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Valuation and Qualifying Accounts
 12 Months Ended
Sep. 30, 2013
Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS
(Thousands of dollars)
 
Balance at
beginning of
year
 
Charged (credited) to
costs and
expenses
 
Other
 
Balance at
end of
year
 
September 30, 2013
 
 
 
 
 
  
 
 
Reserves deducted from assets in the consolidated balance sheet:
 
 
 
 
 
  
 
 
Allowance for doubtful accounts
$
3,588

 
$
9,584

 
$
(7,653
)
(1) 
$
5,519

 
 
 
 
 
 
 
 
 
 
September 30, 2012
 
 
 
 
 
  
 
 
Reserves deducted from assets in the consolidated balance sheet:
 
 
 
 
 
  
 
 
Allowance for doubtful accounts
$
6,368

 
$
6,286

 
$
(9,066
)
(1) 
$
3,588

 
 
 
 
 
 
 
 
 
 
September 30, 2011
 
 
 
 
 
  
 
 
Reserves deducted from assets in the consolidated balance sheet:
 
 
 
 
 
  
 
 
Allowance for doubtful accounts
$
7,072

 
$
9,137

 
$
(9,841
)
(1) 
$
6,368

 
 
 
 
 
 
 
 
 
 
(1)
Uncollectible accounts written off, net of recoveries