Organization and Operations - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2017 Facility Bed State Center Business
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of facilities owned by government partners, managed	10
Number of beds at the facility | Bed	87,400
Number of states in which company facilities are located | State	20
Number of business offerings | Business	3
Correctional And Detention Facility
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of facilities owned by government partners, managed	10
Number of facilities owned or controlled by company	46
Residential Reentry Centers
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of centers owned or controlled by company | Center	28