Retirement Plans and Postretirement Medical Benefits (Level 3 Gains and Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
United States \| Real estate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Fair value of plan assets - beginning of year	$ 67,256	$ 91,500
Realized gains	6,762	4,505
Unrealized losses	(14,316)	(18,386)
Net purchases, sales and settlements	(14,481)	(10,363)
Foreign currency and other	0	0
Fair value of plan assets - end of year	45,221	67,256
Foreign \| Real estate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Fair value of plan assets - beginning of year	43,205	42,980
Realized gains	0	0
Unrealized losses	406	(3,951)
Net purchases, sales and settlements	1,214	2,014
Foreign currency and other	(895)	2,162
Fair value of plan assets - end of year	43,930	43,205
Foreign \| Diversifiers
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation
Fair value of plan assets - beginning of year	0	24,394
Realized gains	0	0
Unrealized losses	3,446	(3,133)
Net purchases, sales and settlements	45,406	(22,396)
Foreign currency and other	(452)	1,135
Fair value of plan assets - end of year	$ 48,400	$ 0

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets sold.

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- Definition

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held.

+ References

+ Details

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 715
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+ Details

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 715
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org/1943274/2147480506/715-20-50-1

+ Details

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- Definition

Amount, measured using unobservable input, of increase (decrease) in plan asset of defined benefit plan from purchase, sale and settlement of trade associated with underlying investment.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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