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Discontinued Operations and Assets Held for Sale (Additional Information) (Detail) $ in Thousands, R$ in Millions |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 24, 2020 USD ($) | Dec. 11, 2018 USD ($) | Dec. 11, 2018 USD ($) | Sep. 30, 2020 | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Apr. 24, 2020 BRL (R$) | Sep. 30, 2019 USD ($)
Cash balance |  |  |  |  |  |  |  | $ 96,902
Carrington College [Member] | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax |  |  |  |  |  | $ 11,300 |  |
Cash and restricted cash transferred to discontinued operations |  |  |  |  |  | (9,900) |  |
DeVry University [Member] |  |  |  |  |  |  |  |
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax |  |  |  |  |  | 22,300 |  |
Earn Out Term |  |  | 10 years |  |  |  |  |
Earn Out Maximum |  |  | $ 20,000 |  |  |  |  |
Receivable with Imputed Interest, Face Amount |  | $ 10,000 | $ 10,000 |  |  |  |  |
Receivable with Imputed Interest, Effective Yield (Interest Rate) |  | 4.00% | 4.00% |  |  |  |  |
Receivable with Imputed Interest, Due Date |  | Jan. 01, 2022 | Jan. 01, 2022 |  |  |  |  |
Operating lease, option to extend |  |  |  | true |  |  |  |
Lessee, Operating Lease, Term of Contract |  |  |  | 1 year |  |  |  |
Cash and restricted cash transferred to discontinued operations |  |  |  |  |  | $ (40,200) |  |
Adtalem Educational Do Brazil [Member] | Discontinued Operations, Disposed of by Sale |  |  |  |  |  |  |  |
Consideration from disposal | R$ |  |  |  |  |  |  | R$ 1,920 |
Proceeds from sale of business, net of cash transferred | $ 313,500 |  |  |  |  |  |  |
Proceeds From Sales Of Business Sale, Proceeds | 345,900 |  |  |  |  |  |  |
Proceeds From Sales Of Business, Cash | 56,000 |  |  |  |  |  |  |
Proceeds from Sales of Business, Affiliate and Productive Assets | 401,900 |  |  |  |  |  |  |
Cash balance | $ 88,400 |  |  |  |  |  |  |
Derivative notional amount | R$ |  |  |  |  |  |  | R$ 2,154 |
Derivative, Gain (Loss) on Derivative, Net |  |  |  |  | $ 110,700 |  |  |
Gain (Loss) on Derivative Instruments, Net, Pretax |  |  |  |  | $ 110,700 |  |  |

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