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Note 3 - Share-based Compensation (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

September 30,

   

Nine Months Ended

September 30,

 
   

2025

   

2024

   

2025

   

2024

 

Restricted share units:

 

Pretax compensation expense

  $ 15,423     $ 13,842     $ 41,968     $ 39,659  

Tax benefit

    4,047       3,654       11,012       10,470  

Restricted share unit expense, net of tax

  $ 11,376     $ 10,188     $ 30,956     $ 29,189  
   

Performance share units:

 

Pretax compensation expense

  $ 5,164     $ 5,971     $ 16,727     $ 17,717  

Tax benefit

    1,355       1,576       4,389       4,677  

Performance share unit expense, net of tax

  $ 3,809     $ 4,395     $ 12,338     $ 13,040