Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating activities:
Net loss	$ (43,366)	$ (24,301)	$ (51,260)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	13,623	6,044	4,602
Stock-based compensation	47,986	42,443	40,498
Accretion of discount or amortization of premium on investments	(1,637)	(233)	896
Amortization of debt issuance costs	1,611	1,601	568
Loss on fixed asset disposal		57
Induced conversion expense related to convertible notes		2,232	11,333
Settlement and related costs			(460)
Deferred tax expense	(931)	6	8
Revaluation of acquisition-related contingent consideration liability	1,570
Changes in operating assets and liabilities, net of amounts acquired:
Accounts receivable	(3,713)	(14,547)	(10,446)
Inventory	(49,577)	(24,439)	14,371
Prepaid expenses and other assets	1,625	852	(770)
Accounts payable	(12,303)	7,371	2,340
Accrued compensation and employee related benefits	(1,119)	2,683	836
Accrued and other liabilities	(591)	(215)	987
Operating lease right-of-use assets	2,607	3,414	2,792
Operating lease liabilities	(3,308)	(4,126)	(3,528)
Deferred revenue	(1,859)	1,805	(6,294)
Net cash provided by (used in) operating activities	(49,382)	641	6,465
Investing activities:
Purchases of investments		(205,749)	(84,412)
Proceeds from sales of investments	13,372
Proceeds from maturities of investments	144,401	114,750	82,000
Proceeds from sale of property and equipment	234	279
Purchases of intangible assets	(250)
Purchases of property and equipment	(18,592)	(12,079)	(16,230)
Business acquisitions, net of cash acquired	(23,357)
Net cash provided by (used in) investing activities	115,808	(102,799)	(18,642)
Financing activities:
Principal payments on finance lease obligations			(2)
Proceeds from exercise of stock options and employee stock purchase plan	8,736	15,416	17,648
Net cash provided by (used in) financing activities	8,736	(2,148)	112,444
Effect of exchange rate changes on cash and cash equivalents	34
Net increase (decrease) in cash and cash equivalents	75,196	(104,306)	100,267
Cash and cash equivalents
Beginning of period	19,597	123,903	23,636
End of period	94,793	19,597	123,903
Supplemental disclosure of cashflow information:
Cash paid for interest	3,234	3,420	1,559
Purchases of property and equipment not yet paid	1,417	6,245	417
Operating lease liabilities arising from obtaining ROU assets	979
Lease liabilities arising from remeasurement of ROU assets	159
26,396 shares of common stock issued for Voyantic Oy acquisition	3,579
Acquisition-related contingent consideration liability	6,172
Disposal of fully depreciated property and equipment	$ 3,855	199	4,467
2019 Notes
Financing activities:
Payment of 2019 Notes		$ (17,564)	(183,624)
2021 Notes
Financing activities:
Proceeds from issuance of 2021 Notes, net of issuance costs			$ 278,422