OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Pension and postretirement benefits [Abstract]
Amortization of net actuarial loss, Gross Amount	$ 1,906	[1]	$ 1,601	[1]
Amortization of net actuarial loss, Income Tax (Provision) Benefit	(729)	[1]	(612)	[1]
Amortization of net actuarial loss, Net Amount	1,177	[1]	989	[1]
Actuarial gains, Gross Amount	0	[1]	0	[1]
Actuarial gains, Income Tax (Provision) Benefit	0	[1]	0	[1]
Actuarial gains, Net Amount	0	[1]	0	[1]
Foreign currency translation adjustments, Gross Amount	205		295
Foreign currency translation adjustments, Income Tax (Provision) Benefit	0		0
Foreign currency translation adjustments, Net Amount	205		295
Change in fair value of derivative instruments [Abstract]
Unrealized gains, Gross Amount	2,889	[2]	3,716	[2]
Unrealized gains, Income Tax (Provision) Benefit	(1,012)	[2]	(1,306)	[2]
Unrealized gains, Net Amount	1,877	[2]	2,410	[2]
Reclassified to net earnings, Gross Amount	(1,389)	[2]	(2,046)	[2]
Reclassified to net earnings, Income Tax (Provision) Benefit	486	[2]	716	[2]
Reclassified to net earnings, Net Amount	(903)	[2]	(1,330)	[2]
Total other comprehensive income (loss), Gross Amount	3,611		3,566
Total other comprehensive income (loss), Income Tax (Provision) Benefit	(1,255)		(1,202)
Total comprehensive income (loss), net of taxes	$ 2,356		$ 2,364

[1] Actuarial losses are amortized into costs of sales and operating expenses or selling, general and administrative expenses as appropriate. (See Note 12 – Retirement Plans)

[2] Reclassifications to net earnings of derivatives qualifying as effective hedges are recognized in interest expense or costs of sales and operating expenses as appropriate. (See Note 6 – Derivative Instruments)