Other Long Term Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Other Long Term Liabilities [Line Items]
Derivative liability	$ 14,452	$ 4,059
Other Noncurrent Liabilities
Other Long Term Liabilities [Line Items]
Unrecognized tax benefit liabilities and long term notes payables	13,000	10,500
Derivative liability	$ 14,500	$ 4,100