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Schedule II-Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2020
Schedule II-Valuation and Qualifying Accounts [Abstract]  
Schedule II-Valuation and Qualifying Accounts
Schedule II—Valuation and Qualifying Accounts

(in thousands)

Description
 
Balance at
Beginning of
Period
  
Charged to
Expense
  
Accounts
Written-off
  
Balance at
End of
Period
 
Allowance accounts for the year ended:
            
             
December 31, 2020
 
        
 
Student receivable allowance
 
$
20,367
  
$
26,887
  
$
(18,615
)
 
$
28,639
 
December 31, 2019
                
Student receivable allowance
 
$
16,993
  
$
20,847
  
$
(17,473
)
 
$
20,367