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Receivables and Allowance for Doubtful Accounts Receivables and Allowance for Doubtful Accounts (Tables)
 9 Months Ended
Sep. 30, 2018
Receivables and Allowance for Doubtful Accounts [Abstract]  
Receivables [Table Text Block]
Receivables consist of the following:
(In thousands)
September 30, 2018
 
December 31, 2017
Installment sales receivable
$
51,477

 
$
55,516

Trade and notes receivables
17,967

 
18,474

Total receivables
69,444

 
73,990

Less allowance for doubtful accounts
(4,247
)
 
(4,167
)
Total receivables, net of allowance for doubtful accounts
$
65,197

 
$
69,823
Changes in allowance for doubtful accounts [Table Text Block]
Changes in our allowance for doubtful accounts are as follows: 
(In thousands)
September 30, 2018
 
December 31, 2017
Beginning allowance for doubtful accounts
$
4,167

 
$
3,593

Bad debt expense
10,372

 
15,702

Accounts written off
(10,740
)
 
(15,791
)
Recoveries
448

 
663

 Ending allowance for doubtful accounts
$
4,247

 
$
4,167