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Retirement Plans - AOCI (Details) - Defined Benefit Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Net unrecognized actuarial loss at beginning of period	$ (256,695)	$ (251,629)
Amortization of net loss	12,019	10,320
Net loss arising during the year	(13,432)	(24,939)
Currency translation	(2,993)	9,553
Net unrecognized actuarial loss at end of period	$ (261,102)	$ (256,695)

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Defined Benefit Plan, Amounts Recognized In Other Comprehensive Income (Loss), Currency Translation

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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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