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Goodwill And Other Intangible Assets (Reconciliation Of The Beginning And Ending Balance Of Goodwill) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Goodwill [Roll Forward] |  |
Finite-Lived Intangible Assets, Gross | $ 43,669 | $ 43,585
Finite-Lived Intangible Assets, Accumulated Amortization | (31,979) | (29,433)
Finite-Lived Intangible Assets, Net | 11,690 | 14,152
Reclassification from customer relationship intangibles to goodwill | (2,900) |
Customer-Related Intangible Assets |  |
Goodwill [Roll Forward] |  |
Finite-Lived Intangible Assets, Gross | 26,549 | 26,526
Finite-Lived Intangible Assets, Accumulated Amortization | (15,467) | (13,267)
Finite-Lived Intangible Assets, Net | 11,082 | 13,259
Technology-Based Intangible Assets |  |
Goodwill [Roll Forward] |  |
Finite-Lived Intangible Assets, Gross | 3,726 | 3,721
Finite-Lived Intangible Assets, Accumulated Amortization | (3,672) | (3,603)
Finite-Lived Intangible Assets, Net | 54 | 118
Trade Names [Member] |  |
Goodwill [Roll Forward] |  |
Finite-Lived Intangible Assets, Gross | 13,394 | 13,338
Finite-Lived Intangible Assets, Accumulated Amortization | (12,840) | (12,563)
Finite-Lived Intangible Assets, Net | 554 | 775
Aluminum Extrusions |  |
Goodwill [Roll Forward] |  |
Reclassification from customer relationship intangibles to goodwill | $ (2,900) |
Reclassification from customer relationships to goodwill, net amortization |  | $ (900)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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