Note 3 - Stock-based Compensation - Stock-based Compensation Plan Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share based compensation expense		$ 60,677	$ 51,398	$ 173,581	$ 149,630
Tax benefit related to stock-based compensation	[1]	756	766	1,919	2,272
Cost of Sales [Member]
Share based compensation expense		1,916	1,576	5,502	4,585
Research and Development Expense [Member]
Share based compensation expense		12,578	11,331	36,725	33,460
Selling, General and Administrative Expenses [Member]
Share based compensation expense		$ 46,183	$ 38,491	$ 131,354	$ 111,585

[1] Amount reflects the tax benefit related to stock-based compensation recorded for equity awards that are expected to generate tax deductions when they vest in future periods. Equity awards granted to the Company’s executive officers are subject to the tax deduction limitations set by Section 162(m) of the Internal Revenue Code.