Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (4,884)	$ (25,238)	$ 32,212	$ (67,604)
Other comprehensive loss:
Unrealized loss on available-for-sale debt securities		(1)		(4)
Total comprehensive income (loss)	$ (4,884)	$ (25,239)	$ 32,212	$ (67,608)