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Share-Based Compensation (Schedule Of Share-Based Compensation Information) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-Based Compensation [Abstract]        
Expense relating to share grants $ 926,000 $ 877,000 $ 1,749,000 $ 1,724,000
Amounts capitalized (25,000) (56,000) (44,000) (113,000)
Expense relating to share-based compensation, net $ 901,000 $ 821,000 $ 1,705,000 $ 1,611,000