CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income (loss)	$ 5,999	$ (18,615)	$ (89,364)	$ (58,102)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,700	1,400	6,781	3,782
Write-off of inventory and change in inventory reserve			581	559
Adjustment to property and equipment for sales type leases			0	(625)
Loss from impairment of property and equipment	28	626	322	1,038
Stock-based compensation			17,303	15,513
Non-cash interest expense			22	14
Accretion of discount on marketable securities			(482)	0
Non-cash lease expense			136	602
Change in allowance for expected credit losses			237	100
Loss on extinguishment of debt	0	0	626	0
Change in fair value of contingent earn-out liability	(14,078)	(7,245)	17,353	(9,754)
Change in fair value of contingently issuable common stock liability	(2,277)	(1,081)	3,560	(2,529)
Change in fair value of public warrant liability	(8,156)	1,146	5,345	(4,297)
Changes in operating assets and liabilities
Accounts receivable			2,107	(14,822)
Inventory			2,041	(4,401)
Commission assets			(1,757)	(1,656)
Contract assets			75	(1,938)
Other assets			352	(629)
Prepaid expenses and other current assets			(2,111)	(9,009)
Accounts payable			(6,396)	2,177
Deferred revenue			36,551	16,005
Accrued expenses and other current liabilities			278	(750)
Operating lease liability			(218)	(699)
Net cash used in operating activities			(6,658)	(69,421)
Cash flows from investing activities:
Development of internal-use software			(2,202)	(1,936)
Purchases of property and equipment			(51,646)	(17,554)
Proceeds from sale of property and equipment			60	312
Purchases of marketable securities			(58,652)	0
Proceeds from maturities of marketable securities			19,647	0
Net cash used in investing activities			(92,793)	(19,178)
Cash flows from financing activities:
Proceeds from exercise of stock options and warrants			616	571
Proceeds from long-term debt			1,876	0
Repayment of principal on long-term debt			(31,876)	(1,000)
Payment of debt issuance costs and prepayment penalty			(332)	0
Net cash provided by (used in) financing activities			(29,716)	(429)
Effect of exchange rate changes on cash and cash equivalents			1	35
Net increase (decrease) in cash, cash equivalents and restricted cash			(129,166)	(88,993)
Cash, cash equivalents and restricted cash
Cash, cash equivalents and restricted cash at beginning of period			230,058	308,167
Cash, cash equivalents and restricted cash at end of period	100,892	219,174	100,892	219,174
Supplemental disclosure of cash flow information
Cash paid for interest			710	478
Supplemental disclosure of non-cash activities
Transfer of property and equipment to inventory			191	0
Capital expenditures incurred but not yet paid			10,214	5,935
Capitalization of stock compensation			340	90
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	99,617	218,499	99,617	218,499
Restricted cash	1,000	400	1,000	400
Restricted cash, noncurrent	275	275	275	275
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	$ 100,892	$ 219,174	$ 100,892	$ 219,174