Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net loss	$ (122,317)	$ (115,429)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	23,502	19,644
Depreciation and amortization	11,434	5,151
Amortization of deferred financing costs	1,142	1,105
Amortization of premium on short-term investments, net	99	1,481
Non-cash operating lease cost	3,289	3,012
Allowance for inventory obsolescence and accounts receivable credit loss	5,919	2,318
Changes in operating assets and liabilities:
Accounts receivable	(16,914)	11,698
Inventory	(18,509)	(16,109)
Prepaid expenses and other assets	4,553	(8,057)
Accounts payable	17,780	2,793
Accrued liabilities	4,768	(3,016)
Accrued compensation and other employee benefits	(2,933)	(2,348)
Customer deposits	(104)	(207)
Deferred revenue and other liabilities	5,299	1,040
Operating lease liabilities	(3,904)	(3,601)
Net cash used in operating activities	(86,896)	(100,525)
Investing activities
Purchases of property and equipment	(9,477)	(11,497)
Purchase of internal-use software assets	(5,809)	(5,343)
Purchase of intellectual property	0	(750)
Proceeds from sale of short-term investments	0	7,700
Proceeds from maturity of short-term investments	81,476	167,774
Purchases of short-term investments	0	(49,500)
Net cash provided by investing activities	66,190	108,384
Financing activities
Tax withholdings related to net share settlements of restricted stock units	(490)	(1,504)
Proceeds from issuance of common stock for employee stock purchase plan	2,220	2,669
Proceeds from exercise of stock options	112	1,417
Repayment of finance lease obligations	(170)	(257)
Net cash provided by financing activities	1,672	2,325
Effect of exchange rate changes on cash, restricted cash and cash equivalents	(16)	(183)
Net increase (decrease) in cash, restricted and cash equivalents	(19,050)	10,001
Cash, restricted cash and cash equivalents
Beginning of period	113,148	107,068
End of period	94,098	117,069
Supplemental disclosures
Operating lease right-of-use assets obtained in exchange for lease obligations	0	2,126
Cash and cash equivalents	93,802	117,069
Restricted cash and cash equivalents	$ 296	$ 0