Real Estate Transactions - Additional Information (Detail) $ in Thousands		3 Months Ended			12 Months Ended
	Jul. 25, 2022 USD ($)	Mar. 31, 2023 USD ($) Bed Facility	Sep. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) Facility	May 02, 2023 USD ($)
Facility Activations Developments And Closures [Line Items]
Net proceeds from sale of assets		$ 59		$ 9,316
Gain on sale of properties					$ 7,600
Net proceeds after the repayment of debt					$ 18,100
Asset impairments			$ 3,500
Number of properties sold | Facility					5
Operating Costs And Expenses		$ 354,537		344,629
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 Costs And Expenses		$ 2,900		1,900
Idle Facilities | West Tennessee Detention Facility And the Midwest Regional Reception Center [Member]
Facility Activations Developments And Closures [Line Items]
Operating Costs And Expenses				$ 3,500
Roth Hall Residential Reentry Center and the Walker Hall Residential Reentry Center [Member] | Subsequent Event
Facility Activations Developments And Closures [Line Items]
Net sales proceeds						$ 5,800
Community
Facility Activations Developments And Closures [Line Items]
Number of beds at the center | Bed		5,000
Community | Idle Facilities
Facility Activations Developments And Closures [Line Items]
Number of facility | Facility		2
Number of beds at the facility | Bed		450
Net carrying value		$ 3,500
Safety
Facility Activations Developments And Closures [Line Items]
Number of beds at the facility | Bed		66,000
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
Net carrying value		$ 2,900
Purchase & Sale Agreement | Safety | McRae Correctional Facility
Facility Activations Developments And Closures [Line Items]
Gross sale price	$ 130,000
Net proceeds from sale of assets	129,700
Gain on sale of properties	$ 77,500
Assets Held for Sale/Community [Member] | Community
Facility Activations Developments And Closures [Line Items]
Net book value of property and equipment		$ 1,200