Stockholders' Equity - Summary of Stock Option Activity (Detail) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted Average Remaining Contractual Life in Years	8 years
Weighted Average Remaining Contractual Life in Years, options exercisable at December 31, 2021	7 years 9 months 18 days
Weighted Average Remaining Contractual Life in Years, options unvested and expected to vest at December 31, 2021	8 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance | shares	460,700
Options granted | shares	124,700
Options exercised | shares	(72,200)
Options canceled/forfeited | shares	(13,200)
Options outstanding, ending balance | shares	500,000.0
Options exercisable at December 31, 2021 | shares	231,300
Options unvested and expected to vest at December 31, 2021 | shares	254,400
Weighted-average grant date fair value
Weighted-average grant date fair value, options beginning balance | $ / shares	$ 32.48
Weighted-average grant date fair value, options granted | $ / shares	59.40
Weighted-average grant date fair value, options exercised | $ / shares	30.72
Weighted-average grant date fair value, options canceled/forfeited | $ / shares	39.43
Weighted-average grant date fair value, options ending balance | $ / shares	39.26
Weighted-average grant date fair value, options exercisable at December 31, 2021 | $ / shares	35.83
Weighted-average grant date fair value, options unvested and expected to vest at December 31, 2021 | $ / shares	$ 42.02
Aggregate Intrinsic Value, options outstanding | $	$ 7.1
Aggregate Intrinsic Value, options exercisable at December 31, 2021 | $	3.9
Aggregate Intrinsic Value, options unvested and expected to vest at December 31, 2021 | $	$ 3.1