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Organization and Operations - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Company incorporation date	Oct. 31, 2013
Accumulated deficit	$ (195,915)	$ (573,576)
Cash, cash equivalents and marketable securities	$ 2,379,100

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