XML 35 R22.htm IDEA: XBRL DOCUMENT
v3.21.2

Revenue Recognition (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Summarize Activity of the Net Product Revenue Allowance and Reserve Categories | The following tables summarize activity in each of the net product revenue allowance and reserve categories described above for the nine months ended September 30, 2021 and 2020:
In thousands |  | Trade Allowances |  |  | Rebates, Chargebacks and Discounts |  |  | Product Returns |  |  | Other Incentives |  |  | Total |
Balance as of December 31, 2020 |  | $ | 36,242 |  |  | $ | 141,201 |  |  | $ | 7,797 |  |  | $ | 5,587 |  |  | $ | 190,827 |
Provision related to current period sales |  |  | 90,761 |  |  |  | 497,726 |  |  |  | 2,647 |  |  |  | 36,437 |  |  |  | 627,571 |
Provision related to prior period sales |  |  | — |  |  |  | (854 | ) |  |  | — |  |  |  | — |  |  |  | (854 | )
Credits/payments made for current period sales |  |  | (27,635 | ) |  |  | (303,029 | ) |  |  | — |  |  |  | (31,796 | ) |  |  | (362,460 | )
Credits/payments made for prior period sales |  |  | (34,511 | ) |  |  | (131,320 | ) |  |  | (958 | ) |  |  | (5,589 | ) |  |  | (172,378 | )
Balance as of September 30, 2021 |  | $ | 64,857 |  |  | $ | 203,724 |  |  | $ | 9,486 |  |  | $ | 4,639 |  |  | $ | 282,706 |
In thousands |  | Trade Allowances |  |  | Rebates, Chargebacks and Discounts |  |  | Product Returns |  |  | Other Incentives |  |  | Total |
Balance as of December 31, 2019 |  | $ | 29,261 |  |  | $ | 90,997 |  |  | $ | 4,579 |  |  | $ | 3,720 |  |  | $ | 128,557 |
Provision related to current period sales |  |  | 95,239 |  |  |  | 437,030 |  |  |  | 2,534 |  |  |  | 50,403 |  |  |  | 585,206 |
Provision related to prior period sales |  |  | — |  |  |  | (3,872 | ) |  |  | — |  |  |  | — |  |  |  | (3,872 | )
Credits/payments made for current period sales |  |  | (32,364 | ) |  |  | (304,903 | ) |  |  | — |  |  |  | (46,768 | ) |  |  | (384,035 | )
Credits/payments made for prior period sales |  |  | (29,067 | ) |  |  | (85,731 | ) |  |  | (223 | ) |  |  | (3,721 | ) |  |  | (118,742 | )
Balance as of September 30, 2020 |  | $ | 63,069 |  |  | $ | 133,521 |  |  | $ | 6,890 |  |  | $ | 3,634 |  |  | $ | 207,114 |

X
- Definition Summary of net product revenue valuation allowances. + References No definition available. + Details
Name: | amrn_SummaryOfNetProductRevenueValuationAllowancesTableTextBlock
Namespace Prefix: | amrn_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration