Operating Leases and Subleases (Tables)

12 Months Ended

Dec. 31, 2011

Operating Leases and Subleases

Schedule of future minimum lease payments under non-cancelable operating lease

(in thousands)
Years ending December 31:
2012	$	5,429
2013		5,029
2014		4,859
2015		5,005
2016		5,156
Thereafter		18,806
Total	$	44,284

Summary of expenses and income associated with operating leases

	Year Ended December 31,
(in thousands)	2011			2010			2009
Rent expense	$	6,702		$	6,779		$	6,559
Sublease income, net		(637	)		(622	)		(580	)