Interest income / (expense), net (Tables)

12 Months Ended

Dec. 31, 2012

Components of Interest Income Expense

For the years ended December 31, 2012, 2011 and 2010 respectively, the following items are included in Interest income / (expense), net:

	Year ended December 31,
	2012			2011			2010
Interest income	$	2,868		$	1,380		$	4,450
Interest expense		(109,452	)		(111,538	)		(105,775	)
Total interest/(expense), net	$	(106,584	)	$	(110,158	)	$	(101,325	)