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Real Estate and Other Activities - Other Investment Activities - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2022
Jun. 30, 2021
Mar. 14, 2022
Jan. 08, 2021
Business Acquisition [Line Items]          
Passive equity interest       50.00%  
COVID-19 Pandemic [Member]          
Business Acquisition [Line Items]          
Favorable non-cash fair value adjustment on investment   $ 9.0 $ 1.9    
Aevis Victoria SA [Member]          
Business Acquisition [Line Items]          
Ownership interest in joint venture under the cost method 5.00% 5.00%      
Steward Health Care System LLC [Member]          
Business Acquisition [Line Items]          
Passive equity interest         9.90%
Distribution on equity investment     $ 11.0    
Secured loan amount $ 150.0 $ 150.0      
Secured loan period 5 years