Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 38,306	$ 19,542
Other comprehensive income, net of tax:
Foreign currency translation adjustments	1,542	1,430
Change in marketable securities, net of tax (benefit) provision of $(82) and $63, respectively	(310)	239
Pension liability adjustment, net of tax provision (benefit) of $2 and $(13), respectively	6	(49)
Change in fair value of derivative instrument classified as cash flow hedge, net of tax provision (benefit) of $13 and $(182), respectively	50	(684)
Total other comprehensive income, net of tax	1,288	936
Total comprehensive income	39,594	20,478
Comprehensive loss attributable to noncontrolling interests	9	28
Comprehensive income attributable to The GEO Group, Inc.	$ 39,603	$ 20,506