CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 32,722	$ 37,520
Restricted cash	0	1,509
Short-term investments	120,425	119,138
Accounts receivable, net	24,281	22,366
Inventories, net	48,769	29,263
Prepaid expenses and other current assets	3,429	4,461
Long-term investments	229,626	214,257
Fixed assets, net	17,941	24,431
Goodwill	77,809	60,632
Intangibles, net	27,123	23,761
Other assets	242	403
Total assets	2,252	2,588
LIABILITIES AND STOCKHOLDERS’ EQUITY	354,993	326,072
Accounts payable
Accrued expenses	13,299	6,758
Convertible senior notes	26,790	28,311
Current portion of royalty interest obligation	103,885	103,100
Current portion of deferred revenue	0	276
Income taxes payable	1,426	1,426
Income taxes payable	72	139
Total current liabilities	145,472	140,010
Other liabilities	8,795	9,508
Total liabilities	5,447	5,409
Commitments and contingencies (Note 12)	159,714	154,927
Preferred stock, par value $0.001; 5,000,000 shares authorized; none issued and outstanding at June 30, 2015 and December 31, 2014
Common stock, par value $0.001, 250,000,000 shares authorized; 36,607,839 shares issued and outstanding at June 30, 2015; 36,150,620 shares issued and outstanding at December 31, 2014	0	0
Additional paid-in capital	37	36
Accumulated deficit	504,146	481,334
Accumulated other comprehensive loss	(308,877)	(310,145)
Total stockholders’ equity	(27)	(80)
Total liabilities and stockholders’ equity	195,279	171,145
Total liabilities and stockholders’ equity	$ 354,993	$ 326,072