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Related Party Transactions (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Limited Liability Company, Senior Housing and Healthcare Sectors      
Related Party Transactions      
Equity method investee, ownership percentage 30.00%    
Board of Directors      
Related Party Transactions      
Legal fees $ 9,400,000 $ 9,400,000 $ 6,600,000
Speaking engagement - fee 30,000    
Low Income Housing Tax Credit Syndication Business      
Related Party Transactions      
Gain (loss) on sales 0 $ 0 $ 0
Board Member And Executive      
Related Party Transactions      
Payment for charter flights $ 62,000