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Other noncurrent liabilities
12 Months Ended
Dec. 31, 2023
Other noncurrent liabilities  
Other noncurrent liabilities

Note 11 – Other noncurrent liabilities:

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​

​

​

​

​

​

​

​

    

December 31, 

​

    

2022

    

2023

​

​

(In millions)

Accrued postretirement benefits

​

$

5.9

​

$

6.4

Employee benefits

​

 

4.8

​

 

4.9

Other

​

 

9.8

​

 

10.5

Total

​

$

20.5

​

$

21.8

​