CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 212,702	$ 196,010	$ 420,464	$ 375,656
Cost of revenue	36,993	32,501	73,642	59,909
Gross profit	175,709	163,509	346,822	315,747
Operating expenses:
Research and product development	58,829	48,912	116,157	90,923
Marketing and sales	68,743	70,784	181,649	168,756
General and administrative	39,190	284,730	75,171	304,246
Total operating expenses	166,762	404,426	372,977	563,925
Operating income/(loss)	8,947	(240,917)	(26,155)	(248,178)
Interest expense	(3,319)	(2,827)	(5,768)	(6,087)
Other income/(loss), net	6,217	(1,201)	7,728	2,392
Income/(loss) before benefit from/(provision for) income taxes	11,845	(244,945)	(24,195)	(251,873)
Benefit from/(provision for) income taxes	52,651	10,413	(4,169)	16,195
Net income/(loss)	64,496	(234,532)	(28,364)	(235,678)
Net income/(loss) attributable to Class A, Class B and Class C common stockholders, basic	64,496	(234,532)	(28,364)	(235,678)
Net income/(loss) attributable to Class A, Class B and Class C common stockholders, dilutive	$ 64,496	$ (234,532)	$ (28,364)	$ (235,678)
Net income/(loss) per share attributable to Class A, Class B, and Class C common stockholders, basic (in dollars per share)	$ 0.46	$ (3.22)	$ (0.20)	$ (4.54)
Net income/(loss) per share attributable to Class A, Class B, and Class C common stockholders, dilutive (in dollars per share)	$ 0.45	$ (3.22)	$ (0.20)	$ (4.54)
Weighted-average shares used in computing net loss per share attributable to Class A, Class B, and Class C stockholders, basic (in shares)	140,082,038	72,900,951	139,754,453	51,879,264
Weighted-average shares used in computing net loss per share attributable to Class A, Class B, and Class C stockholders, dilutive (in shares)	142,133,303	72,900,951	139,754,453	51,879,264