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Restructuring Charges - Restructuring Charges by Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
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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.

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