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Due to Shareholders of Acquired Companies - Summary of Amounts Due to Shareholders of Acquired Companies (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018
Business Acquisition [Line Items] |  |  |
Total due to shareholders of acquired companies |  | $ 21,518 | $ 45,391
Less: Current portion of due to shareholders of acquired companies |  | 11,523 | 23,820
Due to shareholders of acquired companies, less current portion |  | 9,995 | 21,571
Universidade Anhembi Morumbi (UAM Brazil) |  |  |
Business Acquisition [Line Items] |  |  |
Total due to shareholders of acquired companies |  | 20,179 | 30,912
IADE Group |  |  |
Business Acquisition [Line Items] |  |  |
Total due to shareholders of acquired companies |  | $ 1,109 | 1,141
Interest Rate % |  | 3.00% |
Faculdade Porto-Alegrense (FAPA) |  |  |
Business Acquisition [Line Items] |  |  |
Total due to shareholders of acquired companies |  |  | 1,943
Repayments of Related Party Debt | $ 230 |  |
University of St. Augustine for Health Sciences, LLC (St. Augustine) |  |  |
Business Acquisition [Line Items] |  |  |
Total due to shareholders of acquired companies |  | $ 0 | $ 11,395
Interest Rate % |  | 7.00% |
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% |

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