CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Cash flows from operating activities:
Net income (loss)	$ (38,760)	$ (53,061)	$ (207,043)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,815	2,722	10,969
Accrued Interest	1,622	(1,120)	(95)
Asset write-downs and impairment of field equipment	194	126	493
Share-based compensation	34,084	39,084	115,608
Foreign currency remeasurement loss (gain)	613	(127)	161
Decrease (increase) in accounts receivables and prepaid expenses	3,275	(14,511)	(29,414)
Amortization of discount (premium)	(5,381)	(4,056)	(23,084)
Decrease (increase) in inventories	(4,650)	(2,718)	(8,919)
Decrease (increase) in other long-term assets	1,174	1,534	4,072
Increase (decrease) in accounts payables and accrued expenses	(18,245)	(10,464)	14,869
Increase (decrease) in other long-term liabilities	(1,765)	(3,158)	(9,781)
Net cash provided by (used in) operating activities	(31,574)	(16,727)	(73,336)
Cash flows from investing activities:
Purchase of property, equipment and field equipment	(11,784)	(6,088)	(27,093)
Proceeds from maturity of short-term investments	258,000	326,287	1,214,982
Purchase of short-term investments	0	(237,912)	(1,003,741)
Net cash provided by (used in) investing activities	246,216	82,287	184,148
Cash flows from financing activities:
Proceeds from issuance of shares, net	0	0	4,416
Repayment of long-term debt	0	(7)	(10)
Exercise of options	213	5,211	11,381
Net cash provided by (used in) financing activities	213	5,204	15,787
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(56)	41	131
Increase (decrease) in cash, cash equivalents and restricted cash	214,799	70,805	126,730
Cash, cash equivalents and restricted cash at the beginning of the period	242,564	115,834	115,834
Cash, cash equivalents and restricted cash at the end of the period	457,363	186,639	242,564
Cash paid during the period for:
Income taxes paid (refunded), net	2,914	1,712	13,665
Interest paid	2	1	6
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	453,763	185,963	240,821
Restricted cash	3,600	676	1,743
Total cash, cash equivalents and restricted cash	457,363	186,639	242,564
Non-cash activities:
Right-of-use assets obtained in exchange for lease liabilities	282	3,451	18,063
Purchase of property incurred but unpaid at period end	$ 1,062	$ 0	$ 1,714