Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (301,122)	$ (164,093)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,374	2,240
Amortization of operating lease right-of-use assets	3,531	2,682
Amortization of premium on marketable securities	1,111	979
Change in fair value of warrants	(6,645)	22,649
Vendor stock-in-lieu of cash program	32,487	2,744
Amortization of debt discount and issuance costs	2,427	0
Impairment of inventories	8,750	1,601
Share-based compensation	117,874	49,887
Deferred taxes	0	(1,264)
Product warranty and other	(623)	1,143
Changes in operating assets and liabilities:
Accounts receivable	6,457	5,748
Inventories	(6,648)	(6,658)
Prepaid expenses and other current assets	(4,685)	(16,971)
Other non-current assets	(1,371)	(88)
Accounts payable	8,379	3,330
Accrued and other current liabilities	5,716	5,910
Other non-current liabilities	(3,571)	(4,095)
Net cash used in operating activities	(133,559)	(94,256)
Cash flows from investing activities:
Cash received from acquisition of Optogration, Inc.	0	358
Purchases of marketable securities	(363,906)	(530,179)
Proceeds from maturities of marketable securities	254,068	306,907
Proceeds from sales of marketable securities	68,804	83,493
Purchases of property and equipment	(11,277)	(4,155)
Advances for capital projects and equipment	(2,009)	0
Net cash used in investing activities	(59,080)	(143,576)
Cash flows from financing activities:
Proceeds from exercise of warrants	0	153,927
Proceeds from exercise of stock options	2,891	4,738
Payments of employee taxes related to stock-based awards	(2,773)	(140)
Repurchase of common stock and redemption of warrants	(80,878)	(2)
Other financing activities	0	(362)
Net cash provided by (used in) financing activities	(80,760)	158,161
Net decrease in cash, cash equivalents and restricted cash	(273,399)	(79,671)
Beginning cash, cash equivalents and restricted cash	330,702	209,719
Ending cash, cash equivalents and restricted cash	57,303	130,048
Supplemental disclosures of cash flow information:
Cash paid for interest	3,863	53
Supplemental disclosures of noncash investing and financing activities:
Issuance of Class A common stock upon exercise of warrants	19,003	338,293
Operating lease right-of-use assets obtained in exchange for lease obligations	16,749	2,876
Purchases of property and equipment recorded in accounts payable and accrued liabilities	1,663	543
Vendor stock-in-lieu of cash program—advances for capital projects and equipment	21,024	0
Freedom Photonics
Cash flows from investing activities:
Acquisitions	(2,759)	0
Solfice
Cash flows from investing activities:
Acquisitions	(2,001)	0
Upon adoption of ASC 842
Supplemental disclosures of noncash investing and financing activities:
Operating lease right-of-use assets obtained in exchange for lease obligations	$ 0	$ 10,849