Description of Business and Liquidity	9 Months Ended
Description of Business and Liquidity	Dec. 31, 2023
Description of Business and Liquidity [Abstract]
Description of Business and Liquidity	Note 1—Description of Business and Liquidity (A) Description of Business Roivant Sciences Ltd. (inclusive of its consolidated subsidiaries, the “Company” or “RSL”) aims to improve health by rapidly delivering innovative medicines and technologies to patients. The Company does this by building biotech and healthcare technology companies (“Vants”) and deploying technology to drive greater efficiency in research and development and commercialization. In addition to biopharmaceutical subsidiaries, the Company also builds technology Vants focused on improving the process of developing and commercializing medicines. The Company was founded on April 7, 2014 as a Bermuda exempted limited company. VTAMA® (tapinarof) was approved by the United States Food and Drug Administration (“FDA”) in May 2022 for the treatment of plaque psoriasis in adult patients. The Company has determined that it has one operating and reporting segment as it allocates resources and assesses financial performance on a consolidated basis. The Company’s subsidiaries are wholly owned subsidiaries and majority-owned or controlled subsidiaries. Refer to Note 3, “Equity Method Investments” for further discussion of the Company’s investments in unconsolidated entities. On September 30, 2021, RSL completed its business combination (the “Business Combination”) with Montes Archimedes Acquisition Corp. (“MAAC”), a special purpose acquisition company, and began trading on Nasdaq under the ticker symbol “ROIV.” (B) Liquidity The Company has incurred significant operating losses and negative cash flows from operations since its inception. In December 2023, the Company recognized a gain of approximately $5.3 billion on the sale of Telavant net assets. As of December 31, 2023, the Company had cash and cash equivalents of approximately $6.7 billion and its retained earnings was $727.3 million. For the nine months ended December 31, 2023 and 2022, the Company incurred net income of approximately $4.4 billion and a net loss of approximately $1.1 billion, respectively. The Company has historically financed its operations primarily through the sale of equity securities, sale of subsidiary interests, debt financings and revenue generated from licensing and collaboration arrangements. Through its subsidiary, Dermavant Sciences Ltd., the Company has launched its first commercial product, VTAMA, following approval by the FDA in May 2022. The Company is subject to risks common to companies in the biopharmaceutical industry including, but not limited to, uncertainties related to commercialization of products, regulatory approvals to market its product candidates, dependence on key products, dependence on third-party service providers, such as contract research organizations, and protection of intellectual property rights. Management expects to incur additional losses in the future to fund its operations and conduct product research and development and may require additional capital to fully implement its business plan. The Company expects its existing cash and cash equivalents will be sufficient to fund its committed operating expenses and capital expenditure requirements for at least the next 12 months from the date of issuance of these condensed consolidated financial statements.