Equity Method Investments (Details 2) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Summarized Statement of Operations Information of Brand:
Net revenues		$ 782,415		$ 2,333,561
Gross profit		169,456		499,005
Net income attributable to Brand Energy & Infrastructure Services, Inc. and Subsidiaries		12,378		20,756
Equity income of unconsolidated entities, net	$ 0	3,205	$ 0	5,686
Infrastructure Transaction Strategic Venture
Summarized Statement of Operations Information of Brand:
Equity income of unconsolidated entities, net		$ 3,205		$ 5,686