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Note 18 - Income Taxes (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Operating Loss Carryforwards   $ 2,083,000    
Operating Loss Carryforwards, Not Subject to Expiration   910,000    
Operating Loss Carryforwards, Subject to Expiration   $ 1,173,000    
Net Operating Losses and Tax Credit Carryforwards, Limitations Minimum Ownership Change Percentage   50.00%    
Net Operating Losses and Tax Credit Carryforwards, Limitations, Ownership Change Period (Year)   3 years    
Deferred Tax Liabilities, Undistributed Foreign Earnings   $ 17,000 $ 20,000  
Deferred Tax Assets, Valuation Allowance   826,000 934,000  
Deferred Tax Assets, Net of Valuation Allowance, Total   256,000 162,000  
Income Tax Examination, Penalties and Interest Accrued, Total   10,000 11,000  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate   13,000 15,000  
Minimum [Member]        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit   0    
Maximum [Member]        
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit   2,000    
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]        
Foreign Income Tax Expense (Benefit), Continuing Operations, Total $ 167,000      
Foreign Tax Authority [Member]        
Deferred Tax Assets, Valuation Allowance   285,000 360,000  
Deferred Tax Assets, Net of Valuation Allowance, Total   $ 275,000 $ 351,000  
Income Tax Examination, Year under Examination   2015 2016 2017 2018 2014  
Income Tax Examination, Penalties and Interest Expense, Total   $ 2,000    
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount   $ (3,000)    
Liability for Uncertainty in Income Taxes, Current     $ 3,000  
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total     4,000  
Open Tax Year   2014 2015 2016 2017 2018 2019 2020 2021 2022    
Domestic Tax Authority [Member]        
Deferred Tax Assets, Valuation Allowance   $ 541,000 574,000  
Deferred Tax Assets, Net of Valuation Allowance, Total   $ 524,000 $ 554,000  
Open Tax Year   2019 2020 2021 2022    
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]        
Income Tax Examination, Year under Examination       2013 2014
Liability for Uncertainty in Income Taxes, Current       $ 41,000
State and Local Jurisdiction [Member]        
Open Tax Year   2016 2017 2018 2019 2020 2021 2022    
General Business Tax Credit Carryforward [Member]        
Tax Credit Carryforward, Amount   $ 358,000    
Investment Tax Credit Carryforward [Member]        
Tax Credit Carryforward, Amount   $ 26,000