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Equity Awards and Instruments - Summary of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | $ 11,752 | $ 20,405 | $ 32,853 | $ 23,617 |
Stock-based compensation expense accrued | 6,126 |  | 6,126 |  | $ 6,835
Cost of Revenues |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 235 | 2,604 | 685 | 2,779 |
Cost of Revenues | Subscriptions and licenses |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 323 | 896 | 822 | 943 |
Research and development |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 5,227 | 6,955 | 14,069 | 8,110 |
Selling and marketing |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 1,582 | 5,183 | 3,885 | 5,987 |
General and administrative |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 4,385 | 4,767 | 13,392 | 5,798 |
IPO vested restricted stock and RSU expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 0 | 15,445 | 0 | 15,445 |
Stock option expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 773 | 2,893 | 2,494 | 5,849 |
Restricted stock and RSUs expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 4,681 | 2,067 | 11,139 | 2,104 |
Stock grants expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 0 | 0 | 450 | 219 |
Bonus Plan expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 5,586 | 0 | 17,181 | 0 |
DCP elective participant deferrals expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | 173 | 0 | 173 | 0 |
ESPP expense |  |  |  |  |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |  |
Stock-based compensation expense | $ 539 | $ 0 | $ 1,416 | $ 0 |

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