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Fair Value (Reconciliation Of Level 3 Input For Financial Instruments Measured On Recurring Basis) (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Measurements, Recurring [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Other Equity Securities [Member]        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, beginning $ 821 $ 744 $ 769 $ 776
Included in earnings - realized 0 0 0 0
Included in other comprehensive income (42) 13 10 (19)
Periodic, sales, issuances and settlements, other 0 0 0 0
Periodic settlement of fair value swap 0 0 0 0
Balance, ending 779 757 779 757
Fair Value Swap [Member]        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Balance, Beginning of Period (226) (226) (226) (226)
Included in earnings - unrealized 0 0 0 0
Included in other comprehensive income 0 0 0 0
Purchases, sales, issuances and settlements, other 0 0 0 0
Periodic settlement of fair value swap 0 0 0 0
Balance, End of Period $ (226) $ (226) $ (226) $ (226)