Revenue Recognition - Additional Information (Details 1) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Revenue Recognition [Line Items]
Estimated revenue expected to be recognized in the future	$ 2,626
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01
Revenue Recognition [Line Items]
Estimated revenue expected to be recognized in the future	$ 602
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 months
Revenue For Future Outstanding Performance Obligations	$ 2,626
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Revenue Recognition [Line Items]
Estimated revenue expected to be recognized in the future	$ 1,860
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Revenue Recognition [Line Items]
Estimated revenue expected to be recognized in the future	$ 138
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-01-01
Revenue Recognition [Line Items]
Estimated revenue expected to be recognized in the future	$ 26
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year