Net Loss per Share - Schedule of Basic and Diluted Net Loss per Share Attributable to Common Stockholders (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share Basic [Line Items]
Net loss attributable to common stockholders	$ (25,092)	$ (18,695)	$ (50,420)	$ (35,595)
Weighted average shares of common stock outstanding, basic	112,859,461	112,298,982	112,735,101	100,850,878
Weighted average shares of common stock outstanding, diluted	112,859,461	112,298,982	112,735,101	100,850,878
Net loss per share attributable to common stockholders, basic	$ (0.22)	$ (0.17)	$ (0.45)	$ (0.35)
Net loss per share attributable to common stockholders, diluted	$ (0.22)	$ (0.17)	$ (0.45)	$ (0.35)
Common Stock [Member]
Earnings Per Share Basic [Line Items]
Weighted average shares of common stock outstanding, basic	112,859,461	110,140,653	112,735,101	98,692,549
Weighted average shares of common stock outstanding, diluted	112,859,461	110,140,653	112,735,101	98,692,549
Pre-Funded Warrants [Member]
Earnings Per Share Basic [Line Items]
Weighted average shares of common stock outstanding, basic		2,158,329		2,158,329
Weighted average shares of common stock outstanding, diluted		2,158,329		2,158,329