Business Segments and Geographic Information - Schedule of Operating and Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues:
Revenues	$ 608,209	$ 551,185
Operating income from segments:
Operating income from segments	142,794	130,086
General and Administrative Expenses	(50,134)	(48,560)
Operating income	92,660	81,526
Operating Segments
Revenues:
Revenues	608,209	551,185
Operating income from segments:
Operating income from segments	142,794	130,086
Operating Segments | U.S. Secure Services
Revenues:
Revenues	365,957	351,245
Operating income from segments:
Operating income from segments	64,344	74,081
Operating Segments | Electronic Monitoring and Supervision Services
Revenues:
Revenues	132,640	87,921
Operating income from segments:
Operating income from segments	64,688	38,920
Operating Segments | Reentry Services
Revenues:
Revenues	64,223	61,431
Operating income from segments:
Operating income from segments	10,186	10,631
Operating Segments | International Services
Revenues:
Revenues	3,576	6,454
Operating income from segments:
Operating income from segments	45,389	50,588
Segment Reconciling Items
Operating income from segments:
General and Administrative Expenses	$ (50,134)	$ (48,560)