XML 40 R26.htm IDEA: XBRL DOCUMENT v3.10.0.1
Nature of Operations and Basis of Presentation (Details)
9 Months Ended
Sep. 30, 2018
a
mi
Organization and Nature of Operations  
Length of pipeline to supply gas | mi 137
Galveston Bay Leases  
Organization and Nature of Operations  
Area available for lease | a 994