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Goodwill and Other Intangible Assets - Schedule of Cost Basis, Accumulated Amortization and Net Book Value of Other Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Intangible Assets Net Excluding Goodwill [Line Items]    
Net book value, non-amortizable intangible assets $ 7,900 $ 7,900
Net book value, amortizable intangible assets 600 1,400
LCB Trade Name [Member]    
Intangible Assets Net Excluding Goodwill [Line Items]    
Amortizable intangible assets 1,400 1,400
Amortizable intangible assets, accumulated amortization (800)  
Accreditation, licensing, and Title IV Program participation rights [Member]    
Intangible Assets Net Excluding Goodwill [Line Items]    
Net book value, non-amortizable intangible assets 1,000 1,000
CTU Trade Name [Member]    
Intangible Assets Net Excluding Goodwill [Line Items]    
Net book value, non-amortizable intangible assets $ 6,900 $ 6,900