SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended			12 Months Ended
	Jun. 30, 2013 Unit AssetsGroup	Jun. 30, 2012 Unit AssetsGroup	Sep. 30, 2011 Unit	Dec. 31, 2013 StudyArea School Site State AssetsGroup	Dec. 31, 2012 Unit AssetsGroup		Dec. 31, 2011	Mar. 31, 2013 AssetsGroup
Business Activities [Abstract]
Number of principal area of study				5
Number of schools operates across the United States				33
Number of training sites operates across the United States				5
Number of states in which schools operates across the United States				15
Cash and Cash Equivalents [Abstract]
Maximum maturity period for classification of cash equivalents				3 months
Advertising Costs [Abstract]
Advertising expense				$ 29,300,000	$ 30,300,000		$ 38,100,000
Goodwill and Other Intangible Assets [Abstract]
Number of units impaired	2	5	5		7
Goodwill impairment loss pre tax charge	3,100,000	15,400,000
Goodwill impairment					18,300,000
Goodwill, discontinued operations		8,400,000	1,000,000		4,500,000
Impairment of goodwill			9,300,000	3,062,000	33,717,000	[1]
Concentration of Credit Risk [Abstract]
Federal deposit insurance limit				250,000
Excess cash, FDIC insured amount				66,700,000
Impairment of Long-Lived Assets [Abstract]
Number of assets groups impaired	4	10			4			2
Pretax charge related to impairment of long lived assets	1,400,000							1,700,000
Impairment related to discontinued operations	700,000	4,400,000			900,000			1,600,000
Pre tax charge for impairment of leasehold improvements		8,300,000			1,300,000
Pretax charges related to definite-lived intangible assets		200,000			8,100,000
Accreditation [Member]
Impairment of Long-Lived Assets [Abstract]
Impairment charge of intangible asset			$ 1,000,000

[1] $12.8 million included in discontinued operations.