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Property and Equipment, Net (Additional Information) (Details) - USD ($) $ in Thousands			3 Months Ended				9 Months Ended
	Sep. 27, 2019	Jul. 31, 2019	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2020	Mar. 31, 2019	Jun. 30, 2019
Real Estate [Line Items]
Gain on Business Interruption Insurance Recovery							$ 0	$ 15,571
Property and equipment, net			$ 286,346		$ 279,387		286,346	279,387	$ 283,433
Proceeds From Down Payment On Seller Loan							5,200	0
Notes receivable			52,507		65,794		52,507	65,794	74,269
Financing payables			10,103		16,372		10,103	16,372	$ 16,146
Proceeds from Sales of Assets, Investing Activities							6,421	0
Realized Gain on Sale of Assets			$ 0		0		$ 4,779	0
Discontinued Operations, Disposed of by Sale \| DePaul College Prep
Real Estate [Line Items]
Proceeds from disposal		$ 52,000
Proceeds From Down Payment On Seller Loan		5,200		$ 5,200
Receivable with Imputed Interest, Face Amount		$ 46,800
Receivable with Imputed Interest, Effective Yield (Interest Rate)		4.00%					4.00%
Discontinued Operations, Disposed of by Sale \| DePaul College Prep \| Other Assets
Real Estate [Line Items]
Notes receivable		$ 40,300
Discontinued Operations, Disposed of by Sale \| DePaul College Prep \| Other Liabilities
Real Estate [Line Items]
Financing payables		$ 45,500
Discontinued Operations, Disposed of by Sale \| Columbus, Ohio Campus
Real Estate [Line Items]
Proceeds from Sales of Assets, Investing Activities	$ 6,400
American University Of The Caribbean And Ross University [Member]
Real Estate [Line Items]
Gain on Business Interruption Insurance Recovery						$ 15,600
Dominica Campus [Member] \| Ross University School of Medicine [Member]
Real Estate [Line Items]
Impairment of Long-Lived Assets Held-for-use								39,100
Property and equipment, net					$ 0			$ 0