Income Taxes - Schedule of Provision for Income Tax Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Domestic	$ (62,985)	$ (58,718)
International	(93)	(42)
LOSS BEFORE INCOME TAXES	$ (63,078)	$ (58,760)