DEBT - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Line of Credit Facility [Line Items]
Aggregate commitments including borrowings and letters of credit	$ 400
Commitment fee percentage	0.20%
Annual fee percentage	0.125%
Prime Rate
Line of Credit Facility [Line Items]
Addition to LIBOR to determine interest rate	0.75%
Percentage of maximum raise in interest rate over base rate	1.50%
LIBOR
Line of Credit Facility [Line Items]
Percentage of maximum raise in interest rate over base rate	2.50%
Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowings and letters of credit	550
Letter of credit, outstanding	$ 7.8	$ 13.2
Addition to LIBOR to determine interest rate	1.75%
Revolving Credit Facility | Centro Universitario do Vale do Ipojuca [Member] | Student Relationships [Member]
Line of Credit Facility [Line Items]
Borrowings and letters of credit, maturity date	2016-05