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Note 3 - Share-based Compensation (Tables)
3 Months Ended
Mar. 31, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

March 31,

 
   

2025

   

2024

 

Restricted share units:

               

Pretax compensation expense

  $ 12,043     $ 12,408  

Tax benefit

    3,175       3,214  

Restricted share unit expense, net of tax

  $ 8,868     $ 9,194  

Performance share units:

               

Pretax compensation expense

  $ 6,401     $ 6,001  

Tax benefit

    1,687       1,554  

Performance share unit expense, net of tax

  $ 4,714     $ 4,447