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Segment Reporting - Summary Financial Information by Reporting Segment (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Dec. 31, 2012
Segment Reporting Information [Line Items]          
Revenue $ 251,313 $ 316,155 $ 810,908 $ 1,047,766  
Operating (Loss) Income (68,649) (40,442) (159,351) (108,276)  
Total Assets 985,183   985,183   1,122,703
CTU [Member]
          
Segment Reporting Information [Line Items]          
Revenue 82,424 86,484 259,520 274,652  
Operating (Loss) Income 9,208 10,324 41,708 41,584  
Total Assets 74,300   74,300   72,554
AIU [Member]
          
Segment Reporting Information [Line Items]          
Revenue 56,284 71,204 182,518 238,985  
Operating (Loss) Income (5,930) 1,084 (1,763) 22,623  
Total Assets 60,755   60,755   65,092
University Schools [Member]
          
Segment Reporting Information [Line Items]          
Revenue 138,708 157,688 442,038 513,637  
Operating (Loss) Income 3,278 11,408 39,945 64,207  
Total Assets 135,055   135,055   137,646
Health Education [Member]
          
Segment Reporting Information [Line Items]          
Revenue 34,129 40,469 107,439 140,018  
Operating (Loss) Income (14,783) (12,758) (53,200) (64,660)  
Total Assets 36,884   36,884   52,511
Culinary Arts [Member]
          
Segment Reporting Information [Line Items]          
Revenue 44,256 54,415 134,771 175,148  
Operating (Loss) Income (23,655) (10,136) (52,809) (11,991)  
Total Assets 145,860   145,860   173,477
Design & Technology [Member]
          
Segment Reporting Information [Line Items]          
Revenue 24,752 33,129 82,899 109,654  
Operating (Loss) Income (10,036) (6,240) (24,787) (50,912)  
Total Assets 32,108   32,108   30,720
Career Schools [Member]
          
Segment Reporting Information [Line Items]          
Revenue 103,137 128,013 325,109 424,820  
Operating (Loss) Income (48,474) (29,134) (130,796) (127,563)  
Total Assets 214,852   214,852   256,708
Corporate and Other [Member]
          
Segment Reporting Information [Line Items]          
Revenue   16   50  
Operating (Loss) Income (7,561) (5,389) (24,979) 1,746  
Total Assets 342,734   342,734   433,233
Subtotal [Member]
          
Segment Reporting Information [Line Items]          
Revenue 241,845 285,717 767,147 938,507  
Operating (Loss) Income (52,757) (23,115) (115,830) (61,610)  
Total Assets 692,641   692,641   827,587
Transitional Schools [Member]
          
Segment Reporting Information [Line Items]          
Revenue 9,468 30,438 43,761 109,259  
Operating (Loss) Income (15,892) (17,327) (43,521) (46,666)  
Total Assets 19,731   19,731   38,448
Discontinued Operations [Member]
          
Segment Reporting Information [Line Items]          
Total Assets $ 272,811   $ 272,811   $ 256,668