Retirement Plans - Components of Net Periodic Benefit Cost (Details) - Defined benefit pension and post-retirement life plans - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Interest cost	$ 3,888	$ 3,866
Expected return on plan assets	(5,382)	(5,773)
Amortization of unrecognized net actuarial loss	955	751
Total net periodic pension cost (benefit)	$ (539)	$ (1,156)

Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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- Definition

Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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