Real Estate and Other Activities - Other Disposal Transactions - Additional Information (Detail) $ in Millions		3 Months Ended	12 Months Ended
	May 18, 2023 Facility	Dec. 31, 2021 USD ($) Operator	Dec. 31, 2022 USD ($) Facility	Dec. 31, 2021 USD ($) Facility Operator
Business Acquisition [Line Items]
Number of operations sold | Operator		3		3
Proceeds from sale of facilities		$ 54.5	$ 522.0	$ 246.0
Gain (loss) on real estate dispositions		$ 40.0	$ 100.0	$ 52.5
Number of facilities sold | Facility	7		15	16