Real Estate Transactions - Additional Information (Detail)		1 Months Ended	3 Months Ended					6 Months Ended		12 Months Ended
	Jul. 25, 2022 USD ($)	Jul. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) Bed	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Facility Bed	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) Property
Facility Activations Developments And Closures [Line Items]
Net book value of property and equipment										$ 7,000,000.0
Gain on sale of properties				$ 1,100,000	$ 2,300,000					$ 38,700,000
Net proceeds from sale of assets				1,500,000				$ 10,957,000	$ 320,653,000
Net book value of land				300,000				300,000
Number of real estate assets held for sale | Property										2
Aggregate net sales proceeds					9,300,000
Number of properties sold | Property										5
Net proceeds after the repayment of debt										$ 125,000,000.0
Operating Expense				349,000,000			$ 333,070,000	$ 693,629,000	665,954,000
GRES
Facility Activations Developments And Closures [Line Items]
Percentage of voting control						100.00%
Increase to stockholders' equity upon termination of partnership						$ 17,400,000
Idled Correctional Facilities
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility								7
Idle Facilities
Facility Activations Developments And Closures [Line Items]
Operating Expense				$ 2,700,000			$ 1,900,000	$ 4,700,000	$ 4,000,000.0
Idle Facilities | West Tennessee Detention Facility and Leavenworth Detention Center
Facility Activations Developments And Closures [Line Items]
Operating Expense					$ 3,500,000
Safety
Facility Activations Developments And Closures [Line Items]
Number of beds at the facility | Bed				68,000				68,000
Safety | Idled Non-Core Facilities
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility								1
Number of beds at the facility | Bed				240				240
Net carrying value				$ 3,000,000.0				$ 3,000,000.0
Safety | Purchase & Sale Agreement | McRae Correctional Facility
Facility Activations Developments And Closures [Line Items]
Net book value of property and equipment				52,800,000				52,800,000
CoreCivic Properties | Stockton Female Community Corrections Facility and Long Beach Community Corrections Center
Facility Activations Developments And Closures [Line Items]
Net book value of property and equipment				$ 8,500,000				$ 8,500,000
Community
Facility Activations Developments And Closures [Line Items]
Number of beds at the center | Bed				5,000				5,000
Community | Idle Facilities
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility								3
Net carrying value				$ 8,700,000				$ 8,700,000
Number of beds at the center | Bed				650				650
Forecast
Facility Activations Developments And Closures [Line Items]
Gain on sale of properties			$ 4,200,000
Net proceeds from sale of assets		$ 4,800,000
Forecast | Safety | Purchase & Sale Agreement | Minimum
Facility Activations Developments And Closures [Line Items]
Gain on sale of properties			75,000,000.0
Forecast | Safety | Purchase & Sale Agreement | Maximum
Facility Activations Developments And Closures [Line Items]
Gain on sale of properties			80,000,000.0
Forecast | CoreCivic Properties
Facility Activations Developments And Closures [Line Items]
Gain on sale of properties			$ 2,300,000
Subsequent Event | Safety | Purchase & Sale Agreement | McRae Correctional Facility
Facility Activations Developments And Closures [Line Items]
Gross sale price	$ 130,000,000.0
Subsequent Event | CoreCivic Properties | Stockton Female Community Corrections Facility and Long Beach Community Corrections Center
Facility Activations Developments And Closures [Line Items]
Net proceeds from sale of assets		$ 10,900,000