{
  "cik": 1520262,
  "cik_padded": "0001520262",
  "entityName": "Alkermes plc.",
  "fiscal_years": [
    {
      "accn": "0001193125-26-068925",
      "filed": "2026-02-25",
      "fiscal_year": 2025,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 40420000.0,
        "cash": 388570000.0,
        "eps_diluted": 1.43,
        "free_cash_flow": 480334000.0,
        "net_income": 241664000.0,
        "operating_cash_flow": 520754000.0,
        "operating_income": 253956000.0,
        "revenue": 1475899000.0,
        "stockholders_equity": 1819295000.0,
        "total_assets": 2486993000.0,
        "total_liabilities": 667698000.0
      },
      "period_end": "2025-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.367009198618146,
        "net_margin": 0.16374020173467155,
        "operating_margin": 0.1720686849167863,
        "revenue_growth_yoy": -0.052472599432985455,
        "roa_avg2y": 0.10639991546616885,
        "roa_period_end": 0.09717116212228985,
        "roe_avg2y": 0.14716442487102163,
        "roe_period_end": 0.1328338724615854
      }
    },
    {
      "accn": "0001193125-26-068925",
      "filed": "2026-02-25",
      "fiscal_year": 2024,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD",
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "buybacks": 200282000.0,
        "capex": 33484000.0,
        "cash": 291146000.0,
        "eps_diluted": 2.17,
        "free_cash_flow": 405640000.0,
        "net_income": 367070000.0,
        "operating_cash_flow": 439124000.0,
        "operating_income": 420636000.0,
        "revenue": 1557632000.0,
        "stockholders_equity": 1464977000.0,
        "total_assets": 2055567000.0,
        "total_liabilities": 590590000.0
      },
      "period_end": "2024-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.4031394349535863,
        "net_margin": 0.23565900032870407,
        "operating_margin": 0.27004838113238555,
        "revenue_growth_yoy": -0.06358824218996577,
        "roa_avg2y": 0.17513759038501453,
        "roa_period_end": 0.17857360037400874,
        "roe_avg2y": 0.2751996785201129,
        "roe_period_end": 0.2505636607264141
      }
    },
    {
      "accn": "0001193125-26-068925",
      "filed": "2026-02-25",
      "fiscal_year": 2023,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 48048000.0,
        "cash": 457469000.0,
        "eps_diluted": 2.1,
        "free_cash_flow": 353305000.0,
        "net_income": 355757000.0,
        "operating_cash_flow": 401353000.0,
        "operating_income": 414122000.0,
        "revenue": 1663405000.0,
        "stockholders_equity": 1202686000.0,
        "total_assets": 2136223000.0,
        "total_liabilities": 933537000.0
      },
      "period_end": "2023-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.7762100830973337,
        "net_margin": 0.21387274896973377,
        "operating_margin": 0.24896041553319848,
        "revenue_growth_yoy": 0.4961436235996744,
        "roa_avg2y": 0.17353149272438106,
        "roa_period_end": 0.16653551618908702,
        "roe_avg2y": 0.3167297220178247,
        "roe_period_end": 0.2958020630488756
      }
    },
    {
      "accn": "0001193125-26-068925",
      "filed": "2026-02-25",
      "fiscal_year": 2022,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 38255000.0,
        "cash": 292473000.0,
        "eps_diluted": -0.97,
        "free_cash_flow": -17211000.0,
        "net_income": -158267000.0,
        "operating_cash_flow": 21044000.0,
        "operating_income": -6089000.0,
        "revenue": 1111795000.0,
        "stockholders_equity": 1043753000.0,
        "total_assets": 1963978000.0,
        "total_liabilities": 920225000.0
      },
      "period_end": "2022-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.8816501605264847,
        "net_margin": -0.1423526819242756,
        "operating_margin": -0.005476729073255411,
        "revenue_growth_yoy": -0.05278461956581933,
        "roa_avg2y": -0.07936242090309498,
        "roa_period_end": -0.08058491490230542,
        "roe_avg2y": -0.1467924540551871,
        "roe_period_end": -0.15163261806193612
      }
    },
    {
      "accn": "0001564590-23-002020",
      "filed": "2025-02-12",
      "fiscal_year": 2021,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 28020000.0,
        "cash": 337544000.0,
        "eps_diluted": -0.29,
        "free_cash_flow": 73695000.0,
        "net_income": -48169000.0,
        "operating_cash_flow": 101715000.0,
        "operating_income": 97746000.0,
        "revenue": 1173751000.0,
        "stockholders_equity": 1112584000.0,
        "total_assets": 2024484000.0,
        "total_liabilities": 911900000.0
      },
      "period_end": "2021-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.8196235070790161,
        "net_margin": -0.041038516687099735,
        "operating_margin": 0.08327660636710853,
        "revenue_growth_yoy": 0.12995833477736832,
        "roa_avg2y": -0.024240768111631634,
        "roa_period_end": -0.023793223359631393,
        "roe_avg2y": -0.04420054267684484,
        "roe_period_end": -0.043294708534366844
      }
    },
    {
      "accn": "0001564590-23-002020",
      "filed": "2024-02-21",
      "fiscal_year": 2020,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "eps_diluted": "USD/shares",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 42219000.0,
        "cash": 272961000.0,
        "eps_diluted": -0.7,
        "free_cash_flow": 40623000.0,
        "net_income": -110861000.0,
        "operating_cash_flow": 82842000.0,
        "operating_income": -112427000.0,
        "revenue": 1038756000.0,
        "stockholders_equity": 1066982000.0,
        "total_assets": 1949730000.0,
        "total_liabilities": 882748000.0
      },
      "period_end": "2020-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.827331670075034,
        "net_margin": -0.10672477463427407,
        "operating_margin": -0.10823234715371079,
        "revenue_growth_yoy": -0.11289238539404431,
        "roa_avg2y": -0.05904504580796473,
        "roa_period_end": -0.05685966774886779,
        "roe_avg2y": -0.10301037342085016,
        "roe_period_end": -0.10390147162745013
      }
    },
    {
      "accn": "0001564590-23-002020",
      "filed": "2023-02-16",
      "fiscal_year": 2019,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 90942000.0,
        "cash": 203771000.0,
        "free_cash_flow": -18865000.0,
        "net_income": -196620000.0,
        "operating_cash_flow": 72077000.0,
        "operating_income": -175479000.0,
        "revenue": 1170947000.0,
        "stockholders_equity": 1085442000.0,
        "total_assets": 1805403000.0,
        "total_liabilities": 719961000.0
      },
      "period_end": "2019-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.6632883194127369,
        "net_margin": -0.16791537106290894,
        "operating_margin": -0.14986075373180852,
        "revenue_growth_yoy": 0.07006746025218547,
        "roa_avg2y": -0.10831834420905628,
        "roa_period_end": -0.10890643252503734,
        "roe_avg2y": -0.1742523575071331,
        "roe_period_end": -0.181142797127806
      }
    },
    {
      "accn": "0001564590-22-005304",
      "filed": "2022-02-16",
      "fiscal_year": 2018,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 69431000.0,
        "cash": 266762000.0,
        "free_cash_flow": 29850000.0,
        "net_income": -139311000.0,
        "operating_cash_flow": 99281000.0,
        "operating_income": -99128000.0,
        "revenue": 1094274000.0,
        "stockholders_equity": 1171285000.0,
        "total_assets": 1825007000.0,
        "total_liabilities": 653722000.0
      },
      "period_end": "2018-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.5581237700474265,
        "net_margin": -0.1273090651884263,
        "operating_margin": -0.09058791490979408,
        "revenue_growth_yoy": 0.2113189000347586,
        "roa_avg2y": -0.07691993394131909,
        "roa_period_end": -0.0763345017306783,
        "roe_avg2y": -0.11735934523205283,
        "roe_period_end": -0.11893860162129627
      }
    },
    {
      "accn": "0001564590-21-005593",
      "filed": "2021-02-11",
      "fiscal_year": 2017,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 51300000.0,
        "cash": 191296000.0,
        "free_cash_flow": -32110000.0,
        "net_income": -157945000.0,
        "operating_cash_flow": 19190000.0,
        "operating_income": -147900000.0,
        "revenue": 903374000.0,
        "stockholders_equity": 1202808000.0,
        "total_assets": 1797227000.0,
        "total_liabilities": 594419000.0
      },
      "period_end": "2017-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "revenue_growth_yoy": "ratio",
        "roa_avg2y": "ratio",
        "roa_period_end": "ratio",
        "roe_avg2y": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.49419275561851933,
        "net_margin": -0.17483899248816104,
        "operating_margin": -0.1637195668682074,
        "revenue_growth_yoy": 0.21145402805976715,
        "roa_avg2y": -0.08964851787209285,
        "roa_period_end": -0.08788261026570378,
        "roe_avg2y": -0.13095031316728634,
        "roe_period_end": -0.1313135596038603
      }
    },
    {
      "accn": "0001564590-20-004489",
      "filed": "2020-02-13",
      "fiscal_year": 2016,
      "form": "10-K",
      "fundamental_units": {
        "capex": "USD",
        "cash": "USD",
        "free_cash_flow": "USD",
        "net_income": "USD",
        "operating_cash_flow": "USD",
        "operating_income": "USD",
        "revenue": "USD",
        "stockholders_equity": "USD",
        "total_assets": "USD",
        "total_liabilities": "USD"
      },
      "fundamentals": {
        "capex": 43657000.0,
        "cash": 186378000.0,
        "free_cash_flow": -107459000.0,
        "net_income": -208444000.0,
        "operating_cash_flow": -63802000.0,
        "operating_income": -208665000.0,
        "revenue": 745694000.0,
        "stockholders_equity": 1209481000.0,
        "total_assets": 1726423000.0,
        "total_liabilities": 516942000.0
      },
      "period_end": "2016-12-31",
      "ratio_units": {
        "leverage": "ratio",
        "net_margin": "ratio",
        "operating_margin": "ratio",
        "roa_period_end": "ratio",
        "roe_period_end": "ratio"
      },
      "ratios": {
        "leverage": 0.42740811968108633,
        "net_margin": -0.2795302094424791,
        "operating_margin": -0.2798265776578597,
        "roa_period_end": -0.12073750175941818,
        "roe_period_end": -0.17234169036140293
      }
    },
    {
      "accn": "0001558370-16-003498",
      "filed": "2016-02-25",
      "fiscal_year": 2015,
      "form": "10-K",
      "fundamental_units": {
        "eps_diluted": "USD/shares"
      },
      "fundamentals": {
        "eps_diluted": -1.52
      },
      "period_end": "2015-12-31",
      "ratios": {}
    },
    {
      "accn": "0001558370-16-003498",
      "filed": "2016-02-25",
      "fiscal_year": 2014,
      "form": "10-K",
      "fundamental_units": {
        "eps_diluted": "USD/shares"
      },
      "fundamentals": {
        "eps_diluted": -0.21
      },
      "period_end": "2014-12-31",
      "ratios": {}
    },
    {
      "accn": "0001558370-16-003498",
      "filed": "2016-02-25",
      "fiscal_year": 2013,
      "form": "10-K",
      "fundamental_units": {
        "eps_diluted": "USD/shares"
      },
      "fundamentals": {
        "eps_diluted": 0.14
      },
      "period_end": "2013-12-31",
      "ratios": {}
    },
    {
      "accn": "0001047469-13-006422",
      "filed": "2013-05-23",
      "fiscal_year": 2012,
      "form": "10-K",
      "fundamental_units": {
        "eps_diluted": "USD/shares"
      },
      "fundamentals": {
        "eps_diluted": -0.99
      },
      "period_end": "2012-03-31",
      "ratios": {}
    },
    {
      "accn": "0001047469-12-006168",
      "filed": "2012-05-18",
      "fiscal_year": 2010,
      "form": "10-K",
      "fundamental_units": {
        "buybacks": "USD"
      },
      "fundamentals": {
        "buybacks": 2684000.0
      },
      "period_end": "2010-03-31",
      "ratios": {}
    }
  ],
  "latest_filing": {
    "accn": "0001193125-26-068925",
    "filed": "2026-02-25",
    "form": "10-K"
  },
  "note": "Static grepcent export of verified SEC companyfacts-derived values. Monetary values are raw reported units from grepcent's resolved facts; no scaling and no FX conversion. Capex, dividends, and buybacks are reported as positive outflow magnitudes. ROE/ROA include both period-end basis (site-consistent) and average-of-two-years basis where the prior-year denominator exists.",
  "schema_version": "1",
  "sic": "2834",
  "sic_description": "Pharmaceutical Preparations",
  "source_urls": {
    "sec_companyfacts": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001520262.json",
    "sec_submissions": "https://data.sec.gov/submissions/CIK0001520262.json"
  },
  "ticker": "ALKS"
}
