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Property and Equipment (Tables)
9 Months Ended
Sep. 30, 2021
Property, Plant and Equipment [Abstract]  
Summary of Property and Equipment
Property and equipment are summarized as follows:
September 30,
2021
December 31,
2020
Construction and transportation equipment$256,444 $231,799 
Buildings and improvements23,110 21,025 
Land3,891 3,891 
Office equipment3,147 3,012 
Total property and equipment286,592 259,727 
Less accumulated depreciation(138,148)(133,059)
Total property and equipment, net$148,444 $126,668