CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 329,525	$ 338,740
Accounts receivable (net of allowance for expected credit losses of $442 and $118 as of June 30, 2023 and December 31, 2022, respectively)	24,423	19,017
Inventory	18,156	16,786
Prepaid expenses and other current assets	6,954	6,860
Total current assets	379,058	381,403
Restricted cash	2,686	2,597
Property and equipment, net	18,328	20,162
Intangible assets, net	6,476	7,516
Operating lease right-of-use assets	20,380	21,223
Other non-current assets	2,282	1,298
Total assets	429,210	434,199
Current liabilities:
Accounts payable	3,238	3,836
Accrued compensation and benefits	7,525	10,658
Accrued expenses and other current liabilities	6,777	5,133
Deferred revenue	10,421	8,644
Operating lease liabilities	3,986	2,687
Total current liabilities	31,947	30,958
Deferred revenue, net of current portion	1,304	1,415
Lease liabilities, net of current portion	39,378	41,417
Other non-current liabilities	1,225	1,469
Total liabilities	73,854	75,259
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock, $0.001 par value, per share: Authorized shares: 120,000; Issued and outstanding: 37,566 and 37,280 shares at June 30, 2023 and December 31, 2022, respectively	37	37
Additional paid-in capital	772,473	763,688
Accumulated other comprehensive loss	(2,825)	(2,623)
Accumulated deficit	(414,329)	(402,162)
Total stockholders' equity	355,356	358,940
Total liabilities and stockholders' equity	$ 429,210	$ 434,199