PENSIONS AND OTHER POST-RETIREMENT BENEFITS (Details) (USD $)		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Dec. 31, 2013	Sep. 30, 2014 Pension Benefits	Sep. 30, 2013 Pension Benefits	Sep. 30, 2014 Pension Benefits	Sep. 30, 2013 Pension Benefits	Sep. 30, 2014 Pension Benefits Cost of sales [Member]	Sep. 30, 2013 Pension Benefits Cost of sales [Member]	Sep. 30, 2014 Pension Benefits Cost of sales [Member]	Sep. 30, 2013 Pension Benefits Cost of sales [Member]	Sep. 30, 2014 Pension Benefits Selling, general, and administrative expenses [Member]	Sep. 30, 2013 Pension Benefits Selling, general, and administrative expenses [Member]	Sep. 30, 2014 Pension Benefits Selling, general, and administrative expenses [Member]	Sep. 30, 2013 Pension Benefits Selling, general, and administrative expenses [Member]	Sep. 30, 2014 Other Benefits	Sep. 30, 2013 Other Benefits	Sep. 30, 2014 Other Benefits	Sep. 30, 2013 Other Benefits
Components of the net periodic benefit cost
Service cost		$ 1,734,000	$ 2,002,000	$ 5,202,000	$ 6,006,000									$ 6,000	$ 9,000	$ 18,000	$ 27,000
Interest cost		3,335,000	3,016,000	10,005,000	9,048,000									91,000	81,000	273,000	243,000
Expected return on plan assets		(3,936,000)	(3,478,000)	(11,808,000)	(10,434,000)									0	0	0	0
Amortization of prior service cost		3,000	4,000	9,000	12,000									(561,000)	(844,000)	(1,683,000)	(2,532,000)
Recognized actuarial loss		502,000	2,156,000	1,506,000	6,468,000									154,000	192,000	462,000	576,000
Net periodic benefit cost		1,638,000	3,700,000	4,914,000	11,100,000	900,000	2,200,000	2,800,000	6,700,000	700,000	1,500,000	2,100,000	4,400,000	(310,000)	(562,000)	(930,000)	(1,686,000)
Pension and Other Postretirement Defined Benefit Plans, Current Liabilities	$ 12,300,000