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Product and Geographic Sales Information - Revenue by Product Group (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Segment Reporting Information [Line Items]        
Revenues $ 442,117 $ 284,360 $ 1,316,192 $ 798,452
Deferred revenues adjustment $ 72 $ 2,107 $ 4,465 $ 7,421