Revenues - Additional Information (Details1) $ in Thousands	Sep. 30, 2020 USD ($)
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 2,388
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 900
Remaining performance obligation, satisfaction period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 1,372
Remaining performance obligation, satisfaction period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 116
Remaining performance obligation, satisfaction period	1 year
Google [Member]
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 9,132
Google [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 2,283
Remaining performance obligation, satisfaction period	3 months