Quarterly report pursuant to Section 13 or 15(d)

Leases - Additional Information (Detail)

v3.21.2
Leases - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Sublease income $ 100   $ 100  
Impairment loss 1,696 $ 0 1,696 $ 199,364
Sublease [Member]        
Impairment loss 1,700 0 1,700 0
Selling, General and Administrative Expenses, and Depreciation and Amortization Expenses [Member]        
Operating lease expense $ 2,000 $ 2,100 $ 4,400 $ 4,100
Minimum [Member]        
Sublease lease term     1 year  
Maximum [Member]        
Sublease lease term     15 years