Summary of Significant Accounting Policies - Additional Information (Details 1) $ in Thousands	Dec. 31, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Estimated revenue expected to be recognized in the future	$ 2,929
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-01-01
Summary Of Significant Accounting Policies [Line Items]
Estimated revenue expected to be recognized in the future	$ 1,820
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Summary Of Significant Accounting Policies [Line Items]
Estimated revenue expected to be recognized in the future	$ 1,106
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Summary Of Significant Accounting Policies [Line Items]
Estimated revenue expected to be recognized in the future	$ 3
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year