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Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Oct. 31, 2021
Stock-Based Compensation |  |  |  |  |  |
Stock-based compensation expense | $ 139,633 | $ 121,003 | $ 370,186 | $ 371,111 |  |
Technology and development |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Stock-based compensation expense | 43,727 | 22,641 | 91,283 | 67,258 |  |
Chief Technology Officer | Technology and development |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Incremental stock-based compensation expense | 14,000 |  | 14,000 |  |  |
Stock Options |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Unrecognized stock-based compensation relating to options | $ 132,000 |  | $ 132,000 |  |  |
Weighted-average period for recognition of stock based expense (in years) |  |  | 2 years 10 months 24 days |  |  |
Options outstanding (in shares) | 13,066,000 |  | 13,066,000 |  | 15,418,000 |
Options expired / forfeited (in shares) |  |  | 744,000 |  |  |
Options granted (in shares) |  |  | 2,806,000 |  |  |
Exercise of common stock options (in shares) |  |  | 4,414,000 |  |  |
Exercisable at the end of the period (in shares) | 9,424,000 |  | 9,424,000 |  |  |
CEO Performance Option | 2016 Incentive Award Plan | Chief Executive Officer |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Unrecognized stock-based compensation relating to options | $ 243,000 |  | $ 243,000 |  |  |
Weighted-average period for recognition of stock based expense (in years) |  |  | 1 year 9 months 18 days |  |  |
Exercise price (in dollars per share) |  |  |  |  |  | $ 68.29
Options outstanding (in shares) | 19,200,000 |  | 19,200,000 |  | 19,200,000 |
Options expired / forfeited (in shares) | 0 |  | 0 |  |  |
Options granted (in shares) | 0 |  | 0 |  |  |
Exercise of common stock options (in shares) | 0 |  | 0 |  |  |
Exercisable at the end of the period (in shares) | 2,400,000 |  | 2,400,000 |  |  |
Stock-based compensation recorded | $ 48,000 | 66,000 | $ 156,000 | 197,000 |  |
Restricted Stock |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Weighted-average period for recognition of stock based expense (in years) |  |  | 3 years |  |  |
Unrecognized stock-based compensation | 652,000 |  | $ 652,000 |  |  |
ESPP |  |  |  |  |  |
Stock-Based Compensation |  |  |  |  |  |
Weighted-average period for recognition of stock based expense (in years) |  |  | 8 months 12 days |  |  |
Unrecognized stock-based compensation | 15,000 |  | $ 15,000 |  |  |
Stock-based compensation expense | $ 7,000 | $ 4,000 | $ 15,000 | $ 46,000 |  |

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