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Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Components of Net periodic pension cost for the Company's defined benefit pension plans and U.S. post-retirement medical plan |  |  |  |
Service cost, net | $ 4,319 | $ 4,983 | $ 12,934 | $ 14,856
Interest cost on projected benefit obligations | 3,575 | 5,196 | 11,438 | 15,550
Expected return on plan assets | (10,045) | (11,623) | (30,932) | (35,050)
Net amortization and deferral | (1,757) | (2,144) | (5,264) | (5,040)
Recognition of actuarial losses/(gains) | 5,753 | 4,819 | 17,265 | 14,585
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments |  |  | 7,963 | 0
Net periodic pension cost/(credit) | 1,845 | 1,231 | 13,404 | 4,901
Net Periodic Benefit Cost (Textuals) [Abstract] |  |  |  |
Defined Benefit Plan, Settlements, Benefit Obligation |  |  | 14,600 |
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, before Tax |  |  | (8,189) | 0
Defined Benefit Plan, Settlement Loss after tax |  |  | 4,900 |
United States Pension Plans of US Entity, Defined Benefit [Member] |  |  |  |
Components of Net periodic pension cost for the Company's defined benefit pension plans and U.S. post-retirement medical plan |  |  |  |
Service cost, net | 103 | 211 | 328 | 628
Interest cost on projected benefit obligations | 1,014 | 1,607 | 3,414 | 4,823
Expected return on plan assets | (1,868) | (2,395) | (5,912) | (7,183)
Net amortization and deferral | 0 | 0 | 0 | 0
Recognition of actuarial losses/(gains) | 1,907 | 1,906 | 5,699 | 5,720
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments |  |  | 7,963 | 0
Net periodic pension cost/(credit) | 1,156 | 1,329 | 11,492 | 3,988
Foreign Pension Plans, Defined Benefit [Member] |  |  |  |
Components of Net periodic pension cost for the Company's defined benefit pension plans and U.S. post-retirement medical plan |  |  |  |
Service cost, net | 4,216 | 4,772 | 12,606 | 14,228
Interest cost on projected benefit obligations | 2,542 | 3,554 | 7,967 | 10,623
Expected return on plan assets | (8,177) | (9,228) | (25,020) | (27,867)
Net amortization and deferral | (1,288) | (1,675) | (3,856) | (3,632)
Recognition of actuarial losses/(gains) | 4,519 | 3,756 | 13,585 | 11,393
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments |  |  | 0 | 0
Net periodic pension cost/(credit) | 1,812 | 1,179 | 5,282 | 4,745
Net Periodic Benefit Cost (Textuals) [Abstract] |  |  |  |
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year |  |  | 19,400 |
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member] |  |  |  |
Components of Net periodic pension cost for the Company's defined benefit pension plans and U.S. post-retirement medical plan |  |  |  |
Service cost, net | 0 | 0 | 0 | 0
Interest cost on projected benefit obligations | 19 | 35 | 57 | 104
Expected return on plan assets | 0 | 0 | 0 | 0
Net amortization and deferral | (469) | (469) | (1,408) | (1,408)
Recognition of actuarial losses/(gains) | (673) | (843) | (2,019) | (2,528)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments |  |  | 0 | 0
Net periodic pension cost/(credit) | $ (1,123) | $ (1,277) | (3,370) | $ (3,832)
Net Periodic Benefit Cost (Textuals) [Abstract] |  |  |  |
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year |  |  | $ 500 |

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- Definition Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References No definition available. + Details
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- Definition Total amount of prior service cost/benefit and plan transition obligation recognized in the income statement in the current period. + References No definition available. + Details
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- Definition Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Gain or Loss -URI http://asc.fasb.org/extlink&oid=49168827 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512171 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(2) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Service Cost (Component of Net Periodic Pension Cost) -URI http://asc.fasb.org/extlink&oid=6525008 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition The amount of decrease that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include (a) making lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and (b) purchasing nonparticipating annuity contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of employer's best estimate of contributions expected to be paid to the plan in the current remaining fiscal period. + References No definition available. + Details
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- Definition Amount before tax of gain (loss) adjustment to other comprehensive income (loss) resulting from settlement or curtailment of defined benefit pension and other postretirement defined benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Plan Curtailment -URI http://asc.fasb.org/extlink&oid=6520938 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Settlement of a Pension or Postretirement Benefit Obligation -URI http://asc.fasb.org/extlink&oid=6531942 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(7) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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