Commitments and Contingencies - Future Minimum Payments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Sep. 30, 2015
Operating leases
Total	$ 27,693
2016	4,310
2017	4,890
2018	4,572
2019	4,260
2020	4,386
More than 5 years	5,275
Purchase commitments
Total	300
2016	300			$ 300
2017	0			$ 600
2018	0
2019	0
2020	0
More than 5 years	0
Capital leases
Total	118
2016	43
2017	43
2018	32
2019	0
2020	0
More than 5 years	0
Operating and capital leases and purchase commitments
Total operating and capital leases and purchase commitments	28,111
2016	4,653
2017	4,933
2018	4,604
2019	4,260
2020	4,386
More than 5 years	5,275
Rent expense	$ 4,900	$ 2,500	$ 1,000