Net Loss Per Share Attributable To Common Stockholders - Computation of EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Numerator:
Net loss attributable to common stockholders	$ (18,234)	$ (19,424)	$ (19,948)	$ (21,328)	$ (22,850)	$ (20,679)	$ (57,606)	$ (64,857)
Class A and Class B Common Stockholder
Numerator:
Net loss attributable to common stockholders	$ (18,234)			$ (21,328)			$ (57,606)	$ (64,857)
Denominator:
Weighted-average common shares used in computing net loss per share attributable to common stockholders, basic (in shares)	56,312,290			61,186,324			57,928,898	63,441,333
Weighted-average common shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	56,312,290			61,186,324			57,928,898	63,441,333
Net loss per share attributable to common shareholders, basic (in usd per share)	$ (0.32)			$ (0.35)			$ (0.99)	$ (1.02)
Net loss per share attributable to common shareholders, diluted (in usd per share)	$ (0.32)			$ (0.35)			$ (0.99)	$ (1.02)