Leases - Net Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Total ROU operating lease assets	$ 11,142
Total ROU financing lease assets	698
Total lease assets	11,840	$ 0
Total current operating lease obligation	3,434
Total current financing lease obligation	274
Total current lease obligations	3,708	0
Total long term operating lease obligation	10,089
Total long term financing lease obligation	411
Total long term lease obligation	10,500	$ 5,213
Operating lease accumulated depreciation	1,372
Finance lease accumulated depreciation	$ 99