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Pension Plans and Other Postretirement Benefits (Pension Plans With The Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Pension Benefits | United States
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	$ 39,016	$ 38,167
Fair market value of plan assets	0	0
Pension plans with project benefit obligation in excess of the fair market value of plan assets
Projected benefit obligation	41,081	41,201
Fair market value of plan assets	0	0
Pension Benefits | Foreign Retirement Plans
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	32,176	27,879
Fair market value of plan assets	14,527	12,642
Pension plans with project benefit obligation in excess of the fair market value of plan assets
Projected benefit obligation	257,642	41,126
Fair market value of plan assets	207,131	12,642
Postretirement Benefits | United States
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	25,584	24,651
Fair market value of plan assets	$ 0	$ 0

X

- Definition

Amount of plan asset for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920

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- Definition

Amount of projected benefit obligation for defined benefit pension plan with projected benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920

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- Definition

Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920

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- Definition

Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
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-Subparagraph (b)
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-Publisher FASB
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