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Summary Of Significant Accounting Policies (Tables)
3 Months Ended
Jan. 31, 2014
Summary Of Significant Accounting Policies [Abstract]  
Schedule of Regulatory Assets [Table Text Block]
  January 31,  October 31,
In thousands  2014  2013
      
Regulatory Assets:     
Current:     
Unamortized debt expense$ 1,384 $ 1,274
Amounts due from customers  13,144   66,321
Environmental costs  1,647   1,480
Deferred operations and maintenance expenses  916   739
Deferred pipeline integrity expenses  3,469   3,149
Deferred pension and other retirement benefit costs  2,769   2,768
Robeson liquefied natural gas (LNG) development costs  382   382
Other  738   1,091
Total current  24,449   77,204
      
Noncurrent:     
Unamortized debt expense  14,143   14,149
Environmental costs  7,557   7,936
Deferred operations and maintenance expenses  5,283   5,637
Deferred pipeline integrity expenses  17,373   16,300
Deferred pension and other retirement benefit costs  20,867   17,968
Amounts not yet recognized as a component of pension     
and other retirement benefit costs  79,243   80,604
Regulatory cost of removal asset  23,382   22,974
Robeson LNG development costs  1,330   1,426
Other  2,008   2,108
Total noncurrent  171,186   169,102
Total$ 195,635 $ 246,306
Schedule of Regulatory Liabilities [Table Text Block]
Regulatory Liabilities:     
Current:     
Amounts due to customers$ 31,312 $ -
      
Noncurrent:     
Regulatory cost of removal obligations  497,249   493,111
Deferred income taxes  48,235   48,647
Amounts not yet recognized as a component of pension     
and other retirement benefit costs  135   139
Total noncurrent  545,619   541,897
Total$ 576,931 $ 541,897