CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Cash flows from operating activities:
Net income (loss)	$ (37,270)	$ (30,570)	$ (111,728)	$ (102,705)	$ (168,627)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	3,663	2,458	10,432	8,131	11,235
Accrued Interest	789	(1,213)	4,436	60	(651)
Asset write-downs and impairment of field equipment	230	450	2,915	784	1,159
Share-based compensation	29,321	31,364	85,016	97,278	160,035
Foreign currency remeasurement loss (gain)	890	(503)	2,212	763	(227)
Decrease (increase) in accounts receivables and prepaid expenses	3,577	5,411	(15,476)	(8,983)	(26,358)
Amortization of discount (premium)	(6,402)	(6,737)	(19,516)	(18,972)	(25,644)
Decrease (increase) in inventories	886	1,895	(3,684)	(867)	2,568
Decrease (increase) in other long-term assets	2,490	1,906	6,480	7,969	7,395
Increase (decrease) in accounts payables and accrued expenses	24,830	7,452	10,517	(1,245)	19,106
Increase (decrease) in other long-term liabilities	(2,430)	(1,537)	(2,631)	(5,131)	(6,360)
Net cash provided by (used in) operating activities	20,574	10,376	(31,027)	(22,918)	(26,369)
Cash flows from investing activities:
Purchase of property, equipment and field equipment	(5,655)	(10,683)	(21,752)	(33,913)	(42,855)
Proceeds from maturity of short-term investments	185,000	190,000	725,000	608,000	778,000
Purchase of short-term investments	(107,909)	(169,124)	(602,298)	(692,118)	(875,387)
Net cash provided by (used in) investing activities	71,436	10,193	100,950	(118,031)	(140,242)
Cash flows from financing activities:
Proceeds from issuance of shares, net	0	0	2,136	2,187	4,150
Proceeds from senior secured credit facility, net	99,979	0	99,979	96,922	96,922
Repayment and redemption of long-term debt	0	0	0	(12,913)	(12,913)
Exercise of options	538	100	6,036	1,434	2,156
Net cash provided by (used in) financing activities	100,517	100	108,151	87,630	90,315
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(22)	87	470	(46)	(174)
Increase (decrease) in cash, cash equivalents and restricted cash	192,505	20,756	178,544	(53,365)	(76,470)
Cash, cash equivalents and restricted cash at the beginning of the period	152,133	168,443	166,094	242,564	242,564
Cash, cash equivalents and restricted cash at the end of the period	344,638	189,199	344,638	189,199	166,094
Cash paid during the period for:
Income taxes paid (refunded), net	3,430	6,637	22,239	17,053	23,463
Interest paid	2,843	2,964	8,162	4,934	7,714
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	342,119	185,422	342,119	185,422	163,767
Restricted cash	2,519	3,777	2,519	3,777	2,327
Total cash, cash equivalents and restricted cash	344,638	189,199	344,638	189,199	166,094
Non-cash activities:
Right-of-use assets obtained (disposed) in exchange for lease liabilities	2,678	757	27,788	(610)	494
Purchase of property incurred but unpaid at period end	$ 370	$ 201	$ 370	$ 201	$ 1,619