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Financial Statements Details - Deferred Revenue (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Movement in Deferred Revenue [Roll Forward]  
Deferred revenue, beginning balance $ 587,227
Less: Revenue recognized from beginning balance (351,617)
Add: Deferral of revenue in current period, excluding amounts recognized during the period 339,678
Deferred revenue, ending balance $ 575,288