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Business Segments (Tables)
 9 Months Ended
Jul. 31, 2016
Segment Reporting [Abstract]  
Operations By Segment
Operations by segment for the three months and nine months ended July 31, 2016 and 2015 are presented below.
 
Regulated Utility
 
Regulated
Non-Utility
Activities
 
Unregulated
Non-Utility
Activities
 
Total
In thousands
2016
 
2015
 
2016
 
2015
 
2016
 
2015
 
2016
 
2015
Three Months
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Revenues from external customers
$
157,806

 
$
158,266

 
$
—

 
$
—

 
$
—

 
$
—

 
$
157,806

 
$
158,266

Margin
114,771

 
111,572

 
—

 
—

 
—

 
—

 
114,771

 
111,572

Operations and maintenance expenses
68,867

 
69,587

 
16

 
19

 
58

 
49

 
68,941

 
69,655

Income from equity method investments
—

 
—

 
1,229

 
3,894

 
3,009

 
1,907

 
4,238

 
5,801

Operating income (loss) before income taxes
316

 
(1,864
)
 
(121
)
 
(89
)
 
(76
)
 
(68
)
 
119

 
(2,021
)
Income (loss) before income taxes
(15,233
)
 
(18,904
)
 
1,108

 
3,805

 
2,932

 
1,839

 
(11,193
)
 
(13,260
)
Nine Months
 
 
 
 
 
 
 
 
 
 
 
 


 


Revenues from external customers
$
969,329

 
$
1,190,462

 
$
—

 
$
—

 
$
—

 
$
—

 
$
969,329

 
$
1,190,462

Margin
625,385

 
607,263

 
—

 
—

 
—

 
—

 
625,385

 
607,263

Operations and maintenance expenses
215,675

 
207,162

 
49

 
70

 
126

 
96

 
215,850

 
207,328

Income from equity method investments
—

 
—

 
9,495

 
11,242

 
18,530

 
18,666

 
28,025

 
29,908

Operating income (loss) before income taxes
275,587

 
271,697

 
(154
)
 
(140
)
 
(232
)
 
(203
)
 
275,201

 
271,354

Income before income taxes
225,601

 
218,414

 
9,341

 
11,102

 
18,299

 
18,464

 
253,241

 
247,980
Reconciliation of Operating Profit (Loss) from Segments to Consolidated
Reconciliations to the condensed consolidated statements of operations and comprehensive income for the three months and nine months ended July 31, 2016 and 2015 are presented below.
 
Three Months
 
Nine Months
In thousands
2016
 
2015
 
2016
 
2015
Operating Income (Loss):
 
 
 
 
 
 
 
Segment operating income (loss) before income taxes
$
119

 
$
(2,021
)
 
$
275,201

 
$
271,354

Utility income taxes
6,339

 
7,097

 
(87,660
)
 
(85,583
)
Regulated non-utility activities operating loss before income taxes
121

 
89

 
154

 
140

Unregulated non-utility activities operating loss before income taxes
76

 
68

 
232

 
203

Operating income
$
6,655


$
5,233

 
$
187,927

 
$
186,114

 
Net Income (Loss):
 
 
 
 
 
 
 
Income (loss) before income taxes for reportable segments
$
(11,193
)
 
$
(13,260
)
 
$
253,241

 
$
247,980

Income taxes
4,463

 
5,000

 
(98,749
)
 
(96,860
)
Total
$
(6,730
)
 
$
(8,260
)
 
$
154,492

 
$
151,120