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Schedule II -- Valuation and Qualifying Accounts (Consolidated)
 12 Months Ended
Dec. 31, 2012
Valuation and Qualifying Accounts [Abstract]  
Schedule II -- Valuation and Qualifying Accounts (Consolidated)
Schedule II -- Valuation and Qualifying Accounts (Consolidated)
Years ended December 31, 2012, 2011, and 2010


(dollars in thousands)
 
Allowance for Doubtful Accounts
 
Allowance for Slow Moving and Obsolete Inventory
 
Valuation Allowance for Deferred Tax Asset
 
 
 
Balance at December 31, 2009
 
$
7,457

 
$
4,528

 
$
98,989

Charged to expense or other accounts
 
457

 
1,774

 
(26,662
)
Deductions
 
(2,396
)
 
(1,644
)
 
—

Balance at December 31, 2010
 
5,518

 
4,658

 
72,327

Charged to expense or other accounts
 
367

 
392

 
4,125

Deductions
 
(578
)
 
(242
)
 
—

Balance at December 31, 2011
 
5,307

 
4,808

 
76,452

Charged to expense or other accounts
 
661

 
349

 
3,218

Deductions
 
(265
)
 
(1,066
)
 
(2,041
)
Balance at December 31, 2012
 
$
5,703

 
$
4,091

 
$
77,629