Financial Instruments - Derivatives in Foreign Currency Hedging Relationships (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments Gain Loss [Line Items]
Derivative Gain (Loss) Recognized in OCI (Effective Portion)	$ 295	$ (2,860)
Location of Derivative Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	231	(358)
Derivative Loss Recognized In and Out of OCI (Effective Portion)		(36)
Fair Value Hedging [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Gain (Loss) Recognized in OCI (Effective Portion)	295	(2,860)
Selling, General and Administrative Expenses [Member]
Derivative Instruments Gain Loss [Line Items]
Location of Derivative Gain (Loss) Reclassified from AOCI into Income (Effective Portion)	$ 231	(341)
Inventory [Member]
Derivative Instruments Gain Loss [Line Items]
Location of Derivative Gain (Loss) Reclassified from AOCI into Income (Effective Portion)		$ (17)

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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Amount after tax of reclassification adjustments of other comprehensive income (loss).

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