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RETIREMENT AND DEFERRED COMPENSATION PLANS (Schedule of Estimated Benefit Payments to Defined Benefit Plans) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Defined contribution plan - Domestic Plans |  |  |
Defined contribution plan |  |  |
Total contributions by Company | $ 3,100 | $ 3,000 | $ 2,800
Defined contribution plan - Domestic Plans | Maximum |  |  |
Defined contribution plan |  |  |
Employer matching contribution as a percentage of salary | 3.00% |  |
Defined contribution plan - Foreign Plans |  |  |
Defined contribution plan |  |  |
Total contributions by Company | $ 1,900 | $ 2,100 | $ 2,300
Domestic Plans |  |  |
Estimated benefit payments relating to defined benefit plans over the next ten years |  |  |
2017 | 8,156 |  |
2018 | 8,471 |  |
2019 | 8,717 |  |
2020 | 9,407 |  |
2021 | 10,145 |  |
2022 - 2026 | 60,105 |  |
Foreign Plans |  |  |
Estimated benefit payments relating to defined benefit plans over the next ten years |  |  |
2017 | 1,964 |  |
2018 | 1,655 |  |
2019 | 2,449 |  |
2020 | 3,865 |  |
2021 | 2,762 |  |
2022 - 2026 | $ 20,354 |  |

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- Definition Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + 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 (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + 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 (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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