Organization	12 Months Ended
	Dec. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	OrganizationNovoCure Limited (including its consolidated subsidiaries, the "Company") was incorporated in the Bailiwick of Jersey and is principally engaged in the development, manufacture and commercialization of Tumor Treating Fields ("TTFields") devices, including Optune Gio, Optune Lua and Optune Pax (collectively, its "Products"), for the treatment of solid tumor cancers. The Company markets Optune Gio and Optune Lua in multiple countries around the globe with the majority of revenues coming from the use of Optune Gio in the U.S., Germany, France and Japan.