Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment, Net (Details)

v3.21.2
Property and Equipment, Net (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Cost:          
Property and equipment, gross $ 137,937   $ 137,937   $ 132,123
Less: accumulated depreciation and amortization (89,779)   (89,779)   (84,154)
Total property and equipment, net 48,158   48,158   47,969
Depreciation and amortization expense 4,998 $ 5,341 $ 15,887 $ 16,021  
Computer equipment and software          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     3 years    
Cost:          
Property and equipment, gross 72,415   $ 72,415   72,443
Leasehold improvements          
Cost:          
Property and equipment, gross 43,860   43,860   37,671
Office furniture and fixtures          
Cost:          
Property and equipment, gross 12,243   $ 12,243   11,249
Office furniture and fixtures | Minimum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     3 years    
Office furniture and fixtures | Maximum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     7 years    
Office equipment and other          
Cost:          
Property and equipment, gross 5,810   $ 5,810   7,151
Office equipment and other | Minimum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     3 years    
Office equipment and other | Maximum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     5 years    
Building and building improvements          
Cost:          
Property and equipment, gross 2,669   $ 2,669   2,669
Building and building improvements | Minimum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     7 years    
Building and building improvements | Maximum          
Property, Plant and Equipment [Line Items]          
Estimated Useful Life     39 years    
Land          
Cost:          
Property and equipment, gross $ 940   $ 940   $ 940