v3.22.4
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Feb. 22, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-38246    
Entity Registrant Name Vivint Smart Home, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 98-1380306    
Entity Address, Address Line One 4931 North 300 West    
Entity Address, City or Town Provo    
Entity Address, State or Province UT    
Entity Address, Postal Zip Code 84604    
City Area Code 801    
Local Phone Number 377-9111    
Title of 12(b) Security Class A common stock, par value $0.0001 per share    
Trading Symbol VVNT    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 242.5
Entity Common Stock, Shares Outstanding   214,693,613  
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001713952