Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Table Presents Our Estimated Future Minimum Rental Payments Under Operating Leases with Non-Cancelable Lease Terms

The following table presents our estimated future minimum rental payments under all operating leases with non-cancelable lease terms having initial terms in excess of one year as of June 30, 2013 (in thousands):

	Total Payments
2013 (remaining six months)	$	5,125
2014		8,494
2015		5,774
2016		10,598
2017		10,598
2018 and thereafter		130,008
Total (1)	$	170,597

(1) Excludes spending on anticipated leasehold improvements on our Needham, Massachusetts lease, including design, development, construction costs, the purchase and installation of equipment, and receipt of related Landlord incentives which we estimate will begin in October 2014.