Property and Equipment - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Property and equipment, net of accumulated depreciation	$ 13,757		$ 13,757		$ 9,475
Other liabilities	$ 832		$ 832		$ 1,148
Capital leases interest rate effective percentage, minimum	3.00%		3.00%
Capital leases interest rate effective percentage, maximum	12.00%		12.00%
Depreciation	$ 838	$ 470	$ 2,394	$ 1,247
Assets Held under Capital Leases
Property, Plant and Equipment [Line Items]
Property and equipment, net of accumulated depreciation	427		427
Other liabilities	41		41
Leasehold Improvements Paid by Others
Property, Plant and Equipment [Line Items]
Property and equipment, net of accumulated depreciation	$ 1,000		$ 1,000