CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (30,570)	$ (49,485)	$ (102,705)	$ (159,964)	$ (207,043)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,458	2,803	8,131	8,246	10,969
Accrued Interest	(1,213)	480	60	530	(95)
Asset write-downs and impairment of field equipment	450	112	784	374	493
Share-based compensation	31,364	26,346	97,278	98,170	115,608
Foreign currency remeasurement loss (gain)	(503)	1,398	763	2,185	161
Decrease (increase) in accounts receivables and prepaid expenses	5,411	2,642	(8,983)	24,094	29,414
Amortization of discount (premium)	(6,737)	(6,691)	(18,972)	(15,822)	(23,084)
Decrease (increase) in inventories	1,895	(4,080)	(867)	(8,250)	(8,919)
Decrease (increase) in other long-term assets	1,906	3,971	7,969	3,585	4,072
Increase (decrease) in accounts payables and accrued expenses	7,452	6,265	(1,245)	(3,992)	14,869
Increase (decrease) in other long-term liabilities	(1,537)	(3,075)	(5,131)	(7,934)	(9,781)
Net cash provided by (used in) operating activities	10,376	(19,314)	(22,918)	(58,778)	(73,336)
Cash flows from investing activities:
Purchase of property, equipment and field equipment	(10,683)	(7,253)	(33,913)	(20,272)	(27,093)
Proceeds from maturity of short-term investments	190,000	275,549	608,000	916,433	1,214,982
Purchase of short-term investments	(169,124)	(251,038)	(692,118)	(810,513)	(1,003,741)
Net cash provided by (used in) investing activities	10,193	17,258	(118,031)	85,648	184,148
Cash flows from financing activities:
Proceeds from issuance of shares, net	0	0	2,187	2,883	4,416
Proceeds from senior secured credit facility, net	0	0	96,922	0	0
Repayment and redemption of long-term debt	0	0	(12,913)	(10)	(10)
Exercise of options	100	1,171	1,434	11,004	11,381
Net cash provided by (used in) financing activities	100	1,171	87,630	13,877	15,787
Effect of exchange rate changes on cash, cash equivalents and restricted cash	87	(97)	(46)	(69)	131
Increase (decrease) in cash, cash equivalents and restricted cash	20,756	(982)	(53,365)	40,678	126,730
Cash, cash equivalents and restricted cash at the beginning of the period	168,443	157,494	242,564	115,834	115,834
Cash, cash equivalents and restricted cash at the end of the period	189,199	156,512	189,199	156,512	242,564
Cash paid during the period for:
Income taxes paid (refunded), net	6,637	1,202	17,053	8,745	13,665
Interest paid	2,964	0	4,934	1	6
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	185,422	154,860	185,422	154,860	240,821
Restricted cash	3,777	1,652	3,777	1,652	1,743
Total cash, cash equivalents and restricted cash	189,199	156,512	189,199	156,512	242,564
Non-cash activities:
Right-of-use assets obtained (disposed) in exchange for lease liabilities	757	4,693	(610)	10,477	18,063
Purchase of property incurred but unpaid at period end	$ 201	$ 0	$ 201	$ 0	$ 1,714