Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 374,317	$ 396,465
Accounts receivable (less allowance for credit losses of $248 and $419 as of March 31, 2022 and December 31, 2021, respectively)	22,616	23,786
Inventory	22,669	22,190
Prepaid expenses and other current assets	14,104	6,514
Total current assets	433,706	448,955
Restricted cash	2,577	2,577
Property and equipment, net	19,683	17,960
Intangible assets, net	9,692	10,534
Goodwill	9,323	9,632
Right-of-use assets	29,298	11,491
Other non-current assets	378	378
Total assets	504,657	501,527
Current liabilities:
Accounts payable	4,262	9,209
Accrued compensation and benefits	8,139	13,252
Other accrued expenses	8,024	6,486
Deferred revenue	9,194	6,361
Short term lease liabilities	1,886	1,428
Other current liabilities	268	241
Total current liabilities	31,773	36,977
Deferred revenue, net of current portion	1,222	1,099
Long term lease liabilities	43,563	20,464
Other non-current liabilities	1,691	2,035
Commitments and contingencies (Note 11)
Stockholders' equity:
Common stock, $0.001 par value: Authorized - 120,000,000 shares as of March 31, 2022 and December 31, 2021; issued and outstanding - 36,899,156 and 36,768,035 shares as of March 31, 2022 and December 31, 2021, respectively	37	37
Additional paid-in capital	750,742	745,936
Accumulated other comprehensive (loss) income	(756)	441
Accumulated deficit	(323,615)	(305,462)
Total stockholders' equity	426,408	440,952
Total liabilities and stockholders' equity	$ 504,657	$ 501,527