Income Taxes - Income Tax Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income tax benefit at statutory rate	$ (14,394)	$ (6,932)
Nondeductible expenses	2,181	258
Change in deferred tax valuation allowance	20,989	(1,636)
Change in uncertain tax position	(8,282)	8,270
Foreign taxes	0	(472)
State taxes	(467)	46
Other	(171)	63
Total income tax (benefit) expense	$ (144)	$ (403)