Real Estate Transactions - Additional Information (Detail) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($) Facility Bed	Mar. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) Property
Facility Activations Developments And Closures [Line Items]
Number of real estate assets held for sale | Property				2
Net book value of property and equipment				$ 7,000
Aggregate net sales proceeds	$ 9,300
Net gain on sale of properties	2,300			$ 38,700
Number of properties sold | Property				5
Net proceeds after the repayment of debt				$ 125,000
Operating Expense	$ 344,629	$ 332,884
Safety
Facility Activations Developments And Closures [Line Items]
Number of beds at the facility | Bed	68,000
Community
Facility Activations Developments And Closures [Line Items]
Number of beds at the center | Bed	5,000
Idled Correctional Facilities
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility	7
Idled Non-Core Facilities | Safety
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility	1
Number of beds at the facility | Bed	240
Net carrying value	$ 3,100
Idle Facilities
Facility Activations Developments And Closures [Line Items]
Operating Expense	2,000	$ 2,000
Idle Facilities | West Tennessee Detention Facility and Leavenworth Detention Center
Facility Activations Developments And Closures [Line Items]
Operating Expense	$ 3,500
Idle Facilities | Community
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility	3
Net carrying value	$ 8,700
Number of beds at the center | Bed	650
GRES
Facility Activations Developments And Closures [Line Items]
Percentage of voting control	100.00%
Increase to stockholders' equity upon termination of partnership			$ 17,400