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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