CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (183,949)	$ (193,381)	$ (260,309)
Other comprehensive income (loss):
Change in unrealized gain (loss) on investments, net of tax	13,880	(9,251)	(2,808)
Other comprehensive income (loss)	13,880	(9,251)	(2,808)
Comprehensive loss	$ (170,069)	$ (202,632)	$ (263,117)