XML 32 R21.htm IDEA: XBRL DOCUMENT v3.5.0.2
Operating Segments (Tables)
 9 Months Ended
Sep. 30, 2016
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
The following table presents segment information pertaining to Questar Gas' operations:

 
Questar Gas
 
Corporate and Other
 
Consolidated Total
 
(in millions)
Three Months Ended September 30, 2016
 
 
 
 

Operating revenue
$
87.9

 
$
—

 
$
87.9

Net loss
(10.0
)
 
(7.7
)
 
(17.7
)
Three Months Ended September 30, 2015
 
 
 
 
 
Operating revenue
$
89.3

 
$
—

 
$
89.3

Net loss
(8.8
)
 
—

 
(8.8
)
Nine Months Ended September 30, 2016
 
 
 
 
 
Operating revenue
$
624.0

 
$
—

 
$
624.0

Net income (loss)
36.0

 
(7.7
)
 
28.3

Nine Months Ended September 30, 2015
 
 
 
 
 
Operating revenue
$
605.8

 
$
—

 
$
605.8

Net income
32.2

 
—

 
32.2