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Concentration of Risk and Enterprise Wide Disclosures (Tables)
12 Months Ended
Dec. 31, 2019
Segment Reporting [Abstract]  
Schedule of Revenue by Major Customers by Reporting Segments
The following table shows contract revenues generated from customers that accounted for more than 10% of the Company’s consolidated revenues:
 
 
Years Ended December 31,
 
 
2019
 
2018
 
2017
 
 
Amount
 
%
 
Amount
 
%
 
Amount
 
%
Utah Department of Transportation (“UDOT”)
 
$
135,496

 
12.0
%
 
$
153,276

 
14.8
%
 
$
140,529

 
14.7
%
Texas Department of Transportation (“TXDOT”)
 
*

 
*

 
*

 
*

 
103,236

 
10.8
%

*Represents less than 10% of revenues