Net Loss per Share - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Numerator:
Net loss attributable to common stockholders, basic	$ (50,582)	$ (52,518)	$ (155,063)	$ (153,606)
Net loss attributable to common stockholders, diluted	$ (50,582)	$ (52,518)	$ (155,063)	$ (153,606)
Denominator:
Weighted-average common shares outstanding, diluted (in shares)	160,503,183	119,764,270	139,244,743	114,492,416
Weighted-average common shares outstanding, basic (in shares)	160,503,183	119,764,270	139,244,743	114,492,416
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.32)	$ (0.44)	$ (1.11)	$ (1.34)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.32)	$ (0.44)	$ (1.11)	$ (1.34)