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Receivables and Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Dec. 31, 2012
Receivables and Allowance for Doubtful Accounts (Tables) [Abstract]  
Receivables
Receivables consist of the following:
 
 
December 31,
 
 
2012
 
2011
 
 
(In thousands)
Installment sales receivable
 
$
46,753

 
$
46,418

Trade and notes receivables
 
8,986

 
9,903

Total
 
55,739

 
56,321

Less allowance for doubtful accounts
 
(6,917
)
 
(8,100
)
Net receivables
 
$
48,822

 
$
48,221
Changes in Allowance for Doubtful Accounts
The allowance for doubtful accounts related to installment sales