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Property and Equipment, Net
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Property and Equipment, Net Property and Equipment, Net
Property and equipment, net, which includes assets under finance leases, consists of the following:
December 31,
20232022
(in thousands)
Computer equipment$179,002 $173,832 
Computer software26,133 25,808 
Leasehold improvements20,924 21,009 
Scanner appliances18,369 15,696 
Furniture, fixtures and equipment6,699 6,524 
Total property and equipment251,127 242,869 
Less: accumulated depreciation and amortization(218,528)(195,441)
Property and equipment, net$32,599 $47,428 
As of December 31, 2023 and 2022, physical scanner appliances and other computer equipment that are or will be subject to leases by customers had a net carrying value of $10.1 million and $6.7 million, respectively, including assets that had not been placed in service of $6.4 million and $4.0 million, respectively.
Depreciation and amortization expenses relating to property and equipment were $23.9 million, $28.2 million and $28.5 million for the years ended December 31, 2023, 2022 and 2021, respectively, which were mainly recorded in cost of revenues in the consolidated statements of operations.