Note 13 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets, Net	$ 1,092,403	$ 1,132,198
Deferred Tax Assets, Valuation Allowance	3,617,562	3,608,471
Intangible Assets Tax Basis, Increase (Decrease)	23,200
Unrecognized Tax Benefits	81,064	74,386	$ 62,660	$ 49,277
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	66,900	58,900
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	8,200	6,300
Bermuda Subsidiary [Member]
Foreign Earnings Repatriated	275,000	642,000
Foreign Tax Jurisdiction [Member]
Deferred Tax Assets, Net	1,100,000	1,100,000
Deferred Tax Liabilities, Net	200,000	200,000
Deferred Tax Assets, Valuation Allowance	100,000	100,000
Operating Loss Carryforwards	19,200
Operating Loss Carryforwards Not Subject to Expiration	1,800
Operating Loss Carryforwards Subject to Expiration	17,400
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	4,300
Domestic Tax Jurisdiction [Member] | Research Tax Credit Carryforward [Member]
Tax Credit Carryforward, Amount	$ 0	$ 48,200