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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 consists of the following (in thousands):
December 31,
20232022
Machinery and equipment
$17,216 $11,742 
Leasehold improvements, furniture, and computer hardware
47,810 44,547 
Vehicles
157,486 94,821 
Computer software74,636 53,314 
Total property and equipment
297,148 204,424 
Less: Accumulated depreciation and amortization
(148,009)(136,985)
Total property and equipment, net$149,139 $67,439 
Depreciation and amortization expense was $31.9 million, $27.2 million and $23.0 million for the years ended December 31, 2023, 2022 and 2021, respectively.