Business Segments and Geographic Information - Schedule of Operating and Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Revenues	$ 616,683	$ 557,277	$ 1,756,045	$ 1,699,073
Operating income from segments:
Operating income from segments	148,143	124,494	422,599	365,707
General and Administrative Expenses	(50,022)	(50,475)	(147,878)	(153,642)
Operating income	98,121	74,019	274,721	212,065
Operating Segments
Revenues:
Revenues	616,683	557,277	1,756,045	1,699,073
Operating income from segments:
Operating income from segments	148,143	124,494	422,599	365,707
Operating Segments | U.S. Secure Services
Revenues:
Revenues	368,493	369,609	1,073,140	1,125,014
Operating income from segments:
Operating income from segments	67,462	72,054	214,994	219,471
Operating Segments | Electronic Monitoring and Supervision Services
Revenues:
Revenues	137,039	74,575	346,444	199,788
Operating income from segments:
Operating income from segments	67,673	35,052	160,838	89,520
Operating Segments | Reentry Services
Revenues:
Revenues	65,406	60,740	192,557	212,914
Operating income from segments:
Operating income from segments	9,816	13,265	34,027	39,604
Operating Segments | International Services
Revenues:
Revenues	45,745	52,353	143,904	161,357
Operating income from segments:
Operating income from segments	3,192	4,123	12,740	17,112
Segment Reconciling Items
Operating income from segments:
General and Administrative Expenses	$ (50,022)	$ (50,475)	$ (147,878)	$ (153,642)