Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 36,736	$ (5,879)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	20,218	17,880
Stock-based compensation	39,725	27,381
Inventory write-downs	5,250	2,051
Deferred taxes	(35)	2,804
Acquired in-process research and development	18,215	0
Other	2,623	879
Changes in operating assets and liabilities:
Accounts receivable	(6,609)	(57,357)
Inventories	(46,466)	(62,317)
Prepaid expenses and other current and non-current assets	(10,288)	(1,958)
Accounts payable	2,054	13,090
Accrued expenses and other non-current liabilities	(351)	6,165
Proceeds from lease incentives	0	263
Net cash provided by (used in) operating activities	61,072	(56,998)
CASH FLOWS FROM INVESTING ACTIVITIES:
Asset acquisition, net of cash acquired	(988)	0
Purchases of marketable investments	(73,370)	0
Proceeds from sales of marketable investments	0	1,180
Proceeds from maturities of marketable investments	46,070	60,713
Purchases of property and equipment	(11,568)	(15,736)
Other	(500)	0
Net cash provided by (used in) investing activities	(40,356)	46,157
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercises of stock options	4,657	6,293
Proceeds from issuance of stock under employee stock purchase plan	8,385	7,998
Payment of employee taxes related to vested stock	(1,149)	(6,968)
Payments of finance lease obligations	(1,456)	(1,299)
Other	(155)	(137)
Net cash provided by financing activities	10,282	5,887
Effect of foreign exchange rate changes on cash and cash equivalents	(99)	419
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	30,899	(4,535)
CASH AND CASH EQUIVALENTS—Beginning of period	69,858	59,379
CASH AND CASH EQUIVALENTS—End of period	100,757	54,844
NONCASH INVESTING AND FINANCING ACTIVITIES:
Right-of-use assets obtained in exchange for lease obligations	1,486	51,495
Right-of-use assets obtained in exchange for finance lease obligations	531	278
Purchase of property and equipment funded through accounts payable and accrued liabilities	1,275	1,847
Fair value of common stock issued as consideration in connection with an acquisition	17,227	0
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for amounts included in the measurement of operating lease liabilities	14,985	13,017
Cash paid for income taxes	$ 4,029	$ 2,503