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Property and Equipment, net
 12 Months Ended
Dec. 31, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment, net Property and Equipment, net
(in thousands)December 31,
2020		December 31,
2021
Furniture and fixtures$3,925 $3,636 
Computers and equipment34,895 37,767 
Leasehold improvements10,928 7,347 
49,748 48,750 
Less: Accumulated depreciation(35,618)(37,626)
Total property and equipment, net$14,130 $11,124 
During the years ended December 31, 2019, 2020 and 2021, depreciation expense on property and equipment was $8.6 million, $7.1 million and $4.5 million, respectively. Write down of abandoned property and equipment no longer in use was $0.3 million, $1.1 million and $2.9 million for the years ended December 31, 2019, 2020 and 2021, respectively.