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Discontinued Operations and Assets Held for Sale (Additional Information) (Details) - DeVry University [Member] $ in Millions |  | 3 Months Ended
--- | --- | ---
Dec. 11, 2018 USD ($) | Dec. 11, 2018 USD ($) | Sep. 30, 2021 lease
Earn Out Term | 10 years |  |
Earn Out Maximum | $ 20.0 |  |
Receivable with Imputed Interest, Face Amount | $ 10.0 | $ 10.0 |
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
Lessor, Operating Lease, Number Of Contracts Without Option To Extend | lease |  |  | 1
Lessee, Operating Lease, Term of Contract |  |  | 1 year

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