Derivative Financial Instruments (Schedule Of Contracts Designated As Hedged Instruments) (Details) - Designated as Hedging Instrument € in Thousands, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Sep. 30, 2023 EUR (€)	Dec. 31, 2022 EUR (€)
Canadian Dollars
Derivative Instruments and Hedging Activities Disclosures
Foreign exchange contracts, Notional Amount | $	$ 5,656	$ 2,807
Derivative, Maturity Date	Feb. 01, 2024	Feb. 01, 2023
Euros
Derivative Instruments and Hedging Activities Disclosures
Foreign exchange contracts, Notional Amount | €			€ 15,944	€ 20,760
Derivative, Maturity Date	Feb. 01, 2024	Feb. 01, 2024