Note 3 - Stock-based Compensation - Stock-based Compensation Plan Expenses (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share based compensation expense		$ 37,992	$ 42,915	$ 75,001	$ 82,726
Tax benefit related to stock-based compensation	[1]	663	652	1,086	1,225
Cost of Sales [Member]
Share based compensation expense		1,150	1,198	2,297	2,505
Research and Development Expense [Member]
Share based compensation expense		9,313	9,187	17,927	17,588
Selling, General and Administrative Expenses [Member]
Share based compensation expense		$ 27,529	$ 32,530	$ 54,777	$ 62,633

[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.