Income Taxes - Summary of Income Tax Provision (Benefit) Reported in Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current provision (benefit)
State, net of state tax credits	$ 70
Total current provision (benefit)	70
Deferred provision (benefit)
Federal	(7,515)	$ 1,377
State and local	(666)	511
Valuation allowance	2,708	$ (1,888)
Total deferred provision (benefit)	(5,473)
Total income tax provision (benefit)	$ (5,403)