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Restructuring Charges - Restructuring Charges by Segment (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Restructuring And Related Cost [Line Items]      
Severance and related expenses [1] $ 24,085 $ 3,979 $ 5,556
University Group [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 1,078 647 213
Corporate and Other [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 4,631 1,087 2,088
Subtotal [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 5,709 1,734 2,301
Culinary Arts [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 8,229 455 472
Transitional Group [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 10,147 1,790 2,783
CTU [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses 405 544  
AIU [Member]      
Restructuring And Related Cost [Line Items]      
Severance and related expenses $ 673 $ 103 $ 213
[1] Includes payments related to COBRA and outplacement services which are assumed to be completed by the third month following an employee’s departure.