Consolidated Balance Sheets - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 186,964,000	$ 644,588,000
Restricted cash	3,915,000	3,907,000
Short-term investments	313,969,000
Accounts receivable, net	154,574,000	116,430,000
Inventory	188,864,000	76,769,000
Prepaid and other current assets	30,947,000	13,311,000
Total current assets	879,233,000	855,005,000
Property, plant and equipment, net	2,016,000	2,361,000
Long-term investments	62,469,000
Operating lease right-of-use asset	8,054,000	8,511,000
Other long-term assets	432,000	1,074,000
Intangible asset, net	13,817,000	15,258,000
TOTAL ASSETS	966,021,000	882,209,000
Current Liabilities:
Accounts payable	105,876,000	49,950,000
Accrued expenses and other current liabilities	198,641,000	139,826,000
Debt from royalty-bearing instrument	0	50,130,000
Current deferred revenue	2,926,000	2,342,000
Total current liabilities	307,443,000	242,248,000
Long-Term Liabilities:
Long-term deferred revenue	15,706,000	18,504,000
Long-term operating lease liability	9,153,000	9,443,000
Other long-term liabilities	6,214,000	3,751,000
Total liabilities	338,516,000	273,946,000
Commitments and contingencies (Note 8)
Stockholders’ Equity:
Series A Convertible Preferred Stock, £0.05 par, unlimited authorized; nil shares issued and nil outstanding at December 31, 2020 and 289,317,460 shares issued and outstanding at December 31, 2019 (equivalent to 28,931,746 ordinary shares upon future consolidation and redesignation at a 10:1 ratio)		21,850,000
Common stock, £0.50 par, unlimited authorized; 398,425,000 issued, 392,538,081 outstanding at December 31, 2020; 365,014,893 issued, 360,103,901 outstanding at December 31, 2019	290,115,000	269,173,000
Additional paid-in capital	1,817,649,000	1,764,317,000
Treasury stock; 5,886,919 shares at December 31, 2020; 4,910,992 shares at December 31, 2019	(51,082,000)	(35,900,000)
Accumulated deficit	(1,429,177,000)	(1,411,177,000)
Total stockholders’ equity	627,505,000	608,263,000
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 966,021,000	$ 882,209,000

Accrued liabilities and other liabilities current.

No definition available.

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- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).