Business Segments and Geographic Information - Schedule of Operating and Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Revenues	$ 551,185	$ 576,377
Operating income from segments:
Operating income from segments	130,086	114,109
General and Administrative Expenses	(48,560)	(48,479)
Operating income	81,526	65,630
Operating Segments
Revenues:
Revenues	551,185	576,377
Operating income from segments:
Operating income from segments	130,086	114,109
Operating Segments | U.S. Secure Services
Revenues:
Revenues	351,245	387,011
Operating income from segments:
Operating income from segments	74,081	71,465
Operating Segments | Electronic Monitoring and Supervision Services
Revenues:
Revenues	87,921	60,378
Operating income from segments:
Operating income from segments	38,920	25,477
Operating Segments | Reentry Services
Revenues:
Revenues	61,431	75,104
Operating income from segments:
Operating income from segments	10,631	9,982
Operating Segments | International Services
Revenues:
Revenues	50,588	53,884
Operating income from segments:
Operating income from segments	6,454	7,185
Segment Reconciling Items
Operating income from segments:
General and Administrative Expenses	$ (48,560)	$ (48,479)