Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 58,969	$ 86,262
Marketable securities	309,694	30,465
Accounts receivable, less allowance for doubtful accounts of $1.0 million as of March 31, 2022 and $0.8 million as of December 31, 2021	38,471	32,427
Inventory	2,200	2,033
Prepaid expenses	6,086	6,664
Deferred sales commissions	6,708	5,283
Other current assets	917	297
Total current assets	423,045	163,431
Property and equipment, net	11,634	10,287
Operating lease right-of-use assets	25,804	27,489
Investment in unconsolidated joint venture	4,231	4,198
Intangible assets, net	40,871	41,736
Goodwill	255,231	254,672
Other assets	511	773
Total assets	761,327	502,586
Current liabilities:
Accounts payable	9,930	12,718
Accrued expenses	28,195	30,905
Contract liabilities	10,008	7,863
Operating lease liabilities, current portion	5,662	5,549
Finance lease liabilities, current portion		2
Total current liabilities	53,795	57,037
Operating lease liabilities, net of current portion	15,518	16,920
Convertible notes	278,511
Income taxes payable	1,532	1,468
Other liabilities	1,792	1,678
Total liabilities	351,148	77,103
Commitments and contingencies (Note 13)
Stockholders' equity
Additional paid-in capital	602,360	597,641
Accumulated other comprehensive income	104	149
Accumulated deficit	(193,353)	(173,341)
Total stockholders' equity	409,111	424,449
Noncontrolling interest	1,068	1,034
Total equity	410,179	425,483
Total liabilities and stockholders' equity	$ 761,327	$ 502,586