Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended			3 Months Ended	12 Months Ended			3 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2011 Carrington Colleges Group Inc	Jun. 30, 2012 Carrington Colleges Group Inc	Jun. 30, 2012 American University Of Caribbean	Jun. 30, 2012 Faculdade Boa Viagem	Jun. 30, 2012 Advanced Academics	Mar. 31, 2012 Advanced Academics	Jun. 30, 2012 Advanced Academics	Jun. 30, 2012 Advanced Academics Curriculum Software And Consumer Contracts
Intangible Assets [Line Items]
Amortization expense for amortized intangible assets	$ 10,900,000	$ 6,100,000	$ 10,800,000
Percentage decline in revenue compared to prior periods				27.00%				46.00%	5.00%
Intangible assets impairment test, carrying amount in excess of fair value								20,000,000
Impairment of indefinite-lived intangible assets				41,200,000	41,200,000			1,300,000		1,300,000
Impairment of goodwill	50,914,000			33,800,000	33,839,000			17,100,000		17,100,000
Intangible asset written down				75,000,000						19,400,000	1,000,000
Estimated fair value of finite-lived intangible assets								0		0
Goodwill and other intangibles impairment charges, income tax benefit				19,300,000						900,000
Estimated fair value of indefinite-lived intangible assets				71,100,000
Goodwill, fair value				151,900,000
Goodwill write-down, amount deductible for tax purposes				0
Goodwill acquired	86,112,000	5,010,000				68,321,000	17,791,000
Cash Received on Sale of Stalla Assets	4,475,000
Increase in indefinite-lived intangible assets	84,300,000
Addition in indefinite-lived Intangible Assets						$ 117,100,000	$ 15,800,000