Schedule III - Real Estate Assets and Accumulated Depreciation Summary of Transactions (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
SEC Schedule III, Real Estate Assets and Accumulated Depreciation [Line Items]
Investment in Real Estate, balance at beginning of period	$ 3,288,714		$ 3,352,942	$ 3,595,278
Additions through capital expenditures	46,773		41,449	27,217
Asset impairments	0		(4,241)	(3,335)
Disposals/Other	(12,076)		(101,436)	(266,218)
Investment in Real Estate, balance at end of period	3,323,411	[1]	3,288,714	3,352,942
Accumulated Depreciation, balance at beginning of period	(1,244,044)		(1,194,051)	(1,128,563)
Depreciation	(82,780)		(81,937)	(81,693)
Disposals/Other	2,243		31,944	16,205
Accumulated Depreciation, balance at end of period	$ (1,324,581)	[2]	$ (1,244,044)	$ (1,194,051)

[1] The aggregate cost of properties for federal income tax purposes is approximately $3.7 billion at December 31, 2023.

[2] Depreciation is calculated using estimated useful lives of depreciable assets up to 50 years for prison facilities.