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Assets Held for Sale - Additional Information (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Assets Held For Sale [Line Items]        
Asset impairment charges [1],[2] $ 33,446 $ 1,547 $ 43,133 $ 8,991
Discontinued Operations [Member] | LCB Institutions [Member]        
Assets Held For Sale [Line Items]        
Asset impairment charges $ 33,446 $ 1,523 $ 43,133 $ 8,923
[1] Asset impairment charges for the current year quarter and year to date relate to impairment recorded for our LCB campuses which are held for sale as a result of our fair value analysis.
[2] Includes the results of operations for our LCB campuses that are held for sale, which met the criteria to be considered discontinued operations under ASC Topic 360, in addition to our Transitional Group campuses that completed their teach-out prior to 2015.