RETIREMENT AND POSTRETIREMENT BENEFIT PLANS (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2016		Jun. 30, 2015	Jun. 30, 2016		Jun. 30, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 4,439		$ 5,038	$ 8,869		$ 10,460
Interest cost	6,018		10,413	12,029		20,744
Expected return on plan assets	(8,894)		(16,242)	(17,758)		(31,980)
Amortization of prior service cost	(99)		(156)	(198)		(312)
Amortization of net loss	3,648	[1]	5,872	6,314	[2]	11,692
Defined benefit plans	5,112		4,925	9,256		10,604
Multi-employer plans	193		211	395		428
Defined contribution plans	2,192		2,945	4,161		5,961
Total pension cost	7,497		$ 8,081	13,812		$ 16,993
Voluntarily contribution to defined benefit plans in United States				20,000
VENEZUELA
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Amortization of net loss	$ 959			$ 959

[1] The amortization of net loss includes a $959 charge resulting from the deconsolidation of the Venezuelan subsidiary during the three and six months ended June 30, 2016.

[2] The amortization of net loss includes a $959 charge resulting from the deconsolidation of the Venezuelan subsidiary during the three and six months ended June 30, 2016.