Revenues - Additional Information (Details1) $ in Thousands	Jun. 30, 2020 USD ($)
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 2,900
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-07-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 1,722
Remaining performance obligation, satisfaction period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 1,082
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	$ 96
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: 2020-07-01
Disaggregation Of Revenue [Line Items]
Remaining performance obligation	$ 4,566
Remaining performance obligation, satisfaction period	6 months