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Note 12 - Goodwill and Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Goodwill [Table Text Block]
  

Insurance

  

Specialized Markets

  

Financial Services

  

Total

 

Goodwill at January 1, 2022

 $1,454.8  $117.4  $475.4  $2,047.6 

Acquisitions

  284.4         284.4 

Purchase accounting reclassifications

  (0.5)        (0.5)

Disposition of sold businesses

     (116.5)  (473.2)  (589.7)

Impairment Charge

        (1.7)  (1.7)

Foreign currency translation adjustment

  (62.7)  (0.9)  (0.5)  (64.1)

Goodwill at December 31, 2022

  1,676.0         1,676.0 

Acquisitions

  55.9         55.9 

Purchase accounting reclassifications

  (0.1)        (0.1)

Foreign currency translation adjustment

  29.0         29.0 

Goodwill at December 31, 2023

 $1,760.8  $  $  $1,760.8 
Schedule of Finite-Lived Intangible Assets [Table Text Block]
  

Weighted

            
  

Average

            
  

Useful Life

     

Accumulated

     
  

(in years)

 

Cost

  

Amortization

  

Net

 

December 31, 2023

              

Technology-based

 8 $370.2  $(261.2) $109.0 

Marketing-related

 6  42.7   (38.7)  4.0 

Contract-based

 6  5.0   (5.0)  - 

Customer-related

 13  542.1   (190.7)  351.4 

Database-based

 8  15.2   (7.9)  7.3 

Total intangible assets

   $975.2  $(503.5) $471.7 

December 31, 2022

              

Technology-based

 8 $355.1  $(229.3) $125.8 

Marketing-related

 6  41.3   (35.5)  5.8 

Contract-based

 6  5.0   (5.0)   

Customer-related

 13  510.7   (146.7)  364.0 

Database-based

 8  15.0   (5.8)  9.2 

Total intangible assets

   $927.1  $(422.3) $504.8 
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Years Ending

 

Amount

 

2024

 $72.2 

2025

  63.1 

2026

  61.1 

2027

  52.8 

2028

  45.7 

2029 and thereafter

  176.8 

Total

 $471.7