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SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS (Notes)
12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts
SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS

For the years ended December 31, 2015, 2014 and 2013:

 
 
 
 
Additions
 
 
 
 
Balance at
 
 
 
Charged to
 
 
 
 
 
 
Beginning of
 
Charged to
 
Other Accounts
 
Deductions
 
Balance at
(in thousands)
 
Period
 
Expenses
 
Note (a)(b)
 
Note (c)(d)
 
End of Period
 
 
 
 
 
 
 
 
 
 
 
Deductions from asset accounts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Year 2015
 
$
22,675

 
$
5,514

 
$
(4
)
 
$
9,729

 
$
18,456

Year 2014
 
5,631

 
16,257

 
1,399

 
612

 
22,675

Year 2013
 
3,274

 
2,549

 

 
192

 
5,631

 
 
 
 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Year 2015
 
$
3,115

 
$
674

 
$

 
$
231

 
$
3,558

Year 2014
 
3,189

 

 

 
74

 
3,115

Year 2013
 
2,413

 

 
776

 

 
3,189

______________________________________

(a) Allowance for doubtful accounts primarily includes amounts previously written off which were credited directly to this account when recovered.
(b)Valuation allowance for deferred tax assets includes current year increase to valuation allowance charged to equity and reclassifications from other balance sheet accounts.
(c) Amounts written off as uncollectible or transferred to other accounts or utilized.
(d) Reductions to valuation allowances related to deferred tax assets.