Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2015
Accounting Policies [Abstract]  
Schedule of Property Plant and Equipment
Depreciation, including amortization of capital leases, is provided on the straight-line method using estimated lives as follows:
 
Construction equipment
  
3-20 years
Furniture and equipment
  
3-12 years
Buildings
  
20 years
Transportation equipment
  
3-17 years
Marine equipment
  
10 years