Schedule II - Schedule of Valuation and Qualifying Accounts (Parenthetical) (Detail) - USD ($) $ in Thousands		12 Months Ended
	Jan. 08, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Increase in real estate impairment reserves		$ 170,600		$ 19,000
Equity investment impairments reserve related to disposals			$ 6,000
Increase in accounts receivable and other reserves		500	8,000	23,900
Decrease in accounts receivable and other reserves		11,700	38,700
Increase (decrease) in valuation allowances				800
Tax valuation allowances recorded as part of purchase price allocation			7,340	22,944
Valuation allowances recorded as part of the purchase price allocation of the Circle Transaction	$ 14,500
Increase (decrease) in real estate impairment reserves related to disposals		(2,900)	(22,400)	(40,500)
Credit loss recovery related to loan paydowns			1,900	2,900
Increase in credit loss reserves on financing-type receivables		114,000	41,700	3,300
Decrease in credit loss reserves on financing-type receivables		26,400
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
Accounting Standards Update 2016-13
Cumulative effect of change in accounting principle					$ 8,400
Valuation Allowance, Deferred Tax Asset [Member]
Increase (decrease) in valuation allowances		$ 9,800	$ 20,000	$ 11,900