Stockholders' Equity - Summary of Option Activity (Detail) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($) $ / shares shares
Options Outstanding
Options outstanding at December 31, 2021| shares | shares	609,965
Granted | shares | shares	42,982
Exercised | shares | shares	(1,300)
Forfeited/expired/cancelled | shares	(2,000)
Options outstanding at September 30, 2022 | shares | shares	649,647
Options exercisable at September 30, 2022 | shares | shares	374,084
Vested and expected to vest at September 30, 2022 (1) | shares | shares	633,533	[1]
Weighted-Average Exercise Price Per Share
Options outstanding at December 31, 2021 | $ / shares	$ 71.74
Granted | $ / shares	181.03
Exercised | $ / shares	22.41
Forfeited/expired/cancelled | $ / shares	199.71
Options outstanding at September 30, 2022 | $ / shares	78.68
Options exercisable at September 30, 2022 | $ / shares	54.57
Vested and expected to vest at March 31, 2023 | $ / shares	$ 78.10	[1]
Weighted-Average Remaining Contractual Term (in years)
Vested and expected to vest at September 30, 2022	5 years 10 months 28 days	[1]
Aggregate Intrinsic Value
Vested and expected to vest at September 30, 2022 | $	$ 60,647	[1]

[1] Represents the number of vested options as of March 31, 2023 plus the number of unvested options expected to vest as of March 31, 2023 based on the unvested outstanding options at March 31, 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.