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Share-Based Compensation (Schedule Of Share-Based Compensation Information) (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share-Based Compensation [Abstract]        
Expense relating to share grants $ 877,000 $ 942,000 $ 1,724,000 $ 1,776,000
Amounts capitalized (56,000) (115,000) (113,000) (228,000)
Total charged to operations $ 821,000 $ 827,000 $ 1,611,000 $ 1,548,000