{"cik":1579428,"taxonomy":"dei","tag":"EntityCommonStockSharesOutstanding","label":"Entity Common Stock, Shares Outstanding","description":"Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.","entityName":"AXSOME THERAPEUTICS, INC.","units":{"shares":[{"end":"2016-05-03","val":19149417,"accn":"0001558370-16-005875","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-11"},{"end":"2016-05-03","val":19149417,"accn":"0001558370-16-007810","fy":2016,"fp":"Q1","form":"10-Q/A","filed":"2016-08-09","frame":"CY2016Q1I"},{"end":"2016-08-03","val":19149417,"accn":"0001558370-16-007816","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-09","frame":"CY2016Q2I"},{"end":"2016-11-09","val":19153417,"accn":"0001558370-16-010043","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-14","frame":"CY2016Q3I"},{"end":"2017-03-02","val":19196316,"accn":"0001558370-17-001426","fy":2016,"fp":"FY","form":"10-K","filed":"2017-03-07","frame":"CY2017Q1I"},{"end":"2017-05-03","val":23605201,"accn":"0001558370-17-004014","fy":2017,"fp":"Q1","form":"10-Q","filed":"2017-05-09"},{"end":"2017-08-04","val":23610967,"accn":"0001558370-17-006445","fy":2017,"fp":"Q2","form":"10-Q","filed":"2017-08-09","frame":"CY2017Q2I"},{"end":"2017-11-03","val":23671301,"accn":"0001558370-17-008545","fy":2017,"fp":"Q3","form":"10-Q","filed":"2017-11-08","frame":"CY2017Q3I"},{"end":"2018-03-02","val":25492992,"accn":"0001558370-18-001639","fy":2017,"fp":"FY","form":"10-K","filed":"2018-03-07","frame":"CY2018Q1I"},{"end":"2018-05-04","val":25685492,"accn":"0001558370-18-004333","fy":2018,"fp":"Q1","form":"10-Q","filed":"2018-05-08"},{"end":"2018-08-03","val":26252862,"accn":"0001558370-18-006756","fy":2018,"fp":"Q2","form":"10-Q","filed":"2018-08-08","frame":"CY2018Q2I"},{"end":"2018-11-02","val":29813168,"accn":"0001558370-18-009181","fy":2018,"fp":"Q3","form":"10-Q","filed":"2018-11-09","frame":"CY2018Q3I"},{"end":"2019-03-11","val":33280355,"accn":"0001558370-19-002068","fy":2018,"fp":"FY","form":"10-K","filed":"2019-03-15","frame":"CY2019Q1I"},{"end":"2019-05-03","val":33305310,"accn":"0001558370-19-004564","fy":2019,"fp":"Q1","form":"10-Q","filed":"2019-05-09"},{"end":"2019-08-02","val":34418554,"accn":"0001558370-19-007735","fy":2019,"fp":"Q2","form":"10-Q","filed":"2019-08-08","frame":"CY2019Q2I"},{"end":"2019-11-01","val":34508626,"accn":"0001558370-19-010432","fy":2019,"fp":"Q3","form":"10-Q","filed":"2019-11-07","frame":"CY2019Q3I"},{"end":"2020-03-06","val":37075422,"accn":"0001558370-20-002573","fy":2019,"fp":"FY","form":"10-K","filed":"2020-03-12","frame":"CY2020Q1I"},{"end":"2020-05-01","val":37075944,"accn":"0001558370-20-006302","fy":2020,"fp":"Q1","form":"10-Q","filed":"2020-05-11"},{"end":"2020-08-03","val":37284266,"accn":"0001558370-20-010231","fy":2020,"fp":"Q2","form":"10-Q","filed":"2020-08-10","frame":"CY2020Q2I"},{"end":"2020-10-30","val":37344201,"accn":"0001558370-20-012949","fy":2020,"fp":"Q3","form":"10-Q","filed":"2020-11-05"},{"end":"2020-10-30","val":37344201,"accn":"0001558370-20-013181","fy":2020,"fp":"Q3","form":"10-Q/A","filed":"2020-11-06","frame":"CY2020Q3I"},{"end":"2021-02-22","val":37405268,"accn":"0001564590-21-009924","fy":2020,"fp":"FY","form":"10-K","filed":"2021-03-01"},{"end":"2021-05-03","val":37570390,"accn":"0001564590-21-026119","fy":2021,"fp":"Q1","form":"10-Q","filed":"2021-05-10","frame":"CY2021Q1I"},{"end":"2021-08-02","val":37681948,"accn":"0001564590-21-042710","fy":2021,"fp":"Q2","form":"10-Q","filed":"2021-08-09","frame":"CY2021Q2I"},{"end":"2021-11-01","val":37691733,"accn":"0000950170-21-003466","fy":2021,"fp":"Q3","form":"10-Q","filed":"2021-11-08","frame":"CY2021Q3I"},{"end":"2022-02-22","val":38476573,"accn":"0000950170-22-002568","fy":2021,"fp":"FY","form":"10-K","filed":"2022-03-01"},{"end":"2022-04-26","val":38913550,"accn":"0000950170-22-006901","fy":2022,"fp":"Q1","form":"10-Q","filed":"2022-05-02","frame":"CY2022Q1I"},{"end":"2022-08-01","val":40304124,"accn":"0000950170-22-016143","fy":2022,"fp":"Q2","form":"10-Q","filed":"2022-08-09","frame":"CY2022Q2I"},{"end":"2022-10-31","val":43426162,"accn":"0000950170-22-022710","fy":2022,"fp":"Q3","form":"10-Q","filed":"2022-11-07","frame":"CY2022Q3I"},{"end":"2023-02-21","val":43516501,"accn":"0000950170-23-004728","fy":2022,"fp":"FY","form":"10-K","filed":"2023-02-28"},{"end":"2023-05-01","val":43573213,"accn":"0000950170-23-018976","fy":2023,"fp":"Q1","form":"10-Q","filed":"2023-05-09","frame":"CY2023Q1I"},{"end":"2023-07-31","val":47190970,"accn":"0000950170-23-039178","fy":2023,"fp":"Q2","form":"10-Q","filed":"2023-08-07","frame":"CY2023Q2I"},{"end":"2023-10-31","val":47319547,"accn":"0000950170-23-059470","fy":2023,"fp":"Q3","form":"10-Q","filed":"2023-11-06","frame":"CY2023Q3I"},{"end":"2024-02-13","val":47374375,"accn":"0000950170-24-019118","fy":2023,"fp":"FY","form":"10-K","filed":"2024-02-23","frame":"CY2023Q4I"},{"end":"2024-04-29","val":47495827,"accn":"0000950170-24-053697","fy":2024,"fp":"Q1","form":"10-Q","filed":"2024-05-06","frame":"CY2024Q1I"},{"end":"2024-07-29","val":48000205,"accn":"0000950170-24-090828","fy":2024,"fp":"Q2","form":"10-Q","filed":"2024-08-05","frame":"CY2024Q2I"},{"end":"2024-11-05","val":48462376,"accn":"0000950170-24-124758","fy":2024,"fp":"Q3","form":"10-Q","filed":"2024-11-12","frame":"CY2024Q3I"},{"end":"2025-02-11","val":48765403,"accn":"0000950170-25-022457","fy":2024,"fp":"FY","form":"10-K","filed":"2025-02-18","frame":"CY2024Q4I"},{"end":"2025-04-28","val":49236365,"accn":"0000950170-25-063634","fy":2025,"fp":"Q1","form":"10-Q","filed":"2025-05-05","frame":"CY2025Q1I"},{"end":"2025-07-28","val":49901487,"accn":"0000950170-25-102148","fy":2025,"fp":"Q2","form":"10-Q","filed":"2025-08-04","frame":"CY2025Q2I"},{"end":"2025-10-27","val":50412640,"accn":"0001193125-25-262664","fy":2025,"fp":"Q3","form":"10-Q","filed":"2025-11-03","frame":"CY2025Q3I"},{"end":"2026-02-16","val":51153289,"accn":"0001193125-26-064267","fy":2025,"fp":"FY","form":"10-K","filed":"2026-02-23"},{"end":"2026-04-27","val":51459766,"accn":"0001193125-26-204274","fy":2026,"fp":"Q1","form":"10-Q","filed":"2026-05-04","frame":"CY2026Q1I"},{"end":"2026-08-03","val":52380818,"accn":"0001193125-26-342360","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-08-10","frame":"CY2026Q2I"}]}}