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Accrued Restructuring (Tables)
 9 Months Ended
Sep. 30, 2020
Restructuring and Related Activities [Abstract]  
Schedule Of Restructuring And Related Costs
The following table summarizes the accrued restructuring liabilities and utilization by cost type associated with the restructuring activities during the three and nine months ended September 30, 2020 (in thousands):
 
    
Termination
Benefits
     
Contract
Termination
Costs
     
Total
  
Balances as of December 31, 2019
    $ 2,780      $ 413      $ 3,193  
Restructuring charges
      23        —          23  
Reductions for cash payments
      (1,499 )       —          (1,499 ) 
  
 
 
     
 
 
     
 
 
  
Balances as of March 31, 2020
      1,304        413        1,717  
Restructuring charges
      (377 )       —          (377 ) 
Reductions for cash payments
      (461 )       —          (461 ) 
  
 
 
     
 
 
     
 
 
  
Balances as of June 30, 2020
      466        413        879  
Restructuring charges
      (174 )      
(41
3
)
      (587 ) 
Reductions for cash payments
      (199 )       —          (199 ) 
  
 
 
     
 
 
     
 
 
  
Balances as of September 30, 2020
    $ 93      $ —      $ 93