Interest And Other Expense, Net (Tables)

9 Months Ended

Sep. 30, 2011

Interest And Other Expense, Net [Abstract]

Schedule Of Interest And Other Expense, Net

	Three months ended September 30,						Nine months ended September 30,
	2011			2010			2011			2010
Interest and other income	$	854		$	833		$	1,536		$	2,017
Interest and other expense		(6,266	)		(6,337	)		(21,759	)		(18,516	)
Loss on impairment of investments		—			(198	)		—			(198	)
Total interest and other expense, net	$	(5,412	)	$	(5,702	)	$	(20,223	)	$	(16,697	)