Interest Expense (Income) (Tables)

12 Months Ended

Dec. 31, 2011

Interest Expense (Income) [Abstract]

Components Of Net Interest Expense

	Year Ended December 31,
	2011			2010			2009
Interest expense	$	178,812		$	161,140		$	149,922
Interest income		(12,718	)		(8,047	)		(15,170	)
Interest expense, net	$	166,094		$	153,093		$	134,752