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Organization and Significant Accounting Policies (Tables)
 12 Months Ended
Sep. 30, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Accounts Receivable Allowance for Doubtful Accounts
The following describes activity in the accounts receivable allowance for doubtful accounts for the years ended September 30, 2013, 2012 and 2011.

Description
Balance at
Beginning
of Year
 
Adjustments to
Costs and
Expenses(1)
 
Deductions(2)
 
Balance
at End
of Year
 
(in thousands)
Accounts receivable—Allowance for doubtful accounts:
 
 
 
 
 
 
 
2011
$
154

 
$
362

 
$
(20
)
 
$
496

2012
$
496

 
$
(2
)
 
$
14

 
$
508

2013
$
508

 
$
19

 
$
(155
)
 
$
372

________________________
(1)
Includes increases/(decreases) charged or credited to costs and expenses.
(2)
Uncollectible accounts written off, net of recoveries.