v2.4.0.6
Document and Entity Information (USD $)
12 Months Ended
Dec. 31, 2012
Jan. 08, 2013
Jun. 30, 2012
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2012    
Document Fiscal Year Focus 2012    
Document Fiscal Period Focus FY    
Entity Registrant Name WYNN LAS VEGAS LLC    
Entity Central Index Key 0001180638    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Common Stock, Shares Outstanding   0  
Entity Public Float     $ 0
Membership Interests Description Wynn Resorts Holdings, LLC owns all of the membership interests of the registrant.