XML 48 R28.htm IDEA: XBRL DOCUMENT v3.6.0.2
Subsequent Events (Notes)
12 Months Ended
Dec. 31, 2017
Subsequent Event [Member]  
Subsequent Event [Line Items]  
Subsequent Events [Text Block]
Subsequent Events
The Company closed the acquisition of Hetsco, Inc. on January 13, 2017. The Company acquired Hetsco, Inc. from Global Power Equipment Group, Inc. for approximately $22 million. Hetsco, Inc. provides emergency, specialty welding, and construction services to natural gas processing, petrochemical, and air gas separation industries and will be included in the E&C operating segment.