CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 190,304	$ 173,759
Accounts receivable, less reserve for doubtful accounts of $164 at September 30, 2018 and $58 at December 31, 2017, respectively	30,784	27,585
Royalties and other receivables	46	153
Inventories, net	42,284	39,004
Prepaid expenses and other current assets	3,830	2,281
Total current assets	267,248	242,782
Property, plant and equipment, net	29,359	22,417
Intangible assets, net	136,534	144,753
Goodwill	326,977	327,333
Other assets	2,007	6,234
Total assets	762,125	743,519
Current liabilities:
Accounts payable	9,482	7,282
Accrued liabilities	17,964	17,929
Convertible senior notes, current portion	102,400
Total current liabilities	129,846	25,211
Convertible senior notes, net		99,250
Deferred tax liabilities	21,120	25,167
Other long-term liabilities	4,672	2,343
Commitments and contingencies (Note 14)
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, 43,853,389 shares at September 30, 2018 and 43,587,079 shares at December 31, 2017 issued and outstanding	439	436
Additional paid-in capital	639,027	628,983
Accumulated other comprehensive loss	(11,773)	(6,363)
Accumulated deficit	(21,206)	(31,508)
Total stockholders' equity	606,487	591,548
Total liabilities and stockholders' equity	$ 762,125	$ 743,519