Note 4. Goodwill and Intangible Assets (Details) - Goodwill - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Goodwill [Line Items]
Goodwill, gross	$ 424,460	$ 421,700	$ 423,052
Goodwill, accumulated impairment losses	(393,365)	(393,365)	(393,365)
Goodwill	31,095	28,335	$ 29,687
Goodwill from acquisition	0	0
Goodwill impaired	0	0
Goodwill, period increase (decrease)	0	0
Goodwill, foreign currency translation gain (loss)	2,760	(1,352)
Goodwill impaired, foreign currency translation gain (loss)	$ 0	$ 0