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Balance Sheet Components Warranty Accrual Activity (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Movement in Standard Product Warranty Accrual [Roll Forward]    
Balance at beginning of period $ 11,205 $ 8,551
Charged to cost of net revenues 3,724 3,133
Actual warranty expenditures (3,140) (1,451)
Balance at end of period $ 11,789 $ 10,233