Restructuring

During the three months ended March 31, 2012 we recorded restructuring charges of $0.2 million consisting primarily of facilities related charges. During the three months ended March 31, 2011 we recorded restructuring charges of $2.9 million consisting primarily of employee separation costs and asset impairment charges.

The following table sets forth activity in the restructuring liability for recent restructuring activities for the three months ended March 31, 2012, which is comprised of employee separation costs and facilities-related charges (in thousands):



	Employee separation costs			Facilities related charges			Total
Balance at December 31, 2011	$	2,145		$	30,137		$	32,282
Accruals	—			151			151
Payments	(2,032		)	(2,834		)	(4,866		)
Accretion of sub-lease expense	—			738			738
Balance at March 31, 2012	$	113		$	28,192		$	28,305

We are continuing to assess our facility requirements for our San Diego campus as a result of this and our prior restructurings and could record additional facilities-related charges over the next several quarters.