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Segment Reporting - Summary Financial Information by Reporting Segment (Parenthetical) (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Sep. 30, 2014
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting Information [Line Items]                
Asset impairment charge $ 9,700       $ 11,500 $ 60,515 $ 36,141 $ 21,647
Income from insurance recovery         $ 8,600      
Culinary Arts [Member]                
Segment Reporting Information [Line Items]                
Asset impairment charge $ 9,000 $ 33,400 $ 9,700     35,100 10,300  
Trade name and asset impairment charges           17,000 8,900 13,000
Settlement of a legal matter               15,500
Corporate and Other [Member]                
Segment Reporting Information [Line Items]                
Income from insurance recovery             8,600  
Transitional Group [Member]                
Segment Reporting Information [Line Items]                
Asset impairment charge     $ 1,700 $ 6,000   6,100 14,500  
Trade name and asset impairment charges           $ 1,800 $ 2,200 7,700
Settlement of a legal matter               $ 10,500