Income Taxes - Schedule of Components of the Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
State	$ 3	$ 4	$ 0
Foreign	266	34	7
Total current tax expense	269	38	7
Deferred:
Federal	(1,652)	0	0
State	(311)	0	0
Foreign	(178)	0	0
Total deferred tax expense	(2,141)	0	0
Total provision for income taxes	$ (1,872)	$ 38	$ 7