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Related Party Transactions (Summary of Related Party Amounts Due) (Parenthetical) (Details) - Related Party [Member] - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Related Party Transaction [Line Items]    
Related party amounts due $ 8,556,000 $ 7,328,000
WHLR [Member]    
Related Party Transaction [Line Items]    
Related party amounts due 8,556,000 7,328,000
WHLR [Member] | Cost Sharing Agreement Allocations [Member]    
Related Party Transaction [Line Items]    
Related party amounts due $ 322,000 $ 0