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Goodwill And Other Intangible Assets
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill And Other Intangible Assets 5. GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS
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.
A reconciliation of identifiable intangibles at December 31, 2024 and 2023 is as follows:
(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 
Amortization expense over the next four years is expected to be $1.8 million per year and is expected to end in early 2029.