Real Estate and Other Activities - Other Leasing Activity - Additional Information (Detail) $ in Millions		3 Months Ended
	Jul. 24, 2020 USD ($) Property	Sep. 30, 2020 USD ($)	Dec. 23, 2021 Property
ScionHealth Master Lease [Member]
Business Acquisition [Line Items]
Number of properties			8
LifePoint Master Lease [Member]
Business Acquisition [Line Items]
Number of properties			9
Methodist [Member] | Texas [Member]
Business Acquisition [Line Items]
Total investments | $	$ 30.0
Number of re-leased properties	5
Straight-line rent and other write-off, net of tax | $		$ 1.5