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Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS
VALUATION AND QUALIFYING ACCOUNTS
 
The Company maintains an allowance for losses which is composed of a bad debt allowance and a revenue reserve. Provisions are charged against earnings either as an increase to expense or a reduction in revenues.

The following table summarizes activity in the Company’s allowance for the years ended December 31 (in thousands):
 
 
Balance at
Beginning
of Year
 
Additions
Charged to
Expense
 
Additions
Charged
Against
Revenues
 
Deductions
from
Reserve
 
Balance
at End
of Year
2015:
 
 
 
 
 
 
 
 
 
Allowance for doubtful accounts and returns and allowances
$
6,700

 
$
3,480

 
$
5,420

 
$
(8,700
)
 
$
6,900

2014:
 

 
 

 
 

 
 

 
 

Allowance for doubtful accounts and returns and allowances
$
7,000

 
$
2,950

 
$
3,240

 
$
(6,490
)
 
$
6,700

2013:
 

 
 

 
 

 
 

 
 

Allowance for doubtful accounts and returns and allowances
$
6,400

 
$
2,350

 
$
5,050

 
$
(6,800
)
 
$
7,000