Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 232,995	$ 217,666
Restricted cash	524	523
Short-term investments	79,919	91,695
Accounts receivable, net	122,730	130,990
Inventory	227,021	228,732
Prepaid and other current assets	43,306	19,492
Total current assets	706,495	689,098
Property, plant and equipment, net	179	874
Long-term investments	67	1,275
Long-term inventory	122,318	163,620
Operating lease right-of-use asset	8,978	9,074
Other long-term assets	1,604	458
Intangible asset, net	20,377	21,780
TOTAL ASSETS	860,018	886,179
Current Liabilities:
Accounts payable	54,309	64,602
Accrued expenses and other current liabilities	214,598	192,678
Current deferred revenue	2,025	2,199
Total current liabilities	270,932	259,479
Long-Term Liabilities:
Long-term deferred revenue	3,331	13,147
Long-term operating lease liability	9,472	10,015
Other long-term liabilities	7,155	8,205
Total liabilities	290,890	290,846
Commitments and contingencies (Note 5)
Stockholders’ Equity:
Common stock, GBP 0.50 par, unlimited authorized; 417,092,401 shares issued, 408,133,807 shares outstanding as of June 30, 2023 ; 412,333,087 shares issued, 404,346,256 shares outstanding as of December 31, 2022	301,906	299,002
Additional paid-in capital	1,891,957	1,885,352
Treasury stock; 8,958,594 shares as of June 30, 2023; 7,986,831 shares as of December 31, 2022	(63,464)	(61,770)
Accumulated deficit	(1,561,271)	(1,527,251)
Total stockholders’ equity	569,128	595,333
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 860,018	$ 886,179