Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,683,792	$ 1,419,630
Marketable securities	994,346	1,060,488
Accounts receivable, net of allowances of $8,366 and $8,282 as of March 31, 2022 and December 31, 2021, respectively	473,031	653,355
Prepaid expenses and other current assets	56,183	48,090
Total current assets	3,207,352	3,181,563
Property and equipment, net	54,714	53,401
Operating lease right-of-use assets	222,751	227,912
Goodwill and intangible assets, net	60,084	61,115
Other assets	13,289	13,247
Total assets	3,558,190	3,537,238
Current liabilities:
Accounts payable	12,546	17,675
Accrued expenses and other current liabilities	213,019	242,131
Total current liabilities	225,565	259,806
Operating lease liabilities	202,569	209,181
Other liabilities	30,396	29,508
Total liabilities	458,530	498,495
Commitments and contingencies
Stockholders’ equity:
Class A common stock, $0.00001 par value, 6,666,667 shares authorized, 573,585 and 568,228 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively; Class B common stock, $0.00001 par value, 1,333,333 shares authorized, 88,669 and 88,644 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively	7	7
Additional paid-in capital	5,133,804	5,059,528
Accumulated other comprehensive loss	(10,259)	(2,181)
Accumulated deficit	(2,023,892)	(2,018,611)
Total stockholders’ equity	3,099,660	3,038,743
Total liabilities and stockholders’ equity	$ 3,558,190	$ 3,537,238