401(K) Savings Plan - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Contribution Plan Disclosure [Line Items]
Defined contribution savings plan name	401(k)
Defined Contribution Plan, Sponsor Location [Extensible List]	country:US
Defined Benefit Plan, Tax Status [Extensible List]	us-gaap:QualifiedPlanMember
Employer matching contribution, percent of match	50.00%
Contributions made under the savings plan	$ 399	$ 339	$ 207
Maximum
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of employees' gross pay	6.00%