Subsequent Events - Additional Information (Detail) - shares		12 Months Ended
	Jan. 01, 2022	Dec. 31, 2021	Dec. 31, 2020
2014 Equity Incentive Plan
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized		786,547	389,650
2014 Employee Stock Purchase Plan
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized		2,941	2,941
Subsequent Event | 2014 Equity Incentive Plan
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized	1,148,213
Subsequent Event | 2014 Employee Stock Purchase Plan
Subsequent Event [Line Items]
Share-based compensation arrangement by share-based payment award, number of additional shares authorized	2,941