Supplemental Cash Flow and Non-Cash Information (Schedule Of Supplemental Cash Flow and Non-Cash Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 28,478	$ 20,558	$ 18,071
Interest paid	11,627	8,207	9,048
Non-cash investing activity:
Additions to property, plant and equipment in accounts payable	$ 23,734	$ 8,614	$ 3,164