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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II –VALUATION AND QUALIFYING ACCOUNTS

 

(in thousands)

 

    Balance at
Beginning
of Period		     Charged to
Expense		     Accounts
Written
Off		     Balance at
End of
Period		  
                         
Year ended December 31, 2013                                
Deduction from asset accounts:                                
Allowance for doubtful accounts   $ 1,614       211       (111 )   $ 1,714  
                                 
Year ended December 31, 2014                                
Deduction from asset accounts:                                
Allowance for doubtful accounts   $ 1,714       243       (107 )   $ 1,850  
                                 
Year ended December 31, 2015                                
Deduction from asset accounts:                                
Allowance for doubtful accounts   $ 1,850       282       (268 )   $ 1,864