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Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Movement in Standard Product Warranty Accrual [Roll Forward]    
Product warranty liability, beginning $ 2,984 $ 4,555
Warranty charges incurred, net (766) (433)
Provision for warranty charges, net of adjustments 1,033 (398)
Acquired warranty 100 0
Product warranty liability, ending 3,351 3,724
Less: current portion of product warranty liability (1,828) (2,168)
Non-current portion of product warranty liability $ 1,523 $ 1,556