Stockholders' Equity - Summary of Option Activity (Detail) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($) $ / shares shares
Options Outstanding
Options outstanding at December 31, 2022 | shares	609,965
Granted | shares | shares	55,545
Exercised | shares | shares	(4,650)
Forfeited/expired/cancelled | shares	(2,000)
Options outstanding at June 30, 2023 | shares | shares	658,860
Options exercisable at June 30, 2023 | shares | shares	387,604
Vested and expected to vest at June 30, 2023 | shares	644,427	[1]
Weighted-Average Exercise Price Per Share
Options outstanding at December 31, 2022 | $ / shares	$ 71.74
Granted | $ / shares	175.75
Exercised | $ / shares	13.3
Forfeited/expired/cancelled | $ / shares	199.71
Options outstanding at June 30, 2023 | $ / shares	80.53
Options exercisable at June 30, 2023 | $ / shares	58.94
Vested and expected to vest at June 30, 2023 | $ / shares	$ 80.08	[1]
Weighted-Average Remaining Contractual Term (in years)
Vested and expected to vest at June 30, 2023	5 years 9 months 7 days	[1]
Aggregate Intrinsic Value
Vested and expected to vest at September 30, 2022 | $	$ 47,205	[1]

[1] Represents the number of vested options as of June 30, 2023 plus the number of unvested options expected to vest as of June 30, 2023 based on the unvested outstanding options at June 30, 2023 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.