Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies

Schedule of future minimum annual lease payments, and sublease rental income

(In thousands of dollars)	Future Minimum Lease Payments		Sublease Rental Income		Net Lease Payments
2013 (remaining)	$	3,889	$	775	$	3,114
2014	6,590		860		5,730
2015	5,943		502		5,441
2016	5,487		—		5,487
2017	5,447		—		5,447
Thereafter	38,364		—		38,364
Total	$	65,720	$	2,137	$	63,583