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Share-Based Compensation (Schedule Of Share-Based Compensation Information) (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Share Based Compensation [Abstract]        
Expense relating to share grants $ 859,000 $ 750,000 $ 2,312,000 $ 2,499,000
Amounts capitalized (54,000) (23,000) (167,000) (67,000)
Total charged to operations $ 805,000 $ 727,000 2,145,000 $ 2,432,000
Expense reduction related to forfeiture of restricted shares     $ 267,000