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Commitments and Contingencies (Detail)
Jul. 16, 2019
individual
May 23, 2019
individual
Apr. 04, 2019
individual
Jan. 02, 2019
individual
item
Jun. 27, 2018
individual
Jun. 21, 2018
lawsuit
Apr. 13, 2018
class
Jan. 25, 2018
individual
Jan. 31, 2021
plaintiff
Jan. 19, 2021
plaintiff
Dec. 31, 2020
USD ($)
plaintiff
Dec. 09, 2020
plaintiff
Oct. 14, 2020
plaintiff
Jun. 30, 2020
USD ($)
Feb. 07, 2020
lawsuit
Jun. 07, 2019
plaintiff
Dec. 10, 2018
lawsuit
May 08, 2018
plaintiff
Loss Contingencies [Line Items]                                    
Number of lawsuits | lawsuit                                 2  
Nicole Versetto [Member]                                    
Loss Contingencies [Line Items]                                    
Number of other individuals filed lawsuit | class             3                      
Loss contingency accrual | $                           $ 44,950,000        
Nicole Versetto [Member] | Prepaid Expenses and Other Current Assets                                    
Loss Contingencies [Line Items]                                    
Settlement fund | $                     $ 44,950,000     $ 44,950,000        
Carlson Case [Member]                                    
Loss Contingencies [Line Items]                                    
Number of other individuals filed lawsuit | individual       13 32     71                    
Number of groups plaintiffs motions to dismiss | item       3                            
Number of plaintiffs dismissed                 2             3   6
Number of plaintiffs, added                 12                 2
Number of Plaintiffs                               109    
Lawsuit In United States District Court for the Western District of Texas                                    
Loss Contingencies [Line Items]                                    
Number of plaintiffs dismissed                     107              
Number of plaintiffs, unsettled                     2   1          
Number of Plaintiffs                     109              
Number Of Plaintiffs, Agreed To Settle                     1              
Lawsuit In United States District Court for the Northern District of California                                    
Loss Contingencies [Line Items]                                    
Number of plaintiffs dismissed                     108              
Number of plaintiffs, unsettled                         3          
Number of Plaintiffs                     112              
Number Of Plaintiffs, Agreed To Settle                   1                
Number of plaintiffs, council moved to withdraw                       3            
Alvarez Case [Member]                                    
Loss Contingencies [Line Items]                                    
Number of other individuals filed lawsuit | individual 102                                  
Number of other individuals to whom notice has been sent | individual     105                              
Percentage of graduates obtained job in field of study     90.00%                              
Stoltmann Case [Member]                                    
Loss Contingencies [Line Items]                                    
Number of other individuals filed lawsuit | lawsuit           399                        
Number Of Individuals to File Second Amended Claim | individual   1                                
Complaint 2017 And 2018 Case [Member]                                    
Loss Contingencies [Line Items]                                    
Qui Tam False Claims Act Actions Filed | lawsuit                             2      
Subsequent Event [Member] | Lawsuit In United States District Court for the Northern District of California                                    
Loss Contingencies [Line Items]                                    
Number of plaintiffs, unsettled                   4