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Commitments and Contingencies - Summary of Idled Facilities and Respective Carrying Values (Details) - Property and Equipment, Net $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($) bed
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	9,480
Net Carrying Value | $	$ 225,538
D. Ray James Correctional Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	1,900
Date Idled	2021
Net Carrying Value | $	$ 53,470
Moshannon Valley Correctional Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	1,878
Date Idled	2021
Net Carrying Value | $	$ 55,979
Rivers Correctional Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	1,450
Date Idled	2021
Net Carrying Value | $	$ 40,292
Queens Detention Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	222
Date Idled	2021
Net Carrying Value | $	$ 16,470
McFarland Female Community Reentry Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	300
Date Idled	2020
Net Carrying Value | $	$ 11,798
Perry County Correctional Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	690
Date Idled	2015
Net Carrying Value | $	$ 11,356
Great Plains Correctional Facility | Secure Services
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	1,940
Date Idled	2021
Net Carrying Value | $	$ 10,457
Coleman Hall | GEO Care
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	350
Date Idled	2017
Net Carrying Value | $	$ 8,326
Cheyenne Mountain Recovery Center | GEO Care
Commitments and Contingencies [Line Items]
Number of beds in detention facility | bed	750
Date Idled	2020
Net Carrying Value | $	$ 17,390

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