | 70504 | 2021-05-04 16:06:45 |
| R28.htm | 16736 | 2021-05-04 16:06:45 |
| R29.htm | 29467 | 2021-05-04 16:06:45 |
| R3.htm | 24355 | 2021-05-04 16:06:45 |
| R30.htm | 33126 | 2021-05-04 16:06:45 |
| R31.htm | 49346 | 2021-05-04 16:06:45 |
| R32.htm | 95822 | 2021-05-04 16:06:45 |
| R33.htm | 89968 | 2021-05-04 16:06:45 |
| R34.htm | 12773 | 2021-05-04 16:06:45 |
| R35.htm | 24996 | 2021-05-04 16:06:45 |
| R36.htm | 97603 | 2021-05-04 16:06:45 |
| R37.htm | 49838 | 2021-05-04 16:06:45 |
| R38.htm | 44844 | 2021-05-04 16:06:45 |
| R39.htm | 106715 | 2021-05-04 16:06:45 |
| R4.htm | 92463 | 2021-05-04 16:06:45 |
| R40.htm | 78166 | 2021-05-04 16:06:45 |
| R41.htm | 47680 | 2021-05-04 16:06:45 |
| R42.htm | 30342 | 2021-05-04 16:06:45 |
| R43.htm | 71925 | 2021-05-04 16:06:45 |
| R44.htm | 16421 | 2021-05-04 16:06:45 |
| R45.htm | 29020 | 2021-05-04 16:06:45 |
| R46.htm | 6006 | 2021-05-04 16:06:45 |
| R47.htm | 6803 | 2021-05-04 16:06:45 |
| R48.htm | 33705 | 2021-05-04 16:06:45 |
| R49.htm | 7576 | 2021-05-04 16:06:45 |
| R5.htm | 60821 | 2021-05-04 16:06:45 |
| R50.htm | 20147 | 2021-05-04 16:06:45 |
| R51.htm | 7672 | 2021-05-04 16:06:45 |
| R52.htm | 27774 | 2021-05-04 16:06:45 |
| R53.htm | 39116 | 2021-05-04 16:06:45 |
| R54.htm | 42996 | 2021-05-04 16:06:45 |
| R55.htm | 4359 | 2021-05-04 16:06:45 |
| R56.htm | 27001 | 2021-05-04 16:06:45 |
| R57.htm | 37106 | 2021-05-04 16:06:45 |
| R58.htm | 16045 | 2021-05-04 16:06:45 |
| R59.htm | 36764 | 2021-05-04 16:06:45 |
| R6.htm | 45460 | 2021-05-04 16:06:45 |
| R60.htm | 11802 | 2021-05-04 16:06:45 |
| R61.htm | 21343 | 2021-05-04 16:06:45 |
| R62.htm | 6730 | 2021-05-04 16:06:45 |
| R63.htm | 18754 | 2021-05-04 16:06:45 |
| R64.htm | 33624 | 2021-05-04 16:06:45 |
| R65.htm | 17268 | 2021-05-04 16:06:45 |
| R66.htm | 27037 | 2021-05-04 16:06:45 |
| R67.htm | 6835 | 2021-05-04 16:06:45 |
| R68.htm | 21922 | 2021-05-04 16:06:45 |
| R69.htm | 45570 | 2021-05-04 16:06:45 |
| R7.htm | 4687 | 2021-05-04 16:06:45 |
| R70.htm | 13894 | 2021-05-04 16:06:45 |
| R71.htm | 13946 | 2021-05-04 16:06:45 |
| R72.htm | 54810 | 2021-05-04 16:06:45 |
| R73.htm | 12786 | 2021-05-04 16:06:45 |
| R74.htm | 34532 | 2021-05-04 16:06:45 |
| R75.htm | 27312 | 2021-05-04 16:06:45 |
| R76.htm | 13326 | 2021-05-04 16:06:45 |
| R77.htm | 13443 | 2021-05-04 16:06:45 |
| R78.htm | 15498 | 2021-05-04 16:06:45 |
| R79.htm | 19007 | 2021-05-04 16:06:45 |
| R8.htm | 108150 | 2021-05-04 16:06:45 |
| R80.htm | 19657 | 2021-05-04 16:06:45 |
| R81.htm | 54012 | 2021-05-04 16:06:45 |
| R82.htm | 34653 | 2021-05-04 16:06:45 |
| R83.htm | 15572 | 2021-05-04 16:06:45 |
| R84.htm | 10643 | 2021-05-04 16:06:45 |
| R85.htm | 14951 | 2021-05-04 16:06:45 |
| R86.htm | 13520 | 2021-05-04 16:06:45 |
| R87.htm | 6753 | 2021-05-04 16:06:45 |
| R88.htm | 7974 | 2021-05-04 16:06:45 |
| R89.htm | 5039 | 2021-05-04 16:06:45 |
| R9.htm | 13172 | 2021-05-04 16:06:45 |
| R90.htm | 34732 | 2021-05-04 16:06:45 |
| R91.htm | 12004 | 2021-05-04 16:06:45 |
| R92.htm | 8722 | 2021-05-04 16:06:45 |
| R93.htm | 41384 | 2021-05-04 16:06:45 |
| R94.htm | 39263 | 2021-05-04 16:06:45 |
| R95.htm | 13469 | 2021-05-04 16:06:45 |
| R96.htm | 45183 | 2021-05-04 16:06:45 |
| report.css | 2768 | 2021-05-04 16:06:45 |
| see-20210331.htm | 2449907 | 2021-05-04 16:06:45 |
| see-20210331.xsd | 79818 | 2021-05-04 16:06:45 |
| see-20210331_cal.xml | 184384 | 2021-05-04 16:06:45 |
| see-20210331_def.xml | 352878 | 2021-05-04 16:06:45 |
 see-20210331_g1.jpg | 11916 | 2021-05-04 16:06:45 |
| see-20210331_htm.xml | 2592468 | 2021-05-04 16:06:45 |
| see-20210331_lab.xml | 893505 | 2021-05-04 16:06:45 |
| see-20210331_pre.xml | 615448 | 2021-05-04 16:06:45 |
| Show.js | 1086 | 2021-05-04 16:06:45 |