FAIR VALUE MEASUREMENTS (Assets Measured at Fair Value on Recurring Basis) (Detail) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities and Investments	$ 8,341	$ 4,255	$ 4,200
Institutional Loans Receivable, Net	42,577	44,320	41,646
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	321,211	430,690	265,325
Marketable Securities and Investments	8,341	4,255	4,200
Institutional Loans Receivable, Net	0	0	0
Loan Receivable from DeVry University	0
Deferred Acquisition Obligations	0	0	0
FIES Receivable			0
Total Financial Assets at Fair Value	329,552	434,945	269,525
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	0	0	0
Marketable Securities and Investments	0	0	0
Institutional Loans Receivable, Net	42,577	44,320	41,646
Loan Receivable from DeVry University	10,000
Deferred Acquisition Obligations	16,001	18,585	21,393
FIES Receivable			15,094
Total Financial Assets at Fair Value	68,578	62,905	78,133
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	0	0	0
Marketable Securities and Investments	0	0	0
Institutional Loans Receivable, Net	0	0	0
Loan Receivable from DeVry University	0
Deferred Acquisition Obligations	0	0	0
FIES Receivable			0
Total Financial Assets at Fair Value	$ 0	$ 0	$ 0