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Segment Information (Tables)
 6 Months Ended
Jun. 30, 2018
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information by Segment
The following table presents financial information about our reportable segments:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
 
 
2018
 
2017
 
2018
 
2017
(in thousands)
 
 
 
 
 
 
 
 
Operating Revenues, Unaffiliated Customers
 
 
 
 
 
 
 
 
Regulated Energy segment
 
$
67,731

 
$
68,815

 
$
173,685

 
$
165,261

Unregulated Energy segment and other businesses
 
68,933

 
56,269

 
202,335

 
144,983

Total operating revenues, unaffiliated customers
 
$
136,664

 
$
125,084

 
$
376,020

 
$
310,244

Intersegment Revenues (1)
 
 
 
 
 
 
 
 
Regulated Energy segment
 
$
2,773

 
$
2,181

 
$
6,212

 
$
3,389

Unregulated Energy segment
 
7,412

 
6,780

 
19,377

 
10,791

Other businesses
 
194

 
159

 
387

 
387

Total intersegment revenues
 
$
10,379

 
$
9,120

 
$
25,976

 
$
14,567

Operating Income
 
 
 
 
 
 
 
 
Regulated Energy segment
 
$
14,304

 
$
14,086

 
$
41,015

 
$
37,481

Unregulated Energy segment
 
490

 
2

 
14,174

 
11,577

Other businesses and eliminations
 
(1,546
)
 
(27
)
 
(1,535
)
 
102

Total operating income
 
13,248

 
14,061

 
53,654

 
49,160

Other expense, net
 
(262
)
 
(1,002
)
 
(194
)
 
(1,703
)
Interest charges
 
3,881

 
3,073

 
7,545

 
5,811

Income before Income Taxes
 
9,105

 
9,986

 
45,915


41,646

Income taxes
 
2,718

 
3,940

 
12,674

 
16,456

Net Income
 
$
6,387

 
$
6,046

 
$
33,241


$
25,190

 
(1) 
All significant intersegment revenues are billed at market rates and have been eliminated from consolidated operating revenues.
(in thousands)
 
June 30, 2018
 
December 31, 2017
Identifiable Assets
 
 
 
 
Regulated Energy segment
 
$
1,199,672

 
$
1,121,673

Unregulated Energy segment
 
227,191

 
259,041

Other businesses and eliminations
 
36,078

 
34,220

Total identifiable assets
 
$
1,462,941

 
$
1,414,934