v3.26.1
Equity-Based Compensation - Schedule of Recognized Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 28, 2025
Jun. 30, 2026
Jun. 28, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based payment arrangement, expense $ 9,477 $ 0 $ 32,359 $ 0
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based payment arrangement, expense 4,776 0 17,626 0
Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based payment arrangement, expense 2,213 0 6,779 0
Income Statement Location [Axis]: us-gaap:SellingAndMarketingExpense        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based payment arrangement, expense 2,422 0 7,774 0
Income Statement Location [Axis]: fubo:SubscriberRelatedExpenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based payment arrangement, expense $ 66 $ 0 $ 180 $ 0