CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue	$ 148,709	$ 132,371	$ 293,183	$ 265,891
Cost of revenue	67,593	59,470	135,269	119,756
Gross profit	81,116	72,901	157,914	146,135
Operating expenses:
Research and development	42,221	35,106	79,650	73,354
Sales and marketing	51,100	52,959	100,413	102,566
General and administrative	24,323	28,433	52,558	60,072
Impairment expense	415	3,137	415	3,137
Total operating expenses	118,059	119,635	233,036	239,129
Loss from operations	(36,943)	(46,734)	(75,122)	(92,994)
Interest income	3,084	3,937	6,059	7,785
Interest expense	(3,164)	(464)	(6,337)	(1,043)
Other income (expense), net	39	193	(41)	104
Loss before income tax expense	(36,984)	(43,068)	(75,441)	(86,148)
Income tax expense	557	661	1,248	1,008
Net loss	$ (37,541)	$ (43,729)	$ (76,689)	$ (87,156)
Net loss per share attributable to common stockholders, basic (in US dollar per share)	$ (0.26)	$ (0.32)	$ (0.53)	$ (0.64)
Net loss per share attributable to common stockholders, diluted (in US dollar per share)	$ (0.26)	$ (0.32)	$ (0.53)	$ (0.64)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	145,780	137,444	144,539	136,015
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	145,780	137,444	144,539	136,015