Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 46,833	$ 86,262
Marketable securities	309,830	30,465
Accounts receivable, less allowance for doubtful accounts of $1.5 million as of June 30, 2022 and $0.8 million as of December 31, 2021	43,991	32,427
Inventory	1,727	2,033
Prepaid expenses	7,724	6,664
Other current assets	4,118	5,580
Total current assets	414,223	163,431
Property and equipment, net	13,443	10,287
Operating lease right-of-use assets	24,029	27,489
Investment in unconsolidated joint venture	4,301	4,198
Intangible assets, net	41,147	41,736
Goodwill	259,971	254,672
Other assets	627	773
Total assets	757,741	502,586
Current liabilities:
Accounts payable	14,175	12,718
Accrued expenses	29,157	30,905
Contract liabilities	10,725	7,863
Operating lease liabilities, current portion	5,723	5,549
Finance lease liabilities, current portion		2
Total current liabilities	59,780	57,037
Operating lease liabilities, net of current portion	14,053	16,920
Convertible notes	278,972
Income taxes payable	1,532	1,468
Other liabilities	1,789	1,678
Total liabilities	356,126	77,103
Commitments and contingencies (Note 13)
Stockholders' equity
Preferred stock, $0.000001 par value. Authorized; 50,000,000 shares; zero shares issued and outstanding as of June 30, 2022 and December 31, 2021, respectively
Additional paid-in capital	610,331	597,641
Accumulated other comprehensive income	85	149
Accumulated deficit	(209,906)	(173,341)
Total stockholders' equity	400,510	424,449
Noncontrolling interest	1,105	1,034
Total equity	401,615	425,483
Total liabilities and stockholders' equity	757,741	502,586
Class A Common Stock
Stockholders' equity
Common stock
Class B Common Stock
Stockholders' equity
Common stock