Organization and Operations - Additional Information (Detail)	Sep. 30, 2015 Bed Facility State	Aug. 27, 2015 Bed
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	54
Number of beds at the facility | Bed	83,000	600
Number of states in which company facilities are located | State	19