Business Segments and Geographic Information - Sources of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Revenues:
Revenues	$ 604,647	$ 605,672	$ 605,672
Secure Services
Revenues:
Revenues	456,558		451,058
Electronic Monitoring and Supervision Services
Revenues:
Revenues	77,713		86,784
Reentry Services
Revenues:
Revenues	$ 70,376		$ 67,830