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Property and Equipment, Net
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net Property and Equipment, NetProperty and equipment consisted of the following (in thousands):
September 30,
2021
December 31, 2020
Computer hardware$153,781 $159,180 
Computer software244,649 250,585 
Furniture and equipment91,358 91,112 
Leasehold improvements163,201 164,807 
Property and equipment, cost652,989 665,684 
Accumulated depreciation(559,973)(555,867)
Property and equipment, net$93,016 $109,817