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Higher Education Emergency Relief Fund under the CARES Act (Details)
student in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Jan. 14, 2021
USD ($)
May 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Sep. 30, 2020
USD ($)
student
Oct. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Unusual or Infrequent Item, or Both [Line Items]            
Amount of HEERF funds granted   $ 33,000        
Grants awarded       $ 16,500    
Number of students awarded grants | student       9    
Funds received to offset costs   $ 16,500        
Sanitization supplies, partitions, labor hours and other related expenses     $ 900 $ 15,100    
Institutional emergency grants to students       600    
Total funds spent       15,700    
CARES Act funds received for institutional costs (See Note 18)     880 $ 13,900 $ 1,800 $ 0
Amount available for higher education institution     22,700,000      
Amount aloocated for private and proprietary institution     681,000      
Subsequent Event            
Unusual or Infrequent Item, or Both [Line Items]            
HEERF funds received $ 16,800          
Educational services and facilities            
Unusual or Infrequent Item, or Both [Line Items]            
Sanitization supplies, partitions, labor hours and other related expenses     300      
Selling, general and administrative            
Unusual or Infrequent Item, or Both [Line Items]            
Sanitization supplies, partitions, labor hours and other related expenses     $ 600