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Schedule II - Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Valuation and Qualifying Accounts
Schedule II — Valuation and Qualifying Accounts
For the Years Ended December 31, 2017, 2016 and 2015
(amounts in thousands)
 
 
Balance
Beginning of
Year
 
Charged to
Costs and
Expenses
 
Write-offs,
Net of
Recoveries and
Actual Returns
 
Balance at
End of Year
2017
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
582

 
$
1,143

 
$
(277
)
 
$
1,448

Allowance for returns
 
804

 
4,171

 
(4,069
)
 
906

Total
 
$
1,386

 
$
5,314

 
$
(4,346
)
 
$
2,354

2016
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
1,644

 
$
(136
)
 
$
(926
)
 
$
582

Allowance for returns
 
1,024

 
4,714

 
(4,934
)
 
804

Total
 
$
2,668

 
$
4,578

 
$
(5,860
)
 
$
1,386

2015
 
 
 
 
 
 
 
 
Allowance for doubtful accounts
 
$
1,821

 
$
1,764

 
$
(1,941
)
 
$
1,644

Allowance for returns
 
935

 
5,501

 
(5,412
)
 
1,024

Total
 
$
2,756

 
$
7,265

 
$
(7,353
)
 
$
2,668