Organization and Operations - Additional Information (Detail)	Sep. 30, 2016 Bed Facility State	Jun. 10, 2016 Bed
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of facilities owned by government partners, managed	11
Number of beds at the facility | Bed	89,300	112
Number of states in which company facilities are located | State	20
Correctional And Detention Facility
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of facilities owned by government partners, managed	11
Number of facilities owned or controlled by company	49
Residential Reentry Facility
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of facilities owned or controlled by company	25