CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Revenue	$ 562,027	$ 430,082	$ 1,553,430	$ 1,209,680
Cost of revenue	146,316	95,967	390,569	270,016
Gross profit	415,711	334,115	1,162,861	939,664
Operating expenses:
Sales and marketing	236,309	185,221	669,679	553,824
Research and development	120,956	110,911	370,602	301,161
General and administrative	95,906	68,777	280,551	204,721
Total operating expenses	453,171	364,909	1,320,832	1,059,706
Loss from operations	(37,460)	(30,794)	(157,971)	(120,042)
Non-operating income (expense):
Interest income	42,529	22,471	89,334	65,438
Interest expense	(2,912)	(1,433)	(5,879)	(3,751)
Other income (expense), net	(307)	(3,066)	(7,682)	(1,673)
Total non-operating income, net	39,310	17,972	75,773	60,014
Income (loss) before income taxes	1,850	(12,822)	(82,198)	(60,028)
Provision for income taxes	3,140	2,509	7,992	5,924
Net loss	$ (1,290)	$ (15,331)	$ (90,190)	$ (65,952)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ 0.00	$ (0.04)	$ (0.26)	$ (0.19)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ 0.00	$ (0.04)	$ (0.26)	$ (0.19)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	349,312	342,356	347,519	340,539
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	349,312	342,356	347,519	340,539