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Equity Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Jan. 01, 2025	Dec. 31, 2024	Jan. 01, 2024	Jul. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant-date fair values of options granted		$ 2.71
Aggregate intrinsic value of options exercised	$ 100
Unrecognized stock-based compensation of unvested options	$ 3,900
Weighted-average period expected to recognize	1 year 1 month 6 days
Dividend yield		0.00%
Common stock reserved for future issuance	18,986,110			16,368,584
Description of Transaction of Future issuance	lesser of (i) 5% of the aggregate number of shares of common stock outstanding on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Board, subject to certain limitations.
Number of Shares, Grants	0
Weighted-Average Exercise Price, Granted	$ 0
Stock based compensation	$ 1,600	$ 1,900
Share of common stock purchased	4,243	4,506
Restricted Stock Units RSU
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized stock-based compensation of unvested options	$ 22,500
Weighted-average period expected to recognize	2 years 9 months 18 days
Stock based compensation	$ 2,500	$ 2,300
2021 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock available for issuance	6,486,400			5,931,302
Common stock reserved for future issuance	5,200,000		2,546,899		2,456,568
2021 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Collected withholdings under plan	$ 400
Dividend yield	0.00%	0.00%
Common stock reserved for future issuance	2,140,455		509,379	1,631,076	491,313	850,000
Stock based compensation	$ 100	$ 100