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Subsequent Events - Additional Information (Detail) (USD $)
 3 Months Ended 9 Months Ended 3 Months Ended 3 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Dec. 31, 2013
Subsequent Event [Member]
Oct. 31, 2013
Subsequent Event [Member]
Campus
Dec. 31, 2013
Subsequent Event [Member]
Minimum [Member]
Forecast [Member]
Dec. 31, 2013
Subsequent Event [Member]
Maximum [Member]
Forecast [Member]
Oct. 31, 2013
Health Education [Member]
Subsequent Event [Member]
Campus
Oct. 31, 2013
Design & Technology [Member]
Subsequent Event [Member]
Campus
Subsequent Event [Line Items]                
Asset impairment charges and severance and related costs     $ 4,000,000          
Number of additional Campuses       5     3 2
Cash payment to pre-closing distribution and adjustment     290,000,000          
Expected gain on sale of pending transactions $ (39,000) $ (6,973,000)     $ 120,000,000 $ 130,000,000