Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 240,498	$ 219,454
Restricted cash	3,920	3,918
Short-term investments	63,203	234,674
Accounts receivable, net	123,379	163,653
Inventory	227,606	234,676
Prepaid and other current assets	27,914	22,352
Total current assets	686,520	878,727
Property, plant and equipment, net	999	1,425
Long-term investments	2,264	34,996
Long-term inventory	187,964	121,254
Operating lease right-of-use asset	8,462	7,660
Other long-term assets	456	456
Intangible asset, net	21,638	23,547
TOTAL ASSETS	908,303	1,068,065
Current Liabilities:
Accounts payable	93,157	114,922
Accrued expenses and other current liabilities	192,001	253,111
Current deferred revenue	2,198	2,649
Total current liabilities	287,356	370,682
Long-Term Liabilities:
Long-term deferred revenue	13,499	14,060
Long-term operating lease liability	9,924	8,576
Other long-term liabilities	9,697	7,648
Total liabilities	320,476	400,966
Commitments and contingencies (Note 5)
Stockholders’ Equity:
Common stock, GBP 0.50 par, unlimited authorized; 411,660,040 shares issued, 403,828,955 shares outstanding as of September 30, 2022 ; 404,084,775 shares issued, 396,598,008 shares outstanding as of December 31, 2021	298,596	294,027
Additional paid-in capital	1,878,923	1,855,246
Treasury stock; 831,085 shares as of September 30, 2022; 7,486,767 shares as of December 31, 2021	(61,585)	(60,726)
Accumulated deficit	(1,528,107)	(1,421,448)
Total stockholders’ equity	587,827	667,099
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 908,303	$ 1,068,065