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Other Income (Expense), Net (Tables)
 9 Months Ended
Sep. 30, 2024
Other Income and Expenses [Abstract]  
Other Income (Expense), Net

The following table presents the components of Other income (expense), net (in millions of dollars):

 

 

 

Quarter Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2024

 

 

2023

 

 

2024

 

 

2023

 

Interest income

 

$

0.9

 

 

$

0.6

 

 

$

3.0

 

 

$

1.2

 

Net periodic postretirement benefit cost

 

 

(1.5

)

 

 

(2.2

)

 

 

(3.3

)

 

 

(6.1

)

Unrealized gain (loss) on equity securities

 

 

0.2

 

 

 

(0.1

)

 

 

0.5

 

 

 

0.2

 

Gain (loss) on disposition of property, plant and equipment

 

 

4.4

 

 

 

(0.2

)

 

 

3.9

 

 

 

14.0

 

Gain on business interruption insurance recoveries1

 

 

4.6

 

 

 

—

 

 

 

15.1

 

 

 

—

 

All other, net

 

 

0.1

 

 

 

(0.3

)

 

 

(0.1

)

 

 

(0.4

)

Other income (expense), net

 

$

8.7

 

 

$

(2.2

)

 

$

19.1

 

 

$

8.9

 

 

1.
Represents advances against business interruption insurance claims. We recognize such advances in the period in which the insurance proceeds are received or become realizable. As of September 30, 2024, we received net cash proceeds of $13.4 million.