Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows used in operating activities
Net loss	$ (86,837)	$ (158,722)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	257	343
Share-based compensation	23,665	20,103
Stock issued for services	45	46
Amortization of premiums and accretion of discounts on investment securities, net	(3,670)	(947)
Changes in operating assets and liabilities:
Accounts receivable, net	(20,775)	(26,820)
Inventory	(17,975)	(17,074)
Prepaid expenses and other assets	(417)	(12,535)
Accounts payable	(2,662)	2,058
Accrued and other current liabilities	7,799	6,201
Accrued customer programs	6,089	10,519
Accrued employee benefits	(1,373)	(2,512)
Operating lease liabilities, net	(1,014)	1,698
Net cash used in operating activities	(96,868)	(177,642)
Cash flows provided by (used in) investing activities
Purchases of investments	(174,411)	(552,782)
Maturities of investments	252,697	268,665
Purchases of property and equipment	0	(689)
Net cash provided by (used in) investing activities	78,286	(284,806)
Cash flows provided by financing activities
Proceeds of public offering, net	0	433,725
Proceeds from exercise of stock options	12,225	13,593
Net cash provided by financing activities	12,225	447,318
Net decrease in cash, cash equivalents, and restricted cash	(6,357)	(15,130)
Cash, cash equivalents, and restricted cash at beginning of period	150,365	93,765
Cash, cash equivalents, and restricted cash at end of period	144,008	78,635
Non-cash investing and financing activities
Right of use assets under operating leases	$ 0	$ 4,167