CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 173,759	$ 122,233
Marketable securities		19,547
Accounts receivable, less reserve for doubtful accounts of $58 and $23, respectively	27,585	15,194
Royalties and other receivables	153	839
Inventories, net	39,004	24,696
Prepaid expenses and other current assets	2,281	1,644
Total current assets	242,782	184,153
Property, plant and equipment, net	22,417	14,956
Intangible assets, net	144,753	29,806
Goodwill	327,333	59,548
Restricted Cash		450
Other assets	6,234
Total assets	743,519	288,913
Current liabilities:
Accounts payable	7,282	5,061
Accrued liabilities	17,929	16,014
Total current liabilities	25,211	21,075
Convertible senior notes, net	99,250	95,272
Deferred tax liabilities	25,167	2,103
Other long-term liabilities	2,343	1,699
Commitments and contingencies (Note 6)
Stockholders' equity:
Preferred stock, $.01 par value, 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $.01 par value, 80,000,000 shares authorized, 43,587,079 shares at December 31, 2017 and 33,844,074 shares at December 31, 2016 issued and outstanding	436	338
Additional paid-in capital	628,983	242,036
Accumulated other comprehensive loss	(6,363)	(13,749)
Accumulated deficit	(31,508)	(59,861)
Total stockholders' equity	591,548	168,764
Total liabilities and stockholders' equity	$ 743,519	$ 288,913

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).

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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.