FAIR VALUE MEASUREMENTS (Assets Measured at Fair Value on Recurring Basis) (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Marketable Securities and Investments	$ 7,269	$ 4,255	$ 4,268
Institutional Loans Receivable, Net	42,146	44,320	38,311
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents	294,801	430,690	212,239
Marketable Securities and Investments	7,269	4,255	4,268
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	302,070	434,945	216,507
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	42,146	44,320	38,311
Loan Receivable from DeVry University	10,000
Deferred Acquisition Obligations	18,485	18,585	23,903
FIES Receivable			16,087
Total Financial Assets at Fair Value	70,631	62,905	78,301
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