CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 313,777	$ 108,895
Available-for-sale securities	1,508,066	923,201
Accounts receivable, net	95,543	63,499
Contract assets	6,079	3,538
Restricted cash short-term	2,958	2,591
Prepaid expenses and other current assets	29,433	28,230
Total current assets	1,955,856	1,129,954
Property and equipment, net	183,736	123,688
Goodwill	23,530	17,167
Acquired intangible assets, net	1,254	2,800
Operating lease right-of-use assets	130,314	43,148
Deferred contract acquisition costs, noncurrent	70,320	44,176
Restricted cash	4,223	6,660
Other noncurrent assets	2,838	13,058
Total assets	2,372,071	1,380,651
Current liabilities:
Accounts payable	26,086	14,485
Accrued expenses and other current liabilities	38,085	20,217
Accrued compensation	65,905	25,410
Operating lease liabilities	25,175	17,717
Liability for early exercise of unvested stock options	4,651	8,603
Deferred revenue	116,546	54,945
Current portion of convertible senior notes, net	12,117	0
Total current liabilities	288,565	141,377
Convertible senior notes, net	1,146,877	383,275
Operating lease liabilities, noncurrent	109,037	27,309
Deferred revenue, noncurrent	4,680	1,891
Other noncurrent liabilities	7,114	9,859
Total liabilities	1,556,273	563,711
Commitments and contingencies (Note 8)
Temporary equity, convertible senior notes	4,439	0
Stockholders’ Equity
Additional paid-in capital	1,494,512	1,236,993
Accumulated deficit	(680,829)	(420,520)
Accumulated other comprehensive income (loss)	(2,645)	163
Total stockholders’ equity	811,359	816,940
Total liabilities, temporary equity and stockholders’ equity	2,372,071	1,380,651
Class A common stock
Stockholders’ Equity
Common stock	277	249
Class B common stock
Stockholders’ Equity
Common stock	$ 44	$ 55