CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenue:
Product revenue, net	$ 23,901us-gaap_SalesRevenueGoodsNet	$ 7,992us-gaap_SalesRevenueGoodsNet
License, collaboration, and other revenue	90aria_LicenseAndCollaborationRevenue	3,790aria_LicenseAndCollaborationRevenue
Total revenue	23,991us-gaap_Revenues	11,782us-gaap_Revenues
Operating expenses:
Cost of product revenue	695us-gaap_CostOfGoodsSold	1,288us-gaap_CostOfGoodsSold
Research and development expense	39,444us-gaap_ResearchAndDevelopmentExpense	28,554us-gaap_ResearchAndDevelopmentExpense
Selling, general and administrative expense	33,550	31,591
Total operating expenses	73,689us-gaap_OperatingExpenses	61,433us-gaap_OperatingExpenses
Loss from operations	(49,698)us-gaap_OperatingIncomeLoss	(49,651)us-gaap_OperatingIncomeLoss
Other income (expense), net:
Interest income	19us-gaap_InvestmentIncomeInterest	22us-gaap_InvestmentIncomeInterest
Interest expense	(3,856)us-gaap_InterestExpense	(33)us-gaap_InterestExpense
Foreign exchange gain (loss)	1,073	(41)
Other income (expense), net	(2,764)us-gaap_NonoperatingIncomeExpense	(52)us-gaap_NonoperatingIncomeExpense
Loss before provision for income taxes	(52,462)	(49,703)
Provision for income taxes	214us-gaap_IncomeTaxExpenseBenefit	119us-gaap_IncomeTaxExpenseBenefit
Net loss	$ (52,676)us-gaap_NetIncomeLoss	$ (49,822)us-gaap_NetIncomeLoss
Net loss per share - basic and diluted	$ (0.28)us-gaap_EarningsPerShareBasicAndDiluted	$ (0.27)us-gaap_EarningsPerShareBasicAndDiluted
Weighted-average number of shares of common stock outstanding - basic and diluted	187,837	186,252

Revenue from multiple-deliverable arrangements that include licensing fees and collaboration arrangements. Licensing revenue is 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. An entity may receive licensing fees for licenses that also generate royalty payments to the entity. Collaboration agreements include, but are not limited to, license fees, research and development, up-front and milestone payments.

No definition available.