Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) Institution	Mar. 31, 2019 USD ($)	Jan. 31, 2020	Dec. 31, 2019 USD ($)
Summary of Significant Accounting Policies
Number of financial institutions | Institution	2
Tax expense (benefit)	$ 0	$ 0
Uncertain tax positions	$ 0			$ 0
Operating lease renewal term			5 years