Revenue (Tables)

12 Months Ended

Dec. 31, 2020

The contract balances include the following (in thousands):

	As of December 31,
	2020		2019		2018
Accounts receivable, net	$	523,852	$	332,673	$	183,078
Contract assets (included in Prepaid expenses and other current assets)		7,431		3,588		753

Deferred revenue, current portion		55,465		39,861		45,442
Deferred revenue, non-current portion		21,283		15,370		19,594
Total deferred revenue	$	76,748	$	55,231	$	65,036