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Restructuring Charges - Restructuring Charges by Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Restructuring And Related Cost [Line Items]        
Severance and related expenses [1],[2] $ 57 $ 12,761 $ 272 $ 13,645
University Group [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses   614 84 627
Corporate and Other [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses 57 4,318 153 4,318
Subtotal [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses $ 57 4,932 237 4,945
Culinary Arts [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses   125 5 265
Transitional Group [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses   7,704 30 8,435
CTU [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses   275 18 288
AIU [Member]        
Restructuring And Related Cost [Line Items]        
Severance and related expenses   $ 339 $ 66 $ 339
[1] Includes charges related to COBRA and outplacement services which are assumed to be completed by the third month following an employee’s departure.
[2] Severance payments will result in future cash expenditures through 2018.