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Share-Based Compensation (Schedule of Share-Based Compensation Information) (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share Based Compensation [Abstract]    
Expense relating to share/unit grants $ 1,077,000 $ 1,097,000
Amounts capitalized (63,000) (82,000)
Total charged to operations $ 1,014,000 $ 1,015,000