Annual report pursuant to Section 13 and 15(d)

Leases - Additional information (Detail)

v3.20.4
Leases - Additional information (Detail)
Dec. 31, 2020
Dec. 31, 2019
Lessee, Lease, Description [Line Items]    
Remaining lease term 5 years  
Operating lease term 4 years 1 month 24 days 4 years 7 months 2 days
Weighted average discount rate 4.51% 4.77%
Minimum    
Lessee, Lease, Description [Line Items]    
Renewal term 1 year  
Maximum    
Lessee, Lease, Description [Line Items]    
Renewal term 9 years