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Credit Losses (Tables)
 3 Months Ended
Mar. 31, 2020
Credit Loss [Abstract]  
Schedule Of Changes In Allowance For Credit Losses
Changes in our allowance for credit losses are as follows (in thousands):
Balance as of January 1, 2020
  $
 
 
6,878
  
Cumulative effect of change in accounting principle
   
1,600
  
Current period provision
   
1,298
  
Recoveries collected and other
   
204
  
Amounts written off
   
(951
 )
         
Balance as of March 31, 2020
  $
9,029