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Defined Benefit Pension Plans - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost, non-service cost	$ 2,448,000	$ 2,192,000	$ 4,971,000	$ 4,337,000
Contributions by employer			0	0
U.K. Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions by employer			$ 1,205,000	$ 1,025,000

X

- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

+ References

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-Topic 715
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-Name Accounting Standards Codification
-Section 55
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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.

+ References

No definition available.

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X

- Definition

Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits.

+ References

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-Topic 715
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-Name Accounting Standards Codification
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