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Retirement Plans
3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Retirement Plans

Note 6—Retirement Plans

We have a frozen noncontributory, unfunded retirement plan for certain retirees in the U.S. (U.S. Retirement Plan). As of March 31, 2024 and December 31, 2023, the accumulated benefit obligation of the U.S. Retirement Plan was $33.7 million and $34.1 million. Certain of our foreign subsidiaries also have defined benefit pension plans covering substantially all of their respective teammates.

The components of net periodic benefit cost for the three months ended March 31, 2024 and 2023 were as follows:

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Three Months Ended

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March 31, 

​

    

2024

    

2023

Service cost

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$

458

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$

441

Interest cost

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​

645

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​

710

Recognized net actuarial loss

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81

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123

Net periodic benefit cost

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$

1,184

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$

1,274

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