| Component: (Network and Table) | |
|---|---|
| Network | 148 - Disclosure - Intangible Assets Estimated Amortization Expense (Detail) (http://www.amarincorp.com/taxonomy/role/DisclosureIntangibleAssetsEstimatedAmortizationExpense) |
| Table | Schedule of Finite-Lived Intangible Assets [Table] |
| Reporting Entity [Axis] | 0000897448 (http://www.sec.gov/CIK) |
| Legal Entity [Axis] | Entity [Domain] |
| Finite-Lived Intangible Assets [Line Items] | Period [Axis] | |
|---|---|---|
2016-12-31 | 2015-12-31 | |
2017 | ||
2018 | ||
2019 | ||
2020 | ||
2021 | ||
Thereafter | ||
Net | 8,772,000 | 9,417,000 |