Discontinued Operations - Additional Information (Detail)	Jun. 30, 2013 Wilkinson County Correctional Facility Facility	Jun. 30, 2013 Dawson State Jail Facility	Jan. 31, 2012 Delta Correctional Facility Facility	Nov. 30, 2011 Delta 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	1,000	2,216		1,172
Number of inmates being transferred from facility			900