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Legal proceedings update (Details)
$ in Thousands
Jun. 25, 2020
USD ($)
Jun. 23, 2020
patent
Penalty to be paid to DOJ    
Disclosure of contingent liabilities [line items]    
Deferred Prosecution Agreement, period 3 years  
Litigation Settlement, Amount Awarded To Other Party | $ $ 8,925  
US Patent Infringement    
Disclosure of contingent liabilities [line items]    
Number of patents allegedly infringed   12
European Patent Infringement    
Disclosure of contingent liabilities [line items]    
Number of patents allegedly infringed   1