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Contingencies - Additional Information (Detail) |  | 9 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 22, 2011 Student | Sep. 30, 2015 USD ($) | Dec. 31, 2014 USD ($) | May. 23, 2012 Member | Jan. 13, 2012 Finding | Jul. 14, 2008 Employee | Apr. 10, 2008 Claim | Mar. 05, 2008 Claim
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Accrual for legal fees and settlements | $ |  | $ 2,600,000 | $ 2,300,000 |  |  |  |  |
Number of OIG Findings |  |  |  |  | 3 |  |  |
Number of documentation of attendance of students enrolled in CTU's |  |  |  |  | 1 |  |  |
Number of calculation of returns of Title IV Program funds |  |  |  |  | 1 |  |  |
Surrett [Member] |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of alleged claims for equitable relief | Claim |  |  |  |  |  |  |  | 2
Number of claims added for money damages | Claim |  |  |  |  |  |  | 2 |
Number of students in class | Student | 2,600 |  |  |  |  |  |  |
Opt-out period expiration date |  | Jun. 20, 2011 |  |  |  |  |  |
Number of individuals WCI file motion to compel arbitration | Member |  |  |  | 1,062 |  |  |  |
False Claims Act [Member] |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of former employees who filed complaint | Employee |  |  |  |  |  | 4 |  |
OIG Audit [Member] |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |
Potential liability related to audit | $ |  | $ 800,000 |  |  |  |  |  |

X
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