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Intangible Assets, Goodwill and Other (Tables)
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule Of Identifiable Intangible Assets [Table Text Block]
December 31,
(in thousands)
20222021
Intangible assets with definite lives:
Patents and purchased technology$14,198 $14,198 
Customer relationships23,000 23,000 
Gross carrying amount37,198 37,198 
Accumulated amortization:
Patents and purchased technology(14,198)(14,198)
Customer relationships(20,663)(19,013)
Accumulated amortization(34,861)(33,211)
Net carrying amount2,337 3,987 
Intangible assets with indefinite lives79,221 97,921 
Intangible assets, net$81,558 $101,908 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense
The following table presents the remaining estimated annual amortization expense of intangible assets with definite lives for the years 2023 through 2027:

(in thousands)
20231,650 
2024687 
2025— 
2026— 
2027—