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Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Allowance for Doubtful Accounts The following table sets forth our allowance for doubtful accounts (in thousands):
January 1, 2017
  $
3,397
 
Charged to costs and expenses
   
2,834
 
Charged to other accounts (1)
   
699
 
Deductions (2)
   
(2,125
 )
 
        
December 31, 2017
  $
4,805
 
 
        
Charged to costs and expenses
   
2,630
 
Charged to other accounts (1)
   
675
 
Deductions (2)
   
(3,025
 )
 
        
December 31, 2018
  $
5,085
 
 
        
Charged to costs and expenses
   
4,312
  
Charged to other accounts (1)
   
1,269
  
Deductions (2)
   
(3,788
 ) 
 
        
December 31, 2019
  $
6,878
 
         
(1) Recovery of receivables previously written off as bad debt and other.
(2)
Write-off
of uncollectible accounts receivable.