FINANCIAL ASSETS AND FINANCIAL LIABILITIES MEASURED AT FAIR VALUE (Tables)

12 Months Ended

Dec. 31, 2011

FINANCIAL ASSETS AND FINANCIAL LIABILITIES MEASURED AT FAIR VALUE

Carrying values and estimated fair values of long-term debt, including current maturities

	December 31, 2011				December 31, 2010
	Carrying		Fair Value		Carrying		Fair Value
(in thousands)	Value		(Level 2)		Value		(Level 2)
Total long-term debt	$	1,567,532	$	1,702,373	$	1,285,674	$	1,388,019

Fair values for derivatives

	Fair Value			Fair Value
	As of			As of
	December 31, 2011			December 31, 2010
(in thousands)	(Level 2)			(Level 2)
Currency swaps — net asset (liability) position	$	—		$	(1,368	)
Forward exchange contracts — net asset (liability) position	(3		)	13
Interest rate swaps — net asset (liability) position	3,268			—