Basis of Presentation and Summary of Significant Accounting Policies - Stock-Based Compensation (Detail)	12 Months Ended
	Dec. 31, 2021
Basis of Presentation and Summary of Significant Accounting Policies
Expected term, description	For stock options, given the insufficient historical data relating to stock option exercises, the Company applies the simplified approach in which the expected term of an award is presumed to be the mid-point between the vesting date and the expiration date of the award. For ESPP awards, the expected term is the time period from the grant date to the respective purchase dates included within each offering period.
Dividend yield	0.00%
Requisite service period	4 years
Forfeiture method	The Company accounts for forfeitures as they occur.
Performance Option | Chief Executive Officer
Basis of Presentation and Summary of Significant Accounting Policies
Dividend yield	0.00%
Derived service period	5 years