COMMITMENTS AND CONTINGENCIES (Details)
Sep. 30, 2014
Commitments and Contingencies [Line Items]  
Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions 12
Number of sites where we have completed or addressed removal of the source of soil contamination according to plans approved by KDHE 11
Number of sites where regulatory closure has been achieved 3
Percentage yield of high consequence pipeline areas 30.00%