Note 3 - Stock-based Compensation - Stock-based Compensation Plan Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share based compensation expense		$ 33,602	$ 42,997	$ 108,603	$ 125,723
Tax benefit related to stock-based compensation	[1]	667	654	1,753	1,879
Cost of Sales [Member]
Share based compensation expense		1,020	1,186	3,317	3,691
Research and Development Expense [Member]
Share based compensation expense		8,479	9,287	26,406	26,875
Selling, General and Administrative Expenses [Member]
Share based compensation expense		$ 24,103	$ 32,524	$ 78,880	$ 95,157

[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.