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Accumulated Other Comprehensive Income (Loss) (Schedule Of Reclassifications Of Balances Out Of Accumulated Other Comprehensive Income (Loss) Into Net Income) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Beginning Balance $ 201,762 $ 184,722
Other comprehensive income (loss) 4,635 16,267
Income tax (expense) benefit (1,524) (3,918)
Other comprehensive income (loss), net of tax 3,111 12,349
Reclassification adjustment to net income (loss) 1,951 2,093
Income tax (expense) benefit (386) (438)
Reclassification adjustment to net income (loss), net of tax 1,565 1,655
Other comprehensive income (loss) 4,676 14,004
Ending Balance 201,609 211,868
Accumulated Other Comprehensive Income (Loss)    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Beginning Balance (147,595) (149,504)
Ending Balance (142,919) (135,500)
Foreign Currency Translation    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Beginning Balance (86,079) (85,792)
Other comprehensive income (loss) 1,557 6,264
Income tax (expense) benefit (437) (728)
Other comprehensive income (loss), net of tax 1,120 5,536
Reclassification adjustment to net income (loss) 0 0
Income tax (expense) benefit 0 0
Reclassification adjustment to net income (loss), net of tax 0 0
Other comprehensive income (loss) 1,120 5,536
Ending Balance (84,959) (80,256)
Gain (Loss) on Derivative Financial Instruments    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Beginning Balance (2,480) 901
Other comprehensive income (loss) 3,078 10,003
Income tax (expense) benefit (1,087) (3,190)
Other comprehensive income (loss), net of tax 1,991 6,813
Reclassification adjustment to net income (loss) (973) (1,157)
Income tax (expense) benefit 251 274
Reclassification adjustment to net income (loss), net of tax (722) (883)
Other comprehensive income (loss) 1,269 5,930
Ending Balance (1,211) 6,831
Pension & Other Postretirement Benefit Adjust    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Beginning Balance (59,036) (64,613)
Other comprehensive income (loss) 0 0
Income tax (expense) benefit 0 0
Other comprehensive income (loss), net of tax 0 0
Reclassification adjustment to net income (loss) 2,924 3,250
Income tax (expense) benefit (637) (712)
Reclassification adjustment to net income (loss), net of tax 2,287 2,538
Other comprehensive income (loss) 2,287 2,538
Ending Balance $ (56,749) $ (62,075)