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Schedule II - Valuation and Qualifying Accounts Schedule II Valuation and qualifying accounts (Notes)
 12 Months Ended
Dec. 31, 2013
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, 2013
$
1,637

 
$
126

 
$
(935
)
(1)
$
828

Year ended December 31, 2012
1,865

 
1,582

 
(1,810
)
(1)
1,637

Year ended December 31, 2011
1,034

 
1,500

 
(669
)
(1)
1,865

 
 
 
 
 
 
 
 
Allowance for excess and obsolete inventory:
 
 
 
 
 
 
 
Year ended December 31, 2013
$
7,656

 
$
1,903

 
$
(4,231
)
(2)
$
5,328

Year ended December 31, 2012
4,390

 
3,989

 
(723
)
(2)
7,656

Year ended December 31, 2011
4,084

 
1,046

 
(740
)
(2)
4,390

 
 
 
 
 
 
 
 
Valuation allowance for deferred tax assets:
 
 
 
 
 
 
 
Year ended December 31, 2013
$
34,278

 
$
1,556

 
$
—

 
$
35,834

Year ended December 31, 2012
938

 
33,340

 
—

 
34,278

Year ended December 31, 2011
875

 
63

 
—

 
938


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

(2)
Disposal of excess and obsolete inventory and translation adjustment.