Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities
Net loss	$ (47,533)	$ (57,700)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense	4,791	5,004
Noncash lease expense	1,369	1,805
Share-based compensation expense	14,298	14,671
Intangible assets amortization	423	419
Investment amortization	(2,643)	(1,609)
Inventory reserve	249	1,080
Noncash interest expense	885	1,648
Other	114	5
Changes in operating assets and liabilities
Accounts receivable, net	(4,052)	9,085
Inventory	1,111	(6,607)
Prepaid expenses and other current assets	1,520	(352)
Accounts payable and accrued liabilities	(3,941)	(15,878)
Operating lease right-of-use assets and liabilities	(2,549)	(2,223)
Deferred revenue	(2,393)	(8,486)
Other	(2)	(14)
Net cash used in operating activities	(38,353)	(59,152)
Investing activities
Purchases of property and equipment	(1,511)	(2,924)
Purchases of marketable securities	(53,480)	(89,097)
Proceeds from maturities of marketable securities	99,500	155,000
Net cash provided by investing activities	44,509	62,979
Financing activities
Proceeds from exercise of stock options	44	672
Net cash provided by financing activities	44	672
Net increase in cash, cash equivalents and restricted cash	6,200	4,499
Cash, cash equivalents and restricted cash at beginning of year	67,996	92,428
Cash, cash equivalents and restricted cash at end of period	74,196	96,927
Noncash investing activities
Purchases of equipment included in accounts payable and accrued liabilities	1,115	1,651
Supplemental disclosure of cash flow information
Cash paid for interest	$ 2,289	$ 2,760