Basis of Presentation (Details)	Sep. 30, 2019 bed facility detainee person
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of beds | bed	96,000
Correctional, detention and residential treatment facilities including projects under development | facility	130
Provision of monitoring services tracking offenders, number of individuals (more than) | person	210,000
Provision of monitoring services tracking offenders using technology products (in detainees) | detainee	100,000