Segment and Geographic Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments | segment			1
Net revenue	$ 18,742	$ 54,731	$ 42,958	$ 105,037
Percentage of revenue by geographic segments	100.00%	100.00%	100.00%	100.00%
Long-lived assets	$ 715,081		$ 715,081		$ 1,051,258
Percentage of long-lived assets by geographic segments	100.00%		100.00%		100.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 17,446	$ 51,267	$ 39,602	$ 97,611
Percentage of revenue by geographic segments	93.10%	93.70%	92.20%	92.90%
Long-lived assets	$ 712,152		$ 712,152		$ 1,047,098
Percentage of long-lived assets by geographic segments	99.60%		99.60%		99.60%
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 1,252	$ 2,738	$ 3,147	$ 5,818
Percentage of revenue by geographic segments	6.70%	5.00%	7.30%	5.50%
Long-lived assets	$ 2,929		$ 2,929		$ 4,160
Percentage of long-lived assets by geographic segments	0.40%		0.40%		0.40%
Rest of world
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenue	$ 44	$ 726	$ 209	$ 1,608
Percentage of revenue by geographic segments	0.20%	1.30%	0.50%	1.60%