Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss By Component) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated other comprehensive income loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	$ (17,158)	$ (16,651)	$ (16,759)
Other comprehensive gain (loss) before reclassifications	1,406	(859)	1,226
Amounts reclassified from accumulated other comprehensive loss	(481)	352	(1,118)
Net current period other comprehensive gain (loss)	925	(507)	108
Accumulated other comprehensive loss, net of tax, ending balance	(16,233)	(17,158)	(16,651)
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)	(12,425)
Other comprehensive gain (loss) before reclassifications	(3,148)	(4,354)	4,050
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Net current period other comprehensive gain (loss)	(3,148)	(4,354)	4,050
Accumulated other comprehensive loss, net of tax, ending balance	(15,877)	(12,729)	(8,375)
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)	(3,600)
Other comprehensive gain (loss) before reclassifications	4,641	3,018	(2,024)
Amounts reclassified from accumulated other comprehensive loss	(481)	352	(1,118)
Net current period other comprehensive gain (loss)	4,160	3,370	(3,142)
Accumulated other comprehensive loss, net of tax, ending balance	788	(3,372)	(6,742)
Other, net of tax [Member]
Accumulated other comprehensive income loss [Line Items]
Accumulated other comprehensive loss, net of tax, beginning balance	(1,057)	(1,534)	(734)
Other comprehensive gain (loss) before reclassifications	(87)	477	(800)
Amounts reclassified from accumulated other comprehensive loss	0	0	0
Net current period other comprehensive gain (loss)	(87)	477	(800)
Accumulated other comprehensive loss, net of tax, ending balance	$ (1,144)	$ (1,057)	$ (1,534)