Employee Benefit Plans - Summary of Stock Option Activity (Details) - $ / shares
|
3 Months Ended |
12 Months Ended |
Mar. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
| Summary of Stock Option Activity |
|
|
|
| Number of Options, Outstanding, Beginning Balance |
36,557,759
|
28,189,475
|
27,046,177
|
| Number of Options, Granted |
1,937,968
|
14,386,426
|
8,828,538
|
| Number of Options, Exercised |
|
(1,297,977)
|
(916,527)
|
| Number of Options, Forfeited |
|
(4,720,165)
|
(6,768,713)
|
| Number of Options, Outstanding, Ending Balance |
|
36,557,759
|
28,189,475
|
| Weighted-Average Exercise Price Per Share, Outstanding, Beginning Balance |
$ 2.25
|
$ 1.48
|
$ 1.31
|
| Weighted-Average Exercise Price Per Share, Granted |
|
3.59
|
1.99
|
| Weighted-Average Exercise Price Per Share, Exercised |
|
1.53
|
0.74
|
| Weighted-Average Exercise Price Per Share, Forfeited |
|
1.88
|
1.57
|
| Weighted-Average Exercise Price Per Share, Outstanding, Ending Balance |
|
$ 2.25
|
$ 1.48
|
| 2020 Equity Incentive Plan [Member] |
|
|
|
| Summary of Stock Option Activity |
|
|
|
| Number of Options, Outstanding, Beginning Balance |
0
|
|
|
| Number of Options, Granted |
1,937,968
|
|
|
| Number of Options, Exercised |
0
|
|
|
| Number of Options, Forfeited |
(13,442)
|
|
|
| Number of Options, Outstanding, Ending Balance |
1,924,526
|
0
|
|
| Weighted-Average Exercise Price Per Share, Outstanding, Beginning Balance |
$ 0
|
|
|
| Weighted-Average Exercise Price Per Share, Granted |
8.88
|
|
|
| Weighted-Average Exercise Price Per Share, Exercised |
0
|
|
|
| Weighted-Average Exercise Price Per Share, Forfeited |
8.88
|
|
|
| Weighted-Average Exercise Price Per Share, Outstanding, Ending Balance |
$ 8.87
|
$ 0
|
|
| 2014 Equity Incentive Plan [Member] |
|
|
|
| Summary of Stock Option Activity |
|
|
|
| Number of Options, Outstanding, Beginning Balance |
36,513,193
|
|
|
| Number of Options, Granted |
0
|
|
|
| Number of Options, Exercised |
(761,480)
|
|
|
| Number of Options, Forfeited |
(267,115)
|
|
|
| Number of Options, Outstanding, Ending Balance |
35,484,598
|
36,513,193
|
|
| Weighted-Average Exercise Price Per Share, Outstanding, Beginning Balance |
$ 2.26
|
|
|
| Weighted-Average Exercise Price Per Share, Granted |
0
|
|
|
| Weighted-Average Exercise Price Per Share, Exercised |
1.63
|
|
|
| Weighted-Average Exercise Price Per Share, Forfeited |
2.43
|
|
|
| Weighted-Average Exercise Price Per Share, Outstanding, Ending Balance |
$ 2.27
|
$ 2.26
|
|