Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net loss	$ (93,781)	$ (105,511)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense	9,370	10,234
Noncash lease expense	2,712	3,635
Share-based compensation expense	27,256	32,016
Intangible assets amortization	847	842
Investment amortization	(4,742)	(3,527)
Impairment of long-lived assets	7,195
Inventory reserve	1,382	757
Noncash interest expense	1,422	2,807
Other	163	65
Changes in operating assets and liabilities
Accounts receivable, net	2,359	8,464
Inventory	293	(6,542)
Prepaid expenses and other current assets	522	366
Accounts payable and accrued liabilities	(3,534)	(7,938)
Operating lease right-of-use assets and liabilities	(4,785)	(4,462)
Deferred revenue	(2,354)	(13,902)
Other	19	(12)
Net cash used in operating activities	(55,656)	(82,708)
Investing activities
Purchases of property and equipment	(3,240)	(6,621)
Purchases of marketable securities	(136,199)	(188,479)
Proceeds from maturities of marketable securities	189,825	295,402
Net cash provided by investing activities	50,386	100,302
Financing activities
Proceeds from exercise of stock options	74	2,141
Net cash provided by financing activities	74	2,141
Net (decrease) increase in cash, cash equivalents and restricted cash	(5,196)	19,735
Cash, cash equivalents and restricted cash at beginning of year	67,996	92,428
Cash, cash equivalents and restricted cash at end of period	62,800	112,163
Noncash investing activities
Purchases of equipment included in accounts payable and accrued liabilities	315	1,291
Supplemental disclosure of cash flow information
Cash paid for interest	$ 4,383	$ 4,642