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RETIREMENT AND DEFERRED COMPENSATION PLANS (Tables) | 6 Months Ended
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Jun. 30, 2021
Retirement Benefits [Abstract] |
Components of net periodic benefit cost | Components of Net Periodic Benefit Cost:
| Domestic Plans |  | Foreign Plans
Three Months Ended June 30, | 2021 |  | 2020 |  | 2021 |  | 2020
Service cost | $ | 3,941 |  |  | $ | 3,562 |  |  | $ | 2,071 |  |  | $ | 1,767 |
Interest cost | 1,604 |  |  | 1,536 |  |  | 208 |  |  | 340 |
Expected return on plan assets | (3,064) |  |  | (2,702) |  |  | (721) |  |  | (631) |
Amortization of net loss | 2,501 |  |  | 1,294 |  |  | 591 |  |  | 514 |
Amortization of prior service cost | — |  |  | — |  |  | 44 |  |  | 95 |
Net periodic benefit cost | $ | 4,982 |  |  | $ | 3,690 |  |  | $ | 2,193 |  |  | $ | 2,085 |
| Domestic Plans |  | Foreign Plans
Six Months Ended June 30, | 2021 |  | 2020 |  | 2021 |  | 2020
Service cost | $ | 8,168 |  |  | $ | 7,139 |  |  | $ | 4,149 |  |  | $ | 3,535 |
Interest cost | 3,215 |  |  | 3,523 |  |  | 426 |  |  | 680 |
Expected return on plan assets | (6,137) |  |  | (6,124) |  |  | (1,444) |  |  | (1,265) |
Amortization of net loss | 5,004 |  |  | 2,842 |  |  | 1,180 |  |  | 1,028 |
Amortization of prior service cost | — |  |  | — |  |  | 89 |  |  | 192 |
Net periodic benefit cost | $ | 10,250 |  |  | $ | 7,380 |  |  | $ | 4,400 |  |  | $ | 4,170 |

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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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