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Nature of Business - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2017 Degrees Colleges
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Description of area of the company's campus in Phoenix, Arizona | 275 acre campus
Number of colleges in Phoenix, Arizona | Colleges | 9
Number of degree programs and certificates | Degrees | 225

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- Definition Real estate property description. + References No definition available. + Details
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