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Receivables and Allowance for Doubtful Accounts Receivables and Allowance for Doubtful Accounts (Tables)
 12 Months Ended
Dec. 31, 2018
Receivables and Allowance for Doubtful Accounts [Abstract]  
Receivables [Table Text Block]
Receivables consist of the following:
 
December 31,
(In thousands)
2018
 
2017
Installment sales receivable
$
54,746

 
$
55,516

Trade and notes receivables
19,782

 
18,474

Total receivables
74,528

 
73,990

Less allowance for doubtful accounts
(4,883
)
 
(4,167
)
Total receivables, net of allowance for doubtful accounts
$
69,645

 
$
69,823
Changes in allowance for doubtful accounts [Table Text Block]
Changes in our allowance for doubtful accounts are as follows: 
 
Year Ended December 31,
(In thousands)
2018
 
2017
 
2016
Beginning allowance for doubtful accounts
$
4,167

 
$
3,593

 
$
3,614

Bad debt expense
14,610

 
15,702

 
15,449

Accounts written off
(14,475
)
 
(15,791
)
 
(16,095
)
Recoveries
581

 
663

 
625

 Ending allowance for doubtful accounts
$
4,883

 
$
4,167

 
$
3,593