Basis of Presentation - Additional Information (Details)	Mar. 31, 2020 bed facility person detainee
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of beds | bed	94,000
Correctional, detention and residential treatment facilities including projects under development | facility	126
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