Intangible Assets, Goodwill and Other (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Identifiable Intangible Assets [Table Text Block]

(in thousands)	March 31, 2024		December 31, 2023		March 31, 2023
Intangible assets with definite lives:
Patents and purchased technology	$	14,198	$	14,198	$	14,198
Customer relationships	23,000		23,000		23,000
Gross carrying amount	37,198		37,198		37,198
Accumulated amortization:
Patents and purchased technology	(14,198)		(14,198)		(14,198)
Customer relationships	(22,725)		(22,313)		(21,075)
Accumulated amortization	(36,923)		(36,511)		(35,273)
Net carrying amount	275		687		1,925
Intangible assets with indefinite lives	79,221		79,221		79,221
Intangible assets, net	$	79,496	$	79,908	$	81,146