Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss By Component) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	$ (17,158)	$ (16,651)
Other comprehensive gain (loss) before reclassifications	1,188	(1,336)
Amounts reclassified from accumulated other comprehensive loss	(83)	0
Net current period other comprehensive gain (loss)	1,271	(1,336)
Accumulated other comprehensive loss, net of tax, ending balance	(15,887)	(17,987)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	(12,729)	(8,375)
Other comprehensive gain (loss) before reclassifications	(1,155)	(2,420)
Amounts reclassified from accumulated other comprehensive loss	0	0
Net current period other comprehensive gain (loss)	(1,155)	(2,420)
Accumulated other comprehensive loss, net of tax, ending balance	(13,884)	(10,795)
Derivative Instruments, Net of Tax [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	(3,372)	(6,742)
Other comprehensive gain (loss) before reclassifications	2,364	945
Amounts reclassified from accumulated other comprehensive loss	(83)
Net current period other comprehensive gain (loss)	2,447	945
Accumulated other comprehensive loss, net of tax, ending balance	(925)	(5,797)
Other [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	(1,057)	(1,534)
Other comprehensive gain (loss) before reclassifications	(21)	139
Amounts reclassified from accumulated other comprehensive loss	0	0
Net current period other comprehensive gain (loss)	(21)	139
Accumulated other comprehensive loss, net of tax, ending balance	$ (1,078)	$ (1,395)