v3.26.1
Cover - shares
 3 Months Ended
Mar. 31, 2026
Apr. 30, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-42664  
Entity Registrant Name MNTN, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 26-4741839  
Entity Address, Address Line One 823 Congress Avenue #1827  
Entity Address, City or Town Austin  
Entity Address, State or Province TX  
Entity Address, Postal Zip Code 78768  
City Area Code 310  
Local Phone Number 895-2110  
Title of 12(b) Security Class A Common Stock, par value $0.0001 per share  
Trading Symbol MNTN  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell company false  
Entity Central Index Key 0001891027  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Class A Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   61,013,456
Class B Common Stock    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   12,910,630