XML 26 R14.htm IDEA: XBRL DOCUMENT
v3.19.1

Co-Promotion Agreement | 3 Months Ended
--- | ---
Mar. 31, 2019
Co Promotion Agreement [Abstract] |
Co-Promotion Agreement |
(8) | Co-Promotion Agreement
On March 31, 2014, the Company entered into a Co-Promotion Agreement (the “Agreement”) with Kowa Pharmaceuticals America, Inc. related to the commercialization of Vascepa capsules in the United States. Under the terms of the Agreement, Amarin granted to Kowa Pharmaceuticals America, Inc. the right to be the sole co-promoter, together with the Company, of Vascepa in the United States during the term. The Agreement was amended on July 25, 2017 to reflect evolving promotional needs, including refinement of target lists. Amarin and Kowa Pharmaceuticals America, Inc. intentionally designed the co-promotion to naturally end as of December 31, 2018 and mutually agreed not to renew the agreement. During 2018, which was the last year of the Agreement, as amended, the Company incurred expense for both the annual co-promotion fee, which in 2018 was calculated as eighteen-and-a-half percent (18.5%) of Vascepa gross margin, plus accrual for co-promotion tail payments which are calculated as a percentage of the 2018 co-promotion fee. The accrued tail payments are paid over three years with declining amounts each year. Kowa Pharmaceuticals America, Inc. is eligible to receive $17.8 million in co-promotion tail payments, the present value of which of $16.6 million was fully accrued as of December 31, 2018. No tail payments were made during the three months ended March 31, 2019. As of March 31, 2019, of the $16.9 million the Company had accrued for tail payments under the Agreement, $9.5 million was classified as current on the condensed consolidated balance sheet.

X
- Definition Co-promotion agreement. + References No definition available. + Details
Name: | amrn_CoPromotionAgreementAbstract
Namespace Prefix: | amrn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Co promotion agreement disclosure. + References No definition available. + Details
Name: | amrn_CoPromotionAgreementDisclosureTextBlock
Namespace Prefix: | amrn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration