Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 64,501	$ 375,937
Restricted cash	25,529
Accounts receivable	13,557	17,125
Inventories	58,706	9,510
Prepaid expenses and other current assets	13,645	4,852
Total current assets	175,938	407,424
Property and equipment, net	4,893	4,711
Intangible assets, net	242,917
Goodwill	9,600
Other assets	850	217
Total assets	434,198	412,352
Current liabilities:
Accounts payable	10,784	9,713
Accrued liabilities	51,103	26,648
Long-term debt in default	25,000
Current portion of long-term debt		3,449
Total current liabilities	86,887	39,810
Long-term liabilities:
Convertible 2.0% senior notes, net	229,782	209,754
Long-term debt, net current portion		555
Other liabilities	1,984	1,937
Total liabilities	$ 318,653	$ 252,056
Commitment and Contingencies (Note 9)
Stockholders' equity:
Common stock, $0.001 par value, 125,000 shares authorized at September 30, 2015 and December 31, 2014; 30,185 and 29,716 shares issued at September 30, 2015 and December 31, 2014, respectively; 28,934 and 28,465 shares outstanding at September 30, 2015 and December 31, 2014, respectively	$ 31	$ 30
Treasury stock, at cost; 1,251 shares at September 30, 2015 and December 31, 2014	(35,000)	(35,000)
Additional paid-in-capital	519,166	490,994
Accumulated deficit	(368,804)	(295,465)
Accumulated other comprehensive items	152	(263)
Total stockholders' equity	115,545	160,296
Total liabilities and stockholders' equity	$ 434,198	$ 412,352