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Discontinued Operations - Additional Information (Detail) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Jun. 30, 2013
Dawson State Jail
Facility
Jun. 30, 2013
Wilkinson County Correctional Facility
Facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Housing capacity of terminated facility, in beds     2,216 1,000
Assets of discontinued operations $ 0      
Current assets of discontinued operations   15,000    
Current liabilities of discontinued operations $ 53,000 $ 886,000