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Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Movement in Standard Product Warranty Accrual [Roll Forward]    
Product warranty liability, beginning $ 4,711 $ 2,984
Warranty charges incurred, net (701) (766)
Provision for warranty charges, net of adjustments 1,285 1,033
Acquired warranty 0 100
Product warranty liability, ending 5,295 3,351
Less: current portion of product warranty liability (2,441) (1,828)
Non-current portion of product warranty liability $ 2,854 $ 1,523