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Property and Equipment
 9 Months Ended
Sep. 30, 2024
Property, Plant and Equipment [Abstract]  
Property and Equipment
6.PROPERTY AND EQUIPMENT
Property and equipment are summarized as follows:
September 30, 2024December 31, 2023
Construction and transportation equipment$459,594 $405,242 
Buildings and improvements23,982 21,325 
Land3,054 3,054 
Office equipment4,111 4,023 
Total property and equipment490,741 433,644 
Less accumulated depreciation(220,209)(189,996)
Total property and equipment, net$270,532 $243,648 
Depreciation Expense—Depreciation expense is primarily included within cost of revenues and was $13,083 and $37,689 for the three and nine months ended September 30, 2024, respectively, and $11,121 and $31,320 for the three and nine months ended September 30, 2023, respectively.