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Note 8 - Segment Information (Tables)
3 Months Ended
Mar. 31, 2020
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
   

Truck

Segment

   

 

All Other

   

 

Totals

 
                         

As of and for the three months ended March 31, 2020

                       

Revenues from external customers

  $ 1,283,379     $ 3,284     $ 1,286,663  

Segment operating income (loss)

    35,451       (254 )     35,197  

Segment income (loss) before taxes

    31,993       (324 )     31,669  

Segment assets

    3,203,704       38,954       3,242,658  
                         

As of and for the three months ended March 31, 2019

                       

Revenues from external customers

  $ 1,344,449     $ 3,868     $ 1,348,317  

Segment operating income

    56,742       125       56,867  

Segment income before taxes

    49,505       53       49,558  

Segment assets

    3,384,441       37,585       3,422,026