CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenues:
U.S. product sales, net	$ 77,415us-gaap_SalesRevenueGoodsNet	$ 17,523us-gaap_SalesRevenueGoodsNet
License fee, collaboration and other revenues	12,090	3,312
Total revenues	89,505us-gaap_SalesRevenueNet	20,835us-gaap_SalesRevenueNet
Costs and expenses:
Cost of product sales	21,026us-gaap_CostOfGoodsSold	2,837us-gaap_CostOfGoodsSold
Research and development expenses	6,988	6,498
Selling, general and administrative expenses	32,112	17,491
Restructuring expenses	571us-gaap_RestructuringCharges
Total costs and expenses	60,697us-gaap_CostsAndExpenses	26,826us-gaap_CostsAndExpenses
Operating income (loss)	28,808us-gaap_OperatingIncomeLoss	(5,991)us-gaap_OperatingIncomeLoss
Other income (expense):
Interest expense	(10,367)us-gaap_InterestExpense	(1,476)us-gaap_InterestExpense
Interest and dividend income, net	71us-gaap_InvestmentIncomeNet	265us-gaap_InvestmentIncomeNet
Other Income		100us-gaap_OtherIncome
Total other income (expense)	(10,296)us-gaap_NonoperatingIncomeExpense	(1,111)us-gaap_NonoperatingIncomeExpense
Net income (loss) before income taxes	18,512	(7,102)
Income tax expense	5,608us-gaap_CurrentIncomeTaxExpenseBenefit
Net income (loss)	$ 12,904	$ (7,102)
Net Income (Loss) per share:
Basic	$ 0.47us-gaap_EarningsPerShareBasic	$ (0.33)us-gaap_EarningsPerShareBasic
Diluted	$ 0.39us-gaap_EarningsPerShareDiluted	$ (0.33)us-gaap_EarningsPerShareDiluted
Weighted average shares outstanding used to compute net income (loss) per share:
Basic	27,213	21,824
Diluted	38,245	21,824

Revenue earned during the period relating to consideration received from another party for the right to use, but not own, certain of the entity's intangible assets. Licensing arrangements include, but are not limited to, rights to use a patent, copyright, technology, manufacturing process, software or trademark. Licensing fees are generally, but not always, fixed as to amount and not dependent upon the revenue generated by the licensing party. Consideration received may include upfront and milestone payments and certain reimbursement payments.

No definition available.