Consolidated statements of operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue	$ 3,055,071	$ 2,802,574	$ 2,578,027
Costs and expenses:
Cost of revenue	688,760	678,597	529,320
Research and development	1,068,416	948,980	780,264
Sales and marketing	911,166	933,133	641,279
General and administrative	512,407	343,541	300,977
Total costs and expenses	3,180,749	2,904,251	2,251,840
Income (loss) from operations	(125,678)	(101,677)	326,187
Interest income (expense), net	105,439	30,235	3,075
Other income (expense), net	3,799	(14,502)	(8,291)
Income (loss) before provision for income taxes	(16,440)	(85,944)	320,971
Provision for income taxes	19,170	10,103	4,533
Net income (loss)	$ (35,610)	$ (96,047)	$ 316,438
Net income (loss) per share:
Basic (in dollars per share)	$ (0.05)	$ (0.14)	$ 0.49
Diluted (in dollars per share)	$ (0.05)	$ (0.14)	$ 0.46
Weighted-average shares used in computing net income (loss) per share:
Basic (in shares)	674,641	665,732	640,030
Diluted (in shares)	674,641	665,732	691,651