Goodwill

3 Months Ended

Mar. 31, 2018

Goodwill [Abstract]

Goodwill Disclosure [Text Block]

Goodwill

There were no changes in our goodwill during the three months ended March 31, 2018. Goodwill by segment is as follows for both March 31, 2018 and December 31, 2017 (in thousands):

Electric	$	243,558
Natural gas	114,028
Total	$	357,586