Hedge Accounting (Schedule Of Derivative Instruments On The Balance Sheet At Fair Value) (Details) - USD ($) $ in Thousands |
Jun. 30, 2021 |
Dec. 31, 2020 |
---|---|---|
Derivatives, Fair Value [Line Items] | ||
Derivative financial instruments - current portion | $ 219 | $ 218 |
Derivative financial instruments - non-current portion | 96 | 212 |
Designated as Hedging Instrument [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Total derivatives designated as hedging instruments | 315 | 430 |
Total derivatives | 315 | 430 |
Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Derivative financial instruments - non-current portion | 96 | 212 |
Interest Rate Contracts [Member] | Designated as Hedging Instrument [Member] | Other Current Liabilities [Member] | ||
Derivatives, Fair Value [Line Items] | ||
Derivative financial instruments - current portion | $ 219 | $ 218 |