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Receivables and Allowance for Doubtful Accounts Receivables and Allowance for Doubtful Accounts (Tables)
 3 Months Ended
Mar. 31, 2018
Receivables and Allowance for Doubtful Accounts [Abstract]  
Receivables [Table Text Block]
Receivables consist of the following:
(In thousands)
March 31, 2018
 
December 31, 2017
Installment sales receivable
$
52,615

 
$
55,516

Trade and notes receivables
16,045

 
18,474

Total receivables
68,660

 
73,990

Less allowance for doubtful accounts
(3,837
)
 
(4,167
)
Total receivables, net of allowance for doubtful accounts
$
64,823

 
$
69,823
Changes in allowance for doubtful accounts [Table Text Block]
Changes in our allowance for doubtful accounts are as follows: 
(In thousands)
March 31, 2018
 
December 31, 2017
Beginning allowance for doubtful accounts
$
4,167

 
$
3,593

Bad debt expense
3,437

 
15,702

Accounts written off
(3,958
)
 
(15,791
)
Recoveries
191

 
663

 Ending allowance for doubtful accounts
$
3,837

 
$
4,167