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Business and Geographic Segment Information - Additional Information (Details)
3 Months Ended 5 Months Ended 7 Months Ended
Mar. 31, 2018
campus
state
licensed_institution
segment
educational_institution
Dec. 31, 2017
segment
Jul. 31, 2017
segment
Segment Reporting Information [Line Items]      
Number of operating segments (segment) | segment 6 6 3
Brazil      
Segment Reporting Information [Line Items]      
Number of students attending post secondary education In a private educational institutions, percent 75.00%    
Number of postsecondary educational institutions (educational institution) | educational_institution 13    
Number of states in which entity operates (state) | state 8    
Mexico      
Segment Reporting Information [Line Items]      
Number of postsecondary educational institutions (educational institution) | educational_institution 2    
Number of campuses of postsecondary educational institutions (campus) | campus 40    
Saudi Arabia      
Segment Reporting Information [Line Items]      
Number of licensed institutions managed through joint venture arrangements (licensed institution) | licensed_institution 9    
China      
Segment Reporting Information [Line Items]      
Number of licensed institutions managed through joint venture arrangements (licensed institution) | licensed_institution 1    
Chile      
Segment Reporting Information [Line Items]      
Number of students attending post secondary education In a private educational institutions, percent 80.00%