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Balance Sheet Information - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Apr. 30, 2021
Mar. 31, 2020
Mar. 31, 2019
Jul. 31, 2019
Nov. 26, 2018
Property, Plant and Equipment [Line Items]          
Payments to acquire property, plant, and equipment   $ 1,900 $ 1,400    
Depreciation and amortization   2,645 2,679    
Amortization of intangible assets   700 1,500    
Forecast | ValidSoft Note Receivable          
Property, Plant and Equipment [Line Items]          
Proceeds from collection of notes receivable $ 300        
Property, Plant and Equipment          
Property, Plant and Equipment [Line Items]          
Depreciation and amortization   $ 2,000 1,200    
Yonder Media Mobile          
Property, Plant and Equipment [Line Items]          
Execution of senior secured promissory note     $ 2,700 $ 3,400 $ 500
Yonder Media Mobile | 2019 Notes          
Property, Plant and Equipment [Line Items]          
Interest rate (as percent)     12.00%   6.00%
ValidSoft Ltd          
Property, Plant and Equipment [Line Items]          
Interest rate (as percent)   5.00%