Business Segments and Geographic Information - Schedule of Segment Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 3,632,465	$ 3,632,080
Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,405,692	3,397,511
U.S. Secure Services | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	2,367,272	2,356,105
Electronic Monitoring and Supervision Services | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	507,221	504,782
Reentry Services | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	459,611	465,014
International Services | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 71,588	$ 71,610