Real Estate and Other Activities - Concentration of Credit Risks and Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transactions [Member]
Business Acquisition [Line Items]
Revenues earned from tenants		$ 83.0	$ 135.5	$ 63.9
Total Gross Assets [Member] | Customer Concentration Risk [Member]
Business Acquisition [Line Items]
Maximum percentage of entity's assets invested on single property		2.00%
Percentage of concentration risk	[1]	100.00%	100.00%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Behavioral health facilities
Business Acquisition [Line Items]
Percentage of concentration risk	[1]	14.10%	13.90%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Long Term Acute Care Hospital
Business Acquisition [Line Items]
Percentage of concentration risk	[1]	1.50%	1.40%
Total Gross Assets [Member] | Operator Concentration Risk [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		100.00%	100.00%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Steward Health Care System LLC [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		19.20%	24.20%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Circle [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		11.60%	10.50%
Total Gross Assets [Member] | Operator Concentration Risk [Member] | Prospect [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		6.00%	7.50%
Total Gross Assets [Member] | Geographic Concentration [Member]
Business Acquisition [Line Items]
Percentage of concentration risk	[1]	100.00%	100.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | U.S. [Member]
Business Acquisition [Line Items]
Percentage of concentration risk	[1]	61.00%	61.10%
Revenue [Member] | Geographic Concentration [Member] | Steward Health Care System LLC [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%	10.00%	10.00%
Revenue [Member] | Geographic Concentration [Member] | Circle [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%	10.00%	10.00%
Revenue [Member] | Geographic Concentration [Member] | Prospect [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%	10.00%	10.00%

[1] For geographic and facility type concentration metrics in the tables above, we allocate our investments in operating entities pro rata based on the gross book value of the real estate. Such pro rata allocations are subject to change from period to period.