Business Segments and Geographic Information - Schedule of Operating and Reporting Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Revenues	$ 605,017	$ 610,667
Operating income from segments:
Operating income from segments	110,368	121,201
General and Administrative Expenses	(53,782)	(46,424)
Operating Income	56,586	74,777
Operating Segments
Revenues:
Revenues	605,017	610,667
Operating income from segments:
Operating income from segments	110,368	121,201
Operating Segments | GEO Secure Services
Revenues:
Revenues	398,109	390,510
Operating income from segments:
Operating income from segments	74,009	76,924
Operating Segments | GEO Care
Revenues:
Revenues	144,463	153,843
Operating income from segments:
Operating income from segments	30,699	38,538
Operating Segments | International Services
Revenues:
Revenues	56,850	64,224
Operating income from segments:
Operating income from segments	5,650	5,739
Operating Segments | Facility Construction and Design
Revenues:
Revenues	5,595	2,090
Operating income from segments:
Operating income from segments	10
Segment Reconciling Items
Operating income from segments:
General and Administrative Expenses	$ (53,782)	$ (46,424)