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Product Warranty (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Product Warranty      
Product warranty period 1 year    
Changes in standard product warranty liability      
Balance at January 1 (beginning of year) $ 6,924 $ 4,612  
Warranties issued during the period 7,454 5,277  
Settlements made during the period (4,633) (3,099)  
Changes in estimate of liability for pre-existing warranties during the period (78) (452)  
Balance at September 30 (end of period) 9,667 6,338  
Product warranty classification      
Amount classified as current 8,482 5,741 $ 6,424
Amount classified as long-term 1,185 597  
Total warranty liability $ 9,667 $ 6,338 $ 6,924