Business Segments and Geographic Information - Schedule of Reconciliation of Total Operating Income from its Reportable Segments to Income Before Income Taxes and Equity in Earnings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 2,423,702	$ 2,413,167	$ 2,376,727
Unallocated amounts:
General and Administrative Expenses	(213,028)	(190,766)	(196,972)
Net interest expense	(181,837)	(210,500)	(148,562)
Loss on extinguishment of debt	(86,637)	(8,532)	(37,895)
Net gain (loss) on asset divestitures/impairment	(2,907)	4,691	32,332
Income before income taxes and equity in earnings of affiliates	38,594	138,048	229,820
Depreciation and amortization	126,220	125,784	132,925
Electronic Monitoring and Supervision Services
Segment Reporting Information [Line Items]
Revenues	332,826	425,879
Reentry Services
Segment Reporting Information [Line Items]
Revenues	277,566	275,102
Operating Segments
Segment Reporting Information [Line Items]
Revenues	2,423,702	2,413,167	2,376,727
Operating Expenses [Abstract]
Labor and Related Taxes	1,225,774	1,151,057	1,053,357
Medical Services and Supplies	63,585	71,483	67,327
Other Segment Items	611,340	647,472	675,126
Operating Income from Segments	523,003	543,155	580,917
Unallocated amounts:
Capital Expenditures	78,691	73,002	90,026
Operating Segments | U.S. Secure Services
Segment Reporting Information [Line Items]
Revenues	1,604,386	1,518,292	1,437,831
Operating Expenses [Abstract]
Labor and Related Taxes	885,863	824,893	755,290
Medical Services and Supplies	63,585	71,483	67,327
Other Segment Items	352,021	351,927	334,396
Operating Income from Segments	302,917	269,989	280,818
Unallocated amounts:
Capital Expenditures	46,837	48,270	52,613
Operating Segments | Electronic Monitoring and Supervision Services
Segment Reporting Information [Line Items]
Revenues	332,826	425,879	496,268
Operating Expenses [Abstract]
Labor and Related Taxes	91,262	96,510	95,157
Medical Services and Supplies	0	0	0
Other Segment Items	94,209	116,466	162,917
Operating Income from Segments	147,355	212,903	238,194
Unallocated amounts:
Capital Expenditures	24,190	17,434	31,354
Operating Segments | Reentry Services
Segment Reporting Information [Line Items]
Revenues	277,566	275,102	255,428
Operating Expenses [Abstract]
Labor and Related Taxes	126,610	125,626	113,649
Medical Services and Supplies	0	0	0
Other Segment Items	92,659	100,741	98,856
Operating Income from Segments	58,297	48,735	42,923
Unallocated amounts:
Capital Expenditures	6,206	4,403	3,181
Operating Segments | International Services
Segment Reporting Information [Line Items]
Revenues	208,924	193,894	187,200
Operating Expenses [Abstract]
Labor and Related Taxes	122,039	104,028	89,261
Medical Services and Supplies	0	0	0
Other Segment Items	72,451	78,338	78,957
Operating Income from Segments	14,434	11,528	18,982
Unallocated amounts:
Capital Expenditures	1,458	2,895	2,878
Segment Reconciling Items
Unallocated amounts:
Depreciation and amortization	126,220	125,784	132,925
Segment Reconciling Items | U.S. Secure Services
Unallocated amounts:
Depreciation and amortization	85,685	78,917	80,600
Segment Reconciling Items | Electronic Monitoring and Supervision Services
Unallocated amounts:
Depreciation and amortization	24,523	28,053	31,838
Segment Reconciling Items | Reentry Services
Unallocated amounts:
Depreciation and amortization	13,619	16,588	18,416
Segment Reconciling Items | International Services
Unallocated amounts:
Depreciation and amortization	$ 2,393	$ 2,226	$ 2,071