Note 4 - Balance Sheet Components - Other Long-term Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2026	Dec. 31, 2025
Deferred compensation plan assets		$ 106,031	$ 107,096
Refundable deposit	[1]	40,000	0
Other		60,584	57,995
Total		$ 206,615	$ 165,091

[1] The refundable deposit as of March 31, 2026 is for a long-term assembly service agreement.