v3.19.3
Cover Page - shares
6 Months Ended
Sep. 30, 2019
Nov. 01, 2019
Cover page.    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 001-37929  
Entity Registrant Name Myovant Sciences Ltd.  
Entity Incorporation, State or Country Code D0  
Entity Tax Identification Number 98-1343578  
Entity Address, Address Line Two Suite 1, 3rd Floor  
Entity Address, Address Line One 11-12 St. James’s Square  
Entity Address, City or Town London  
Entity Address, Country GB  
Entity Address, Postal Zip Code SW1Y 4LB  
Country Region 44  
City Area Code 207  
Local Phone Number 400 3347  
Title of 12(b) Security Common Shares, $0.000017727 par value per share  
Trading Symbol MYOV  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   89,623,564
Entity Central Index Key 0001679082  
Amendment Flag false  
Current Fiscal Year End Date --03-31  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q2