Other Long-Term Assets Other Long-Term Assets (Details) (USD $)	1 Months Ended	12 Months Ended
	Apr. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Schedule of Other Assets, Noncurrent [Line Items]
Bad Debt Expense and Fair Value Adjustments			$ 156,052,000
Student receivables, net of allowances		20,163,000	11,425,000
Deferred financing fees		14,768,000	15,511,000
Deferred compensation		12,164,000	10,819,000
Other		8,906,000	8,858,000
Total other long-term assets		56,001,000	46,613,000
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning Balance		199,357,000	167,403,000
Bad debt expense		(163,926,000)	(134,587,000)	(105,593,000)
Amounts written off		(113,001,000)	(124,098,000)
Ending Balance		250,282,000	199,357,000	167,403,000
Sale of EFL program loans	42,800,000	0	42,806,000	0
Allowances for student receivables - Noncurrent		14,602,000	7,162,000
Students [Member]
Schedule of Other Assets, Noncurrent [Line Items]
Student Receivables, Gross		34,800,000	18,600,000
In-School Students [Member]
Schedule of Other Assets, Noncurrent [Line Items]
Student Receivables, Gross		24,400,000	12,700,000
Out-of-School Students [Member]
Schedule of Other Assets, Noncurrent [Line Items]
Student Receivables, Collection Period, Extended		36 months
Student Receivables, Gross		$ 10,400,000	$ 5,900,000