Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current Assets:
Cash and cash equivalents	$ 117,562	$ 106,961
Restricted cash	600	600
Accounts receivable, net	17,504	13,826
Inventory	19,773	18,985
Prepaid and other current assets	5,741	3,152
Total current assets	161,180	143,524
Property, plant and equipment, net	102	243
Deferred tax assets	23,006	19,872
Other long-term assets	682	174
Intangible asset, net	8,933	9,417
TOTAL ASSETS	193,903	173,230
Current Liabilities:
Accounts payable	6,864	10,832
Accrued expenses and other current liabilities	38,334	24,226
Current portion of exchangeable senior notes, net of discount	15,273	2,266
Current portion of long-term debt from royalty-bearing instrument	13,471	12,476
Deferred revenue, current	1,172	923
Total current liabilities	75,114	50,723
Long-Term Liabilities:
Exchangeable senior notes, net of discount		136,734
Long-term debt from royalty-bearing instrument	88,645	91,512
Long-term debt derivative liabilities		8,170
Deferred revenue, long-term	14,236	13,308
Other long-term liabilities	731	335
Total liabilities	178,726	300,782
Commitments and contingencies (Note 7)
Stockholders' Equity (Deficit):
Series A Convertible Preferred Stock, £0.05 par, unlimited authorized; 328,184,640 shares issued and outstanding as of September 30, 2016 and December 31, 2015 (equivalent to 32,818,464 ordinary shares upon future consolidation and redesignation at a 10:1 ratio)	24,364	24,364
Common stock, £0.50 par, unlimited authorized; 269,952,889 issued, 269,181,463 outstanding as of September 30, 2016; 183,577,765 issued, 183,403,263 outstanding as of December 31, 2015	207,023	149,978
Additional paid-in capital	961,691	816,171
Treasury stock; 771,426 shares as of September 30, 2016; 174,502 shares as of December 31, 2015	(1,350)	(411)
Accumulated deficit	(1,176,551)	(1,117,654)
Total stockholders' equity (deficit)	15,177	(127,552)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)	$ 193,903	$ 173,230

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).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.