Related Party Transactions	9 Months Ended
Dec. 31, 2022
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions Roivant Sciences, Inc. (“RSI”) and RSG Services Agreements In August 2018, the Company entered into amended and restated services agreements (the “Services Agreements”) with RSI and RSG, under which RSI and RSG agreed to provide services related to development, administrative and financial activities to the Company. Under each Services Agreement, the Company will pay or reimburse RSI or RSG, as applicable, for any expenses it, or third parties acting on its behalf, incurs for the Company. For any general and administrative and research and development activities performed by RSI or RSG employees, RSI or RSG, as applicable, will charge back the employee compensation expense plus a pre-determined mark-up. Employee compensation expense, inclusive of base salary and fringe benefits, is determined based upon the relative percentage of time utilized on Company matters. All other costs will be billed back at cost. The term of the Services Agreements will continue until terminated by the Company, RSI or RSG, as applicable, upon 90 days’ written notice. For the three and nine months ended December 31, 2022, the Company was charged $0 and $0.4 million, respectively, under the Services Agreements, which are included in the accompanying unaudited condensed consolidated statements of operations. For the three and nine months ended December 31, 2021, the Company was charged $0.2 million and $0.3 million, respectively, under the Services Agreements, of which $0 and $0.1 million, respectively, were treated as capital contributions in the accompanying unaudited condensed consolidated financial statements. RSL Information Sharing and Cooperation Agreement In December 2018, the Company entered into an amended and restated information sharing and cooperation agreement (the “Cooperation Agreement”) with RSL. The Cooperation Agreement, among other things: (1) obligates the Company to deliver to RSL periodic financial statements and other information upon reasonable request and to comply with other specified financial reporting requirements; (2) requires the Company to supply certain material information to RSL to assist it in preparing any future SEC filings; and (3) requires the Company to implement and observe certain policies and procedures related to applicable laws and regulations. The Company has agreed to indemnify RSL and its affiliates and their respective officers, employees and directors against all losses arising out of, due to or in connection with RSL’s status as a stockholder under the Cooperation Agreement and the operations of or services provided by RSL or its affiliates or their respective officers, employees or directors to the Company or any of its subsidiaries, subject to certain limitations set forth in the Cooperation Agreement. No amounts have been paid or received under this agreement. Subject to specified exceptions, the Cooperation Agreement will terminate upon the earlier of (1) the mutual written consent of the parties or (2) the later of when RSL no longer (a) is required by U.S. GAAP to consolidate the Company’s results of operations and financial position, account for its investment in the Company under the equity method of accounting or, by any rule of the SEC, include the Company’s separate financial statements in any filings it may make with the SEC and (b) has the right to elect directors constituting a majority of the Company’s board of directors. RSI Subleases In June 2020, the Company entered into two sublease agreements with RSI for two floors of the building the Company currently occupies as its headquarters in New York. The subleases will expire on February 27, 2024 and April 29, 2024, respectively, and have scheduled rent increases each year. During the three months ended December 31, 2022 and 2021, the Company incurred $0.3 million in each period in rent expense under these operating leases. During the nine months ended December 31, 2022 and 2021, the Company incurred $0.9 million in each period in rent expense under these operating leases. RSL Share Purchases In October 2022, RSL purchased 416,667 shares of the Company’s common stock pursuant to an underwritten offering on the same terms as other investors in the offering. See Note 7 – Stockholders’ Equity. On August 2, 2021, the Company and RSL entered into a share purchase agreement pursuant to which the Company issued 17,021,276 shares of the Company’s common stock, par value $0.0001 per share, to RSL at a per share price of $11.75 and received aggregate net proceeds of $200.0 million. Prior to the share issuance, the Company and RSL explored alternative potential transactions whereby the Company incurred additional costs, including $5.0 million in financial advisory fees, which are included in general and administrative expenses in the accompanying unaudited condensed consolidated statement of operations for the nine months ended December 31, 2021.

In August 2018, the Company entered into amended and restated services agreements (the “Services Agreements”) with RSI and RSG, under which RSI and RSG agreed to provide services related to development, administrative and financial activities to the Company. Under each Services Agreement, the Company will pay or reimburse RSI or RSG, as applicable, for any expenses it, or third parties acting on its behalf, incurs for the Company. For any general and administrative and research and development activities performed by RSI or RSG employees, RSI or RSG, as applicable, will charge back the employee compensation expense plus a pre-determined mark-up. Employee compensation expense, inclusive of base salary and fringe benefits, is determined based upon the relative percentage of time utilized on Company matters. All other costs will be billed back at cost. The term of the Services Agreements will continue until terminated by the Company, RSI or RSG, as applicable, upon 90 days’ written notice.

For the three and nine months ended December 31, 2022, the Company was charged $0 and $0.4 million, respectively, under the Services Agreements, which are included in the accompanying unaudited condensed consolidated statements of operations. For the three and nine months ended December 31, 2021, the Company was charged $0.2 million and $0.3 million, respectively, under the Services Agreements, of which $0 and $0.1 million, respectively, were treated as capital contributions in the accompanying unaudited condensed consolidated financial statements.

In December 2018, the Company entered into an amended and restated information sharing and cooperation agreement (the “Cooperation Agreement”) with RSL. The Cooperation Agreement, among other things: (1) obligates the Company to deliver to RSL periodic financial statements and other information upon reasonable request and to comply with other specified financial reporting requirements; (2) requires the Company to supply certain material information to RSL to assist it in preparing any future SEC filings; and (3) requires the Company to implement and observe certain policies and procedures related to applicable laws and regulations. The Company has agreed to indemnify RSL and its affiliates and their respective officers, employees and directors against all losses arising out of, due to or in connection with RSL’s status as a stockholder under the Cooperation Agreement and the operations of or services provided by RSL or its affiliates or their respective officers, employees or directors to the Company or any of its subsidiaries, subject to certain limitations set forth in the Cooperation Agreement. No amounts have been paid or received under this agreement.

Subject to specified exceptions, the Cooperation Agreement will terminate upon the earlier of (1) the mutual written consent of the parties or (2) the later of when RSL no longer (a) is required by U.S. GAAP to consolidate the Company’s results of operations and financial position, account for its investment in the Company under the equity method of accounting or, by any rule of the SEC, include the Company’s separate financial statements in any filings it may make with the SEC and (b) has the right to elect directors constituting a majority of the Company’s board of directors.

In June 2020, the Company entered into two sublease agreements with RSI for two floors of the building the Company currently occupies as its headquarters in New York. The subleases will expire on February 27, 2024 and April 29, 2024, respectively, and have scheduled rent increases each year. During the three months ended December 31, 2022 and 2021, the Company incurred $0.3 million in each period in rent expense under these operating leases. During the nine months ended December 31, 2022 and 2021, the Company incurred $0.9 million in each period in rent expense under these operating leases.

On August 2, 2021, the Company and RSL entered into a share purchase agreement pursuant to which the Company issued 17,021,276 shares of the Company’s common stock, par value $0.0001 per share, to RSL at a per share price of $11.75 and received aggregate net proceeds of $200.0 million. Prior to the share issuance, the Company and RSL explored alternative potential transactions whereby the Company incurred additional costs, including $5.0 million in financial advisory fees, which are included in general and administrative expenses in the accompanying unaudited condensed consolidated statement of operations for the nine months ended December 31, 2021.