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Note 2 - Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Property, Plant and Equipment [Table Text Block]
   

2022

   

2021

   

Estimated Life

(Years)

 

Land

  $ 162,641     $ 156,169          

Buildings and improvements

    570,595       552,965     10 39  

Leasehold improvements

    42,236       39,665     2 39  

Machinery and shop equipment

    96,584       92,762     5 20  

Furniture, fixtures and computers

    98,609       84,728     3 15  

Transportation equipment

    116,327       103,611     3 15  

Lease and rental vehicles

    1,067,006       947,318     1 8  

Construction in progress

    14,585       6,664            

Accumulated depreciation and amortization

    (799,989 )     (705,675 )          
                           

Total

  $ 1,368,594     $ 1,278,207            
Schedule of Goodwill [Table Text Block]

Balance December 31, 2021

  $ 370,331  

Acquisitions during 2022

    47,437  

Currency translation

    (1,405 )

Balance December 31, 2022

  $ 416,363  
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
   

2022

   

2021

   

2020

 

Weighted-average stock volatility

    34.97 %     36.03 %     33.11 %

Expected dividend yield

    1.44 %     1.65 %     1.20 %

Risk-free interest rate

    2.13 %     1.07 %     0.80 %

Expected life (years)

    6.0       6.0       6.0  

Weighted-average fair value of stock options granted

  $ 16.81     $ 14.77     $ 6.36