Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended												12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Net revenues	$ 639,185	$ 702,499	$ 737,188	$ 682,095	$ 695,391	$ 754,340	$ 771,866	$ 666,032	$ 650,757	$ 667,896	$ 655,469	$ 534,399	$ 2,760,967	$ 2,887,629	$ 2,508,521
Costs and expenses:
Educational services													1,504,378	1,480,776	1,267,106
General and administrative													760,841	759,099	667,191
Management fees paid to affiliates													0	0	32,055
Depreciation and amortization													158,663	146,480	123,359
Goodwill and indefinite-lived intangible asset impairments (Note 5)													1,746,765	0	0
Total costs and expenses													4,170,647	2,386,355	2,089,711
(Loss) Income before interest, loss on extinguishment of debt and income taxes													(1,409,680)	501,274	418,810
Interest expense, net													110,330	120,694	121,456
Loss on extinguishment of debt													9,474	11,368	47,207
(Loss) Income before income taxes	(1,234,550)	(442,340)	103,291	44,115	58,103	113,457	138,432	59,220	80,932	109,252	34,540	25,423	(1,529,484)	369,212	250,147
Provision for income taxes (benefit) expense													(13,743)	139,704	81,641
Net (loss) income	$ (1,188,706)	$ (417,116)	$ 63,127	$ 26,954	$ 34,799	$ 72,983	$ 85,278	$ 36,448	$ 47,900	$ 84,570	$ 20,274	$ 15,762	$ (1,515,741)	$ 229,508	$ 168,506
(Loss) Earnings per share: (Note 3)
Basic													$ (11.97)	$ 1.67	$ 1.23
Diluted	$ (9.51)	$ (3.31)	$ 0.49	$ 0.21	$ 0.26	$ 0.53	$ 0.61	$ 0.25	$ 0.33	$ 0.59	$ 0.14	$ 0.13	$ (11.97)	$ 1.66	$ 1.22
Weighted average number of shares outstanding: (Note 3)
Basic													126,659	137,376	136,917
Diluted													126,659	138,316	137,667