Supplemental Cash Flow and Non-Cash Information (Schedule Of Supplemental Cash Flow and Non-Cash Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 4,470	$ 4,428
Interest paid	7,399	5,874
Property Plant and Equipment [Member]
Non-cash investing activities:
Unpaid purchases at the end of the period	1,714	5,555
Capitalized Purchased Software Costs [Member]
Non-cash investing activities:
Unpaid purchases at the end of the period	$ 1,320	$ 0