Represents the consecutive number of trading days to determine the weighted average price per share of ordinary shares.

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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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No definition available.

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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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No definition available.

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Initial Cash Payment Per Collaboration Agreement.

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Represents the percentage of profit or loss sharing arrangement as per collaboration agreement.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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No definition available.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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No definition available.

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Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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No definition available.

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Represents the number of performance obligation.

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Represents the premium proceeds received by entity from sale of stock transaction.

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No definition available.

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Per share amount premium percentage received by entity for each share of common stock issued or sold in the stock transaction.

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No definition available.

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- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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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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No definition available.

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Price of a single share of a number of saleable stocks of a company.

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No definition available.

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Number of new stock issued during the period.

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Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

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Collaborative Arrangements - Development and Commercialization Agreement (Details)	1 Months Ended			3 Months Ended	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2015 USD ($) $ / shares shares	Jan. 31, 2015 USD ($) plan	Mar. 31, 2018 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Collaborative Arrangements
Percentage of profit share	33.00%		35.00%
Revenue from the recognition of previously deferred revenue				$ 16,000
Mylan
Collaborative Arrangements
Potential milestone or contingent payments				$ 205,000,000
Transaction price			$ 34,200,000
Number of performance obligations \| plan			2
Percentage of profit share			65.00%
Performance period (n years)			17 years	14 years
Deferred revenue				$ 300,000
Revenue from the recognition of previously deferred revenue				6,000
Mylan \| Purchase Agreement
Collaborative Arrangements
Equity investments made in the entity		$ 30,000,000
Number of shares purchased \| shares		1,585,790
Share Price \| $ / shares		$ 18.918
Price per share premium (as a percent)		10.00%
Premium proceeds from sale of ordinary shares						$ 4,200,000
Trading days		5 days
Mylan \| Development and Commercialization Agreement
Collaborative Arrangements
Initial cash payment						15,000,000
Mylan \| Revefenacin Monotherapy (TD-4208)
Collaborative Arrangements
Potential milestone or contingent payments						160,000,000
Mylan \| Future potential combination products
Collaborative Arrangements
Potential milestone or contingent payments				45,000,000
Mylan \| Milestone - 50% enrollment in Phase 3 twelve-month safety study \| Collaborative Arrangement
Collaborative Arrangements
Milestone payment					$ 15,000,000	$ 15,000,000
Mylan \| Sales milestones \| Revefenacin Monotherapy (TD-4208)
Collaborative Arrangements
Potential milestone or contingent payments				150,000,000
Mylan \| Regulatory actions \| Revefenacin Monotherapy (TD-4208) \| European Union
Collaborative Arrangements
Potential milestone or contingent payments				$ 10,000,000