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- Definition

Collaborative Agreement, Period from First Commercial Sale

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- Definition

Collaborative Arrangement. Maximum Milestone Payments

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- Definition

Collaborative Arrangement, License Termination, Written Notice Threshold

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- Definition

Collaborative Arrangement, Milestone Payment

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- Definition

Collaborative Arrangement, Milestone Payment Received

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- Definition

Collaborative Arrangement, Upfront Payment

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- Definition

Estimated milestone payment to be received.

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- Definition

License and Collaboration Agreements Proceeds as Up Front Payment

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- Definition

Proceeds From Development And License Agreement, Milestone Payment

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- Definition

Proceeds From Development And License Agreement, Upfront Payment

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Cash received from licensees for license fees during the current period.

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Strategic Alliances (Details) - USD ($)		1 Months Ended					3 Months Ended		18 Months Ended	51 Months Ended	94 Months Ended
Strategic Alliances (Details) - USD ($)	Oct. 12, 2017	Sep. 30, 2018	Jul. 31, 2018	May 31, 2016	Jan. 31, 2015	Dec. 31, 2010	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2019	Sep. 30, 2018	Dec. 31, 2018	Mar. 31, 2013
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Upfront payment from development and license agreement	$ 6,000,000
Milestone revenue recognized									$ 0
Contract liability							$ 73,000,000.0		73,000,000.0	$ 73,000,000.0		$ 91,100,000
Contract liabilities							65,288,000		65,288,000	65,288,000		63,503,000
Contract liabilities							7,708,000		7,708,000	7,708,000		$ 27,566,000
VFMCRP \| Development and License Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
License revenue, initial payment				$ 50,000,000
VFMCRP \| Regulatory Milestones
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Additional milestone payment			$ 2,000,000.0
Additional milestone payment to be received				35,000,000
VFMCRP \| Launch and Sales-based Milestones
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Additional milestone payment to be received				195,000,000
VFMCRP \| Exclusive Option
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Additional milestone payment to be received				$ 555,000,000
Pfizer \| Collaborative Arrangement, Product
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone revenue recognized										0
Additional milestone payment to be received					$ 275,000,000.0
Non-refundable and non-creditable upfront payment					295,000,000.0
Contract liability							65,700,000		65,700,000	65,700,000
Contract liabilities							62,400,000		62,400,000	62,400,000
Contract liabilities							3,400,000		$ 3,400,000	$ 3,400,000
Tesaro
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone revenue recognized							$ 0	$ 0
Additional milestone payment						$ 85,000,000
Upfront payment under license agreements						$ 6,000,000.0
Milestone payment received											$ 30,000,000
Period from first commercial sale						12 years
Written termination threshold						3 months
Minimum \| Pfizer \| Collaborative Arrangement, Product
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Each milestone payment					20,000,000.0
Maximum \| Pfizer \| Collaborative Arrangement, Product
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Each milestone payment					$ 90,000,000.0
Pharmsynthez
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Ownership percentage, equity method							9.00%		9.00%	9.00%
Phio Pharmaceuticals
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Maximum milestone payments to be received													$ 50,000,000.0
Phase Two Initiation
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Upfront payment from development and license agreement		$ 6,000,000
Regulatory and Development
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone payment from development and license agreement	31,000,000
Sales Revenue
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Milestone payment from development and license agreement	$ 75,000,000