Schedule II - Schedule of Valuation and Qualifying Accounts (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Increase in accounts receivable reserves	$ 261,000
Increase in straight-line rent receivable reserves	259,000
Increase (decrease) in real estate impairment reserves	89,000	$ 170,600
Write-off of previously reserved accounts receivable	11,000
Equity investment impairments reserves related to disposals			$ 6,000
Increase in accounts receivable and other reserves		500	8,000
Decrease in accounts receivable and other reserves		11,700	38,700
Tax valuation allowances recorded as part of purchase price allocation			7,340
Increase (decrease) in real estate impairment reserves related to disposals	(170,000)	(2,900)	(22,400)
Credit loss recovery related to loan paydowns			1,900
Increase in credit loss reserves on financing-type receivables	10,000	114,000	41,700
Decrease in credit loss reserves on financing-type receivables	35,000	26,400
Increase in equity investment impairments	90,000
Recovery of previously reserved interest	50,000
Watsonville, California [Member]
Provision (recovery) for credit loss		15,000
Priory Group [Member]
Tax valuation allowances recorded as part of purchase price allocation			7,300
Valuation Allowance, Deferred Tax Asset [Member]
Increase (decrease) in valuation allowances	$ 47,000	$ 9,800	$ 20,000