STOCKHOLDERS' EQUITY (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Preferred Stock
Preferred stock authorized for issuance (in shares)	10,000,000
Par value of preferred stock authorized for issuance (in dollars per share)	$ 1.00
Changes in accumulated other comprehensive income (loss), net of tax
Beginning Balance	$ (14,503)	$ (3,161)	$ (10,227)
Before-Tax Amount	(18,184)	(17,007)	12,593
Tax Benefit (Expense)	7,807	5,665	(5,527)
Net-of-Tax Amount	(10,377)	(11,342)	7,066
Ending Balance	(24,880)	(14,503)	(3,161)
Pension and other post-retirement liability adjustment
Changes in accumulated other comprehensive income (loss), net of tax
Beginning Balance	(33,600)	(22,161)	(24,420)
Before-Tax Amount	(20,165)	(18,678)	4,315
Tax Benefit (Expense)	7,807	7,239	(2,056)
Net-of-Tax Amount	(12,358)	(11,439)	2,259
Ending Balance	(45,958)	(33,600)	(22,161)
Foreign currency translation adjustment
Changes in accumulated other comprehensive income (loss), net of tax
Beginning Balance	19,097	21,622	21,937
Before-Tax Amount	1,981	(2,525)	(315)
Net-of-Tax Amount	1,981	(2,525)	(315)
Ending Balance	21,078	19,097	21,622
Change in the fair value of interest rate swap contracts
Changes in accumulated other comprehensive income (loss), net of tax
Beginning Balance		(2,622)	(7,744)
Before-Tax Amount		4,196	8,593
Tax Benefit (Expense)		(1,574)	(3,471)
Net-of-Tax Amount		2,622	5,122
Ending Balance			$ (2,622)