Quarterly report pursuant to Section 13 or 15(d)

Warranty Liability - Schedule of Warranty Liability Which is Included in Accrued Expenses on Condensed Consolidated Balance Sheet (Details)

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Warranty Liability - Schedule of Warranty Liability Which is Included in Accrued Expenses on Condensed Consolidated Balance Sheet (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Guarantees And Product Warranties [Abstract]    
Beginning balance $ 1,154 $ 1,103
Additions 1,269 957
Cost of warranty claims (1,187) (856)
Ending balance $ 1,236 $ 1,204