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BACKLOG (Details) - Jun. 30, 2015 - Schuff International, Inc [Member]
$ in Millions
USD ($)
Contract
Purchase Commitment, Excluding Long-term Commitment [Line Items]  
Backlog amount $ 329.3
Number of contracts attributable to backlog | Contract 5
Contracts or Purchase Orders [Member]  
Purchase Commitment, Excluding Long-term Commitment [Line Items]  
Backlog amount $ 251.0
Letters of Intent [Member]  
Purchase Commitment, Excluding Long-term Commitment [Line Items]  
Backlog amount 78.3
Five Contracts, Letters of Intent, Notices to Proceed or Purchase Orders [Member]  
Purchase Commitment, Excluding Long-term Commitment [Line Items]  
Backlog amount $ 143.9
Backlog percentage (in hundredths) 43.70%