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Stock-Based Compensation (Summary of Compensation Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense $ 5,810 $ 3,313 $ 2,146
Restricted Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense 2,599 3,517 3,006
Restricted Stock | Advisory Services Fee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense 2,195 3,028 2,672
Restricted Stock | Management fees      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense 26 56 133
Restricted Stock | Corporate General and Administrative      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense 126 111 71
Restricted Stock | Corporate General and Administrative | Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense 252 322 130
Performance shares | Advisory Services Fee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Allocated compensation expense $ 2,876 $ 3,374 $ 2,695