Leases (Tables)

12 Months Ended

Dec. 31, 2011

Leases [Abstract]

Gross carrying value by major asset class and accumulated depreciation

	December 31,
	2011			2010
Building and leasehold improvements	$	2,117		$	2,117
Furniture, fixtures and other equipment		195			195
Total assets recorded under capital leases		2,312			2,312
Less: accumulated depreciation		(464	)		(54	)
Net assets recorded under capital leases	$	1,848		$	2,258

Future minimum payments for capital leases

Years ending December 31,
2012	$	5,028
2013		5,129
2014		5,191
2015		5,280
2016		4,034
Total minimum payments required	$	24,662
Less: amount representing interest		(7,648	)
Present value of future minimum lease payments	$	17,014
Less: current portion		(2,432	)
Non-current portion	$	14,582

Future minimum lease payments under the Sublease

Years ending December 31,
2012	$	480
2013		200
2014		1,509
2015		3,667
2016		3,777
2017 and thereafter		12,367
Total future minimum lease payments	$	22,000