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Restructuring Charges - Restructuring Charges by Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses | [1],[2] | $ 507 | $ 24,085 | $ 3,979
University Group [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 84 | 1,078 | 647
Corporate and Other [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 388 | 4,631 | 1,087
Subtotal [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 472 | 5,709 | 1,734
Culinary Arts [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 5 | 8,229 | 455
Transitional Group [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 30 | 10,147 | 1,790
CTU [Member] | University Group [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | 18 | 405 | 544
AIU [Member] | University Group [Member] |  |  |  |
Restructuring And Related Cost [Line Items] |  |  |  |
Severance and related expenses |  | $ 66 | $ 673 | $ 103
[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 charges will result in future cash expenditures through 2018.

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