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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Sep. 30, 2017
Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts
ATMOS ENERGY CORPORATION
Valuation and Qualifying Accounts
Three Years Ended September 30, 2017
 
 
 
 
Additions
 
 
 
 
 
 
Balance at
beginning
of period
 
Charged to
cost &
expenses
 
Charged to
other
accounts
 
Deductions
 
 
Balance
at end
of period
 
 
 
(In thousands)
 
 
 
 
 
2017
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
11,056

 
$
12,269

 
$
—

 
$
12,460

(1) 
 
$
10,865

2016
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
12,934

 
$
10,414

 
$
—

 
$
12,292

(1) 
 
$
11,056

2015
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
$
20,659

 
$
15,923

 
$
—

 
$
23,648

(1) 
 
$
12,934

 
(1) 
Uncollectible accounts written off.