Pension and Postretirement Benefit Obligations - Components of Net Periodic Postretirement Benefit Cost (Details) - Postretirement Benefits - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2023	Apr. 01, 2022
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 294	$ 383
Interest cost	698	474
Recognized net actuarial loss	0	92
Net periodic pension/postretirement benefit cost	$ 992	$ 949

Amount of gain (loss), recognized immediately as component of net periodic benefit (cost) credit, for change in value of benefit obligation or plan assets from experience different from that assumed, change in actuarial assumption, or consequence of temporarily deviating from substantive plan. Includes, but is not limited to, amount in excess of 10 percent of greater of fair value of plan assets or benefit obligation.

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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.

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

+ References

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

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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