Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, Net and Goodwill (Schedule of Identifiable Intangible Assets) (Details)

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Intangible Assets, Net and Goodwill (Schedule of Identifiable Intangible Assets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Summary of Identifiable Intangible Assets [Line Items]      
Gross carrying amount $ 37,198 $ 37,198 $ 37,198
Accumulated amortization (37,198) (36,511) (36,098)
Net carrying amount 0 687 1,100
Intangible assets not subject to amortization 79,221 79,221 79,221
Intangible Assets, Net (Excluding Goodwill), Total 79,221 79,908 80,321
Patents And Purchased Technology      
Summary of Identifiable Intangible Assets [Line Items]      
Gross carrying amount 14,198 14,198 14,198
Accumulated amortization (14,198) (14,198) (14,198)
Customer Relationships      
Summary of Identifiable Intangible Assets [Line Items]      
Gross carrying amount 23,000 23,000 23,000
Accumulated amortization $ (23,000) $ (22,313) $ (21,900)