v3.26.1
Real Estate and Other Activities - Schedule of Concentrations of Credit Risk (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Business Acquisition [Line Items]          
Total Assets $ 14,747,740   $ 14,747,740   $ 15,001,775
Total Revenues $ 259,283 $ 240,359 $ 511,348 $ 464,158  
Minimum [Member] | Customer Concentration Risk [Member]          
Business Acquisition [Line Items]          
Maximum percentage of entity's assets invested on single property 2.00%   2.00%    
Total Gross Assets [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets $ 14,747,740   $ 14,747,740   $ 15,001,775
Percentage of concentration risk     100.00%   100.00%
Total Gross Assets [Member] | Geographic Concentration [Member]          
Business Acquisition [Line Items]          
Total Assets 14,747,740   $ 14,747,740   $ 15,001,775
Percentage of concentration risk     100.00%   100.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Texas [Member]          
Business Acquisition [Line Items]          
Total Assets 1,379,139   $ 1,379,139   $ 1,427,391
Percentage of concentration risk     9.40%   9.50%
Total Gross Assets [Member] | Geographic Concentration [Member] | California [Member]          
Business Acquisition [Line Items]          
Total Assets 1,025,370   $ 1,025,370   $ 977,890
Percentage of concentration risk     7.00%   6.50%
Total Gross Assets [Member] | Geographic Concentration [Member] | Florida [Member]          
Business Acquisition [Line Items]          
Total Assets 903,251   $ 903,251   $ 834,940
Percentage of concentration risk     6.10%   5.60%
Total Gross Assets [Member] | Geographic Concentration [Member] | Ohio [Member]          
Business Acquisition [Line Items]          
Total Assets 303,695   $ 303,695   $ 330,189
Percentage of concentration risk     2.10%   2.20%
Total Gross Assets [Member] | Geographic Concentration [Member] | Arizona [Member]          
Business Acquisition [Line Items]          
Total Assets 325,519   $ 325,519   $ 328,873
Percentage of concentration risk     2.20%   2.20%
Total Gross Assets [Member] | Geographic Concentration [Member] | All Other States [Member]          
Business Acquisition [Line Items]          
Total Assets 2,467,712   $ 2,467,712   $ 2,480,182
Percentage of concentration risk     16.70%   16.50%
Total Gross Assets [Member] | Geographic Concentration [Member] | Other Domestic Assets [Member]          
Business Acquisition [Line Items]          
Total Assets 962,378   $ 962,378   $ 1,072,900
Percentage of concentration risk     6.50%   7.20%
Total Gross Assets [Member] | Geographic Concentration [Member] | Total U.S. [Member]          
Business Acquisition [Line Items]          
Total Assets 7,367,064   $ 7,367,064   $ 7,452,365
Percentage of concentration risk     50.00%   49.70%
Total Gross Assets [Member] | Geographic Concentration [Member] | United Kingdom [Member]          
Business Acquisition [Line Items]          
Total Assets 4,069,802   $ 4,069,802   $ 4,184,188
Percentage of concentration risk     27.60%   27.90%
Total Gross Assets [Member] | Geographic Concentration [Member] | Switzerland [Member]          
Business Acquisition [Line Items]          
Total Assets 860,136   $ 860,136   $ 873,703
Percentage of concentration risk     5.80%   5.80%
Total Gross Assets [Member] | Geographic Concentration [Member] | Germany [Member]          
Business Acquisition [Line Items]          
Total Assets 745,882   $ 745,882   $ 751,806
Percentage of concentration risk     5.10%   5.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | Spain [Member]          
Business Acquisition [Line Items]          
Total Assets 309,269   $ 309,269   $ 302,323
Percentage of concentration risk     2.10%   2.00%
Total Gross Assets [Member] | Geographic Concentration [Member] | All Other Countries [Member]          
Business Acquisition [Line Items]          
Total Assets 496,427   $ 496,427   $ 504,729
Percentage of concentration risk     3.30%   3.40%
Total Gross Assets [Member] | Geographic Concentration [Member] | Other International Assets [Member]          
Business Acquisition [Line Items]          
Total Assets 899,160   $ 899,160   $ 932,661
Percentage of concentration risk     6.10%   6.20%
Total Gross Assets [Member] | Geographic Concentration [Member] | Total International [Member]          
Business Acquisition [Line Items]          
Total Assets 7,380,676   $ 7,380,676   $ 7,549,410
Percentage of concentration risk     50.00%   50.30%
Total Gross Assets [Member] | Customer Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 14,747,740   $ 14,747,740   $ 15,001,775
Percentage of concentration risk     100.00%   100.00%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | General Acute Care Hospitals [Member]          
Business Acquisition [Line Items]          
Total Assets 8,745,376   $ 8,745,376   $ 8,769,909
Percentage of concentration risk     59.30%   58.50%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Behavioral Health Facilities [Member]          
Business Acquisition [Line Items]          
Total Assets 2,393,777   $ 2,393,777   $ 2,445,418
Percentage of concentration risk     16.20%   16.30%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Post Acute Care Facilities [Member]          
Business Acquisition [Line Items]          
Total Assets 1,651,316   $ 1,651,316   $ 1,671,616
Percentage of concentration risk     11.20%   11.10%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Freestanding ER/Urgent Care Facilities [Member]          
Business Acquisition [Line Items]          
Total Assets 95,733   $ 95,733   $ 109,271
Percentage of concentration risk     0.70%   0.70%
Total Gross Assets [Member] | Customer Concentration Risk [Member] | Other Assets By Facility [Member]          
Business Acquisition [Line Items]          
Total Assets 1,861,538   $ 1,861,538   $ 2,005,561
Percentage of concentration risk     12.60%   13.40%
Total Gross Assets [Member] | Circle [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 2,060,659   $ 2,060,659   $ 2,121,848
Percentage of concentration risk     14.00%   14.10%
Total Gross Assets [Member] | Priory [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 1,269,486   $ 1,269,486   $ 1,301,888
Percentage of concentration risk     8.60%   8.70%
Total Gross Assets [Member] | HSA [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 1,258,884   $ 1,258,884   $ 1,200,996
Percentage of concentration risk     8.50%   8.00%
Total Gross Assets [Member] | Swiss Medical Network [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 860,136   $ 860,136   $ 873,703
Percentage of concentration risk     5.80%   5.80%
Total Gross Assets [Member] | Lifepoint Behavioral [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 797,333   $ 797,333   $ 809,492
Percentage of concentration risk     5.40%   5.40%
Total Gross Assets [Member] | Other Operators [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets 6,639,704   $ 6,639,704   $ 6,688,287
Percentage of concentration risk     45.10%   44.60%
Total Gross Assets [Member] | Other Assets by Operator [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Total Assets $ 1,861,538   $ 1,861,538   $ 2,005,561
Percentage of concentration risk     12.60%   13.40%
Revenue [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 100.00% 100.00% 100.00% 100.00%  
Total Revenues $ 259,283 $ 240,359 $ 511,348 $ 464,158  
Revenue [Member] | Geographic Concentration [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 100.00% 100.00%      
Total Revenues $ 259,283 $ 240,359      
Revenue [Member] | Geographic Concentration [Member] | Total U.S. [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 55.10% 52.40%      
Total Revenues $ 142,846 $ 126,067      
Revenue [Member] | Geographic Concentration [Member] | United Kingdom [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 37.00% 39.10%      
Total Revenues $ 95,943 $ 93,924      
Revenue [Member] | Geographic Concentration [Member] | All Other Countries [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 7.90% 8.50%      
Total Revenues $ 20,494 $ 20,368      
Revenue [Member] | Customer Concentration Risk [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 100.00% 100.00%      
Total Revenues $ 259,283 $ 240,359      
Revenue [Member] | Customer Concentration Risk [Member] | General Acute Care Hospitals [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 62.70% 61.40%      
Total Revenues $ 162,523 $ 147,648      
Revenue [Member] | Customer Concentration Risk [Member] | Behavioral Health Facilities [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 21.20% 22.30%      
Total Revenues $ 55,090 $ 53,545      
Revenue [Member] | Customer Concentration Risk [Member] | Post Acute Care Facilities [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 15.20% 15.50%      
Total Revenues $ 39,359 $ 37,176      
Revenue [Member] | Customer Concentration Risk [Member] | Freestanding ER/Urgent Care Facilities [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 0.90% 0.80%      
Total Revenues $ 2,311 $ 1,990      
Revenue [Member] | Circle [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 21.10% 22.40% 21.40% 22.50%  
Total Revenues $ 54,699 $ 53,725 $ 109,660 $ 104,436  
Revenue [Member] | Priory [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 10.60% 11.00% 10.70% 11.10%  
Total Revenues $ 27,369 $ 26,456 $ 54,865 $ 51,397  
Revenue [Member] | Other Operators [Member] | Operator Concentration Risk [Member]          
Business Acquisition [Line Items]          
Percentage of concentration risk 68.30% 66.60% 67.90% 66.40%  
Total Revenues $ 177,215 $ 160,178 $ 346,823 $ 308,325