Deferred Charges, Goodwill And Other Assets, Net (Schedule Of Cash Flow Hedging, Derivative Financial Instruments On The Income Statement) (Details) - Not Designated as Hedging Instrument [Member] - Cash Flow Hedging [Member] - USD ($) $ in Thousands |
3 Months Ended |
6 Months Ended |
Jun. 30, 2016 |
Jun. 30, 2016 |
| Interest Expense [Member] |
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
| Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |
|
$ 1,740
|
| Interest And Other Investment Income (Loss) [Member] |
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
| Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion, Reclassification for Forecasted Transactions No Longer Probable of Occurring and Amount Excluded from Effectiveness Testing) |
|
(1,012)
|
| Interest Rate Swap [Member] |
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
| Amount of Gain or (Loss) Recognized in OCI on Derivative (Effective Portion) |
$ (3,807)
|
$ (10,994)
|
| Interest Rate Swap [Member] | Interest Expense [Member] |
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
| Amount of Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion) |
893
|
|
| Interest Rate Swap [Member] | Interest And Other Investment Income (Loss) [Member] |
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
| Amount of Gain or (Loss) Recognized in Income on Derivative (Ineffective Portion, Reclassification for Forecasted Transactions No Longer Probable of Occurring and Amount Excluded from Effectiveness Testing) |
$ (99)
|
|