Stockholders' Equity - Summary of Stock Option Activity (Detail) - Options to purchase common stock - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Outstanding Options
Beginning balance (in shares)	6,471,062
Granted (in shares)	0
Exercised (in shares)	(163,096)
Forfeited / canceled (in shares)	0
Ending balance (in shares)	6,307,966	6,471,062
Vested and expected to vest (in shares)	6,307,966
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 0.17
Granted (in dollars per share)	0
Exercised (in dollars per share)	0.14
Forfeited / canceled (in dollars per share)	0
Ending balance (in dollars per share)	$ 0.17	$ 0.17
Weighted Average Remaining Contractual Life (in years)
Weighted Average Remaining Contractual Life (in years)	7 years 10 days	7 years 3 months 14 days