v3.26.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 23, 2026
Jun. 30, 2025
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Document Transition Report false    
Entity File Number 001-38791    
Entity Registrant Name Luminar Technologies, Inc./DE    
Entity Central Index Key 0001758057    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 83-1804317    
Entity Address, Address Line One 151 Gibraltar Court    
Entity Address, City or Town Sunnyvale    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94089    
City Area Code 800    
Local Phone Number 532-2417    
Title of 12(b) Security Class A Common Stock, par value $0.0001 per share    
Trading Symbol LAZRQ    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 151.6
Auditor Firm ID 185    
Auditor Name KPMG LLP    
Auditor Location Silicon Valley, CA    
Class A Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   73,698,139  
Class B Common Stock [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   4,872,578