Real Estate and Related Assets - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) Property Facility	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Number of real estate properties owned | Facility	68
Number of properties held for lease to government agencies | Property	6
Number of facilities owned by government partners, managed | Facility	4
Depreciation expense	$ 126,800	$ 126,700	$ 132,900
Number of facilities accounting for as service concession arrangements | Facility	4
Other real estate assets	$ 201,561	208,181
Contract Cost
Property, Plant and Equipment [Line Items]
Other real estate assets	134,800	136,300
Service Contract
Property, Plant and Equipment [Line Items]
Other real estate assets	$ 66,800	$ 71,900