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Valuation and Qualifying Accounts
 12 Months Ended
Sep. 30, 2014
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
VALUATION AND QUALIFYING ACCOUNTS
YEARS ENDED SEPTEMBER 30, 2014, 2013 and 2012

(Thousands)
 
ADDITIONS
 
 
CLASSIFICATION
BEGINNING
BALANCE
CHARGED TO
EXPENSE
OTHER (1)
ENDING BALANCE
2014
 
 
 
 
Allowance for doubtful accounts
$
5,330

2,504

(2,477
)
$
5,357

2013
 
 
 
 
Regulatory asset
$
71

(71
)
—

$
—

Allowance for doubtful accounts
$
4,797

2,627

(2,094
)
$
5,330

2012
 
 
 
 
Regulatory asset
$
141

(70
)
—

$
71

Allowance for doubtful accounts
$
4,612

3,932

(3,747
)
$
4,797

(1)
Uncollectible accounts written off, less recoveries and adjustments.