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Common Stock - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Voting Rights	Each share of common stock entitles the holder to one vote on all matters submitted to a vote of the Company’s stockholders.
Dividends declared	$ 0	$ 0
Common Stock Restriction Period	4 years
Fair value of shares, vested	$ 9,619
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards, authorized for issuance	0
ESPP [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards, authorized for issuance	1,092,532

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Description of voting rights of common stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.

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