Commitments and Contingencies (Future Minimum Payments, Operating and Capital Leases) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Capital Leases
2017	$ 1,644
2018	1,249
2019	628
2020	78
2021	0
Thereafter	0
Total minimum lease payments	3,599
Less amount representing interest	(418)
Present value of capital lease obligations	3,181
Less current portion of capital lease obligations	(1,644)
Long-term capital lease obligations	1,537
Operating Leases
2017	1,182
2018	900
2019	916
2020	259
2021	0
Thereafter	0
Total minimum lease payments	3,257
Purchase Commitments
2017	2,471
2018	0
2019	0
2020	0
2021	0
Thereafter	0
Total minimum lease payments	$ 2,471