Organization and Operations - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2017 Bed Facility State Center Business
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	88,400
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	11
Number of facilities owned or controlled by company	48
Residential Reentry Centers
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Number of centers owned or controlled by company | Center	27