Goodwill And Intangible Assets (Changes In The Carrying Value Of Goodwill) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Goodwill [Line Items]
Gross carrying value, Beginning	$ 103,744
Currency translation	76
Gross carrying value, Ending	103,820
Accumulated impairment losses, Beginning	(23,161)
Accumulated impairment losses, Ending	(23,161)
Net carrying value	80,659	$ 80,583
United States Segment [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	89,975
Gross carrying value, Ending	89,975
Accumulated impairment losses, Beginning	(19,786)
Accumulated impairment losses, Ending	(19,786)
Net carrying value	70,189	70,189
Canada Segment [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	7,233
Currency translation	(78)
Gross carrying value, Ending	7,155
Accumulated impairment losses, Beginning	(3,375)
Accumulated impairment losses, Ending	(3,375)
Net carrying value	3,780	3,858
Poland Segment [Member]
Goodwill [Line Items]
Gross carrying value, Beginning	6,536
Currency translation	154
Gross carrying value, Ending	6,690
Accumulated impairment losses, Beginning
Accumulated impairment losses, Ending
Net carrying value	$ 6,690	$ 6,536