Real Estate and Other Activities - Schedule of Concentrations of Credit Risk - (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Total Assets		$ 18,304,844		$ 19,658,000
Operator Concentration Risk [Member] | Total Gross Assets [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 18,304,844		$ 19,658,000
Percentage of concentration risk		100.00%		100.00%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Other Assets [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		11.00%	[2]	8.20%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Steward [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 3,518,537		$ 4,762,673
Percentage of concentration risk		19.20%		24.20%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Circle [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 2,119,392		$ 2,062,474
Percentage of concentration risk		11.60%		10.50%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Prospect [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 1,092,974		$ 1,483,599
Percentage of concentration risk		6.00%		7.50%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Priory [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 1,391,005		$ 1,290,213
Percentage of concentration risk		7.60%		6.60%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Lifepoint Behavioral [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 813,527		$ 985,959
Percentage of concentration risk		4.40%		5.00%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Other Operators [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 7,352,012		$ 7,461,923
Percentage of concentration risk		40.20%		38.00%
Operator Concentration Risk [Member] | Total Gross Assets [Member] | Other Assets by Operator [Member]
Business Acquisition [Line Items]
Total Assets	[1]	$ 2,017,397		$ 1,611,159
Geographic Concentration Risk [Member] | Total Gross Assets [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 18,304,844		$ 19,658,000
Percentage of concentration risk	[3]	100.00%		100.00%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Texas [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 1,891,482		$ 1,967,948
Percentage of concentration risk	[3]	10.30%		10.00%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Florida [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 1,348,210		$ 1,324,555
Percentage of concentration risk	[3]	7.40%		6.80%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | California [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 1,252,674		$ 1,450,112
Percentage of concentration risk	[3]	6.80%		7.40%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Massachusetts [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 732,550		$ 761,694
Percentage of concentration risk	[3]	4.00%		3.90%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Utah [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 824,048		$ 1,224,484
Percentage of concentration risk	[3]	4.50%		6.20%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | All Other States [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 3,726,145		$ 4,245,306
Percentage of concentration risk	[3]	20.40%		21.60%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Other Domestic Assets [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 1,397,170		$ 1,028,946
Percentage of concentration risk	[3]	7.60%		5.20%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Total U.S. [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 11,172,279		$ 12,003,045
Percentage of concentration risk	[3]	61.00%		61.10%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | United Kingdom [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 4,261,944		$ 4,083,244
Percentage of concentration risk	[3]	23.30%		20.80%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Germany [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 734,630		$ 664,900
Percentage of concentration risk	[3]	4.00%		3.40%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Switzerland [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 735,891		$ 748,947
Percentage of concentration risk	[3]	4.00%		3.80%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Spain [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 252,529		$ 222,316
Percentage of concentration risk	[3]	1.40%		1.10%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Finland [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 218,322		$ 224,152
Percentage of concentration risk	[3]	1.20%		1.10%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | All Other Countries [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 309,022		$ 1,129,183
Percentage of concentration risk	[3]	1.70%		5.70%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Other International Assets [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 620,227		$ 582,213
Percentage of concentration risk	[3]	3.40%		3.00%
Geographic Concentration Risk [Member] | Total Gross Assets [Member] | Total International [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 7,132,565		$ 7,654,955
Percentage of concentration risk	[3]	39.00%		38.90%
Geographic Concentration Risk [Member] | Revenue [Member] | Steward [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%		10.00%	10.00%
Geographic Concentration Risk [Member] | Revenue [Member] | Circle [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%		10.00%	10.00%
Geographic Concentration Risk [Member] | Revenue [Member] | Prospect [Member]
Business Acquisition [Line Items]
Percentage of concentration risk		10.00%		10.00%	10.00%
Customer Concentration Risk [Member] | Total Gross Assets [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 18,304,844		$ 19,658,000
Percentage of concentration risk	[3]	100.00%		100.00%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Other Assets [Member]
Business Acquisition [Line Items]
Percentage of concentration risk	[3]	11.00%		8.20%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | General Acute Care Hospitals [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 11,764,151		$ 13,386,376
Percentage of concentration risk	[3]	64.30%		68.10%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Behavioral Health Facilities [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 2,576,983		$ 2,727,326
Percentage of concentration risk	[3]	14.10%		13.90%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Inpatient Rehabilitation Hospital [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 1,445,399		$ 1,418,603
Percentage of concentration risk	[3]	7.90%		7.20%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Long-term Acute Care Hospital [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 270,849		$ 277,772
Percentage of concentration risk	[3]	1.50%		1.40%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Freestanding E R Urgent Care Facilities [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 230,065		$ 236,764
Percentage of concentration risk	[3]	1.20%		1.20%
Customer Concentration Risk [Member] | Total Gross Assets [Member] | Other Assets By Facility [Member]
Business Acquisition [Line Items]
Total Assets	[3]	$ 2,017,397		$ 1,611,159

[1] Total assets by operator are generally comprised of real estate assets, mortgage loans, investments in unconsolidated real estate joint ventures, investments in unconsolidated operating entities, and other loans.

[2] Includes our investment in PHP Holdings of $700 million as part of the Prospect Transaction as further described in this same Note 3.

[3] 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.