FINANCING RECEIVABLES - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Nonperforming loan	Sep. 30, 2013 Nonperforming loan	Sep. 30, 2014 Accounts Receivable	Sep. 30, 2013 Accounts Receivable	Sep. 30, 2014 Other Assets	Sep. 30, 2013 Other Assets	Jun. 30, 2014 Minimum	Jun. 30, 2014 Maximum	Jun. 30, 2014 Becker	Jun. 30, 2014 United States Medical Licensing Exam [Member]
Financing Receivables [Line Items]
Repayment plan, number of monthly installments									12 months	60 months
Term of loan, in months											18 months	6 months
Net Institutional Student Loans, classified as Accounts Receivable					$ 20.5	$ 20.8
Net Institutional Student Loans, classified as Other Assets							27.0	23.7
Number of days past due, to consider loans as nonperforming	120 days
Impaired Financing Receivable, Related Allowance			17.2	16.3
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 14.7	$ 13.0