Supplemental Cash Flow and Non-Cash Information (Schedule Of Supplemental Cash Flow and Non-Cash Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net	$ 8,032	$ 8,396	$ 20,883	$ 17,769
Interest paid	$ 3,264	$ 2,254	6,807	6,336
Non-cash investing activity:
Additions to property, plant and equipment in accounts payable			$ 21,921	$ 7,980