Fair Value Measurements (Details) $ in Thousands, R$ in Millions				3 Months Ended	9 Months Ended
	Jul. 31, 2019 USD ($)	Dec. 11, 2018 USD ($)	Dec. 11, 2018 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2020 USD ($)	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Apr. 24, 2020 BRL (R$)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, gross				$ 454,750	$ 454,750	$ 1,091,750	$ 294,000
Accounts Receivable | Credit extension program
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure				35,600	35,600	$ 29,400	34,300
Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset				600	600
DeVry University [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
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
DeVry University [Member] | Discount rate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Measurement Input						0.04
DeVry University [Member] | Other Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure				10,000	10,000		10,000
DeVry University [Member] | Prepaid Expenses and Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure						$ 10,000
Chicago, Illinois Campus [Member] | Discontinued Operations, Disposed of by Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure				41,100	41,100	$ 42,400	41,400
Receivable with Imputed Interest, Face Amount	$ 46,800
Receivable with Imputed Interest, Effective Yield (Interest Rate)	4.00%
Receivable with Imputed Interest, Due Date	Jul. 31, 2024
Chicago, Illinois Campus [Member] | Discount rate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Measurement Input						0.07
Chicago, Illinois Campus [Member] | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Receivable, Fair Value Disclosure				41,100	41,100	$ 42,400	41,400
Adtalem Educational Do Brazil [Member] | Discontinued Operations, Disposed of by Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative notional amount | R$								R$ 2,154
Gain on cash flow hedge				111,800	83,800
Adtalem Educational Do Brazil [Member] | Prepaid Expenses and Other Current Assets | Discontinued Operations, Disposed of by Sale
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset				$ 83,800	$ 83,800
Interest Rate Swap | Other Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability						$ 9,500	$ 10,400