Condensed Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Stock based compensation expense	$ 9,702	$ 6,642	$ 15,556	$ 23,477
Cost of revenue.
Stock based compensation expense				1
Selling and marketing
Stock based compensation expense	1,270	1,424	1,902	3,506
Product and technology
Stock based compensation expense	1,840	1,836	2,977	4,154
General and administrative
Stock based compensation expense	$ 6,592	$ 3,382	$ 10,677	$ 15,816