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Due to Shareholders of Acquired Companies - Summary of Amounts Due to Shareholders of Acquired Companies (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Business Acquisition [Line Items]    
Total due to shareholders of acquired companies $ 15,998 $ 21,518
Less: Current portion of due to shareholders of acquired companies 8,126 11,523
Due to shareholders of acquired companies, less current portion 7,872 9,995
Universidade Anhembi Morumbi (UAM Brazil)    
Business Acquisition [Line Items]    
Total due to shareholders of acquired companies 15,814 20,179
IADE Group    
Business Acquisition [Line Items]    
Total due to shareholders of acquired companies 184 230
Faculdade Porto-Alegrense (FAPA)    
Business Acquisition [Line Items]    
Total due to shareholders of acquired companies $ 0 $ 1,109
Interest Rate % 3.00%  
Notes Payable, Related Party | Universidade Anhembi Morumbi (UAM Brazil) | Certificados de Depósitos Interbancários (CDI)    
Business Acquisition [Line Items]    
Basis spread on variable rate 2.00%