Acquisitions, License Agreements and Other Investments Schedule of Intangible Assets Acquired (Details) - Sucampo [Member] $ in Millions	Feb. 13, 2018 USD ($)
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 919.5
Amitiza [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Cash Flow Discount Rate	14.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 634.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	9 years
Rescula [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Cash Flow Discount Rate	14.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 11.0
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
VTS-270 [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Business Combination, Cash Flow Discount Rate	15.00%
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	$ 274.5

Business Combination, Cash Flow Discount Rate

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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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.

+ References

No definition available.

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=84161108&loc=d3e4845-128472

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