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Schedule II - Valuation and Qualifying Accounts Schedule II Valuation and Qualifying Accounts (Notes)
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]  
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Schedule II -Valuation and Qualifying Accounts


The roll forward of valuation accounts were as follows:
 
(Dollars in thousands)
Description
Balance at Beginning of Period
 
Charged to Costs and Expenses
 
Deductions
 
Balance at End of Period
Allowance for doubtful accounts:
 
 
 
 
 
 
 
Year ended December 31, 2015
$
733

 
$
353

 
$
(543
)
(1) 
$
543

Year ended December 31, 2014
828

 
715

 
(810
)
(1) 
733

Year ended December 31, 2013
1,637

 
126

 
(935
)
(1) 
828

 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets:
 
 
 
 
 
 
 
Year ended December 31, 2015
$
36,675

 
$
(159
)
 
$
—

 
$
36,516

Year ended December 31, 2014
35,834

 
841

 
—

 
36,675

Year ended December 31, 2013
34,278

 
1,556

 
—

 
35,834


(1)
Uncollected receivables written off, net of recoveries and translation adjustments.