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Certain Balance Sheet Components Inventories (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Inventory, Net [Abstract]    
Raw materials $ 133,285 $ 120,861
Work in process 10,473 11,105
Finished goods 78,092 95,930
Total inventories $ 221,850 $ 227,896