Equity and Equity Compensation Plans - Allocation of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	$ 18,800	$ 18,070	$ 55,382	$ 51,672
Stock-based compensation capitalized in property and equipment	969	930	3,173	2,983
Continuing Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	18,800	16,424	55,148	46,962
Discontinued Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	0	1,646	234	4,710
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	3,037	4,165	10,173	10,771
Cost of revenue | Discontinued Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	0	221	46	872
Technology and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	8,391	6,353	24,759	20,230
Technology and development | Discontinued Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	0	1,018	86	2,806
Marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	1,337	1,002	3,836	2,939
Marketing | Discontinued Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	0	26	19	85
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	6,035	4,904	16,380	13,022
General and administrative | Discontinued Operations
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation from continuing operations	$ 0	$ 381	$ 83	$ 947