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OTHER INCOME AND (INCOME DEDUCTIONS) - NET (Tables)
 12 Months Ended
Sep. 30, 2013
Other Nonoperating Income (Expense) [Abstract]  
Other Income and (Income Deductions) by Component
(Thousands)
2013
 
2012
 
2011
Interest income
$
1,088

 
$
1,309

 
$
1,136

Net investment gain
2,857

 
3,124

 
185

Other income
377

 
811

 
118

Other income deductions
(1,878
)
 
(1,972
)
 
(1,262
)
Other Income and (Income Deductions) – Net
$
2,444

 
$
3,272

 
$
177