Note 4 - Balance Sheet Components - Other Long-term Assets (Details) - USD ($) $ in Thousands		Mar. 31, 2025	Dec. 31, 2024
Deferred compensation plan assets		$ 91,811	$ 92,586
Operating lease right-of-use (“ROU”) and related assets	[1]	35,856	34,198
Prepaid wafer purchases	[2]	0	60,000
Others		8,307	7,593
Total		$ 135,974	$ 194,377

[1] The operating lease ROU and related assets include a fair value measurement related to favorable market terms on a facility lease.

[2] Prepaid wafer purchases relate to a deposit made to a supplier under a long-term wafer supply agreement. See Note 8 for details about the supply agreement.