EMPLOYEE BENEFIT PLANS Benefit payments (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Defined Benefit Plan Disclosure
Defined Benefit Plan, Expected Future Benefit Payment, Year One	$ 38,400
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	21,143
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	22,678
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	24,191
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	25,795
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	161,300
United States
Defined Benefit Plan Disclosure
Defined Benefit Plan, Expected Future Benefit Payment, Year One	28,527
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	11,165
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	12,065
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	13,046
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	13,807
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	78,122
Foreign Plan [Member]
Defined Benefit Plan Disclosure
Defined Benefit Plan, Expected Future Benefit Payment, Year One	9,873
Defined Benefit Plan, Expected Future Benefit Payment, Year Two	9,978
Defined Benefit Plan, Expected Future Benefit Payment, Year Three	10,613
Defined Benefit Plan, Expected Future Benefit Payment, Year Four	11,145
Defined Benefit Plan, Expected Future Benefit Payment, Year Five	11,988
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years	$ 83,178