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Note 15 - Shareholders' Equity (Details Textual) - $ / shares
shares in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Stock Authorized (in shares) 560.0  
Common Stock, Shares Authorized (in shares) 500.0  
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, Shares Authorized (in shares) 60.0  
Preferred Stock, No Par Value (in dollars per share) $ 0  
Common Stock, Shares, Outstanding (in shares) 97.6 97.4
Treasury Stock, Common, Shares (in shares) 3.2 3.0
Series B Preferred Stock [Member]    
Preferred Stock, Shares Outstanding (in shares) 1.0 1.0
Preferred Stock, Shares Issued (in shares) 1.0 1.0
Preferred Stock, Dividend Rate, Percentage 6.00% 4.00%