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Business Segments and Geographic Information - Sources of Revenue (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Revenues:      
Revenues $ 2,256,612 $ 2,350,098 $ 2,477,922
Secure Services      
Revenues:      
Revenues 1,702,785 1,798,756  
Electronic Monitoring and Supervision Services      
Revenues:      
Revenues 278,934 241,944  
Reentry Services      
Revenues:      
Revenues $ 274,893 $ 309,398