Revenue by Geographic Area - Revenue by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Abstract]
Revenue	$ 447,969	$ 295,066	$ 1,213,686	$ 803,244
United States
Disaggregation of Revenue [Abstract]
Revenue	328,056	210,986	881,984	572,537
International
Disaggregation of Revenue [Abstract]
Revenue	$ 119,913	$ 84,080	$ 331,702	$ 230,707

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details