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Derivative Financial Instruments (Schedule Of Contracts Designated As Hedged Instruments) (Details) - Designated as Hedging Instrument [Member] € in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Jun. 30, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Canadian Dollars [Member]
Foreign Exchange Contracts [Line Items]
Foreign exchange contracts, Notional Amount | $	$ 3,894	$ 2,807
Derivative, Maturity Date	Feb. 01, 2024	Feb. 01, 2023
Euros [Member]
Foreign Exchange Contracts [Line Items]
Foreign exchange contracts, Notional Amount | €			€ 16,276	€ 20,760
Derivative, Maturity Date	Feb. 01, 2024	Feb. 01, 2024

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