CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 94,094	$ 488,668
Marketable securities	23,906	70,773
Accounts receivable, net	59,750	27,008
Receivables from collaborative partners	747	1,070
Inventories	10,376	8,456
Income taxes receivable	13,891	4,030
Deferred tax assets, net	9,601	9,601
Prepaid and other current assets	19,798	8,014
Total current assets	232,163	617,620
Marketable securities, long-term	4,559	6,961
Property and equipment, net	16,013	7,055
Intangible assets, net	1,062,579	72,361
Other assets	7,445	7,068
TOTAL ASSETS	1,322,759	711,065
Current liabilities:
Accounts payable and accrued liabilities	113,925	52,686
Contingent consideration liability	2,482
Interest payable	18,156	2,683
Other current liabilities	1,098	2,130
Total current liabilities	135,661	57,499
Contingent consideration liability	12,238	14,252
Senior Notes	562,516
Convertible Notes	236,315	229,891
Deferred tax liabilities, net, non-current	18,994	32,589
Other long-term liabilities	$ 10,937	$ 12,387
Commitments and contingencies (Note 12)
Shareholders' equity:
Preferred stock
Common stock	$ 252,635	$ 239,961
Additional paid-in capital	79,067	76,809
Retained earnings	14,428	47,714
Accumulated other comprehensive loss, net of tax	(32)	(37)
Total shareholders' equity	346,098	364,447
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 1,322,759	$ 711,065