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Property and Equipment, Net (Additional Information) (Details) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended
	Sep. 27, 2019	Jul. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Real Estate [Line Items]
Gain on Business Interruption Insurance Recovery				$ 15,571	$ 0	$ 15,571
Property and equipment, net			$ 281,975	275,546	281,975	275,546	$ 283,433
Proceeds From Down Payment On Seller Loan					5,200	0
Notes receivable			60,494	56,718	60,494	56,718	74,269
Financing payables			13,488	20,804	13,488	20,804	$ 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
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				2,300		40,100
Property and equipment, net				$ 0		$ 0