Organization - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash, cash equivalents and restricted cash	$ 52,996	$ 76,054	$ 115,069
Accumulated deficit	(880,627)	$ (842,852)
Restricted cash related to the Company's debt agreement	$ 13,900
Common stock, shares authorized	420,000,000	350,000,000
Common stock, shares outstanding	240,410,761	216,127,443
Common Stock [Member]
Common stock, shares authorized	420,000,000
Common stock, shares outstanding	240,410,761
Common stock reserved for future issuance	33,330,964