Quarterly report pursuant to Section 13 or 15(d)

Noncontrolling Interests In Subsidiaries (Schedule Of Activity Of Noncontrolling Interests) (Details)

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Noncontrolling Interests In Subsidiaries (Schedule Of Activity Of Noncontrolling Interests) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Noncontrolling Interest [Line Items]    
Balance, value $ 192,428  
Common unit distributions (2,260)  
Redeemable noncontrolling interest (2,799) $ (792)
Redemption of common units for common stock, value  
Other comprehensive income (loss) 5,145  
Rebalancing of ownership percentage between parent and subsidiaries  
Balance, value 192,820  
Noncontrolling Interests In Subsidiaries [Member]    
Noncontrolling Interest [Line Items]    
Balance, value 192,428 199,516
Net income 7,652 2,850
Common unit distributions (2,260) (1,647)
Redeemable noncontrolling interest (3,112) (1,930)
Decrease in noncontrolling interest in consolidated joint ventures (14)
Redemption of common units for common stock, value (3,690) (2,531)
Stock compensation 2,015 644
Cancellation of restricted shares (177)
Other comprehensive income (loss) 524 127
Rebalancing of ownership percentage between parent and subsidiaries (560) (443)
Balance, value $ 192,820 $ 196,572