Fair Value Measurements - Additional Information (Detail) (USD $)	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Jun. 30, 2012	Dec. 31, 2011 Carrington Colleges Group Inc	Jun. 30, 2012 Carrington Colleges Group Inc	Jun. 30, 2012 Advanced Academics	Jun. 30, 2012 Advanced Academics
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of indefinite-lived intangible assets		$ 71,100,000
Impairment of indefinite-lived intangible assets		41,200,000	41,200,000	1,300,000	1,300,000
Goodwill, fair value		151,900,000
Impairment of goodwill	50,914,000	33,800,000	33,839,000	17,100,000	17,100,000
Intangible assets impairment test, carrying amount in excess of fair value				20,000,000
ATC earn-out liability, discount rate	6.20%
Fair value of institutional loans receivables	$ 36,500,000