Organization - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Cash and cash equivalents	$ 37,807	$ 76,054
Restricted cash related to the Company's debt agreement	13,900
Accumulated deficit	$ 871,468	$ 842,852
Common stock, shares authorized	420,000,000	350,000,000
Common stock, shares outstanding	216,182,042	216,127,443
Common Stock [Member]
Common stock, shares outstanding	216,182,042
Common stock reserved for future issuance	33,545,557