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Note 13 - Income Taxes (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
  

2023

  

2022

  

2021

 

U.S.

 $1,021.9  $1,277.1  $784.1 

Foreign

  5.3   (14.7)  2.4 

Total income before income taxes

 $1,027.2  $1,262.4  $786.5 
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
  

2023

  

2022

  

2021

 

Current:

            

Federal

 $226.8  $247.8  $123.8 

State and local

  52.0   64.7   19.5 

Foreign

  9.0   1.1   3.0 

Total current provision for income taxes

  287.8   313.6   146.3 

Deferred:

            

Federal

  (23.4)  (43.3)  20.6 

State and local

  (3.4)  (11.2)  10.5 

Foreign

  (2.2)  (38.8)  2.0 

Total deferred provision for income taxes

  (29.0)  (93.3)  33.1 

Provision for income taxes

 $258.8  $220.3  $179.4 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

2023

  

2022

  

2021

 

Federal statutory rate

  21.0%  21.0%  21.0%

State and local taxes, net of federal tax benefit

  3.7   3.4   2.8 

Impact of dispositions

  -   (3.0)  - 

UK valuation allowance release

  -   (2.4)  - 

Global Intangible Low-taxed Income

  1.3   0.4   2.6 

Stock-based compensation

  (1.8)  (1.7)  (3.5)

Other

  1.0   (0.2)  (0.1)

Effective tax rate

  25.2%  17.5%  22.8%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
  

2023

  

2022

 

Deferred tax assets:

        

Employee wages and other benefits

 $49.9  $54.9 

Lease liabilities

  55.4   53.3 

Net operating loss carryover

  9.4   12.0 

Interest expense

  31.0   31.1 

Book/tax energy basis difference

  -   112.2 

Other

  17.1   22.0 

Total

  162.8   285.5 

Less valuation allowance

  (5.6)  (45.3)

Deferred tax assets

  157.2   240.2 

Deferred tax liabilities:

        

Right of use assets

  (48.3)  (44.1)

Fixed assets and intangible assets

  (194.1)  (223.9)

Commissions

  (18.2)  (16.8)

Pensions

  (57.0)  (56.5)

Other

  (18.9)  (12.8)

Deferred tax liabilities

  (336.5)  (354.1)

Deferred tax liabilities, net

 $(179.3) $(113.9)
Summary of Operating Loss Carryforwards [Table Text Block]

Years Ending

 

Amount

 
2024 - 2031 $20.5 
2032 - 2036  11.5 
2037 - 2043  37.0 

Total

 $69.0 
Summary of Income Tax Contingencies [Table Text Block]
  

2023

  

2022

  

2021

 

Unrecognized tax benefit as of January 1

 $3.2  $3.4  $9.9 

Gross increase in tax positions in prior period

  0.8   1.0   1.3 

Gross decrease in tax positions in prior period

  -   -   (0.1)

Settlements

  -   (0.6)   

Lapse of statute of limitations

  (2.0)  (0.6)  (7.7)

Unrecognized tax benefit as of December 31

 $2.0  $3.2  $3.4