OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Pension and postretirement benefits [Abstract]
Amortization of net actuarial loss, Gross Amount	$ 1,934	[1]	$ 1,794	[1]	$ 3,840	[1]	$ 3,395	[1]
Amortization of net actuarial loss, Income Tax (Provision) Benefit	(740)	[1]	(704)	[1]	(1,469)	[1]	(1,316)	[1]
Amortization of net actuarial loss, Net Amount	1,194	[1]	1,090	[1]	2,371	[1]	2,079	[1]
Actuarial gains, Gross Amount	(1,134)	[1]	(3,851)	[1]	(1,134)	[1]	(3,851)	[1]
Actuarial gains, Income Tax (Provision) Benefit	434	[1]	1,493	[1]	434	[1]	1,493	[1]
Actuarial gains, Net Amount	(700)	[1]	(2,358)	[1]	(700)	[1]	(2,358)	[1]
Foreign currency translation adjustments, Gross Amount	44	[1]	152	[1]	249	[1]	447	[1]
Foreign currency translation adjustments, Income Tax (Provision) Benefit	0	[1]	0	[1]	0	[1]	0	[1]
Foreign currency translation adjustments, Net Amount	44	[1]	152	[1]	249	[1]	447	[1]
Change in fair value of derivative instruments [Abstract]
Unrealized gains (losses), Gross Amount	(7)	[2]	4,258	[2]	2,882	[2]	7,974	[2]
Unrealized gains, Income Tax (Provision) Benefit	(3)	[2]	(1,520)	[2]	(1,009)	[2]	(2,826)	[2]
Unrealized gains, Net Amount	(4)	[2]	2,738	[2]	1,873	[2]	5,148	[2]
Reclassified to net earnings, Gross Amount	0	[2]	(2,056)	[2]	(1,389)	[2]	(4,102)	[2]
Reclassified to net earnings, Income Tax (Provision) Benefit	0	[2]	738	[2]	486	[2]	1,454	[2]
Reclassified to net earnings, Net Amount	0	[2]	(1,318)	[2]	(903)	[2]	(2,648)	[2]
Total other comprehensive income (loss), Gross Amount	837	[2]	297	[2]	4,448	[2]	3,863	[2]
Total other comprehensive income (loss), Income Tax (Provision) Benefit	(303)	[2]	7	[2]	(1,558)	[2]	(1,195)	[2]
Total comprehensive income (loss), net of taxes	$ 534	[2]	$ 304	[2]	$ 2,890	[2]	$ 2,668	[2]

[1] Actuarial gains (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)