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

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Initial Cash Payment Per Collaboration Agreement.

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

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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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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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Amount, excluding 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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Price of a single share of a number of saleable stocks of a company.

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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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Revenue - Development and Commercialization Agreement (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended								12 Months Ended
	Jan. 30, 2015	Feb. 28, 2018	Feb. 28, 2015	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Collaborative Arrangements and Co-Promote Agreement
Milestone payment				$ 29,499	$ 12,427	$ 26,150	$ 5,338	$ 15,737	$ 12,838	$ 23,476	$ 8,319	$ 73,414	$ 60,370	$ 15,386
Equity investments made in the entity														$ 1
Percentage of profit share		33.00%										35.00%
Revenue from the recognition of previously deferred revenue												$ 31,245	130
Future potential combination products
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				7,500								7,500
Mylan
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				205,000								$ 205,000
Percentage of profit share												65.00%
Mylan \| Purchase Agreement
Collaborative Arrangements and Co-Promote Agreement
Equity investments made in the entity			$ 30,000
Number of shares purchased			1,585,790
Share Price			$ 18.918
Price per share premium (as a percent)			10.00%
Premium proceeds from sale of ordinary shares			$ 4,200
Trading days	5 days
Mylan \| Development and Commercialization Agreement
Collaborative Arrangements and Co-Promote Agreement
Initial cash payment																$ 15,000
Milestone payment																$ 15,000
Mylan \| Revefenacin Monotherapy (TD-4208)
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				160,000								$ 160,000
Mylan \| Future potential combination products
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				45,000								45,000
Mylan \| Milestone - 50% enrollment in Phase 3 twelve-month safety study \| Collaborative Arrangement
Collaborative Arrangements and Co-Promote Agreement
Milestone payment															$ 15,000
Mylan \| Sales milestones \| Revefenacin Monotherapy (TD-4208)
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				150,000								150,000
Mylan \| Regulatory actions \| Revefenacin Monotherapy (TD-4208) \| European Union
Collaborative Arrangements and Co-Promote Agreement
Potential milestone or contingent payments				$ 10,000								10,000
Pfizer
Collaborative Arrangements and Co-Promote Agreement
Initial cash payment												10,000
Pfizer \| Sales milestones
Collaborative Arrangements and Co-Promote Agreement
Milestone payment												240,000
Alfasigma
Collaborative Arrangements and Co-Promote Agreement
Milestone payment												125	10,678
Alfasigma \| Development and Commercialization Agreement
Collaborative Arrangements and Co-Promote Agreement
Milestone payment												$ 100	$ 10,700