Description of Business and Liquidity	12 Months Ended
Mar. 31, 2026
Description of Business and Liquidity [Abstract]
Description of Business and Liquidity	Description of Business and Liquidity (A) Description of Business Roivant Sciences Ltd. (inclusive of its consolidated subsidiaries, the “Company” or “RSL”) aims to improve the lives of patients by accelerating the development and commercialization of medicines that matter. The Company does this by creating nimble subsidiaries or “Vants” to develop and commercialize its medicines and technologies. Beyond therapeutics, the Company also incubates discovery-stage companies and health technology startups complementary to its biopharmaceutical business. The Company was founded on April 7, 2014 as a Bermuda exempted limited company. The Company’s subsidiaries are wholly owned subsidiaries and majority-owned or controlled subsidiaries. Refer to Note 4, “Equity Method Investments” for further discussion of the Company’s investments in unconsolidated entities. (B) Liquidity Historically, the Company has incurred significant operating losses and negative cash flows from operations since its inception. In December 2023, the Company sold its entire equity interest in its majority-owned subsidiary Telavant Holdings, Inc. (“Telavant”). At closing, the Company received approximately $5.2 billion in cash. As of March 31, 2026, the Company had cash, cash equivalents and marketable securities of approximately $4.3 billion and its accumulated deficit was $501.8 million. For the years ended March 31, 2026, 2025 and 2024, the Company had net losses from continuing operations of $397.9 million and $729.8 million and net income from continuing operations of approximately $4.5 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. 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.

Roivant Sciences Ltd. (inclusive of its consolidated subsidiaries, the “Company” or “RSL”) aims to improve the lives of patients by accelerating the development and commercialization of medicines that matter. The Company does this by creating nimble subsidiaries or “Vants” to develop and commercialize its medicines and technologies. Beyond therapeutics, the Company also incubates discovery-stage companies and health technology startups complementary to its biopharmaceutical business. The Company was founded on April 7, 2014 as a Bermuda exempted limited company.

The Company’s subsidiaries are wholly owned subsidiaries and majority-owned or controlled subsidiaries. Refer to Note 4, “Equity Method Investments” for further discussion of the Company’s investments in unconsolidated entities.

Historically, the Company has incurred significant operating losses and negative cash flows from operations since its inception. In December 2023, the Company sold its entire equity interest in its majority-owned subsidiary Telavant Holdings, Inc. (“Telavant”). At closing, the Company received approximately $5.2 billion in cash. As of March 31, 2026, the Company had cash, cash equivalents and marketable securities of approximately $4.3 billion and its accumulated deficit was $501.8 million. For the years ended March 31, 2026, 2025 and 2024, the Company had net losses from continuing operations of $397.9 million and $729.8 million and net income from continuing operations of approximately $4.5 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.

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.