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Stockholders' Equity - ESPP (Details) - USD ($) $ in Thousands, shares in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Contributions withheld for taxes | $ 1,200 | $ 3,500 | $ 1,200 | $ 6,000
Stock-based compensation expense | $ 39,378 | $ 36,636 | $ 114,378 | $ 100,900
Stock repurchased during period (in shares) | 0.3 | 0.2 | 0.3 | 0.2
Shares issuable pursuant to the ESPP |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Maximum employee contribution as a percentage of salary |  |  | 15.00% |
Offering period duration |  |  | 6 months |
Purchase price of common stock, percent |  |  | 85.00% |
Stock-based compensation expense | $ 500 | $ 600 | $ 2,300 | $ 2,700

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