Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Narrative (Detail)

v3.21.1
Stock Based Compensation - Narrative (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock compensation expense (gain) $ 2,700 $ 2,200
Unrecognized stock-based compensation cost $ 9,000  
Unrecognized share-based compensation expense, weighted-average recognition period (in years) 2 years 2 months 12 days  
Common stock issuance ESPP Plan $ 1,024 $ 796
Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized stock-based compensation cost $ 7,500  
Unrecognized share-based compensation expense, weighted-average recognition period (in years) 1 year 8 months 4 days  
Employee Stock Purchase Plan    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Employee stock purchase plan, discount rate (as a percent) 15.00%  
Common stock issuance ESPP Plan (in shares) 23,917 34,330
Common stock issuance ESPP Plan $ 200 $ 200