Business Segments and Geographic Information - Schedule of Operating and Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Revenues	$ 588,177	$ 565,419	$ 1,139,362	$ 1,141,796
Operating income from segments:
Operating income from segments	144,370	127,104	274,456	241,213
General and Administrative Expenses	(49,296)	(54,688)	(97,856)	(103,167)
Operating income	95,074	72,416	176,600	138,046
Operating Segments
Revenues:
Revenues	588,177	565,419	1,139,362	1,141,796
Operating income from segments:
Operating income from segments	144,370	127,104	274,456	241,213
Operating Segments | U.S. Secure Services
Revenues:
Revenues	353,402	368,394	704,647	755,405
Operating income from segments:
Operating income from segments	72,824	78,902	147,532	147,416
Operating Segments | Electronic Monitoring and Supervision Services
Revenues:
Revenues	121,484	64,835	209,405	125,213
Operating income from segments:
Operating income from segments	54,245	28,991	93,165	54,468
Operating Segments | Reentry Services
Revenues:
Revenues	65,720	77,070	127,151	152,174
Operating income from segments:
Operating income from segments	14,207	13,407	24,211	26,340
Operating Segments | International Services
Revenues:
Revenues	47,571	55,120	98,159	109,004
Operating income from segments:
Operating income from segments	3,094	5,804	9,548	12,989
Segment Reconciling Items
Operating income from segments:
General and Administrative Expenses	$ (49,296)	$ (54,688)	$ (97,856)	$ (103,167)