Facility Activation, Developments and Closures (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended			3 Months Ended	6 Months Ended
	May 31, 2011	Nov. 30, 2010	Sep. 30, 2010	Jun. 30, 2011	Jun. 30, 2011	Jun. 07, 2011	Dec. 31, 2010
Carrying value of five idle facilities				$ 105.7	$ 105.7		$ 107.5
Existing number of facilities managed for CDCR		5
Federal three-judge court ruling	In May 2011, the U.S. Supreme Court upheld a lower court ruling requiring California to reduce its inmate population to 137.5% of its current capacity, or 110,000 inmates, by May 24, 2013.
Existing number of inmates managed for CDCR		9,588
Percentage of management revenue generated from CDCR				13.30%	13.80%
Number of inmates in the state of California						143,500
Number of inmates to be reduced to	110,000
Number of facilities targeted for reduction						33
Number of beds funding approved for				9,588	9,588
Terms of contract awarded by the Georgia Department of Corrections			The contract has an initial one-year base term with 24 one-year renewal options. Additionally, the contract provides for a population guarantee of 90% following a 120-day ramp-up period.
Trousdale County, Tennessee Facility [Member]
Construction cost of facility, capitalized amount					27.8
Prairie Correctional Facility [Member]
Number of beds at the facility				1,600	1,600
Huerfano County Correctional Center Facility [Member]
Number of beds at the facility				752	752
Diamondback Correctional Facility [Member]
Number of beds at the facility				2,160	2,160
Crowley County Correctional Facility and Prairie Correctional Facility [Member]
Expected additional number of offenders to be managed by the company		3,256
Jenkins Correctional Facility [Member]
Expected additional number of offenders to be managed by the company			1,150
Expected construction cost			57.0