Common Stock and Stockholders' Equity - Total Compensation Costs for Stock-Based Awards (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 34,047	$ 52,945	$ 118,479	$ 154,708
Capitalized stock-based compensation	2,951	5,028	10,238	14,606
Total stock-based compensation	36,998	57,973	128,717	169,314
Cost of revenue (exclusive of depreciation and amortization, which are shown separately)
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	1,075	1,464	3,782	4,060
Advertising and marketing
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	3,856	4,399	11,023	11,527
Sales
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	5,204	9,110	20,124	27,055
Technology and development
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	8,152	14,566	27,134	42,984
General and administrative
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total stock-based compensation expense	$ 15,760	$ 23,406	$ 56,416	$ 69,082