EMPLOYEE BENEFIT PLANS Pension Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019		Dec. 31, 2018
Defined Benefit Plan Disclosure
Service Cost	$ 10,792	$ 4,602	[1]	$ 5,242
Interest cost	11,949	4,362	[1]	4,137
Expected return on plan assets	(20,054)	(5,695)		(5,969)
Recognized actuarial gain	0	(63)		(46)
Settlement	(144)	0		0
Total net periodic pension (benefit) cost	2,543	3,206		3,364
United States
Defined Benefit Plan Disclosure
Service Cost	1,763	0		0
Interest cost	4,787	0		0
Expected return on plan assets	(8,395)	0		0
Recognized actuarial gain	0	0		0
Settlement	0	0		0
Total net periodic pension (benefit) cost	(1,845)	0		0
Foreign Plan [Member]
Defined Benefit Plan Disclosure
Service Cost	9,029	4,602	[1]	5,242
Interest cost	7,162	4,362	[1]	4,137
Expected return on plan assets	(11,659)	(5,695)		(5,969)
Recognized actuarial gain	0	(63)		(46)
Settlement	(144)	0		0
Total net periodic pension (benefit) cost	$ 4,388	$ 3,206		$ 3,364

[1] For 2019, the changes in benefit obligations, plan assets and funded status relate to the EECOL Plan and the EECOL SERP