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RETIREMENT AND DEFERRED COMPENSATION PLANS (Tables) | 12 Months Ended
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Dec. 31, 2020
Retirement Benefits [Abstract] |
Change in the projected benefit obligation, plan assets at fair value and funded status | The following table presents the changes in the benefit obligations and plan assets for the most recent two years for our domestic and foreign plans.
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Change in benefit obligation: |  |  |  |  |  |  |
Benefit obligation at beginning of year | $ | 227,275 |  |  | $ | 180,803 |  |  | $ | 120,490 |  |  | $ | 104,911 |
Service cost | 14,278 |  |  | 11,093 |  |  | 7,311 |  |  | 5,921 |
Interest cost | 7,046 |  |  | 7,381 |  |  | 1,410 |  |  | 2,023 |
Special termination benefit charge | — |  |  | — |  |  | — |  |  | 64 |
Plan Amendment | — |  |  | — |  |  | — |  |  | 18 |
Curtailment/Settlement | — |  |  | — |  |  | — |  |  | (271) |
Transfer | — |  |  | — |  |  | — |  |  | 939 |
Prior service cost | — |  |  | — |  |  | (2,701) |  |  | (451) |
Actuarial loss (gain) | 38,175 |  |  | 39,209 |  |  | 1,809 |  |  | 13,575 |
Benefits paid | (14,303) |  |  | (11,211) |  |  | (5,145) |  |  | (4,130) |
Foreign currency translation adjustment | — |  |  | — |  |  | 11,252 |  |  | (2,109) |
Benefit obligation at end of year | $ | 272,471 |  |  | $ | 227,275 |  |  | $ | 134,426 |  |  | $ | 120,490 |
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Change in plan assets: |  |  |  |  |  |  |
Fair value of plan assets at beginning of year | $ | 188,801 |  |  | $ | 169,958 |  |  | $ | 74,189 |  |  | $ | 68,992 |
Actual return on plan assets | 17,088 |  |  | 29,618 |  |  | 2,008 |  |  | 3,851 |
Employer contribution | 448 |  |  | 436 |  |  | 7,527 |  |  | 6,542 |
Benefits paid | (14,303) |  |  | (11,211) |  |  | (5,145) |  |  | (4,130) |
Transfer | — |  |  | — |  |  | — |  |  | 359 |
Foreign currency translation adjustment | — |  |  | — |  |  | 6,508 |  |  | (1,425) |
Fair value of plan assets at end of year | $ | 192,034 |  |  | $ | 188,801 |  |  | $ | 85,087 |  |  | $ | 74,189 |
Funded status at end of year | $ | (80,437) |  |  | $ | (38,474) |  |  | $ | (49,339) |  |  | $ | (46,301) |
Schedule of funded status amounts recognized in the Consolidated Balance Sheet | The following table presents the funded status amounts recognized in our Consolidated Balance Sheets as of December 31, 2020 and 2019.
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Non-current assets | $ | — |  |  | $ | — |  |  | $ | 81 |  |  | $ | 938 |
Current liabilities | (461) |  |  | (449) |  |  | (37) |  |  | (44) |
Non-current liabilities | (79,976) |  |  | (38,025) |  |  | (49,383) |  |  | (47,195) |
| $ | (80,437) |  |  | $ | (38,474) |  |  | $ | (49,339) |  |  | $ | (46,301) |
Schedule of amounts not recognized as components of periodic benefit cost that are recognized in accumulated other comprehensive loss | The following table presents the amounts not recognized as components of periodic benefit cost that are recognized in accumulated other comprehensive loss as of December 31, 2020 and 2019.
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Net actuarial loss | $ | 96,440 |  |  | $ | 68,789 |  |  | $ | 40,851 |  |  | $ | 40,442 |
Net prior service cost | — |  |  | — |  |  | 675 |  |  | 3,774 |
Tax effects | (22,181) |  |  | (15,821) |  |  | (13,466) |  |  | (14,040) |
| $ | 74,259 |  |  | $ | 52,968 |  |  | $ | 28,060 |  |  | $ | 30,176 |
Schedule of changes in benefit obligations and plan assets recognized in other comprehensive income | Changes in benefit obligations and plan assets recognized in other comprehensive income in 2020, 2019 and 2018 are as follows:
| Domestic Plans
| 2020 |  | 2019 |  | 2018
Current year actuarial (loss) gain | $ | (33,335) |  |  | $ | (21,970) |  |  | $ | 4,611 |
Amortization of net loss | 5,684 |  |  | 1,957 |  |  | 4,873 |
| $ | (27,651) |  |  | $ | (20,013) |  |  | $ | 9,484 |
| Foreign Plans
| 2020 |  | 2019 |  | 2018
Current year actuarial (loss) gain | $ | (2,530) |  |  | $ | (11,999) |  |  | $ | 534 |
Current year prior service cost | 2,701 |  |  | 451 |  |  | (35) |
Transfer Prior service Cost | — |  |  | (18) |  |  | — |
Transfer Actuarial (loss) gain | — |  |  | (126) |  |  | — |
Recognition due to curtailment | — |  |  | — |  |  | 1,692 |
Amortization of net loss | 2,121 |  |  | 1,444 |  |  | 1,716 |
Amortization of prior service cost | 398 |  |  | 449 |  |  | 720 |
| $ | 2,690 |  |  | $ | (9,799) |  |  | $ | 4,627 |
Components of net periodic benefit cost | Components of net periodic benefit cost:
| Domestic Plans
| 2020 |  | 2019 |  | 2018
Service cost | $ | 14,278 |  |  | $ | 11,093 |  |  | $ | 11,396 |
Interest cost | 7,046 |  |  | 7,381 |  |  | 6,878 |
Expected return on plan assets | (12,248) |  |  | (12,379) |  |  | (11,257) |
Amortization of net loss | 5,684 |  |  | 1,957 |  |  | 4,873 |
Net periodic benefit cost | $ | 14,760 |  |  | $ | 8,052 |  |  | $ | 11,890 |
| Foreign Plans
| 2020 |  | 2019 |  | 2018
Service cost | $ | 7,311 |  |  | $ | 5,921 |  |  | $ | 5,954 |
Interest cost | 1,410 |  |  | 2,023 |  |  | 1,828 |
Expected return on plan assets | (2,620) |  |  | (2,366) |  |  | (2,610) |
Amortization of net loss | 2,121 |  |  | 1,444 |  |  | 1,716 |
Amortization of prior service cost | 398 |  |  | 449 |  |  | 720 |
Net periodic benefit cost | $ | 8,620 |  |  | $ | 7,471 |  |  | $ | 7,608 |
Curtailment | (8) |  |  | (246) |  |  | (59) |
Special termination benefit charge | — |  |  | 65 |  |  | 62 |
Total Net periodic benefit cost | $ | 8,612 |  |  | $ | 7,290 |  |  | $ | 7,611 |
Schedule of projected benefit obligation ("PBO"), ABO, and fair value of plan assets for all pension plans with an ABO in excess of plan assets | The following table provides the projected benefit obligation (“PBO”), ABO, and fair value of plan assets for all pension plans with an ABO in excess of plan assets as of December 31, 2020 and 2019.
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Projected benefit obligation | $ | 272,471 |  |  | $ | 227,275 |  |  | $ | 120,795 |  |  | $ | 92,561 |
Accumulated benefit obligation | 249,831 |  |  | 205,326 |  |  | 89,702 |  |  | 65,062 |
Fair value of plan assets | 192,034 |  |  | 188,801 |  |  | 71,457 |  |  | 46,371 |
Schedule of PBO, ABO, and fair value of plan assets for all pension plans with a PBO in excess of plan assets | The following table provides the PBO, ABO and fair value of plan assets for all pension plans with a PBO in excess of plan assets as of December 31, 2020 and 2019.
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2020 |  | 2019
Projected benefit obligation | $ | 272,471 |  |  | $ | 227,275 |  |  | $ | 130,616 |  |  | $ | 102,310 |
Accumulated benefit obligation | 249,831 |  |  | 205,326 |  |  | 98,360 |  |  | 73,943 |
Fair value of plan assets | 192,034 |  |  | 188,801 |  |  | 79,764 |  |  | 55,260 |
Schedule of weighted-average assumptions used to determine benefit obligations and net periodic benefit cost | Assumptions:
| Domestic Plans |  | Foreign Plans
| 2020 |  | 2019 |  | 2018 |  | 2020 |  | 2019 |  | 2018
Weighted-average assumptions used to determine benefit obligations at December 31: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 2.40 | % |  | 3.20 | % |  | 4.20 | % |  | 0.54 | % |  | 1.04 | % |  | 1.82 | %
Rate of compensation increase | 3.19 | % |  | 4.00 | % |  | 4.00 | % |  | 3.05 | % |  | 3.05 | % |  | 3.01 | %
Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.20 | % |  | 4.20 | % |  | 3.55 | % |  | 1.12 | % |  | 1.84 | % |  | 1.62 | %
Expected long-term return on plan assets | 7.00 | % |  | 7.00 | % |  | 7.00 | % |  | 3.41 | % |  | 3.69 | % |  | 3.66 | %
Rate of compensation increase | 4.00 | % |  | 4.00 | % |  | 4.00 | % |  | 3.05 | % |  | 3.05 | % |  | 3.02 | %
Schedule of domestic and foreign pension plan weighted-average asset allocations by asset category | Plan Assets:
| Domestic Plans Assets at December 31, |  | Foreign Plans Assets at December 31,
| 2020 |  | 2019 |  | 2020 |  | 2019
Equity securities | 48 | % |  | 49 | % |  | 5 | % |  | 4 | %
Fixed income securities | 28 | % |  | 29 | % |  | 1 | % |  | 1 | %
Corporate debt securities | — |  |  | — |  |  | 2 | % |  | 3 | %
Infrastructure | 7 | % |  | 6 | % |  | — |  |  | — |
Hedge funds | 10 | % |  | 10 | % |  | — |  |  | — |
Money market | 2 | % |  | 1 | % |  | — | % |  | 3 | %
Investment Funds | — |  |  | — |  |  | 92 | % |  | 89 | %
Real estate | 5 | % |  | 5 | % |  | — |  |  | — |
Total | 100 | % |  | 100 | % |  | 100 | % |  | 100 | %
Summary of fair value of pension plan assets |
| Domestic Fair Value Measurement at December 31, 2020 |  | Foreign Fair Value Measurement at December 31, 2020
(In Thousands $) | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
Cash and Short-term Securities (a) | $ | 3,207 |  |  | $ | 3,207 |  |  | $ | — |  |  | $ | — |  |  | $ | 415 |  |  | $ | 415 |  |  | $ | — |  |  | $ | — |
USD | — |  |  | 3,207 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
EUR | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 404 |  |  | — |  |  | — |
Others | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 11 |  |  | — |  |  | — |
Equity Securities (a) | $ | 83,041 |  |  | $ | 83,041 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,107 |  |  | $ | 4,107 |  |  | $ | — |  |  | $ | — |
U.S. Large Cap Equities | — |  |  | 48,138 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
U.S. Small Cap Equities | — |  |  | 10,299 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
International Equities | — |  |  | 24,604 |  |  | — |  |  | — |  |  | — |  |  | 4,107 |  |  | — |  |  | — |
Fixed Income (a&b) | $ | 35,691 |  |  | $ | 35,691 |  |  | $ | — |  |  | $ | — |  |  | $ | 834 |  |  | $ | 834 |  |  | $ | — |  |  | $ | — |
Corporate debts securities | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,555 |  |  | $ | 1,555 |  |  | $ | — |  |  | $ | — |
Euro Corporate Bonds (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,555 |  |  | — |  |  | — |
Investment Funds | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 78,176 |  |  | $ | 27,500 |  |  | $ | 50,676 |  |  | $ | — |
Mutual Funds in Equities (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 4,022 |  |  | — |  |  | — |
Mutual Funds in Bonds (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 22,475 |  |  | — |  |  | — |
Mutual Funds Diversified (a&b) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 1,003 |  |  | 50,676 |  |  | — |
Total Investments in Fair Value Hierarchy | $ | 121,939 |  |  | $ | 121,939 |  |  | $ | — |  |  | $ | — |  |  | $ | 85,087 |  |  | $ | 34,411 |  |  | $ | 50,676 |  |  | $ | — |
Investments at Net Asset Value per Share | 70,095 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total Investments | $ | 192,034 |  |  | $ | 121,939 |  |  | $ | — |  |  | $ | — |  |  | $ | 85,087 |  |  | $ | 34,411 |  |  | $ | 50,676 |  |  | $ | — |
| Domestic Fair Value Measurement at December 31, 2019 |  | Foreign Fair Value Measurement at December 31, 2019
(In Thousands $) | Total |  | (Level 1) |  | (Level 2) |  | (Level 3) |  | Total |  | (Level 1) |  | (Level 2) |  | (Level 3)
Cash and Short-term Securities (a) | $ | 1,988 |  |  | $ | 1,988 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,030 |  |  | $ | 2,030 |  |  | $ | — |  |  | $ | — |
USD | — |  |  | 1,988 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
EUR | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,012 |  |  | — |  |  | — |
Others | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 18 |  |  | — |  |  | — |
Equity Securities (a) | $ | 81,997 |  |  | $ | 81,997 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,995 |  |  | $ | 2,995 |  |  | $ | — |  |  | $ | — |
U.S. Large Cap Equities | — |  |  | 48,580 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
U.S. Small Cap Equities | — |  |  | 9,921 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
International Equities | — |  |  | 23,496 |  |  | — |  |  | — |  |  | — |  |  | 2,995 |  |  | — |  |  | — |
Fixed Income (a&b) | $ | 35,898 |  |  | $ | 35,898 |  |  | $ | — |  |  | $ | — |  |  | $ | 820 |  |  | $ | 820 |  |  | $ | — |  |  | $ | — |
Corporate debts securities | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 2,115 |  |  | $ | 2,115 |  |  | $ | — |  |  | $ | — |
Euro Corporate Bonds (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,115 |  |  | — |  |  | — |
Investment Funds | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 66,229 |  |  | $ | 23,797 |  |  | $ | 42,432 |  |  | $ | — |
Mutual Funds in Equities (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 4,025 |  |  | — |  |  | — |
Mutual Funds in Bonds (a) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 18,881 |  |  | — |  |  | — |
Mutual Funds Diversified (a&b) | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 891 |  |  | 42,432 |  |  | — |
Total Investments in Fair Value Hierarchy | $ | 119,883 |  |  | $ | 119,883 |  |  | $ | — |  |  | $ | — |  |  | $ | 74,189 |  |  | $ | 31,757 |  |  | $ | 42,432 |  |  | $ | — |
Investments at Net Asset Value per Share | 68,918 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total Investments | $ | 188,801 |  |  | $ | 119,883 |  |  | $ | — |  |  | $ | — |  |  | $ | 74,189 |  |  | $ | 31,757 |  |  | $ | 42,432 |  |  | $ | — |
(a)Based on third party quotation from financial institution. (b)Based on observable market transactions.
Schedule of estimated benefit payments relating to defined benefit plans over the next ten years | As of December 31, 2020, we expect the plans to make the following estimated benefit payments relating to our defined benefit plans over the next ten years:
| Domestic Plans |  | Foreign Plans
2021 | $ | 12,464 |  |  | $ | 5,514 |
2022 | 12,533 |  |  | 2,505 |
2023 | 13,297 |  |  | 3,154 |
2024 | 14,413 |  |  | 4,591 |
2025 | 14,461 |  |  | 7,772 |
2026 - 2030 | 78,437 |  |  | 37,211 |

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- Definition Tabular disclosure of benefit obligation and plan assets for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
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- Definition Tabular disclosure of the changes in plan assets and benefit obligations recognized in other comprehensive income (loss) during the period. + References No definition available. + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income or loss that have not yet been recognized as components of net periodic benefit cost, such as the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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