SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended		12 Months Ended
	Jun. 30, 2012	Sep. 30, 2011	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Business Activities [Abstract]
Number of principal area of study			5
Number of schools operates across the United States			38
Number of training sites operates across the United States			5
Number of states in which schools operates across the United States			17
Cash and Cash Equivalents [Abstract]
Maximum maturity period for classification of cash equivalents			3 months
Advertising Costs [Abstract]
Advertising expense			$ 34,200,000		$ 40,800,000		$ 44,300,000
Goodwill and Other Intangible Assets [Abstract]
Goodwill impairment			18,300,000				6,200,000
Number of units impaired	5	5	7				3
Impairment of goodwill		9,300,000	(33,717,000)	[1]	(9,338,000)	[2]
Goodwill Impairment Loss Pre Tax Charge	15,400,000
Goodwill, discontinued operations	5,500,000	1,000,000					1,400,000
Concentration of Credit Risk [Abstract]
Federal deposit insurance limit			250,000
Excess cash, FDIC insured amount			60,300,000
Impairment of Long-Lived Assets [Abstract]
Pre tax charge for impairment of leasehold improvements	8,100,000		1,300,000
Number Of Assets Groups Impaired	10
Pretax charge related to impairment of long lived assets			8,300,000
Pretax charges related to definite-lived intangible assets	200,000
Impairment related to discontinued operations	4,000,000
New Accounting Pronouncements [Abstract]
Likelihood goodwill, impairment test (in hundredths)			50.00%
Accreditation [Member]
Impairment of Long-Lived Assets [Abstract]
Impairment charge of intangible asset			$ 1,000,000

[1] $5.5 million included in discontinued operations.

[2] $1.0 million included in discontinued operations.