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Guarantees (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Guarantees [Abstract]    
Standard warranty period (in years) 1 year  
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance as of January 1, $ 2,186 $ 1,585
Provision for warranties 616 1,495
Claims made (932) (821)
Balance as of September 30, 1,870 2,259
Extended Product Warranty Disclosure [Abstract]    
Product extended warranty expense $ 4,400 $ 4,000