Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Additional Information (Detail)

v3.21.2
Stock Based Compensation - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Unrecognized compensation cost related to unvested stock-based awards granted to employees under the equity incentive plans $ 45,600,000  
Unrecognized compensation cost related to unvested stock-based awards granted to employees under the equity incentive plans, period for recognition 2 years 9 months 10 days  
Total intrinsic value of stock options exercised $ 1,000,000.0 $ 2,000,000.0
Cash received from stock option exercises 726,000 $ 681,000
Tax benefit realized upon exercise of option $ 0