Annual report pursuant to Section 13 and 15(d)

CONTINGENCIES AND COMMITMENTS (Details)

v3.8.0.1
CONTINGENCIES AND COMMITMENTS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Loss Contingencies [Line Items]    
Loss related to cost overruns and re-work $ 22,500 $ 34,500
Estimated liquidated damages $ 233  
Maximum    
Loss Contingencies [Line Items]    
Estimated liquidated damages   $ 11,200