Financial Instruments and Risk Management (Gross Notional Amount of Outstanding Derivatives) (Details) - Foreign Exchange Forward [Member] - USD ($) $ in Thousands |
Sep. 30, 2022 |
Dec. 31, 2021 |
Sep. 30, 2021 |
|---|---|---|---|
| Designated as Hedging Instrument [Member] | |||
| Derivatives, Fair Value [Line Items] | |||
| Derivative, Notional Amount | $ 459,189 | $ 485,083 | $ 471,250 |
| Not Designated as Hedging Instrument [Member] | |||
| Derivatives, Fair Value [Line Items] | |||
| Derivative, Notional Amount | $ 287,825 | $ 267,982 | $ 247,134 |