CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Cash flows from operating activities:
Net income (loss)	$ (53,061)	$ (4,647)	$ (92,534)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	2,722	2,610	10,624
Accrued Interest	(1,120)	(221)	(2,216)
Asset write-downs and impairment of field equipment	126	135	955
Share-based compensation	39,084	25,045	106,955
Foreign currency remeasurement loss (gain)	(127)	249	(3,256)
Decrease (increase) in accounts receivables	14,511	(7,461)	2,547
Amortization of discount (premium)	(4,056)	684	(1,536)
Decrease (increase) in inventories	(2,718)	(4,804)	(4,342)
Decrease (increase) in other long-term assets	1,534	1,863	7,107
Increase (decrease) in accounts payables and accrued expenses	(10,464)	(14,809)	14,257
Increase (decrease) in other long-term liabilities	(3,158)	(2,331)	(7,773)
Net cash provided by (used in) operating activities	(16,727)	(3,687)	30,788
Cash flows from investing activities:
Purchase of property, equipment and field equipment	(6,088)	(5,093)	(21,358)
Proceeds from maturity of short-term investments	326,287	279,000	1,179,289
Purchase of short-term investments	(237,912)	(291,317)	(1,297,888)
Net cash provided by (used in) investing activities	82,287	(17,410)	(139,957)
Cash flows from financing activities:
Proceeds from issuance of shares, net	0	0	5,224
Repayment of long-term debt	(7)	(7)	(28)
Exercise of options	5,211	3,148	10,295
Net cash provided by (used in) financing activities	5,204	3,141	15,491
Effect of exchange rate changes on cash, cash equivalents and restricted cash	41	(25)	(97)
Increase (decrease) in cash, cash equivalents and restricted cash	70,805	(17,981)	(93,775)
Cash, cash equivalents and restricted cash at the beginning of the period	115,834	209,609	209,609
Cash, cash equivalents and restricted cash at the end of the period	186,639	191,628	115,834
Cash paid during the period for:
Income taxes paid (refunded), net	1,712	1,173	5,480
Interest paid	1	1	41
Non-cash activities:
Right-of-use assets obtained in exchange for lease liabilities	$ 3,451	$ 3,580	$ 12,117