Employee Benefit Plans - Additional Information (Details)
$ / shares in Units, $ in Thousands |
1 Months Ended |
3 Months Ended |
12 Months Ended |
|
|
|
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Feb. 29, 2020
$ / shares
shares
|
Mar. 31, 2021
USD ($)
$ / shares
shares
|
Mar. 31, 2020
USD ($)
$ / shares
|
Dec. 31, 2020
USD ($)
$ / shares
shares
|
Dec. 31, 2019
USD ($)
$ / shares
shares
|
Dec. 31, 2018
shares
|
Dec. 31, 2017
$ / shares
shares
|
Nov. 30, 2016
$ / shares
shares
|
Sep. 30, 2015
$ / shares
shares
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Employer matching contribution, percent of match |
|
100.00%
|
|
100.00%
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|
|
|
|
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| Employer matching contribution, percent of employees' gross pay |
|
4.00%
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4.00%
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|
|
|
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| Employer maximum annual contributions per employee, percent |
|
4.00%
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4.00%
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| Employer discretionary contribution amount |
|
$ 300
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$ 400
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$ 1,200
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$ 1,300
|
|
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| Employers matching contribution, vesting percentage |
|
100.00%
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|
100.00%
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| Stock options, granted | shares |
|
1,937,968
|
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14,386,426
|
8,828,538
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| Cost not yet recognized, period for recognition |
|
4 years 9 months 10 days
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2 years 6 months
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| Stock options, grants in period, weighted average grant date fair value | $ / shares |
|
$ 3.36
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$ 1.82
|
$ 1.04
|
$ 0.62
|
|
|
|
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| Stock compensation expense recognized |
|
$ 42,700
|
$ 1,977
|
$ 7,100
|
$ 3,300
|
|
|
|
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| Unvested stock options, unrecognized stock-based compensation |
|
511,500
|
|
14,900
|
9,000
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|
|
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| Stock options, outstanding, intrinsic value |
|
$ 187,800
|
|
$ 445,300
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|
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| Stock options, outstanding, weighted average remaining contractual term |
|
7 years 3 months 18 days
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7 years 9 months
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| Stock options, exercisable, number | shares |
|
21,957,416
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|
19,333,153
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|
|
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| Stock options, exercisable, intrinsic value |
|
$ 120,100
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|
$ 246,200
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| Stock options, exercisable, weighted average exercise price | $ / shares |
|
$ 2.09
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|
$ 1.62
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| Stock options, exercisable, weighted average remaining contractual term |
|
6 years 5 months 4 days
|
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6 years 10 months 6 days
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|
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| Warrants issued to purchase common stock shares | shares |
|
|
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122,052
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139,629
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| Exercise price of warrants | $ / shares |
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$ 3.45
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$ 2.61
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| Total fair value of warrants vested |
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$ 0
|
1,000
|
$ 7,000
|
900
|
|
|
|
|
| Stock options |
|
6,500
|
100
|
$ 5,800
|
$ 1,300
|
|
|
|
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| Common Stock, Par or Stated Value Per Share | $ / shares |
|
|
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$ 0.0001
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$ 0.0001
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares |
|
|
|
36,557,759
|
28,189,475
|
27,046,177
|
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
|
|
|
2.0681
|
2.0681
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value |
|
|
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$ 5,500
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$ 3,500
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| Class or warrants exercisable during period shares | shares |
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261,681
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| Class or warrants exercisable during period aggegate instrinic value |
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$ 4,600
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| Class of warrant or right weighted average exercise price of warrants or rights | $ / shares |
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$ 3.00
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| Class of warrant or right weighted average remaining contractual term |
|
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6 years 4 months 2 days
|
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| Subsequent Event [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Stock options, grants in period, weighted average grant date fair value | $ / shares |
$ 1.18
|
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| Common Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Warrants issued to purchase common stock shares | shares |
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4,342,956
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2,100,000
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| Exercise price of warrants | $ / shares |
|
|
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$ 0.5039
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$ 1.04
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| Stockholders' Equity Note, Stock Split, Conversion Ratio |
|
|
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|
2.0681
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| 2014 Equity Incentive Plan [Member] |
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|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Proceeds from Stock Options Exercised |
|
$ 1,200
|
100
|
$ 2,100
|
$ 700
|
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| Common Stock, Capital Shares Reserved for Future Issuance | shares |
|
|
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17,844,505
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares |
|
46,231,470
|
|
36,557,759
|
28,189,475
|
|
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| 2014 Equity Incentive Plan [Member] | Common Stock [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Common Stock, Capital Shares Reserved for Future Issuance | shares |
|
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54,402,264
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37,055,557
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| Number of shares issued under share-based payment arrangement. | shares |
|
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17,844,505
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8,866,082
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| 2020 Equity And Management Incentive Plan [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
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| Common Stock, Par or Stated Value Per Share | $ / shares |
|
$ 0.0001
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| Stock Options [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Stock compensation expense recognized |
|
$ 3,694
|
1,977
|
|
|
|
|
|
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| Stock Options [Member] | 2014 Equity Incentive Plan [Member] |
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Terms of award |
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The exercise prices, vesting and other restrictions are determined at the discretion of the Board, except that the exercise price per share of incentive stock options may not be less than 100% of the fair value of a share of common stock on the date of grant.
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The exercise prices, vesting and other restrictions are determined at the discretion of the Board, except that the exercise price per share of incentive stock options may not be less than 100% of the fair value of the common stock on the date of grant.
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| Expiration period |
|
10 years
|
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10 years
|
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| Vesting period |
|
4 years
|
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5 years
|
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| RSUs [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Stock options, grants in period, weighted average grant date fair value | $ / shares |
|
$ 16.02
|
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| Stock compensation expense recognized |
|
$ 14,052
|
0
|
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| Number of Shares Available for Grant | shares |
|
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0
|
0
|
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| PRSUs [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
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| Cost not yet recognized, period for recognition |
|
4 years 9 months 10 days
|
|
|
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|
|
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| Stock options, grants in period, weighted average grant date fair value | $ / shares |
|
$ 9.59
|
|
|
|
|
|
|
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| Stock compensation expense recognized |
|
$ 24,967
|
$ 0
|
|
|
|
|
|
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| Unvested stock options, unrecognized stock-based compensation |
|
$ 238,300
|
|
|
|
|
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| Non-qualified stock options [member] |
|
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
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| Stock compensation expense recognized |
|
|
|
$ 1,800
|
|
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| Non-qualified stock options [member] | Subsequent Event [Member] |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Number of Shares Available for Grant | shares |
3,669,608
|
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