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Goodwill And Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Reconciliation Of The Beginning And Ending Balance Of Goodwill
A reconciliation of goodwill at December 31, 2024 and 2023 is as follows:
(In thousands)
Aluminum Extrusions(a)
PE Films(a)
Total
Net carrying value of goodwill at December 31, 2022
$13,271 $57,337 $70,608 
Goodwill impairment— (34,891)(34,891)
Net carrying value of goodwill at December 31, 2023
13,271 22,446 35,717 
Goodwill impairment(13,271)— (13,271)
Net carrying value of goodwill at December 31, 2024
$— $22,446 $22,446 
(a) The goodwill of Aluminum Extrusions and PE Films is carried by the Clearfield and Surface Protection reporting units, respectively.
Schedule Of Goodwill And Other Intangibles
(In thousands) Customer Relationships Proprietary Technology Trade Names Total
Gross carrying value at December 31, 2023
$25,900 $3,400 $11,500 $40,800 
Accumulated amortization(16,795)(3,400)(11,500)(31,695)
Net carrying value at December 31, 2023
$9,105 $— $— $9,105 
Gross carrying value at December 31, 2024
$25,900 $— $6,700 $32,600 
Accumulated amortization(18,574)— (6,700)(25,274)
Net carrying value at December 31, 2024
$7,326 $— $— $7,326