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Guarantees (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 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 355 486
Claims made (363) (343)
Balance as of March 31, 2,178 1,728
Extended Product Warranty Disclosure [Abstract]    
Product extended warranty expense $ 1,500 $ 1,400