Commitments and Contingencies - Future Minimum Annual Lease Payments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Leases [Abstract]
Operating leases Remainder of 2013	$ 1,014
Operating leases 2014	3,431
Operating leases 2015	2,768
Operating leases 2016	1,369
Operating leases 2017	216
Operating leases Thereafter	15
Operating leases, Future Minimum Payments Due, Total	8,813
Capital leases Remainder of 2013	132
Capital leases 2014	527
Capital leases 2015	466
Capital leases 2016	423
Capital leases 2017	82
Capital leases Thereafter	0
Total Capital leases	1,630
Less: amount representing interest	(192)
Present value of minimum lease payments	1,438
Current portion of capital leases	(430)
Capital leases, less current portion	$ 1,008