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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ 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=82843861&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

+ References

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

+ References

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

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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, 2017	Dec. 31, 2016	Dec. 31, 2015
United States
Defined contribution plan
Total contributions by Company	$ 3,300	$ 3,100	$ 3,000
Estimated benefit payments relating to defined benefit plans over the next ten years
2018	9,960
2019	9,922
2020	10,471
2021	11,037
2022	11,634
2023 - 2027	$ 67,818
United States \| Maximum
Defined contribution plan
Employer matching contribution as a percentage of salary	3.00%
Foreign Plans
Defined contribution plan
Total contributions by Company	$ 2,200	$ 1,900	$ 2,100
Estimated benefit payments relating to defined benefit plans over the next ten years
2018	2,194
2019	3,344
2020	3,510
2021	3,455
2022	3,638
2023 - 2027	$ 30,389