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Fixed Assets, Net (Tables)
6 Months Ended
Jun. 30, 2022
Property, Plant and Equipment [Abstract]  
Components of Fixed Assets, Net
Fixed assets, net consisted of the following (in thousands):
June 30, 2022December 31, 2021
Computer and communications equipment$97,638 $96,472 
Software, including software development costs298,872 280,540 
Leasehold improvements and other fixed assets99,695 105,362 
496,205 482,374 
Less: accumulated depreciation and amortization(314,263)(292,262)
Fixed assets, net$181,942 $190,112