XML 23 R21.htm IDEA: XBRL DOCUMENT v3.19.3
Note 3 - Share-based Compensation (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
   

Three Months Ended

September 30,

   

Nine Months Ended

September 30,

 
   

2019

   

2018

   

2019

   

2018

 

Restricted share units:

 

Pretax compensation expense

  $ 10,309     $ 7,626     $ 30,942     $ 26,061  

Tax benefit

    2,660       1,983       7,983       6,776  

Restricted share unit expense, net of tax

  $ 7,649     $ 5,643     $ 22,959     $ 19,285  

Performance share units:

 

Pretax compensation expense

  $ 3,541     $ 3,557     $ 11,212     $ 11,123  

Tax benefit

    914       925       2,893       2,892  

Performance share unit expense, net of tax

  $ 2,627     $ 2,632     $ 8,319     $ 8,231